One of them is about 4.2 light years away - more than a whopping 24 trillion miles from Earth! Find out more here.

If we're to find extraterrestrial life in the universe, astronomers have pinpointed the best places to look for it. They have identified just under 50 rocky worlds most likely to be habitable out of ...

Astronomers have narrowed down the cosmic search for life, identifying fewer than 50 rocky planets among thousands of known ...

For years, the search for alien life has focused on Earth-like planets orbiting distant stars. But this episode explores a ...

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

Alien planets are far away but extreme lasers on Earth are giving scientists a way to investigate what they're like.

A new study published in Monthly Notices of the Royal Astronomical Society has pinpointed the best planets for the search for ...

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

What would alien life from another planet be like? But we rarely ask the opposite: What would they think of us?

Aliens may not be green after all. New research suggests entire planets could appear purple, changing how scientists detect ...

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