Visual Encyclopedia

Extraterrestrial life

Extraterrestrial life, also called alien life (or, if it is a sentient or relatively complex individual, an "extraterrestrial" or "alien"), is life that occurs outside of Earth and that probably did not originate from Earth. These hypothetical life forms may range from simple prokaryotes to beings with civilizations far more advanced than humanity. The Drake equation speculates about the existence of intelligent life elsewhere in the universe. The science of extraterrestrial life in all its forms is known as exobiology.

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Vsauce, Micheal explains if we as a species, are ready for alien contact, and how we would goabout dealing with such a historical event.

Contributed by Edwin Alegria

It is naive to think that we are only in this vast universe. It's even more naive to think that we are the only lifeforms in our galaxy. There are 6 billion people on Earth, 8 planets in our solar system, millions of solar systems in our galaxy, which is one of the billions and trillions of galaxies scattered throughout the universe.

Contributed by Madison DeBaker

I hope we find alien life soon.

Contributed by Conrado Mario Mota

Who knew who/what to model aliens after? Who came up with the prototype alien that is there when the page loads?

Contributed by Quil Paniqq

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