astronomy) Extraterrestrial life, or alien life (colloquially, aliens), is life which does not originate from Earth. No extraterrestrial life has yet been...

outline is provided as an overview of and topical guide to extraterrestrial life: Extraterrestrial life – is any type of lifeform, from prokaryotes to intelligent...

Extraterrestrial intelligence (ETI) refers to hypothetical intelligent extraterrestrial life. No such life has ever been verifiably observed to exist....

up extraterrestrial, extra-, terrestrial, or extra in Wiktionary, the free dictionary. Extraterrestrial may refer to: Extraterrestrial life, life that...

An extraterrestrial or alien is a lifeform that did not originate on Earth. The word extraterrestrial means "outside Earth". Extraterrestrials are a common...

The search for extraterrestrial intelligence (SETI) is a collective term for scientific searches for intelligent extraterrestrial life, for example, monitoring...

locate intelligent life as opposed to analyzing the implications of contact with that life. The potential changes from extraterrestrial contact could vary...

The existence of extraterrestrial life is a scientific idea that has been debated for centuries. Initially, the question was purely speculative; in modern...

ISBN 0-521-56564-2, OCLC 28928183 Crowe, Michael J. (1999), The Extraterrestrial Life Debate, 1750–1900, Courier Dover Publications, pp. 241–246, ISBN 0-486-40675-X...

the first evidence of extraterrestrial life on Mars. When members of the crew conduct their research, the rapidly evolving life-form proves to be far...

probabilistic argument used to estimate the number of active, communicative extraterrestrial civilizations in the Milky Way Galaxy. The equation was formulated...

more complex structure. Life is only known to exist on Earth but extraterrestrial life is thought probable. Artificial life is being simulated and explored...

The communication with extraterrestrial intelligence (CETI) is a branch of the search for extraterrestrial intelligence (SETI) that focuses on composing...

Melissa Mathison. It tells the story of Elliott, a boy who befriends an extraterrestrial, dubbed E.T., who is left behind on Earth. Along with his friends and...

including psychology, information theory, the origin of life, and the possibility of extraterrestrial life. In 1863 Rudolf Clausius published his noted memoir...

evidence of advanced extraterrestrial life and the apparently high likelihood of its existence. As a 2015 article put it, "If life is so easy, someone...

Extraterrestrial (also known under the working title of The Visitors) is a 2014 Canadian science fiction horror film that was directed by Colin Minihan—one...

contact Earth. No transmissions and no firm evidence of intelligent extraterrestrial life have been detected or observed.: 2  This runs counter to the general...

in ufology and the paranormal. He has since spent time researching extraterrestrials, and is the creator and host of the web show Interview With E.D....

Venom: The Last Dance is an upcoming American superhero film featuring the Marvel Comics character Venom. The sequel to Venom (2018) and Venom: Let There...

Interstellar: The Search for Extraterrestrial Life and Our Future in the Stars (also known as Interstellar) is a popular science book written by American...

Extraterrestrial: The First Sign of Intelligent Life Beyond Earth (also known as Extraterrestrial) is a popular science book written by American theoretical...

Sonic the Hedgehog 3 is an upcoming action-adventure comedy film based on the video game series published by Sega. It is directed by Jeff Fowler and written...

of extraterrestrial life, and how humans should treat extraterrestrial non-intelligent life (like microbes) and extraterrestrial intelligent life (and...

extinct. Earth is the only celestial body known to harbor life forms. No form of extraterrestrial life has yet been discovered. Archaea – a domain of single-celled...

planetary biosignatures of past or present extraterrestrial life, and the study of the origin and early evolution of life on Earth. The field of astrobiology...

above in times of war Extraterrestrial life, life which does not originate from Earth Specifically, a lifeform with extraterrestrial intelligence For fictional...

the fifth kind' as human initiated contact and communication with extraterrestrial life. CSETI claims to have over 3,000 confirmed reports of UFO sightings...

sulfuric acid-rich extraterrestrial environments. Alternatively, the weak bonds in silicon compounds may help maintain a rapid pace of life at cryogenic temperatures...

have claimed that the story is evidence of a close encounter with extraterrestrial life. The best-known versions of the legend are found in four texts:...