The Black Knight satellite is claimed by conspiracy theorists to be an object approximately 13,000 years old of extraterrestrial origin orbiting Earth in near-polar orbit. Critics and mainstream academics have called it a conspiracy theory and "one rambling and inconsistent dollop of myth"
The story has its origins in 1954 when newspapers including the St. Louis Post Dispatch and the San Francisco Examiner ran stories attributed to retired naval aviation major and UFO researcher Donald Keyhoe saying that the US Air Force had reported that two satellites orbiting Earth had been detected. At this time no one had the technology to launch a satellite.
In February 1960 there was a further claim by TIME that the US Navy had detected a dark object thought to be a Soviet spy satellite in an orbit inclined at 79° from the equator with an orbital period of 104.5 minutes. Its orbit was also highly eccentric with an apogee of 1,728 km (1,074 mi) and a perigee of only 216 km (134 mi). At the time the Navy was tracking a fragment of casing from the Discoverer VIII satellite launch which has the same orbit, and it is believed to be a derelict US satellite that had gone astray.
An object photographed in 1998 during the STS-88 mission has been widely claimed to be this "alien artifact". According to Martina Redpath of Armagh Planetarium and James Oberg, it is more probable that the photographs are of a thermal blanket that was confirmed as lost during an EVA. Redpath wrote:Black Knight is a jumble of completely unrelated stories; reports of unusual science observations, authors promoting fringe ideas, classified spy satellites and people over-interpreting photos. These ingredients have chopped up, stirred together and stewed on the internet to one rambling and inconsistent dollop of myth.
History of Black Knight Satellite
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