In outer space, we have repeatedly noticed an incomprehensible object hovering in Earth's orbit. Later, the UFO was nicknamed the "Black Prince", but the nature of its origin is still unknown. For the first time, mankind got acquainted with the photograph of the "Black Prince" more than two decades ago, when it was captured by representatives of NASA, but people observed certain objects in extraterrestrial space back in the 50s. According to some enthusiasts, the device hovering in the air resembles a ship of some "space neighbors", while others suggested that this is an ordinary satellite that monitors events on Earth.
Ultimately, the UFO was named "Black Prince" with a hitherto unknown origin. Ufologists are sure that in fact it is an alien probe designed to establish contact with earthlings. From a scientific point of view, "Black Prince" is a substance that astronauts use for spacewalk. According to another hypothesis, the object is a fragment of a separate apparatus that monitored the situation in the Soviet Union more than five decades ago. The operation went well, but at one point there was a hitch and the capsule with important data was never able to reach the planet's surface.