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Extraterrestrial life

Alien contact refers to the hypothetical interaction between humans and extraterrestrial intelligence. This concept encompasses various forms of communication, including radio signals, physical encounters, or any other means by which humans might establish contact with intelligent life from beyond Earth. The term is often used in the context of the search for extraterrestrial intelligence (SETI), a collective term for scientific searches for intelligent extraterrestrial life, for example by monitoring radio waves for signs of transmissions from civilizations on other planets. In Hebrew, "alien contact" can be translated as צור קשר עם חייזרים (tzur keshar im khayzarim). In other languages, it may be referred to as contacto alienígena in Spanish, contact extraterrestre in French, and Kontakt mit Außerirdischen in German. The idea of alien contact has been a popular theme in science fiction literature, films, and television shows, often exploring the potential consequences and implications of such an event. Scientists and researchers have also seriously considered the possibility, with projects like SETI and the Breakthrough Listen initiative dedicated to detecting signals from extraterrestrial civilizations. The scientific community remains divided on the likelihood and nature of alien contact, with some advocating for active measures to initiate communication (Active SETI or METI) and others cautioning against the potential risks of such actions.

Wikipedia Information
Extraterrestrial life
Life that does not originate on Earth
Extraterrestrial life, or alien life, is life that originates from another world rather than on Earth. No extraterrestrial life has yet been scientifically or conclusively detected. Such life might range from simple forms such as prokaryotes to intelligent beings, possibly bringing forth civilizations that might be far more, or far less, advanced than humans. The Drake equation speculates about the existence of sapient life elsewhere in the universe. The science of extraterrestrial life is known as astrobiology.
Last modified: 2025-11-19T09:06:39ZView full article on Wikipedia