It’s UFO Day! Here’s What We Know So Far | Mach | NBC News

It’s UFO day and we still don’t know much about UFOs and extraterrestrial life. From why aliens might be unable to take on space travel to how some life on Earth might have originated from outer space, this is what we know so far about alien life in the universe.
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It’s UFO Day! Here’s What We Know So Far | Mach | NBC News

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