The president in February directed the Department of Defense to begin reviewing government files related to extraterrestrial ...

New research suggests that the origins of life may be tied not only to deep-sea hydrothermal vents but also to environments created by meteor impacts.

A new study suggests alien life may be easier to detect through clusters of similar planets rather than single biosignatures.

Ancient Greeks believed in alien life, as well as in gods, souls, and beings that inhabited the Moon, stars, and Heavens.