We don't know yet if life exists away from Earth.
“Template:For Template:Other uses Template:Pp-move-indef Extraterrestrial life (from the Latin...Extraterritorial
“Extraterrestrial aliens may possibly exist on other planets, or moons like Europa. Their...Extraterrestrial aliens
“Invitation to ETI invites Extra-Terrestrial intelligent entities to contact humans or...Invitation to ETI
“A Habitable planet is a Planet where temperatures are right so liquid water can exist. That...Habitable planet
“A disk or cylinder could be a very efficient shape for a spacecraft if aliens from planets with...Could a flying saucer be an efficient design for an alien spacecraft?
“Static vapor air retention is a way to keep air on asteroids and other very low gravity worlds...Static vapor air retention