noun a hypothetical or fictional being from outer space
adjective relating to or characteristic of beings from outer space
In the field of astronomy, extraterrestrial refers to anything originating or occurring outside Earth, such as extraterrestrial life or extraterrestrial objects.
Within space exploration, the term extraterrestrial is used to describe any potential discoveries or encounters with life or objects beyond Earth.
In the genre of science fiction, extraterrestrial often pertains to beings or phenomena from outer space or other planets.
In astrobiology, the study of life in the universe, the term extraterrestrial is commonly used to refer to life forms that exist beyond Earth.
Exobiology, the study of life beyond Earth, frequently uses the term extraterrestrial to discuss potential life forms in the universe.
In the field of science fiction, writers often explore the concept of extraterrestrial life in their stories, creating imaginative worlds and creatures from other planets.
Psychologists may study the psychological impact of beliefs in extraterrestrial life on individuals, including experiences of alien abduction or encounters.
Astronomers search for evidence of extraterrestrial life by studying planets in other solar systems and analyzing signals from outer space for signs of intelligent life.
Astrobiologists study the possibility of life on other planets and moons, exploring the conditions that could support extraterrestrial organisms.
Scientists at NASA research the potential for human exploration of other planets and moons in our solar system, looking for signs of past or present extraterrestrial life.