Despite the fact that the Black Knight Satellite is often cited as evidence of the Ancient Astronaut Alien Theory with some suggesting that the Black Knight Satellite is an Ancient Astronaut Alien Satellite that has been orbiting the Earth and observing Earth for 13 000 years, the truth about the Black Knight Satellite is that it does not provide any evidence for the Ancient Astronaut Alien Theory.
Reports of the Black Knight Satellite can be traced back at least 100 years, starting in 1899 with Nikola Tesla detecting a repeating radio signal that he believed originated from Mars all the way up to 1998 when the Space Shuttle Endeavour took photographs of an unusual object which have been used as the primary photographic evidence in support of the Black Knight Satellite hypothesis.
However, the truth is that none of the reports about the Black Knight Satellite since 1899 up to the photographs taken in 1998 support the idea that the Black Knight Satellite is evidence of an Extra-Terrestrial object in Space.
Tesla himself in 1923 wrote a letter in which he concluded that in his view the signals he had detected originated from Mars and not a Satellite orbiting the Earth.
Furthermore, today Astrophysicists believe that what Tesla picked up were likely pulsars, a neutron star that produces electromagnetic radiation.
In 1954 newspapers also carried stories citing reports that the U.S. Air Force had reported that two satellites orbiting earth had been detected but neither the US nor the Soviet Union had the ability to place an object into Space orbit at the time.
In February 1960, TIME Magazine also reported that the U.S. Navy had detected a Soviet spy satellite in orbit. However, a later article confirmed that the object was not a Soviet Spy Satellite but the debris of Air Force Discoverer VIII.
Scottish author Duncan Lunan also contributed to the Black Knight Satellite controversy when he analyzed long delayed radio echoes, and concluded that their source may be a 13,000 year old Extra-Terrestrial Probe orbiting around the Earth’s Moon which may have originated from a planet located in the solar system of star Epsilon Boötis.
However, Lunan subsequently admitted that the theory was not based on Scientific evidence and retracted his assertions.
Nevertheless, the object shown in the 1998 photograph does exist but it is actually Space debris from a Thermal blanket that was lost during a  Spacewalk by Astronauts during the construction of the International Space Station.
So despite the numerous reports and theories, the truth about the Black Knight Satellite is that the Black Knight object is not an Alien Artifact that has been orbiting the Earth for 13 000 years.
