A Mysteriously Appearing Floater
It’s possible that there are many unknown things floating about the Earth. There are several satellites orbiting the Earth. It’s hard to ignore the mystery surrounding one specific satellite, however: Black Knight. No one has ever claimed ownership of a 13,000-year-old satellite, according to experts.

For the first time, it is believed that this satellite has tried to communicate with us. So some people think “Black Knight” is a spacecraft from an extraterrestrial civilization, circling our planet for some unknown cause.