Humans have wondered for centuries whether we are alone in the universe — and a new study suggests that if alien ...

This artistic illustration shows the TRAPPIST-1 red dwarf star system, home to seven Earth-sized exoplanets, several of which ...

The US government's registration of alien.gov and aliens.gov has triggered global speculation about a potential UFO ...

Out of the 6,000 known exoplanets, it's these rocky worlds that are most worthy of attention in the search for life beyond ...

A new catalog of potentially habitable exoplanets provides the framework for future observations in the search for alien life ...

Astronomers have reportedly narrowed the search for extraterrestrial life to a focused list of 45 rocky exoplanets. Out of ...