Black Knight Satellite: In 1954, the U.S. Air Force allegedly detected an unidentified object orbiting Earth years before the first man-made satellite existed. Rumors quickly formed around what became known as the Black Knight Satellite. Some analysts claim radio signals linked to the object date back 13,000 years, suggesting it may not be human in origin. NASA insists it’s nothing unusual… but photos from the ISS in 2016 reignited the mystery. Is the Black Knight watching us from above? Music:

Black Knight Satellite | Universe Inside You