The story of the black knight UFO begins way back in 1899 with a signal which was picked up by Nikola Tesla, coming from space.
This signal was picked up again on various occasions in the 1920's by radio enthusiasts and there were many sightings by astronomers who watched and studied it. It made newspapers in the 1950's and 1960's.
Pictures were taken in the 1960's. In the 1970's the signal was decoded and was a diagram of epsilon Bootes star system. This is an amazing story,Watch this video