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Video: 10 Reasons We Still Haven’t Found Aliens

by Listverse Writers
fact checked by AndrewHandley

The Fermi paradox, first introduced by physicist Enrico Fermi, asks the question, “Where is everybody?” Or, more specifically, “Where are all the aliens?”

When we factor in the size of the universe, the number of Earth-like planets, and a range of other variables, there should be tens of thousands or more extraterrestrial civilizations in the galaxy. And with the galaxy being around 10 billion years old, scientists say that intelligent worlds would have had plenty of time to contact one another. So if aliens should statistically exist, why haven’t we encountered any yet? Here are some possible reasons.

10 Reasons We Still Haven’t Found ALIENS – LISTVERSE

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Discover more extraterrestrial encounters on Listverse:

10 Government Officials Who Admitted The Existence Of Aliens
10 Bizarre Claims Of Alien/Human Hybrids
10 Creepy Stories Of Alleged Alien Encounters
Top 10 Ancient Aliens Mysteries

fact checked by AndrewHandley
Listverse Writers

Listverse is a place for explorers. Together we seek out the most fascinating and rare gems of human knowledge. Three awesome top 10 lists daily.

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