Extraterrestrial

Extraterrestrial refers to anything originating outside of Earth or its atmosphere. The term is commonly used to describe life, phenomena, objects, or environments that exist in outer space or on other celestial bodies. In a broader sense, it encompasses anything that is not native to Earth. The concept is central to fields such as astronomy, astrobiology, and science fiction. In Hebrew, the term is translated as חוצני (khutzní). Other relevant translations include extraterrestre in Spanish, French, and Italian, außerirdisch in German, and внеземной (vnezemnoy) in Russian. Extraterrestrial life, often referred to as alien life, is a subject of significant scientific research and speculation, with ongoing efforts to detect microbial or intelligent life beyond Earth. The search for extraterrestrial intelligence (SETI) is a notable example of such endeavors.