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The authors also argue that due to the immense size of the universe, even if another habitable planet like Earth does exist elsewhere, meaning that the Earth is not the only planet in the universe with complex life, such planets would still only appear in relatively small numbers compared to planets that are habitable only to bacteria. Such ...
Xenoarchaeology, a branch of xenology dealing with extraterrestrial cultures, is a hypothetical form of archaeology that exists mainly in works of science fiction. The field is concerned with the study of the material remains to reconstruct and interpret past life-ways of alien civilizations.
It contains Barlowe's visualizations of different extraterrestrial life forms from various works of science fiction, with information on their planetary location or range, biology, and behaviors, in the style of a real field guide for animals. It was nominated for an American Book Award and for the 1980 Hugo Award for Best Related Work.
The book describes the 2017 detection of ʻOumuamua, the first known interstellar object to pass through the Solar System. [8] [9] Loeb, an astronomer at Harvard University, speculates that the object might be an extraterrestrial artifact, [10] a suggestion considered unlikely by the scientific community collectively.
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]
Archaeology, Anthropology, and Interstellar Communication is subdivided into four sections, each with several essays. "Historical Perspectives on SETI" is a historiography of NASA's SETI (search for extraterrestrial intelligence) program, which ran for much of the late twentieth century before being dissolved due to lack of funding, and its humanities and social sciences representation.
The search for extraterrestrial intelligence (SETI) is a collective term for scientific searches for intelligent extraterrestrial life. Methods include monitoring electromagnetic radiation for signs of transmissions from civilizations on other planets, [ 1 ] [ 2 ] [ 3 ] optical observation, and the search for physical artifacts.
Astrobotany concerns both the study of extraterrestrial vegetation discovery, as well as research into the growth of terrestrial vegetation in outer space by humans. [1] It has been a subject of study that plants may be grown in outer space typically in a weightless but pressurized controlled environment in specific space gardens. [2]