The UnXplained: Exoplanet Discovery Suggests Extraterrestrial Life (Season 4)
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Lessons from My Wife in Finding Alien Life | Douglas Vakoch | TEDxKingstonUponThames
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Life (2017) - Extraterrestrial Life Scene (1/10) | Movieclips
5:22
UFO enthusiast exposes most convincing evidence of extraterrestrial life | Today Show Australia
Extraterrestrial life, also called alien life, 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.