Scientists have told, what purpose presleduet UFOs arriving to Earth.
U.S. scientists announced why extraterrestrial entities are visiting Earth.
Experts believe in the presence of a threat to the human race from aliens from space, which from time to time only studied humans.
In addition, scientists agree on the hypothesis that extraterrestrial entities are studying the planet and our level of progress. It is also argued that in peacetime the alien researchers visit us as often as during protracted military conflicts. Some experts converge on the idea that the reason for the visits is that the Land is the only inhabited planet in the Universe.
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