give brief summary of black knight satallite
Answers
.According to some UFO conspiracists, the Black Knight is an artificial satellite of extraterrestrial origin which has orbited Earth for approximately 13,000 years; the "satellite" story is most likely a conflation of several disconnected stories about various objects and their interpretations, all of them well documented independently and none using the term "Black Knight" upon their first publication. According to senior education support officer Martina Redpath of Armagh Planetarium in Northern Ireland:
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 been chopped up, stirred together and stewed on the internet to one rambling and inconsistent dollop of myth.
The origin of the Black Knight legend is often "retrospectively dated" back to natural extraterrestrial repeating sources supposedly heard during the 1899 radio experiments of Nikola Tesla and long delayed echoes first heard by amateur radio operator Jørgen Hals in Oslo, Norway, in 1928. Brian Dunning of the Skeptoid podcast attributes Tesla's 1899 radio signals to pulsars, which were not identified until 1968.
In 1954, UFO researcher Donald Keyhoe told newspapers that the United States Air Force had reported that two satellites orbiting Earth had been detected. At that time, no country had the technology to launch a satellite. Skeptics have noted that Keyhoe had been promoting a UFO book at the time, and the news stories were likely written "tongue-in-cheek" and not intended to be taken seriously.
A British rocket called the Black Knight rocketwas used in conjunction with the Blue Streak missile program between 1958 and 1965, to test re-entry vehicles. A "Black Knight satellite launcher" project announced in 1964 was considered a priority by the Ministry of Aviation. The program never put anything into orbit, and it is unrelated to the Black Knight satellite legend.
In February 1960, TIME reported that the U.S. Navy had detected a dark object thought to be a Soviet spy satellite in orbit. A follow-up article confirmed that the object was "the remains of an Air Force Discoverer VIIIsatellite that had gone astray."
In 1963, astronaut Gordon Coopersupposedly reported a UFO sighting during his 15th orbit in Mercury 9 that was confirmed by tracking stations, but there is no evidence that this happened. Neither NASA's mission transcripts nor Cooper's personal copies show any such report being made during the orbit.