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nouna form of life assumed to exist outside the Earth or its atmosphere
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"is there extraterrestrial life?"originating or located or occurring outside Earth or its atmosphere
Definition that contains extraterrestrial
- comet (astronomy) a relatively small extraterrestrial body consisting of a frozen mass that travels around the sun in a highly elliptical orbit
- meteor (astronomy) any of the small solid extraterrestrial bodies that hits the earth's atmosphere
- ufo an (apparently) flying object whose nature is unknown; especially those considered to have extraterrestrial origins
- exobiology the branch of biology concerned with the effects of outer space on living organisms and the search for extraterrestrial life
- meteoroid (astronomy) any of the small solid extraterrestrial bodies that hits the earth's atmosphere
- astrobiology the branch of biology concerned with the effects of outer space on living organisms and the search for extraterrestrial life
- cosmic ray highly penetrating ionizing radiation of extraterrestrial origin; consisting chiefly of protons and alpha particles; collision with atmospheric particles results in rays and particles of many kinds
- space biology the branch of biology concerned with the effects of outer space on living organisms and the search for extraterrestrial life
- flying saucer an (apparently) flying object whose nature is unknown; especially those considered to have extraterrestrial origins
- radio reflector astronomical telescope that picks up electromagnetic radiations in the radio-frequency range from extraterrestrial sources