1. extraterrestrial - Noun
2. extraterrestrial - Adjective
a form of life assumed to exist outside the Earth or its atmosphere
originating or located or occurring outside Earth or its atmosphere
Source: WordNetThis planet seems to be in such sorry shape. And I can't ever think about the rest of the universe without coming back home and thinking what the implications for life here would be if we were to really have some definitive proof of extraterrestrial life. Ann Druyan
For each letter received from a creditor, write fifty lines on an extraterrestrial subject and you will be saved. Charles Baudelaire
The Federal government does not have any information about extraterrestrial life to conceal, and there are no secret projects for me to investigate. Orrin Hatch
These testimonies establish once and for all that we are not alone. Technologies related to extraterrestrial phenomena are capable of providing solutions to the global energy crisis, and other environmental and security challenges. (May 9, 2001) Steven M. Greer
All his studies had been for extraterrestrial exploration. There was no place for him on Earth; and now he was barred from space. Robert Sheckley
For all I know we may be visited by a different extraterrestrial civilization every second Tuesday, but there's no support for this appealing idea. The extraordinary claims are not supported by extraordinary evidence. Carl Sagan