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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 concept of extraterrestrial life, and 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.
So far, there is no observation of extraterrestrial life, including intelligent extraterrestrial life. [10] The Kardashev scale is a speculative method of measuring a civilization's level of technological advancement, based on the amount of energy a civilization is able to utilize. [11]
The Drake equation results in a summary of the factors affecting the likelihood that we might detect radio-communication from intelligent extraterrestrial life. [ 2 ] [ 6 ] [ 17 ] The last three parameters, f i , f c , and L , are not known and are very difficult to estimate, with values ranging over many orders of magnitude (see § Criticism ).
Alien life could be found in a tiny grain of ice, researchers have said. The discovery suggests that upcoming telescopes might be able to spot extraterrestrial life relatively soon.
Later, the dwarf-like alien scientist Dr. Z'ong reveals to Mortimer that commander Basam Damdu, absolute dictator of the Yellow Empire from The Secret of the Swordfish, along with his army, including Zong himself, are humans from 8061, a time when the earth is deserted due to a long nuclear war in the 21st century and humans are an endangered ...
The thin band between perpetual night and day, known as a termination zone, could have just the right ingredients for life to flourish. Skip to main content. Sign in. Mail. 24/7 Help. For premium ...
The possibility of life-forms being based on "alternative" biochemistries is the topic of an ongoing scientific discussion, informed by what is known about extraterrestrial environments and about the chemical behaviour of various elements and compounds. It is of interest in synthetic biology and is also a common subject in science fiction.
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