Black Knight Satellite
The theory that an unexplained object of extraterrestrial origin has been orbiting Earth for thousands of years, based on misinterpreted signals and photographs.
OVERVIEW
The Black Knight Satellite conspiracy theory claims that a 13,000-year-old alien satellite has been transmitting signals to Earth for millennia. Proponents cite Nikola Tesla's 1899 reception of strange radio signals, a 1954 newspaper article about 'unknown satellites,' and a 1998 NASA photograph showing what appears to be an anomalous object. However, each piece of evidence has a mundane explanation: Tesla likely detected pulsars or natural radio emissions, the 1954 story was speculation, and the 1998 photo is a thermal blanket that detached from an STS-88 spacewalk. Despite extensive debunking, the theory remains popular online.
KNOWN FACTS
Tesla recorded receiving rhythmic radio signals from an unknown source
A 1954 St. Louis Dispatch article mentioned 'unknown satellites' two years before Sputnik
NASA's STS-88 photograph shows a tether-like object against the darkness of space
Ham radio operators have reported unusual signals from orbital objects
CLAIMS
An artificial object has been in polar orbit around Earth for 13,000 years
Nikola Tesla detected its radio transmissions in 1899
NASA photographed the Black Knight during STS-88
The U.S. Air Force tracked the object in the 1950s
The object periodically transmits coded signals
EVIDENCE FOR
Tesla recorded receiving rhythmic radio signals from an unknown source
A 1954 St. Louis Dispatch article mentioned 'unknown satellites' two years before Sputnik
NASA's STS-88 photograph shows a tether-like object against the darkness of space
Ham radio operators have reported unusual signals from orbital objects
EVIDENCE AGAINST
NASA identified the STS-88 object as a thermal blanket lost during a spacewalk
A 13,000-year-old object in low Earth orbit would have decayed due to atmospheric drag
Tesla's signals were likely natural radio emissions from Jupiter or a pulsar
The 1954 article was speculative journalism, not official government information
No physical evidence of the satellite has ever been produced
OPEN QUESTIONS
No open questions recorded.
SOURCES
TIMELINE
Tesla detects repeating radio signals from space
Newspaper story claims two unknown satellites in orbit
NASA STS-88 photo misinterpreted as Black Knight
Theory spreads widely through internet