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n e = 1 to 5 (stars with planets will have between 1 and 5 planets capable of developing life) f l = 1 (100% of these planets will develop life) f i = 1 (100% of which will develop intelligent life) f c = 0.1 to 0.2 (10–20% of which will be able to communicate) L = somewhere between 1000 and 100,000,000 years
Schematic diagram of the orbits of the fictional planets Vulcan, Counter-Earth, and Phaëton in relation to the five innermost planets of the Solar System.. Fictional planets of the Solar System have been depicted since the 1700s—often but not always corresponding to hypothetical planets that have at one point or another been seriously proposed by real-world astronomers, though commonly ...
The concept of extraterrestrial life, particularly extraterrestrial intelligence, has had a major cultural impact, especially extraterrestrials in fiction. 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 ...
When looking for planets that might support life in our galaxy and beyond, astronomers are looking for conditions that are just right to create the “Goldilocks zone.”
Terraforming is a common concept in science fiction, ranging from television, movies and novels to video games. [83] A related concept from science fiction is xenoforming – a process in which aliens change the Earth or other planets to suit their own needs, already suggested in the classic The War of the Worlds (1898) of H.G. Wells. [84]
In the 1985 science fiction novel Contact, Carl Sagan explored in some depth how a message might be constructed to allow communication with an alien civilization, using prime numbers as a starting point, followed by various universal principles and facts of mathematics and science. Sagan also edited a nonfiction book on the subject. [18]
Life On Another Planet, also known as Signal from Space, is a science fiction graphic novel by Will Eisner dealing with the social and political consequences of a first contact with an extraterrestrial civilization. It was first serialized in The Spirit and later collected into a single volume.
Most extrasolar planets in fiction are similar to Earth—referred to in the Star Trek franchise as Class M planets—and serve only as settings for the narrative. [1] [2] One reason for this, writes Stephen L. Gillett [Wikidata] in The Greenwood Encyclopedia of Science Fiction and Fantasy, is to enable satire. [3]