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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.
The scientific search for extraterrestrial life is being carried out both directly and indirectly. As of September 2017 [update] , 3,667 exoplanets in 2,747 systems have been identified , and other planets and moons in the Solar System hold the potential for hosting primitive life such as microorganisms .
The following outline is provided as an overview of and topical guide to extraterrestrial life: Extraterrestrial life – is any type of lifeform, from prokaryotes to intelligent beings, that is neither native of Earth or transplanted from it. So far, no extraterrestrial life has ever been found. [1]
NASA hasn't funded that goal since 1992, when it deployed the High Resolution Microwave Survey to search for extraterrestrial transmissions. Congress killed its budget less than a year later .
“The search for extraterrestrial life remains one of the most tantalizing endeavors in modern science,” said lead author Jim Cleaves of the Earth and Planets Laboratory, Carnegie Institution ...
Scientists employ many methods in the search for alien life. One approach is using both terrestrial and space-based advanced telescopes for some good, old-fashioned stargazing.
The institute's SETI researchers use both radio and optical telescope systems to search for deliberate signals from technologically advanced extraterrestrial civilizations. The SETI Institute employs over 100 researchers that study all aspects of the search for life, its origins, the environment in which life develops, and its ultimate fate.
The Breakthrough Listen project will now be able to search more than a million stars within two years as it searches for signs of intelligent extraterrestrial life.