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This is an accepted version of this page This is the latest accepted revision, reviewed on 8 February 2025. Discrepancy of the lack of evidence for alien life despite its apparent likelihood This article is about the absence of clear evidence of extraterrestrial life. For a type of estimation problem, see Fermi problem. Enrico Fermi (Los Alamos 1945) The Fermi paradox is the discrepancy ...
Science fiction has communicated scientific ideas, imagined a range of possibilities, and influenced public interest in and perspectives on extraterrestrial life. One shared space is the debate over the wisdom of attempting communication with extraterrestrial intelligence.
Planetary habitability in the Solar System is the study that searches the possible existence of past or present extraterrestrial life in those celestial bodies. As exoplanets are too far away and can only be studied by indirect means, the celestial bodies in the Solar System allow for a much more detailed study: direct telescope observation, space probes, rovers and even human spaceflight.
We might already have gathered the data that could tell us whether aliens exist on Mars
The existence of extraterrestrial life, life outside of Earth, is an ongoing scientific search as well as societal debate. Astrobiology to planetary geology are some of the disciplines interested in finding life elsewhere in space. Astrosociology intersects these by exploring the social dimensions of finding extraterrestrial life – exploring ...
The Ocean Worlds Exploration Program (OWEP) is a NASA program [1] to explore ocean worlds in the outer Solar System that could possess subsurface oceans to assess their habitability and to seek biosignatures of simple extraterrestrial life. Prime targets include moons that harbor hidden oceans beneath a shell of ice: Europa, Enceladus, and ...
Although the report discusses the need for research on many policy issues related to space exploration, it is most often cited for passages from its brief section on the implications of a discovery of extraterrestrial life. (See Section #Use in discussions about possible cover-ups)
A culture of extraterrestriality is the cultural imagination and description of otherworldlyness, alienness or outright outer space, characterizing the other through extraterrestrial space, [1] [2] beyond mere extraterritoriality or periphery, being the space that is imagined or described as extraterrestrial, or simply any space outside a described land.