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 ...

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

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

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