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
“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
“Extraterrestrial aliens may possibly exist on other planets, or moons like Europa. Their...Extraterrestrial aliens
“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