text:
Lappet-faced vulture

The lappet-faced vulture or  Nubian vulture (Torgos tracheliotos) is an Old World vulture belonging to the bird order Accipitriformes, which also includes eagles, kites, buzzards and hawks. It is the only member of the genus Torgos. It is not closely related to the superficially similar New World vultures, and does not share the good sense of smell of some members of that family of birds.

The lappet-faced vulture was formerly considered monotypical, but now is separated into two subspecies. The nominate race lives throughout Africa. The subspecies T. t. negevensis, differing considerably in appearance from African vultures (as described below) is endemic to the Arabian peninsula.

Name
The scientific name is Greek, meaning "Cartilage-eared Vulture".

Distribution
This species is patchily distributed through much of Africa and the Arabian Peninsula, though it is absent from much of the central and western parts of the continent and declining elsewhere in its range. The lappet-faced vulture breeds in Senegal, Mali, Mauritania, Burkina Faso, Niger, Chad, Sudan, Egypt, Ethiopia, Somalia, Kenya, Tanzania, Uganda, Rwanda, the Democratic Republic of the Congo, Zambia, Malawi, Mozambique, Eswatini, South Africa, Zimbabwe, Botswana and Namibia. On the Arabian Peninsula, it breeds in Yemen, Oman, the United Arab Emirates and Saudi Arabia. It is also present in Gambia, Guinea, Ivory Coast, Benin, the Central African Republic and Angola, as well as a single vagrant record in Kuwait.

Habitat
This vulture prefers to live in dry savannah, thornbush, arid plains, deserts with scattered trees in wadis, open mountain slopes. They are usually found in undisturbed open country with a scattering of trees and apparently prefer areas with minimal grass cover. While foraging, they can wander into denser habitats and even into human inhabited areas, especially if drawn to road kills. They may be found in elevation from sea-level to 4500 m.

Description
The lappet-faced vulture is a very large species, ranking as the longest and largest winged vulture in its range, behind the closely related cinereous vulture, although some co-occurring Gyps vultures tend to be heavier on average, especially the Cape vulture and Eurasian griffon. This species measures around 95 – in body length, with a wingspan of 2.5 –. Among the standard measurements, the wing chord is 71.5 - 82.5 cm, the tail is 33 - 36 cm and the tarsus is 12.2 - 15 cm. The bill, at up to 10 cm long and 5 cm deep, ranks as one of the largest of any accipitrid, although a reported culmen length of 7.2 cm is slightly less than the culmen length of the cinereous vulture. Wild vultures of the subspecies T. t. tracheliotus range from 4.4 to 9.4 kg and in East Africa, average only 6.2 kg. On the other hand, captive vultures of the larger T. t. negevensis subspecies weighed 6.5 - 9.2 kg in males and 10.5 - 13.6 kg in females.

Overall, the lappet-faced vulture is blackish above with a strongly contrasting white thigh feathers. The black feathers on the back of African vultures are lined with brown, while Arabian birds are dark brown rather than black above. The underside can range from pure white to buff-brown. Like many vultures, it has a bald head. The head coloration can range from reddish in southern Africa to dull pink in more northern Africa to pink on the back of the head and gray on the front in the Arabian Peninsula. The combination of the colorful head and fleshy folds on the side of it are distinctive. The bald head of the lappet-faced vulture is advantageous, because a feathered head would become spattered with blood and other fluids when feeding, and thus be difficult to keep clean. While flying, lappet-faced vultures have large, broad wings held with the front edges held parallel and slightly pointed, serrated-looking wingtips. Compared to the somewhat similarly marked hooded vulture, it is considerably larger with a more massive bill and can only be confused at a great distance. The Gyps vultures are generally much paler, with less white lining the wings and more bulging secondaries. The cinereous vulture (which may overlap in range in the Arabian area) has a similar body shape but is all dark, with no contrasting plumage.

Feeding
The lappet-faced vulture is a scavenging bird, feeding mostly from animal carcasses, which it finds by sight or by watching other vultures. More so than many African vultures, they often find carrion on their own and start tearing through the skin. They are the most powerful and aggressive of the African vultures, and other vultures will usually cede a carcass to the lappet-faced vulture if it decides to assert itself. This is often beneficial to the less powerful vultures because the Lappet-face can tear through the tough hides and knotty muscles of large mammals that the others cannot penetrate. However hyenas are even more efficient in this regard (if more voracious eaters). However, lappet-faced vultures frequently hang around the edges of the throngs at large carcasses, waiting until the other vultures are done, to feed on remnant skin, tendons, and other coarse tissues that the others will not eat. Big game animals, up to the size of elephants, are preferred as carrion since they provide the most subsistence at a sitting. A full crop can contain up to 1.5 kg of meat.

Perhaps more than any other true vulture, lappet-faced vultures have been recorded as regularly feeding on freshly killed smaller mammals, birds, and reptiles. Some of these are probably road-kills or are pirated from eagles or other raptors but they are also believed to occasionally attack live animals, especially young and weak animals, and the nests and young of other birds. Flamingo colonies (including eggs, young and adults), young impalas, and guineafowl have reportedly been predated. They are believed to still hunt from an elevated perch and then drop on their prey, stunning them with the impact and tearing them apart with their substantial bills. Most remains found at nests are from small animals possibly caught alive.

Life history
Lappet-faced vultures are generally solitary birds. They do not nest in cohesive colonies as do many smaller vultures, with one tree or area usually only having one to two nests in it, though rarely up to 10 nests have been recorded in one area. The home range of a lappet-faced vulture is usually at least 8 to 15 km. Groups of up to 25 to 50 Lappet-faces may congregate at large carcasses or watering holes, though typically only from one to as many as seven turn up per carcass.

This species nests in November through July in the north of its range, throughout the year in eastern Africa and May to January in southern Africa. The huge nest, a pile of neatly formed sticks, measures 120 - 220 cm across and 30 - 70 cm deep. The nest is often lined with green leaves, as well as animal hair and skins. Nests are almost always placed in the main fork or top of an Acacia tree, though Balanites and Terminalia trees are sometimes also used, at 5 to 15 m off the ground. The clutch contains one or two eggs, which are incubated by both parents over the course of 54 to 56 days. The young fledge at 124 to 135 days old, although can be dependent on their parents for up to an age of 1 year or more, sometimes forcing parents to only nest in alternate years. There is a single remarkable record of a lappet-faced vulture pair successfully raising a white-headed vulture. The lappet-faced vulture does not usually breed until it is around six years of age.

Status
The lappet-faced vulture's world population is believed to have decreased perceptibly, and as of October 2015 their IUCN status was updated to Endangered. They are declining in the Sahel and several parts of their southern, northern and western distribution in Africa. They are apparently currently stable in Arabia but have a small population there and have been extirpated from Israel as a breeding bird. The declines are almost entirely due to human activities, including disturbances from habitat destruction and cultivation, disturbances at the nesting site (to which the species is reportedly quite sensitive) and ingestion of pesticides, which are usually set out for jackals and other small mammalian carnivores. Domestic cattle, who have replaced natural prey over much of the range, are now often sold off, rather than abandoned, due to the proliferation of markets and abattoirs and rarely left to die and be consumed by vultures. Lappet-faced vultures are also sometimes victims of direct persecution, including shooting and the use of strychnine and other poisons. In Namibia, 86 vultures died after eating poisoned cattle carcasses, because the farmers erroneously believed they were killing and eating the cattle. In some cases the poisoning is done by poachers, who fear the presence of vultures will alert authorities to their activities, the illegal killings of protected species. They are considered Vulnerable at the species level, with an estimated world population of under 9,000 individuals.

On 20 June 2019, the carcasses of 468 white-backed vultures, 17 white-headed vultures, 28 hooded vultures, 14 lappet-faced vultures and 10 cape vultures, altogether 537 vultures, besides 2 tawny eagles, were found in northern Botswana. It is suspected that they died after eating the carcasses of 3 elephants that were poisoned by poachers, possibly to avoid detection by the birds, which help rangers to track poaching activity by circling above where there are dead animals.

On the 3rd of April 2022 the Israel Nature and Parks Authority announced the first hatching of a lappet-faced vulture since 1994

title: Lappet-faced vulture


text:
Talk:Rüpell's vulture

From that article:
 * Copyright waived by Ron Eggert of birdingafrica.net for educational and non-profit making purposes, subject to acknowledgement.

Alas, that is not compatible with our GFDL licence, which does not allow restriction of fields of endeavour. Please submit it under the GFDL, or it will have to be reomved as a potential copyright infringement. The Anome

license: Creative Commons - Attribution Share-Alike - https://creativecommons.org/licenses/by-sa/4.0/

title: Talk:Rüpell's vulture


text:
Egyptian vulture

The Egyptian vulture (Neophron percnopterus), also called the white scavenger vulture or pharaoh's chicken, is a small Old World vulture in the monotypic genus Neophron. It is widely distributed from the Iberian Peninsula, North Africa, West Asia and India. The contrasting underwing pattern and wedge-shaped tail make it distinctive in flight as it soars in thermals during the warmer parts of the day. Egyptian vultures feed mainly on carrion but are opportunistic and will prey on small mammals, birds, and reptiles. They also feed on the eggs of other birds, breaking larger ones by tossing a large pebble onto them.

The use of tools is rare in birds and apart from the use of a pebble as a hammer, Egyptian vultures also use twigs to roll up wool for use in their nest. Egyptian vultures that breed in the temperate regions migrate south in winter while tropical populations are relatively sedentary. Populations of this species declined in the 20th century and some island populations are endangered by hunting, accidental poisoning, and collision with power lines.

Taxonomy and systematics
The Egyptian vulture was formally described by the Swedish naturalist Carl Linnaeus in 1758 in the tenth edition of his Systema Naturae under the binomial name Vultur percnopterus. The genus Neophron was created by Jules-César Savigny in the first natural history volume of the Description de l'Égypte' (1809). The genus Neophron contains only a single extant species. A few prehistoric species from the Neogene period in North America placed in the genus Neophrontops (the name meaning "looks like Neophron") are believed to have been very similar to these vultures in lifestyle, but the genetic relationships are unclear. A fossil species Neophron lolis has been described from the late Miocene of Spain. The genus Neophron is considered to represent the oldest branch of the vultures which consists of separated (or polyphyletic) clades. Along with its nearest evolutionary relatives, the lammergeier (Gypaetus barbatus) and the palm-nut vulture (Gypohierax angolensis), they are sometimes placed in a separate subfamily, the Gypaetinae.

Subspecies
There are three widely recognised subspecies of the Egyptian vulture, although there is considerable gradation due to movement and intermixing of the populations. The nominate subspecies, N. p. percnopterus, with a dark grey bill, has the largest range, occurring in southern Europe, northern Africa, the Middle East, Central Asia, and north-western India. Populations breeding in the temperate zone migrate south during winter.

The Indian subcontinent is the range of subspecies N. p. ginginianus, the smallest of the three subspecies, which is identifiable by a pale yellow bill. The subspecies name is derived from Gingee in southern India from where the French explorer Pierre Sonnerat described it as Le Vautour de Gingi and it was given a Latin name by John Latham in his Index Ornithologicus (1790).

A small population that is found only in the eastern Canary Islands was found to be genetically distinct and identified as a new subspecies, N. p. majorensis in 2002. Known locally as the guirre they are genetically more distant from N. p. percnopterus, significantly greater even than N. p. ginginianus is from N. p. percnopterus. Unlike neighbouring populations in Africa and southern Europe, it is non-migratory and consistently larger in size. The subspecies name majorensis is derived from "Majorata", the ancient name for the island of Fuerteventura. The island was named by Spanish conquerors in the 15th century after the "Majos", the main native Guanche tribe there. One study in 2010 suggested that the species established on the island about 2,500 years ago when the island was first colonized by humans.

Nikolai Zarudny and Härms described a subspecies, rubripersonatus, from Baluchistan in 1902. This was described as having a deeper reddish orange skin on the head and a yellow-tipped dark bill. This has rarely been considered a valid subspecies but the intermediate pattern of bill colouration suggests intermixing of subspecies.

Etymology
The genus name is derived from Greek mythology. Timandra was the mother of Neophron. Aegypius was a friend of Neophron and about the same age. It upset Neophron to know that his mother Timandra was having a love affair with Aegypius. Seeking revenge, Neophron made advances towards Aegypius' mother, Bulis. Neophron succeeded and enticed Bulis into entering the dark chamber where his mother and Aegypius were to meet soon. Neophron then distracted his mother, tricking Aegypius into entering the chamber and sleeping with his own mother Bulis. When Bulis discovered the deception she gouged out the eyes of her son Aegypius before killing herself. Aegypius prayed for revenge and Zeus, on hearing the prayer, changed Aegypius and Neophron into vultures. "Percnopterus" is derived from Greek for "black wings": "περκνός" (perknos, meaning "blue-black") and πτερόν (pteron, meaning wing).

Description

The adult's plumage is white, with black flight feathers in the wings. Wild birds usually appear soiled with a rusty or brown shade to the white plumage, derived from mud or iron-rich soil. Captive specimens without access to soil have clean white plumage. It has been suggested as a case of cosmetic colouration. The bill is slender and long, and the tip of the upper mandible is hooked. The nostril is an elongated horizontal slit. The neck feathers are long and form a hackle. The wings are pointed, with the third primary being the longest; the tail is wedge shaped. The legs are pink in adults and grey in juveniles. The claws are long and straight, and the third and fourth toes are slightly webbed at the base.

The bill is black in the nominate subspecies but pale or yellowish in adults of the smaller Indian ginginianus. Rasmussen and Anderton (2005) suggest that this variation may need further study, particularly due to the intermediate black-tipped bill described in rubripersonatus. The facial skin is yellow and unfeathered down to the throat. The sexes are indistinguishable in plumage but breeding males have a deeper orange facial skin colour than females. Females average slightly larger and are about 10–15% heavier than males. Young birds are blackish or chocolate brown with black and white patches. The adult plumage is attained only after about five years.

The adult Egyptian vulture measures 47 – from the point of the beak to the extremity of the tail feathers. In the smaller N. p. ginginianus males are about 47 – long while females are 52 – long. The wingspan is about 2.7 times the body length. Birds from Spain weigh about 1.9 kg while birds of the Canary Island subspecies majorensis, representing a case of island gigantism, are heavier with an average weight of 2.4 kg. The Egyptian vulture is one of the smallest true Old World vulture, the only smaller species appears to be the marginally lighter palm-nut vulture (which may be an outlier from other vultures). Additionally, the hooded vulture is only scarcely larger than the Egyptian species.

Distribution and movements
Egyptian vultures are widely distributed across the Old World with their breeding range from southern Europe to northern Africa east to western and southern Asia. They are rare vagrants in Sri Lanka. They occur mainly on the dry plains and lower hills. In the Himalayas, they go up to about 2000 m in summer. In Armenia, breeding pairs have been found up to 2,300 meters a.s.l.

Most Egyptian vultures in the subtropical zone of Europe migrate south to Africa in winter. Vagrants may occur as far south as in South Africa although they bred in the Transkei region prior to 1923. They nest mainly on rocky cliffs, sometimes adopting ledges on tall buildings in cities and on large trees. Like many other large soaring migrants, they avoid making long crossings over water. Italian birds cross over through Sicily and into Tunisia making short sea crossings by passing through the islands of Marettimo and Pantelleria with rare stops on the island country of Malta. Those that migrate through the Iberian Peninsula cross into Africa over the Strait of Gibraltar while others cross further east through the Levant. In summer, some African birds fly further north into Europe and vagrants have been recorded in England, Ireland, and southern Sweden.

Migrating birds can sometimes cover 500 km in a single day until they reach the southern edge of the Sahara, 3500 to 5500 km from their summer home. Young birds that have not reached breeding age may overwinter in the grassland and semi-desert regions of the Sahel.

Behaviour and ecology
The Egyptian vulture is usually seen singly or in pairs, soaring in thermals along with other scavengers and birds of prey, or perched on the ground or atop a building. On the ground, they walk with a waddling gait. They feed on a range of food, including mammal faeces (including those of humans), insects in dung, carrion, vegetable matter, and sometimes small animals. When it joins other vulture species at a dead animal, it tends to stay on the periphery and waits until the larger species leave. Pairs may also scrounge for food from other vultures, particularly griffons. Recently fledged young will sometimes fly to other nests, competing with young vultures for food, stealing or even soliciting food from the (unrelated) adults bringing food. Wild rabbits (Oryctolagus cuniculus) form a significant part of the diet of Spanish vultures. In the Iberian Peninsula, landfills are an important food source, with the vultures more likely to occupy territories close to landfill sites. Studies suggest that they feed on ungulate faeces to obtain carotenoid pigments responsible for their bright yellow and orange facial skin. The ability to assimilate carotenoid pigments may serve as a reliable signal of fitness.

Egyptian vultures are mostly silent but make high-pitched mewing or hissing notes at the nest and screeching noises when squabbling at a carcass. Young birds have been heard making a hissing croak in flight. They also hiss or growl when threatened or angry.Egyptian vultures roost communally on large trees, buildings or on cliffs. Roost sites are usually chosen close to a dump site or other suitable foraging area. In Spain and Morocco, summer roosts are formed mainly by immature birds. The favourite roost trees tended to be large dead pines. The number of adults at the roost increases towards June. It is thought that breeding adults may be able to forage more efficiently by joining the roost and following others to the best feeding areas. Breeding birds that failed to raise young may also join the non-breeding birds at the roost during June. Allopreening has been observed in Canarian Egyptian vultures between mated pairs of individuals as well as pairs of unrelated and same-sex individuals, particularly females.

Breeding
The breeding season is in spring. During the beginning of the breeding season, courting pairs soar high together and one or both may make steep spiralling or swooping dives. The birds are monogamous and pair bonds may be maintained for more than one breeding season and the same nest sites may be reused each year. The nest is an untidy platform of twigs lined with rags and placed on a cliff ledge, building, or the fork of a large tree. Old nest platforms of eagles may also be taken over. Nests placed on the ground are rare but have been recorded in subspecies N. p. ginginianus and N. p. majorensis. Extra-pair copulation with neighbouring birds has been recorded and may be a reason for adult males to stay close to the female before and during the egg laying period. Females may sometimes associate with two males and all three help in raising the brood. The typical clutch consists of two eggs which are incubated in turns by both parents. The eggs are brick red with the broad end covered more densely with blotches of red, brown, and black. The parents begin incubating soon after the first egg is laid leading to asynchronous hatching. The first egg hatches after about 42 days. The second chick may hatch three to five days later and a longer delay increases the likelihood that it will die of starvation. In cliffs where the nests are located close to each other, young birds have been known to clamber over to neighbouring nests to obtain food. In the Spanish population, young fledge and leave the nest after 90 to 110 days. Fledged birds continue to remain dependent on their parents for at least a month. Once the birds begin to forage on their own, they move away from their parents' territory; young birds have been found nearly 500 km away from their nest site. One-year-old European birds migrate to Africa and stay there for at least one year. A vulture that fledged in France stayed in Africa for three years before migrating north in spring. After migrating back to their breeding areas, young birds move widely in search of good feeding territories and mates. The full adult plumage is attained in the fourth or fifth year. Egyptian vultures have been known to live for up to 37 years in captivity and at least 21 years in the wild. The probability of survival in the wild varies with age, increasing till the age of 2 and then falling at the age of 5. Older birds have an annual survival probability varying from 0.75 for non-breeders to 0.83 for breeding birds.

Tool use
The nominate population, especially in Africa, is known for its use of stones as tools. When a large egg, such as that of an ostrich or bustard, is located, the bird walks up to it with a large pebble held in its bill and tosses the pebble by swinging the neck down over the egg. The operation is repeated until the egg cracks from the blows. They prefer using rounded pebbles to jagged rocks. This behaviour, although believed to have been first reported by Jane Goodall in 1966, was actually already known to Africans and was first reported by J. G. Wood in 1877. However, this has only been reported in Africa and has not been recorded in N. p. ginginianus. Tests with both hand-reared and wild birds suggest that the behaviour is innate, not learnt by observing other birds, and elicited once they associate eggs with food and have access to pebbles. Their ability to deal with ostrich eggs is utilized by brown-necked ravens which form groups that wait for the eggs to be broken before collectively mobbing the vultures and engaging in kleptoparasitism. Another case of tool-use described from Bulgaria involves the use of a twig as a tool to roll up and gather strands of wool to use for lining the nest.

Threats and conservation
Healthy adults do not have many predators, but human activities pose many threats. Collisions with power lines, hunting, intentional poisoning, lead accumulation from ingesting gunshot in carcasses, and pesticide accumulation take a toll on populations. Young birds at the nest are sometimes taken by golden eagles, eagle owls, and red foxes. Only rarely do adult birds attempt to drive away predators. Young birds that fall off of cliff ledges may be preyed on by mammalian predators such as jackals, foxes and wolves. Like all birds they serve as hosts for ectoparasitic birdlice including Aegypoecus perspicuus as well as organisms that live within them such as mycoplasmas.

Egyptian vulture populations have declined in most parts of its range. In Europe and most of the Middle East, populations in 2001 were half of those from 1980. In India, the decline has been rapid with a 35% decrease each year since 1999. In 1967–70, the area around Delhi was estimated to have 12,000–15,000 of these vultures, with an average density of about 5 pairs per 10 km2. The exact cause of the decline is not known, but has been linked with the use of the NSAID Diclofenac, which has been known to cause death in Gyps vultures.

In Italy, the number of breeding pairs declined from 30 in 1970 to 9 in the 1990s. Nearly all breeding failures were due to human activities. In Spain, which holds about 50% of the European population suggested causes of decline include poisoning by accumulation of lead, pesticides (especially due to large-scale use in the control of Schistocerca gregaria locust swarms), and electrocution. Windfarms may also pose a threat. Poorly designed power transmission lines in east Africa electrocute many wintering vultures. A shortage of carrion resulting from new rules for disposal of dead animals following the outbreak of Bovine Spongiform Encephalitis in parts of Europe during 2000 may have also had an effect on some populations. In Armenia direct persecution for trophy and for local illegal trade of animals as pets has been recorded.

The population of Egyptian vultures in the Canary Islands has been isolated from those in Europe and Africa for a significant period of time leading to genetic differentiation. The vulture population there declined by 30% in the ten years between 1987 and 1998. The Canarian Egyptian vulture was historically common, occurring on the islands of La Gomera, Tenerife, Gran Canaria, Fuerteventura, and Lanzarote. It is now restricted to Fuerteventura and Lanzarote, the two easternmost islands. The total population in 2000 was estimated at 130 individuals, including 25–30 breeding pairs. Island birds also appear to accumulate significant amounts of lead from scavenging on hunted animal carcasses. The long-term effect of this poison at a sub-lethal level is not known, though it is known to alter the mineralization of their bones. In order to provide safe and uncontaminated food for nesting birds, attempts have been made to create "vulture restaurants" where carcasses are made available. However, these interventions may also encourage other opportunist predators and scavengers to concentrate at the site and pose a threat to vultures nesting in the vicinity.

In culture
The Bible makes a reference to the Egyptian vulture under the Hebrew name of rachamah/racham which has been translated into English as "gier-eagle".

In Ancient Egypt, several hieroglyphs include the Egyptian vulture including what is listed as G1 in the Gardiner's sign list -. The bird was held sacred to Isis and Mut in ancient Egyptian religion. The use of the vulture as a symbol of royalty in Egyptian culture and their protection by Pharaonic law made the species common on the streets of Egypt and gave rise to the name "pharaoh's chicken". The habit of coprophagy in Egyptian vultures gives them the Spanish names of "churretero" and "moñiguero", which mean "dung-eater". British sportsmen in colonial India considered them to be among the ugliest birds, and their habit of feeding on faeces was particularly despised. In British India they were known as "shawks" a contraction of shit-hawk. A southern Indian temple at Thirukalukundram near Chengalpattu was famed for a pair of birds that reputedly visited the temple for "centuries". These birds were ceremonially fed by the temple priests and arrived before noon to feed on offerings made from rice, wheat, ghee, and sugar. Although normally punctual, the failure of the birds to turn up was attributed to the presence of "sinners" among the onlookers. Legend has it the vultures (or "eagles") represented eight sages who were punished by Shiva, with two of them leaving in each of a series of epochs.

title: Egyptian vulture


text:
George I of Greece

George I (Greek: Γεώργιος Α΄, Geórgios I; 24 December 1845 – 18 March 1913) was King of Greece from 30 March 1863 until his assassination in 1913.

Originally a Danish prince, George was born in Copenhagen, and seemed destined for a career in the Royal Danish Navy. He was only 17 years old when he was elected king by the Greek National Assembly, which had deposed the unpopular King Otto. His nomination was both suggested and supported by the Great Powers: the United Kingdom of Great Britain and Ireland, the Second French Empire and the Russian Empire. He married Grand Duchess Olga Constantinovna of Russia in 1867, and became the first monarch of a new Greek dynasty. Two of his sisters, Alexandra and Dagmar, married into the British and Russian royal families. Edward VII of the United Kingdom and Alexander III of Russia were his brothers-in-law, and George V of the United Kingdom, Christian X of Denmark, Haakon VII of Norway, and Nicholas II of Russia were his nephews.

George's reign of almost 50 years (the longest in modern Greek history) was characterized by territorial gains as Greece established its place in pre–World War I Europe. Britain ceded the Ionian Islands peacefully in 1864, while Thessaly was annexed from the Ottoman Empire after the Russo-Turkish War (1877–1878). Greece was not always successful in its territorial ambitions; it was defeated in the Greco-Turkish War (1897). During the First Balkan War, after Greek troops had captured much of Greek Macedonia, George was assassinated in Thessaloniki.

Family and early life
George was born on 24 December 1845 at his parents' residence the Yellow Palace, an 18th-century town house at 18 Amaliegade, next to the Amalienborg Palace complex in Copenhagen. He was the second son and third child of Prince Christian of Schleswig-Holstein-Sonderburg-Glücksburg and Princess Louise of Hesse-Kassel. He was baptised with the names Christian William Ferdinand Adolph George, and until his accession in Greece, he was known as Prince William, the namesake of both his grandfathers, William, Duke of Schleswig-Holstein-Sonderburg-Glücksburg, and Prince William of Hesse-Kassel.

Although William was of royal blood (his mother and father were both great-grandchildren of Frederick V of Denmark and great-great-grandchildren of George II of Great Britain) his family was relatively obscure and lived a comparatively normal life by royal standards. In 1853, however, his father was designated the heir presumptive to the childless Frederick VII of Denmark, and the family became princes and princesses of Denmark. William's siblings were Frederick (who succeeded their father as King of Denmark), Alexandra (who married Edward VII of the United Kingdom), Dagmar (who married Alexander III of Russia), Thyra (who married Ernest Augustus, Crown Prince of Hanover) and Valdemar.

William's mother tongue was Danish, with English as a second language. He was also taught French and German. He embarked on a career in the Royal Danish Navy, and enrolled as a naval cadet along with his elder brother Frederick. While Frederick was described as "quiet and extremely well-behaved", William was "lively and full of pranks".

King of the Hellenes
Following the expulsion of Otto of Greece in October 1862, the Greek people had rejected Otto's brother and designated successor Luitpold, although they still favored a monarchy rather than a republic. Many Greeks, seeking closer ties to the pre-eminent world power, the United Kingdom, rallied around Prince Alfred, Duke of Edinburgh, second son of Queen Victoria and Prince Albert. British prime minister Lord Palmerston believed that the Greeks were "panting for increase in territory", hoping for a gift of the Ionian Islands, which were then a British protectorate. The London Conference of 1832, however, prohibited any of the Great Powers' ruling families from accepting the crown. Queen Victoria herself was adamantly opposed to the idea. The Greeks nevertheless insisted on holding a plebiscite in which Alfred received over 95% of the 240,000 votes. There were 93 votes for a Republic and six for a Greek national to be chosen as king. King Otto received one vote.

With Prince Alfred's exclusion, the search began for an alternative candidate. The French favored Henri d'Orléans, duc d'Aumale, while the British proposed Queen Victoria's brother-in-law Ernest II, Duke of Saxe-Coburg and Gotha, her nephew Prince Leiningen, and Archduke Maximilian of Austria, among others. Eventually, the Greeks and Great Powers winnowed their choice to Prince William of Denmark, who had received six votes in the plebiscite. Aged only 17, he was elected King of the Hellenes on 30 March 1863 by the Greek National Assembly under the regnal name of George I. Paradoxically, he ascended a royal throne before his father, who became King of Denmark on 15 November the same year. There were two significant differences between George's elevation and that of his predecessor, Otto. First, he was acclaimed unanimously by the Greek Assembly, rather than imposed on the people by foreign powers. Second, he was proclaimed "King of the Hellenes" instead of "King of Greece", which had been Otto's style.

George's ceremonial enthronement in Copenhagen on 6 June was attended by a delegation of Greeks led by First Admiral and Prime Minister Konstantinos Kanaris. At the ceremony, it was announced that the British government would cede the Ionian Islands to Greece in honor of the new monarch.

Early reign

The new 17-year-old king toured Saint Petersburg, London and Paris before departing for Greece from the French port of Toulon on 22 October aboard the Greek flagship Hellas. He arrived in Athens on 30 October 1863, after docking at Piraeus the previous day. He was determined not to make the mistakes of his predecessor, so he quickly learned Greek. The new king was seen frequently and informally in the streets of Athens, where his predecessor had only appeared in pomp. King George found the palace in a state of disarray, after the hasty departure of King Otto, and took to putting it right by mending and updating the 40-year-old building. He also sought to ensure that he was not seen as too influenced by his Danish advisers, ultimately sending his uncle, Prince Julius, back to Denmark with the words, "I will not allow any interference with the conduct of my government". Another adviser, Count Wilhelm Sponneck, became unpopular for advocating a policy of disarmament and tactlessly questioning the descent of modern Greeks from classical antecedents. Like Julius, he was dispatched back to Denmark.

From May 1864, George undertook a tour of the Peloponnese, through Corinth, Argos, Tripolitsa, Sparta, and Kalamata, where he embarked on the frigate Hellas. Proceeding northwards along the coast accompanied by British, French and Russian naval vessels, the Hellas reached Corfu on 6 June, for the ceremonial handover of the Ionian Islands by the British High Commissioner, Sir Henry Storks.

Politically, the new king took steps to conclude the protracted constitutional deliberations of the Assembly. On 19 October 1864, he sent the Assembly a demand, countersigned by Konstantinos Kanaris, explaining that he had accepted the crown on the understanding that a new constitution would be finalized, and that if it was not he would feel himself at "perfect liberty to adopt such measures as the disappointment of my hopes may suggest". It was unclear from the wording whether he meant to return to Denmark or impose a constitution, but as either event was undesirable the Assembly soon came to an agreement.

On 28 November 1864, George took the oath to defend the new constitution, which created a unicameral assembly (Vouli) with representatives elected by direct, secret, universal male suffrage, a first in modern Europe. A constitutional monarchy was set up with George deferring to the legitimate authority of the elected officials, although he was aware of the corruption present in elections and the difficulty of ruling a mostly illiterate population. Between 1864 and 1910, there were 21 general elections and 70 different governments.

Internationally, George maintained a strong relationship with his brother-in-law the Prince of Wales, who in 1901 became King Edward VII, and sought his help in defusing the recurring and contentious issue of Crete, an overwhelmingly Greek island that remained under Ottoman Turk control. Since the reign of Otto, the Greek desire to unite Greek lands in one nation had been a sore spot with Great Britain and France, which had embarrassed Otto by occupying the main Greek port of Piraeus to dissuade Greek irredentism during the Crimean War. During the Cretan Revolt (1866–1869), the Prince of Wales unsuccessfully sought the support of the British Foreign Secretary, Lord Derby, to intervene in Crete on behalf of Greece. Ultimately, the Great Powers did not intervene, and the Ottomans put down the rebellion.

Marriage and children
George first met Grand Duchess Olga Constantinovna of Russia in 1863, when she was 12 years old, on a visit to the court of Tsar Alexander II between his election to the Greek throne and his arrival in Athens. They met for a second time in April 1867, when George went to the Russian Empire to visit his sister Dagmar, who had married the Tsar's heir, Tsarevich Alexander. While George was privately a Lutheran, the Romanovs were Orthodox Christians like the majority of Greeks, and George thought a marriage with a Russian grand duchess would re-assure his subjects on the question of his future children's religion. Olga was just 16 years old when she married George at the Winter Palace in Saint Petersburg on 27 October 1867. After a honeymoon at Tsarskoye Selo, the couple left Russia for Greece on 9 November. Over the next twenty years, they had eight children:

 * Constantine (1868–1923), who married Princess Sophia of Prussia and had six children, including three subsequent kings of Greece: George II, Alexander, and Paul;
 * George (1869–1957), who married Princess Marie Bonaparte and had two children;
 * Alexandra (1870–1891), who married Grand Duke Paul Alexandrovich of Russia and had two children;
 * Nicholas (1872–1938), who married Grand Duchess Elena Vladimirovna of Russia and had three children;
 * Maria (1876–1940), who married firstly Grand Duke George Mikhailovich of Russia, with whom she had two children, and secondly Admiral Perikles Ioannidis;
 * Olga (1880), who died aged seven months;
 * Andrew (1882–1944), who married Princess Alice of Battenberg and had five children, including Prince Philip, Duke of Edinburgh.
 * Christopher (1888–1940), who married firstly American widow Nancy Stewart Worthington Leeds and secondly Princess Françoise of Orléans, with whom he had one child.

As a marriage gift, the Tsar gave George a group of islands in the Petalioi Gulf, which the family visited on the royal yacht Amphitrite. George later purchased a country estate, Tatoi, north of Athens, and on Corfu he built a summer villa called Mon Repos. George developed Tatoi, building roads and planting grapes for making his own wine, Chateau Décélie. Intent on not letting his subjects know that he missed Denmark, he discreetly maintained a dairy at his palace at Tatoi, which was managed by native Danes and served as a bucolic reminder of his homeland. Queen Olga was far less careful in hiding her nostalgia for her native Russia, often visiting Russian ships at Piraeus two or three times before they weighed anchor. When alone with his wife, George usually conversed in German. Their children were taught English by their nannies, and when talking with his children he therefore spoke mainly English except to his son Andrew who refused to speak anything but Greek.

The King was related by marriage to the British, Russian and Prussian monarchs, maintaining a particularly strong attachment to the Prince and Princess of Wales, who visited Athens in 1869. Their visit occurred despite continued lawlessness which culminated in the kidnap of a party of British and Italian tourists, including Lord and Lady Muncaster. Two female hostages, a child and Lord Muncaster were released, but four of the others were murdered: British diplomat E. H. C. Herbert (the first cousin of Lord Carnarvon), Frederick Vyner (the brother-in-law of Lord Ripon, Lord President of the Council), Italian diplomat Count Boyl di Putifigari, and Mr. Lloyd (an engineer). George's relationships with other ruling houses assisted him and his small country but also often put them at the center of national political struggles in Europe.

From 1864 to 1874, Greece had 21 governments, the longest of which lasted a year and a half. In July 1874, Charilaos Trikoupis, a member of the Greek Parliament, wrote an anonymous article in the newspaper Kairoi blaming King George and his advisors for the continuing political crisis caused by the lack of stable governments. In the article, he accused the King of acting like an absolute monarch by imposing minority governments on the people. If the King insisted, he argued, that only a politician commanding a majority in the Vouli could be appointed prime minister, then politicians would be forced to work together more harmoniously to construct a coalition government. Such a plan, he wrote, would end the political instability and reduce the large number of smaller parties. Trikoupis admitted to writing the article after a man supposed by the authorities to be the author was arrested, whereupon he was taken into custody himself. After a public outcry, he was released and subsequently acquitted of the charge of "undermining the constitutional order". The following year, the King asked Trikoupis to form a government (without a majority) and then read a speech from the throne declaring that in future the leader of the majority party in parliament would be appointed prime minister.

Territorial expansion
Throughout the 1870s, Greece kept pressure on the Ottoman Empire, seeking territorial expansion into Epirus and Thessaly. The Russo-Turkish War of 1877–1878 provided the first potential alliance for the Greek kingdom. George's sister Dagmar was the daughter-in-law of Alexander II of Russia, and she sought to have Greece join the war. The French and British refused to countenance such an act, and Greece remained neutral. At the Congress of Berlin convened in 1878 to determine peace terms for the Russo-Turkish War, Greece staked a claim to Crete, Epirus and Thessaly.

The borders were still not finalized in June 1880 when a proposal very favorable to Greece that included Mount Olympus and Ioannina was offered by the British and French. When the Ottoman Turks strenuously objected, Prime Minister Trikoupis made the mistake of threatening a mobilization of the Hellenic Army. A coincident change of government in France, the resignation of Charles de Freycinet and his replacement with Jules Ferry, led to disputes among the Great Powers and, despite British support for a more pro-Greek settlement, the Turks subsequently granted Greece all of Thessaly but only the part of Epirus around Arta. When the government of Trikoupis fell, the new prime minister, Alexandros Koumoundouros, reluctantly accepted the new boundaries.

While Trikoupis followed a policy of retrenchment within the established borders of the Greek state, having learned a valuable lesson about the vicissitudes of the Great Powers, his main opponents, the Nationalist Party led by Theodoros Deligiannis, sought to inflame the anti-Turkish feelings of the Greeks at every opportunity. The next opportunity arose in 1885 when Bulgarians rose in revolt in Eastern Rumelia and united the province with Bulgaria. Deligiannis rode to victory over Trikoupis in elections that year saying that if the Bulgarians could defy the Treaty of Berlin, so should the Greeks.

Deligiannis mobilized the Hellenic Army, and the British Royal Navy blockaded Greece. The admiral in charge of the blockade was Prince Alfred, Duke of Edinburgh, who had been the first choice of the Greeks to be their king in 1863, and the First Lord of the Admiralty at the time was Lord Ripon, whose brother-in-law had been murdered in Greece 16 years before. This was not the last time that King George discovered that his family ties were not always to his advantage. Deligiannis was forced to demobilize and Trikoupis regained the premiership. Between 1882 and 1897, Trikoupis and Deligiannis alternated the premiership as their fortunes rose and fell.

National progress
George's silver jubilee in 1888 was celebrated throughout the Hellenic world, and Athens was decorated with garlands for the anniversary of his accession on 30 October. Visitors included the Crown Prince of Denmark, the Prince and Princess of Wales, the Duke and Duchess of Edinburgh, Grand Dukes Sergei and Paul of Russia, and Djevad Pasha from the Ottoman Empire, who presented the King with two Arabian horses as gifts. Jubilee events in the week of 30 October included balls, galas, parades, a thanksgiving service at the Metropolitan Cathedral of Athens, and a lunch for 500 invited guests in a blue and white tent on the Acropolis.

Greece in the last decades of the 19th century was increasingly prosperous and was developing a sense of its role on the European stage. In 1893, the Corinth Canal was built by a French company cutting the sea journey from the Adriatic Sea to Piraeus by 150 mi. In 1896, the Olympic Games were revived in Athens, and the Opening Ceremony of the 1896 Summer Olympics was presided over by the King. When Spiridon Louis, a shepherd from just outside Athens, ran into the Panathinaiko Stadium to win the Marathon event, the Crown Prince ran down onto the field to run the last thousand yards beside the Greek gold medalist, while the King stood and applauded.

The popular desire to unite all Greeks within a single territory (Megali Idea) was never far below the surface and another revolt against Turkish rule erupted in Crete. In February 1897, King George sent his son, Prince George, to take possession of the island. The Greeks refused an Ottoman offer of an autonomous administration, and Deligiannis mobilized for war. The Great Powers refused to allow the expansion of Greece, and on 25 February 1897 announced that Crete would be under an autonomous administration and ordered the Greek and Ottoman Turk militias to withdraw. The Turks agreed, but Prime Minister Deligiannis refused and dispatched 1400 troops to Crete under the command of Colonel Timoleon Vassos. While the Great Powers announced a blockade, Greek troops crossed the Macedonian border and Abdul Hamid II declared war. The announcement that Greece was finally at war with the Turks was greeted by delirious displays of patriotism and spontaneous parades in honor of the King in Athens. Volunteers by the thousands streamed north to join the forces under the command of Crown Prince Constantine. The war went badly for the ill-prepared Greeks; the only saving grace was the swiftness with which the Hellenic Army was overrun. By the end of April 1897, the war was lost. The worst consequences of defeat for the Greeks were mitigated by the intervention of the King's relations in Britain and Russia; nevertheless, the Greeks were forced to give up Crete to international administration, and agree to minor territorial concessions in favor of the Turks and an indemnity of 4 million Turkish pounds.

The jubilation with which Greeks had hailed their king at the beginning of the war was reversed in defeat. For a time, he considered abdication. It was not until the King faced down an assassination attempt on 27 February 1898 with great bravery that his subjects again held their monarch in high esteem. Returning from a trip to the beach at Phaleron in an open carriage, George and his daughter Maria were shot at by two riflemen. The King tried to shield his daughter; both were unhurt though the coachman and a horse were wounded. The gunmen (an Athens clerk called Karditzis and his assistant) fled into the Hymettus hills but they were spotted and arrested. Both were beheaded at Nauplia.

Later that year, after continued unrest in Crete, which included the murder of the British vice-consul, Prince George of Greece was made the Governor-General of Crete under the suzerainty of the Sultan, after the proposal was put forward by the Great Powers. Greece was effectively in day-to-day control of Crete for the first time in modern history.

Later reign and assassination
The death of Britain's Queen Victoria on 22 January 1901 left King George as the second-longest-reigning monarch in Europe. His always cordial relations with his brother-in-law, the new King Edward VII, continued to tie Greece to Britain. This was abundantly important in Britain's support of King George's son Prince George as Governor-General of Crete. Nevertheless, Prince George resigned in 1906 after a leader in the Cretan Assembly, Eleftherios Venizelos, campaigned to have him removed.

As a response to the Young Turk Revolution of 1908, Venizelos's power base was further strengthened, and on 8 October 1908 the Cretan Assembly passed a resolution in favor of union despite both the reservations of the Athens government under Georgios Theotokis and the objections of the Great Powers. The muted reaction of the Athens Government to the news from Crete led to an unsettled state of affairs on the mainland.

In August 1909, a group of army officers that had formed a military league, Stratiotikos Syndesmos, demanded, among other things, that the royal family be stripped of their military commissions. To save the King the embarrassment of removing his sons from their commissions, they resigned them. The military league attempted a coup d'état, and the King insisted on supporting the duly elected Hellenic Parliament in response. Eventually, the military league joined forces with Venizelos in calling for a National Assembly to revise the constitution. King George gave way, and new elections to the revising assembly were held in August 1910. After some political maneuvering, Venizelos became prime minister of a minority government. Just a month later, Venizelos called new elections for 11 December 1910, at which he won an overwhelming majority after most of the opposition parties declined to take part.

Venizelos and the King were united in their belief that the nation required a strong army to repair the damage of the humiliating defeat of 1897. Crown Prince Constantine was reinstated as Inspector-General of the Army, and later Commander-in-Chief. Under his and Venizelos's close supervision the military was retrained and equipped with French and British help, and new ships were ordered for the Hellenic Navy. Meanwhile, through diplomatic means, Venizelos had united the Christian countries of the Balkans in opposition to the ailing Ottoman Empire.

When the Kingdom of Montenegro declared war on Turkey on 8 October 1912, it was joined quickly by Serbia, Bulgaria, and Greece in what is known as the First Balkan War. George was on vacation in Denmark, so he immediately returned to Greece via Vienna, arriving in Athens to be met by a large and enthusiastic crowd on the evening of 9 October. The results of this campaign differed radically from the Greek experience at the hands of the Turks in 1897. The well-trained Greek forces, 200,000 strong, won victory after victory. On 9 November 1912, Greek forces commanded by Crown Prince Constantine rode into Thessaloniki, just a few hours ahead of a Bulgarian division. Three days later King George rode in triumph through the streets of Thessaloniki, the second-largest Greek city, accompanied by the Crown Prince and Venizelos. Less than two weeks before the King's death, Greek troops entered the chief Epirus town of Ioannina on 6 March 1913.

As he approached the fiftieth anniversary of his accession, the King made plans to abdicate in favor of his son Constantine immediately after the celebration of his golden jubilee in October 1913. Just as he did in Athens, George went about Thessaloniki without any meaningful protection force. While out on an afternoon walk near the White Tower on 18 March 1913, he was shot at close range in the back by Alexandros Schinas, who was "said to belong to a Socialist organization" and "declared when arrested that he had killed the King because he refused to give him money". George died instantly, the bullet having penetrated his heart. The Greek government denied any political motive for the assassination, saying that Schinas was an alcoholic vagrant. Schinas was tortured in prison and fell to his death from a police station window six weeks later.

The King's body was taken to Athens on the Amphitrite, escorted by a flotilla of naval vessels. For three days the coffin of the King, draped in the Danish and Greek flags, lay in the Metropolitan Cathedral in Athens before his body was committed to a tomb at his palace in Tatoi.

Honours
• 🇩🇰 Denmark:

• * Knight of the Elephant, 6 June 1863 – during his enthronement ceremony as King of the Hellenes

• * Cross of Honour of the Order of the Dannebrog, 9 September 1863

• * Grand Commander of the Dannebrog, 30 June 1871

• * Commemorative Medal for the Golden Wedding of King Christian IX and Queen Louise

• undefined: Knight of St. Andrew, September 1863

•  Prussia: Knight of the Black Eagle, 8 May 1867

•  undefined: Knight of the Annunciation, 15 October 1867

•   Austria-Hungary: Grand Cross of the Royal Hungarian Order of St. Stephen, 1867

• 🇸🇪 Sweden: Knight of the Seraphim, with Collar, 17 April 1868

•    Ernestine duchies: Grand Cross of the Saxe-Ernestine House Order, 1869

•  undefined:

• * Grand Cross of the Order of Charles III, 12 May 1869

• * Knight of the Golden Fleece, 12 November 1871

• * Grand Cross of Naval Merit, with White Decoration, 27 January 1892

•  Anhalt: Grand Cross of the Order of Albert the Bear, 1870

•  Brunswick: Grand Cross of the Order of Henry the Lion, 1871

•  Mecklenburg: Grand Cross of the Wendish Crown, with Crown in Ore, 24 August 1871

•  Württemberg: Grand Cross of the Württemberg Crown, 1871

•  Saxe-Weimar-Eisenach: Grand Cross of the White Falcon, 1873

•  Baden:

• * Knight of the House Order of Fidelity, 1876

• * Grand Cross of the Zähringer Lion, 1876

•  undefined:

• * Stranger Knight Companion of the Garter, 12 July 1876

• * Honorary Grand Cross of the Royal Victorian Order, 8 March 1901

• * Recipient of the Royal Victorian Chain, 27 November 1905

•  Hesse and by Rhine: Grand Cross of the Ludwig Order, 18 September 1879

•  undefined: Grand Cross of the Legion of Honour, 1880

•  undefined: Knight of St. Hubert, 1892

• 🇳🇴 Norway: Grand Cross of St. Olav, with Collar, 6 October 1906

•  undefined: Collar of the Order of Carol I, 1912

•  undefined: Knight of the Rue Crown

Military appointments

 * Admiral of the Fleet of the Danish Navy
 * Honorary admiral of the British Royal Navy, 31 October 1903

Arms

The distinctive Greek flag of blue and white cross was first hoisted during the Greek War of Independence in March 1822. This was later modified so that the shade of blue matched that of the Bavarian coat of arms of the first King of Greece, Otto. The shield is emblazoned with a smaller version of the royal arms of Denmark, including the three lions of the arms of Denmark proper, the two lions of Schleswig, the nettle leaf of Holstein, the horse head of Lauenburg, the two red bars of the House of Oldenburg and the cross of Delmenhorst. The supporters on either side both depicting Heracles are quite similar to the two wild men from the Danish royal arms. Beneath the shield is the motto in Greek, Ἰσχύς μου ἡ αγάπη τοῦ λαοῦ ("The people's love is my strength"). Beneath the motto dangles the Grand Cross of the Order of the Redeemer, Greece's premier decoration of honor.

title: George I of Greece


text:
Stardust (spacecraft)

Stardust was a 385-kilogram robotic space probe launched by NASA on 7 February 1999. Its primary mission was to collect dust samples from the coma of comet Wild 2, as well as samples of cosmic dust, and return them to Earth for analysis. It was the first sample return mission of its kind. En route to Comet Wild 2, it also flew by and studied the asteroid 5535 Annefrank. The primary mission was successfully completed on 15 January 2006 when the sample return capsule returned to Earth.

A mission extension, codenamed NExT, culminated in February 2011 with Stardust intercepting Comet Tempel 1, a small Solar System body previously visited by Deep Impact in 2005. Stardust ceased operations in March 2011.

On 14 August 2014, scientists announced the identification of possible interstellar dust particles from the Stardust capsule returned to Earth in 2006.

History
Beginning in the 1980s, scientists began seeking a dedicated mission to study a comet. During the early 1990s, several missions to study Comet Halley became the first successful missions to return close-up data. However, the US cometary mission, Comet Rendezvous Asteroid Flyby, was canceled for budgetary reasons. In the mid-1990s, further support was given to a cheaper, Discovery-class mission that would study Comet Wild 2 in 2004.

Stardust was competitively selected in the fall of 1995 as a NASA Discovery Program mission of low-cost with highly focused science goals. Construction of Stardust began in 1996, and was subject to the maximum contamination restriction, level 5 planetary protection. However, the risk of interplanetary contamination by alien life was judged low, as particle impacts at over 1000 mph, even into aerogel, were believed to be terminal for any known microorganism.

Comet Wild 2 was selected as the primary target of the mission for the rare chance to observe a long-period comet that has ventured close to the Sun. The comet has since become a short period comet after an event in 1974, where the orbit of Wild 2 was affected by the gravitational pull of Jupiter, moving the orbit inward, closer to the Sun. In planning the mission, it was expected that most of the original material from which the comet formed would still be preserved.

The primary science objectives of the mission included:
 * Providing a flyby of a comet of interest (Wild 2) at a sufficiently low velocity (less than 6.5 km/s) such that non-destructive capture of comet dust is possible using an aerogel collector.
 * Facilitating the intercept of significant numbers of interstellar dust particles using the same collection medium, also at as low a velocity as possible.
 * Returning as many high-resolution images of the comet coma and nucleus as possible, subject to the cost constraints of the mission.

The spacecraft was designed, built and operated by Lockheed Martin Astronautics as a Discovery-class mission in Denver, Colorado. JPL provided mission management for the NASA division for mission operations. The principal investigator of the mission was Dr. Donald Brownlee from the University of Washington.

Spacecraft design
The spacecraft bus measured 1.7 m in length, and 0.66 m in width, a design adapted from the SpaceProbe deep space bus developed by Lockheed Martin Astronautics. The bus was primarily constructed with graphite fiber panels with an aluminum honeycomb support structure underneath; the entire spacecraft was covered with polycyanate, Kapton sheeting for further protection. To maintain low costs, the spacecraft incorporated many designs and technologies used in past missions or previously developed for future missions by the Small Spacecraft Technologies Initiative (SSTI). The spacecraft featured five scientific instruments to collect data, including the Stardust Sample Collection tray, which was brought back to Earth for analysis.

Attitude control and propulsion
The spacecraft was three-axis stabilized with eight 4.41 N hydrazine monopropellant thrusters, and eight 1 N thrusters to maintain attitude control (orientation); necessary minor propulsion maneuvers were performed by these thrusters as well. The spacecraft was launched with 80 kilograms of propellant. Information for spacecraft positioning was provided by a star camera using FSW to determine attitude (Stellar Compass), an inertial measurement unit, and two Sun sensors. The Stellar Compass software was provided by Intelligent Decisions, Inc.

Communications
For communicating with the Deep Space Network, the spacecraft transmitted data across the X-band using a 0.6 m parabolic high-gain antenna, medium-gain antenna (MGA) and low-gain antennas (LGA) depending on mission phase, and a 15-watt transponder design originally intended for the Cassini spacecraft.

Power
The probe was powered by two solar arrays, providing an average of 330 watts of power. The arrays also included Whipple shields to protect the delicate surfaces from the potentially damaging cometary dust while the spacecraft was in the coma of Wild 2. The solar array design was derived primarily from the Small Spacecraft Technology Initiative (SSTI) spacecraft development guidelines. The arrays provided a unique method of switching strings from series to parallel depending on the distance from the Sun. A single nickel–hydrogen (NiH2) battery was also included to provide the spacecraft with power when the solar arrays received too little sunlight.

Computer
The computer on the spacecraft operated using a radiation-hardened RAD6000 32-bit processor card. For storing data when the spacecraft was unable to communicate with Earth, the processor card was able to store 128 megabytes, 20% of which was occupied by the flight system software. The system software is a form of VxWorks, an embedded operating system developed by Wind River Systems.

Sample collection
Comet and interstellar particles are collected in ultra low density aerogel. The tennis racket-sized collector tray contained ninety blocks of aerogel, providing more than 1,000 square centimeters of surface area to capture cometary and interstellar dust grains.

To collect the particles without damaging them, a silicon-based solid with a porous, sponge-like structure is used in which 99.8 percent of the volume is empty space. Aerogel has $1/1000$ the density of glass, another silicon-based solid to which it may be compared. When a particle hits the aerogel, it becomes buried in the material, creating a long track, up to 200 times the length of the grain. The aerogel was packed in an aluminium grid and fitted into a Sample Return Capsule (SRC), which was to be released from the spacecraft as it passed Earth in 2006.

To analyze the aerogel for interstellar dust, one million photographs will be needed to image the entirety of the sampled grains. The images will be distributed to home computer users to aid in the study of the data using a program titled, Stardust@home. In April 2014, NASA reported they had recovered seven particles of interstellar dust from the aerogel.

Stardust microchip
Stardust was launched carrying two sets of identical pairs of square 10.16 cm silicon wafers. Each pair featured engravings of well over one million names of people who participated in the public outreach program by filling out internet forms available in late 1997 and mid-1998. One pair of the microchips was positioned on the spacecraft and the other was attached to the sample return capsule.

Launch and trajectory
Stardust was launched at 21:04:15 UTC on 7 February 1999, by the National Aeronautics and Space Administration from Space Launch Complex 17A at the Cape Canaveral Air Force Station in Florida, aboard a Delta II 7426 launch vehicle. The complete burn sequence lasted for 27 minutes bringing the spacecraft into a heliocentric orbit that would bring the spacecraft around the Sun and past Earth for a gravity assist maneuver in 2001, to reach asteroid 5535 Annefrank in 2002 and Comet Wild 2 in 2004 at a low flyby velocity of 6.1 km/s. In 2004, the spacecraft performed a course correction that would allow it to pass by Earth a second time in 2006, to release the Sample Return Capsule for a landing in Utah in the Bonneville Salt Flats.

During the second encounter with Earth, the Sample Return Capsule was released on Jan 15, 2006. Immediately afterwards, Stardust was put into a "divert maneuver" to avoid entering the atmosphere alongside the capsule. Under twenty kilograms of propellant remained onboard after the maneuver. On 29 January 2006, the spacecraft was put in hibernation mode with only the solar panels and receiver active, in a 3-year heliocentric orbit that would return it to Earth vicinity on 14 January 2009.

A subsequent mission extension was approved on 3 July 2007, to bring the spacecraft back to full operation for a flyby of Comet Tempel 1 in 2011. The mission extension was the first to revisit a small Solar System body and used the remaining propellant, signaling the end of the useful life for the spacecraft.

Encounter with Annefrank
At 04:50:20 UTC on 2 November 2002, Stardust encountered asteroid 5535 Annefrank from a distance of 3079 km. The solar phase angle ranged from 130 degrees to 47 degrees during the period of observations. This encounter was used primarily as an engineering test of the spacecraft and ground operations in preparation for the encounter with Comet Wild 2 in 2003.

Encounter with Wild 2
At 19:21:28 UTC, on 2 January 2004, Stardust encountered Comet Wild 2 on the sunward side with a relative velocity of 6.1 km/s at a distance of 237 km. The original encounter distance was planned to be 150 km, but this was changed after a safety review board increased the closest approach distance to minimize the potential for catastrophic dust collisions.

The relative velocity between the comet and the spacecraft was such that the comet actually overtook the spacecraft from behind as they traveled around the Sun. During the encounter, the spacecraft was on the Sunlit side of the nucleus, approaching at a solar phase angle of 70 degrees, reaching a minimum angle of 3 degrees near closest approach and departing at a phase angle of 110 degrees. The AutoNav software was used during the flyby.

During the flyby the spacecraft deployed the Sample Collection plate to collect dust grain samples from the coma, and took detailed pictures of the icy nucleus.

New Exploration of Tempel 1 (NExT)

On 19 March 2006, Stardust scientists announced that they were considering the possibility of redirecting the spacecraft on a secondary mission to image Comet Tempel 1. The comet was previously the target of the Deep Impact mission in 2005, sending an impactor into the surface. The possibility of this extension could be vital for gathering images of the impact crater which Deep Impact was unsuccessful in capturing due to dust from the impact obscuring the surface.

On 3 July 2007 the mission extension was approved and renamed New Exploration of Tempel 1 (NExT). This investigation would provide the first look at the changes to a comet nucleus produced after a close approach to the Sun. NExT also would extend the mapping of Tempel 1, making it the most mapped comet nucleus to date. This mapping would help address the major questions of comet nucleus geology. The flyby mission was expected to consume almost all of the remaining fuel, signaling the end of the operability of the spacecraft. The AutoNav software (for autonomous navigation) would control the spacecraft for the 30 minutes prior to encounter.

The mission objectives included the following:

 * Primary objectives
 * Extend the current understanding of the processes that affect the surfaces of comet nuclei by documenting the changes that have occurred on Comet Tempel 1 between two successive perihelion passages, or orbits around the Sun.
 * Extend the geologic mapping of the nucleus of Tempel 1 to elucidate the extent and nature of layering, and help refine models of the formation and structure of comet nuclei.
 * Extend the study of smooth flow deposits, active areas and known exposure of water ice.

 * Secondary objectives
 * Potentially image and characterize the crater produced by Deep Impact in July 2005, to better understand the structure and mechanical properties of cometary nuclei and elucidate crater formation processes on them.
 * Measure the density and mass distribution of dust particles within the coma using the Dust Flux Monitor Instrument.
 * Analyze the composition of dust particles within the coma using the Comet and Interstellar Dust Analyzer instrument.

Encounter with Tempel 1
At 04:39:10 UTC on 15 February 2011, Stardust-NExT encountered Tempel 1 from a distance of 181 km. An estimated 72 images were acquired during the encounter. These showed changes in the terrain and revealed portions of the comet never seen by Deep Impact. The impact site from Deep Impact was also observed, though it was barely visible due to material settling back into the crater.

End of extended mission
On 24 March 2011 at approximately 23:00 UTC, Stardust conducted a burn to consume its remaining fuel. The spacecraft had little fuel left and scientists hoped the data collected would help in the development of a more accurate system for estimating fuel levels on spacecraft. After the data had been collected, no further antenna aiming was possible and the transmitter was switched off. The spacecraft sent an acknowledgement from approximately 312 e6km away in space.

Sample return

On 15 January 2006, at 05:57 UTC, the Sample Return Capsule successfully separated from Stardust. The SRC re-entered the Earth's atmosphere at 09:57 UTC, with a velocity of 46440 km/h, the fastest reentry speed into Earth's atmosphere ever achieved by a human-made object. The capsule followed a drastic reentry profile, going from a velocity of Mach 36 to subsonic speed within 110 seconds. Peak deceleration was 34 g, encountered 40 seconds into the reentry at an altitude of 55 km over Spring Creek, Nevada. The phenolic-impregnated carbon ablator (PICA) heat shield, produced by Fiber Materials Inc., reached a temperature of more than 2,900 °C during this steep reentry. The capsule then parachuted to the ground, finally landing at 10:12 UTC at the Utah Test and Training Range, near the U.S. Army Dugway Proving Ground. The capsule was then transported by military aircraft from Utah to Ellington Air Force Base in Houston, Texas, then transferred by road in an unannounced convoy to the Planetary Materials Curatorial facility at Johnson Space Center in Houston to begin analysis.

Sample processing
The sample container was taken to a clean room with a cleanliness factor 100 times that of a hospital operating room to ensure the interstellar and comet dust was not contaminated. Preliminary estimations suggested at least a million microscopic specks of dust were embedded in the aerogel collector. Ten particles were found to be at least 100 micrometers (0.1 mm) and the largest approximately 1,000 micrometers (1 mm). An estimated 45 interstellar dust impacts were also found on the sample collector, which resided on the back side of the cometary dust collector. Dust grains are being observed and analyzed by a volunteer team through the citizen science project, Stardust@Home.

The combined mass of the harvested sample was approximately 1 mg.

In December 2006, seven papers were published in the scientific journal Science, discussing initial details of the sample analysis. Among the findings are: a wide range of organic compounds, including two that contain biologically usable nitrogen; indigenous aliphatic hydrocarbons with longer chain lengths than those observed in the diffuse interstellar medium; abundant amorphous silicates in addition to crystalline silicates such as olivine and pyroxene, proving consistency with the mixing of Solar System and interstellar matter, previously deduced spectroscopically from ground observations; hydrous silicates and carbonate minerals were found to be absent, suggesting a lack of aqueous processing of the cometary dust; limited pure carbon (CHON) was also found in the samples returned; methylamine and ethylamine was found in the aerogel but was not associated with specific particles.

In 2010, Dr. Andrew Westphal announced that Stardust@home volunteer Bruce Hudson found a track (labeled "I1043,1,30") among the many images of the aerogel that may contain an interstellar dust grain. The program allows for any volunteer discoveries to be recognized and named by the volunteer. Hudson named his discovery "Orion".

In April 2011, scientists from the University of Arizona discovered evidence for the presence of liquid water in Comet Wild 2. They have found iron and copper sulfide minerals that must have formed in the presence of water. The discovery shatters the existing paradigm that comets never get warm enough to melt their icy bulk. In the spring of 2014, the recovery of particles of interstellar dust from the Discovery program's Stardust mission was announced.

The Stardust samples are currently available for everyone to identify after completing the training at Berkeley webpage.

Spacecraft location
The return capsule is currently located at the National Air and Space Museum in Washington, D.C. It began exhibition there on 1 October 2008, the 50th anniversary of the establishment of NASA. The return capsule is displayed in sample collection mode, alongside a sample of the aerogel used to collect samples.

Results
The comet samples show that the outer regions of the early Solar System were not isolated and were not a refuge where interstellar materials could commonly survive. The data suggest that high-temperature inner Solar System material formed and was subsequently transferred to the Kuiper belt.

In 2009 it was announced by NASA that scientists had identified one of the fundamental chemical building blocks of life in a comet for the first time: glycine, an amino acid, was detected in the material ejected from Comet Wild 2 in 2004 and captured by the Stardust probe. Glycine has been detected in meteorites before and there are also observations in interstellar gas clouds, but the Stardust find is described as a first in cometary material. Isotope analysis indicates that the Late Heavy Bombardment included cometary impacts after the Earth coalesced but before life evolved. Carl Pilcher, who leads NASA's Astrobiology Institute commented that "The discovery of glycine in a comet supports the idea that the fundamental building blocks of life are prevalent in space, and strengthens the argument that life in the universe may be common rather than rare."
 * Glycine

title: Stardust (spacecraft)


text:
White-backed vulture

The white-backed vulture (Gyps africanus) is an Old World vulture in the family Accipitridae, which also includes eagles, kites, buzzards and hawks. It is the most common vulture species in the continent of Africa.

Description
The white-backed vulture is a typical vulture, with only down feathers on the head and neck, very broad wings and short tail feathers. It has a white neck ruff. The adult's whitish back contrasts with the otherwise dark plumage. Juveniles are largely dark. This is a medium-sized vulture; its body mass is 4.2 to(-), it is 78 to 98 cm long and has a 1.96 to 2.25 m wingspan.

Distribution and habitat
The white-backed vulture occurs from Senegal, Gambia and Mali in the west, throughout the Sahel region to Ethiopia and Somalia in the east, through East Africa into Mozambique, Zimbabwe, Botswana, Namibia and South Africa in the south. It is the most widespread and common vulture in Africa with an estimated range of 24300000 km2, but has undergone rapid population declines in recent years.

Conservation
The white-backed vulture, like many African vultures, has suffered a rapid decline. When it was first assessed in 1988 it was classified as a Least concern species owing to a large range and population. It was reassessed from a Least Concern to Near Threatened species in the 2007 IUCN Red List after the beginnings of a major decline were noticed. In 2012, more information was available about population trends, and the estimates suggested that within the next three generations the white-backed vulture would decrease by 50%. Consequently it was added to the list of Endangered species. In October 2015, it was further uplisted to Critically Endangered because the decline had reach a magnitude that puts the vulture at an extreme risk of extinction.

The population size of the white-backed vulture has been decreasing significantly within the past few decades. In 1992, the population was estimated at 270,000. Over the past two decades, its population has noticeably decreased. BirdLife international estimated that over the past 40 years, the population of the white-backed vulture has decreased annually by a mean of 4.1%, culminating to an overall decline that lies between 63 and 89%, and such harrowing declines have also been recorded in the populations of its other African relatives. A recent study found that white-backed vultures have a high survival rate. Individual adults have the highest survival rate, while 2 year old birds have the lowest survival rate. Across all ages, the survival rate is estimated to be 90.7%. This means that the deaths of adult vultures will lead to rapid population declines. The loss of adults will cause less reproduction and with younger birds less likely to survive, the population will drop drastically. A major cause of population decrease is the loss of habitat and anthropogenic disturbance. Fires have also caused the destruction of trees used for nesting habitat. Humans also have a large impact. Power lines have caused many vultures to be electrocuted. In Kenya especially, humans are using a toxic pesticide called Furadan, which has led to many vulture deaths. Vultures are also being poisoned by humans, although not intentionally. In order to kill hyenas, lions, and other predators, herders add poisons into their livestock. Vultures ingest the poison upon eating a deceased animal's carcass. This poisoning generally occurs outside of protected areas but is a leading factor in the population's decline. Habitats are also being disturbed by human land management and direct nesting persecution patterns.

More recent studies have indicated a new plausible factor in the current declination of the vultures. Researches have seen that there has been a rise in toxicity in the liver, kidneys, pectoral region, and internal organs. This toxicity is caused by higher levels of lead, cadmium, zinc, and copper. Although most of these metals level out as either non harmful or normal levels, the lead concentrate in the liver of the vultures (8.56 μg/g wet weight) and in the kidneys (9.31 μg/g wet weight) is higher than the average levels.

Studies have also been performed on the white-backed vulture and some species of Asian vultures within the Gyps clade to see the effect of veterinary diclofenac. Regardless of whether the vultures were given an oral or intravenous dose of the substance, the effects was nearly identical and the diclofenac eventually poisoned the subjects. This chemical is one of the greatest contaminants for the general vulture population because of its presence in livestock: easy food for the vultures.

Another study shows that there are heightened levels of polycyclic aromatic hydrocarbons (HPA's), which is not as likely a product in the endangerment resultant, but still concerning. HPA's, also known as polyaromatic hydrocarbons, are formations of hydrogen atoms surrounding rings of carbon. As common as these compounds are—found in foods, engines/incinerators, fires, combustion—there are many forms, and some carcinogenic. Although there is no direct correlation of the high levels of HPA's in the vultures, there is still a plausibility that it can result in a negative outcome for the species.

Another reason for the decline in the number of white-backed vultures is the decrease in the number of their nesting sites, which they construct in trees in savannah areas and which are roughly 1 meter in diameter. There is an inverse relationship between the amount of human activity (farming, ranching, etc.) and the amount of vulture nesting activity in said area, so as the amount of human activity in Africa expands, the number of nesting sites available decreases, putting the vultures at jeopardy.

On the 20th of June 2019, the corpses of 468 white-backed vultures, 17 white-headed vultures, 28 hooded vultures, 14 lappet-faced vultures and 10 cape vultures, altogether 537 vultures, besides 2 tawny eagles, were found in northern Botswana. It is suspected that they died after eating the corpses of 3 elephants that were poisoned by poachers, possibly to avoid detection by the birds, which help rangers to track poaching activity by circling above where there are dead animals. Most of them were new parents, leaving their young orphaned and "ill-equipped" for survival. Vultures are slow breeders, and losing over 400 on a week is a devastating blow for the species.

Diet and feeding behaviour
White-backed vultures are obligate scavengers with a high level of specialization on carrion. Their primary food sources are the carcasses of large, grazing animals found the wooded savannahs where it lives. This includes warthogs, zebras, gazelles, ostriches and even livestock. Their beaks are medium-sized not adapted for tearing through tough skin, so they are limited to eating soft tissues, such as the viscera, using a pulling feeding tactic.

White-backed vultures circle through the sky in search of freshly dead animals, often following other scavenger birds and mammalian carnivores to find it. Gyps vultures are considered social vultures which rely heavily on conspecifics to provide information about the position of food and carcasses. Once a carcass is found, they will begin wheeling in the sky, signalling their discovery to other vultures. White-backed vultures feed in groups and are often one of the first vulture species to arrive at a carcass. This leads to this species having a high dominance at carcasses in comparison to other vulture species such as white-headed, hooded, and Egyptian vultures.

After feeding, white-backed vultures often rest with their wings spread and their backs facing the sun, as they have gorged themselves so much they can no longer fly.

Breeding
White-backed vultures nest in trees. They typically choose tall trees along riparian habitats and show strong a preference for Acacia species. The nests are large, around 1m in diameter, and are made of large sticks and lined with leaves and grasses.

A study which monitored 32 African white-backed vulture nests in the Masai Mara National Reserve during the period 2003 to 2007 showed that the mean nesting success was 59%. Another long-term study conducted in Linyanti, Botswana found that there were rapid declines in nesting numbers during a 10 year period. In 2007, there were 73 breeding pairs nesting in the area with a minimum density of 14.9 nests per 100 square kilometers. By 2017, this declined to 22 breeding pairs nesting and 4.49 nests per 100 square kilometers. In addition to a decrease in the number of active nests in the area, breeding success declined from 62% in 2006 to 37% in 2017.

White-backed vultures face threats from habitat degradation and poaching; as such they have been shown to avoid anthropogenically-disturbed areas when selecting nest sites and protection status is also a strong determinant of site selection.

White-backed vultures have a long breeding cycle. The incubation period is around 8 weeks and the nestling period is about 4–5 months.

Ecology
The tick Argas theilerae (also known as Theiler's African White-backed vulture argasid) is a parasite of the White-backed vulture.

title: White-backed vulture


text:
81P/Wild

Comet 81P/Wild, also known as Wild 2 (pronounced "vilt two"), is a comet named after Swiss astronomer Paul Wild, who discovered it on January 6, 1978, using a 40-cm Schmidt telescope at Zimmerwald, Switzerland.

For most of its 4.5 billion-year lifetime, Wild 2 probably had a more distant and circular orbit. In September 1974, it passed within one million kilometers of the planet Jupiter, the strong gravitational pull of which perturbed the comet's orbit and brought it into the inner Solar System. Its orbital period changed from 43 years to about 6 years, and its perihelion is now about 1.59 astronomical units (AU).

Nucleus parameters

 * Dimensions: 5.5x4.0x3.3 km
 * Density: 0.6 g/cm3
 * Mass: 2.3 x 1013 kg (5.1 x 1013 lb)

Exploration

NASA's Stardust Mission launched a spacecraft, named Stardust, on February 7, 1999. It flew by Wild 2 on January 2, 2004, and collected particle samples from the comet's coma, which were returned to Earth along with interstellar dust it collected during the journey. Seventy-two close-up shots were taken of Wild 2 by Stardust. They revealed a surface riddled with flat-bottomed depressions, with sheer walls and other features that range from very small to up to 2 kilometres across. These features are believed to be caused by impact craters or gas vents. During Stardust's flyby, at least 10 gas vents were active. The comet itself has a diameter of 5 kilometres.

Stardust's "sample return canister" was reported to be in excellent condition when it landed in Utah, on January 15, 2006. A NASA team analyzed the particle capture cells and removed individual grains of comet and interstellar dust, then sent them to about 150 scientists around the globe. NASA is collaborating with The Planetary Society who will run a project called "Stardust@Home", using volunteers to help locate particles on the Stardust Interstellar Dust Collector (SIDC).

As of 2006, the composition of the dust has contained a wide range of organic compounds, including two that contain biologically usable nitrogen. Indigenous aliphatic hydrocarbons were found with longer chain lengths than those observed in the diffuse interstellar medium. No hydrous silicates or carbonate minerals were detected, which suggests a lack of aqueous processing of Wild 2 dust. Very few pure carbon (CHON) particles were found in the samples returned. A substantial amount of crystalline silicates such as olivine, anorthite and diopside were found, materials only formed at high temperature. This is consistent with previous observations of crystalline silicates both in cometary tails and in circumstellar disks at large distances from the star. Possible explanations for this high temperature material at large distances from Sun were summarised before the Stardust sample return mission by van Boekel et al.:

 * "Both in the Solar System and in circumstellar disks crystalline silicates are found at large distances from the star. The origin of these silicates is a matter of debate. Although in the hot inner-disk regions crystalline silicates can be produced by means of gas-phase condensation or thermal annealing, the typical grain temperatures in the outer-disk (2–20 au) regions are far below the glass temperature of silicates of approx 1,000 K. The crystals in these regions may have been transported outward through the disk or in an outward-flowing wind. An alternative source of crystalline silicates in the outer disk regions is in situ annealing, for example by shocks or lightning. A third way to produce crystalline silicates is the collisional destruction of large parent bodies in which secondary processing has taken place. We can use the mineralogy of the dust to derive information about the nature of the primary and/or secondary processes the small-grain population has undergone."

Results from a study reported in the September 19, 2008 issue of the journal Science has revealed an oxygen isotope signature in the dust that suggests an unexpected mingling of rocky material between the center and edges of the Solar System. Despite the comet's birth in the icy reaches of outer space beyond Pluto, tiny crystals collected from its halo appear to have been forged in the hotter interior, much closer to the Sun.

In April 2011, scientists from the University of Arizona discovered evidence of the presence of liquid water. They found iron and copper sulfide minerals that must have formed in the presence of water. The discovery is in conflict with the existing paradigm that comets never get warm enough to melt their icy bulk. Either collisions or radiogenic heating might have provided the necessary energy source.

On August 14, 2014, scientists announced the collection of possible interstellar dust particles from the Stardust spacecraft since returning to Earth in 2006.

title: 81P/Wild


text:
Woodstock II

Woodstock II may refer to:

 * Woodstock Two, the second live album from the 1969 festival.
 * Woodstock '89, the lesser-known, though technically correct, Woodstock II. It was spontaneous commemoration of the 20th anniversary of Woodstock, having had fewer attendees and lesser-known acts than Woodstock '94.
 * Woodstock '94, unofficially named Woodstock II, it was a commemoration of the 25th anniversary of the Woodstock festival.

title: Woodstock II