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History 10 Overlooked People Who Accidentally Changed the World
Space 10 Fascinating Explanations for Cosmic Mysteries
History 10 Insane Covert Operations from WWII
Our World 10 Massive Landmarks Built to Bury Dark Historical Secrets
History 10 Jokes That Accidentally Triggered Real-World Crises
Technology 10 Massive Construction Projects That Nearly Bankrupted Nations
History 10 Devastating Wars During the So-Called “Cold” War
Movies and TV 10 Star Trek Alternatives To Help Fans Get Their Fix
Weird Stuff 10 Things People Weirdly Blamed for Natural Disasters
Creepy 10 Books That Were Allegedly Written by Ghosts
History 10 Overlooked People Who Accidentally Changed the World
Space 10 Fascinating Explanations for Cosmic Mysteries
Who's Behind Listverse?
Jamie Frater
Head Editor
Jamie founded Listverse due to an insatiable desire to share fascinating, obscure, and bizarre facts. He has been a guest speaker on numerous national radio and television stations and is a five time published author.
More About Us
History 10 Insane Covert Operations from WWII
Our World 10 Massive Landmarks Built to Bury Dark Historical Secrets
History 10 Jokes That Accidentally Triggered Real-World Crises
Technology 10 Massive Construction Projects That Nearly Bankrupted Nations
History 10 Devastating Wars During the So-Called “Cold” War
Movies and TV 10 Star Trek Alternatives To Help Fans Get Their Fix
Weird Stuff 10 Things People Weirdly Blamed for Natural Disasters
Video: 10 Reasons We Still Haven’t Found Aliens
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.
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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








