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15 Weird Mysteries Science Still Hasn’t Explained

Where are all the aliens?

Where are all the aliens?
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The universe is massive and contains countless planets, and yet, we only know of one single planet that has life living on it: Earth. Mathematicians and scientists both agree that the chances of alien life are fairly high, even to the point where people pointed out the paradox of us being so “alone” in the universe. (Think Fermi’s Paradox!)

Knowing how high the chances are of other species being out there, it only makes sense to expect them to do a little traveling around the universe. However, there’s no solid scientific evidence that shows them visiting us. Why? Where are they? Why haven’t they tried to communicate with us?


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