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An extraterrestrial or alien is a lifeform that did not originate on Earth. The word extraterrestrial means "outside Earth". Extraterrestrials are a common theme in modern science-fiction , and also appeared in much earlier works such as the second-century parody True History [ 1 ] by Lucian of Samosata .
A popular subset of speculative evolution is the exploration of possible realistic extraterrestrial life and ecosystems. Speculative evolution writings focusing on extraterrestrial life, like the blog Furahan Biology, use realistic scientific principles to describe the biomechanics of hypothetical alien life. [28]
"The Derelict" – the name given to the abandoned alien spacecraft discovered by the crew of the deep space tug Nostromo in the film Alien (1979) [48] Darksyde – The Predacon transwarp ship in the Beast Wars television series. [49] The name was spelled with a y in the Beast Wars video game and in the DVD box set.
From the late 19th and early 20th centuries on, there was a visible distinction between the more "realistic", scientific fiction (which would later evolve into hard sf) [8]), whose authors, often scientists like Konstantin Tsiolkovsky and Max Valier, focused on the more plausible concept of interplanetary travel (to the Moon or Mars); and the ...
Contrarily, realistic fiction involves a story whose basic setting (time and location in the world) is, in fact, real and whose events could believably happen in the context of the real world. One realistic fiction sub-genre is historical fiction, centered around true major events and time periods in the past. [4]
A scene of a first contact between aliens and humans in Robert Sheckley's 1952 short story "Warrior Race". First contact is a common theme in science fiction about the first meeting between humans and extraterrestrial life, or of any sentient species' first encounter with another one, given they are from different planets or natural satellites.
Suspended animation in fiction refers to the temporary cessation of life processes experienced by fictional characters, followed by their subsequent revival. This process is commonly employed as a plot device in science fiction narratives.
Terraforming is well represented in contemporary literature, usually in the form of science fiction, as well as in popular culture. [1] [2] While many stories involving interstellar travel feature planets already suited to habitation by humans and supporting their own indigenous life, some authors prefer to address the unlikeliness of such a concept by instead detailing the means by which ...