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

This artistic illustration shows the TRAPPIST-1 red dwarf star system, home to seven Earth-sized exoplanets, several of which lie within the star’s habitable zone. In the foreground is TRAPPIST-1 b, ...

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

NASA has taken a bold step in the search for alien life beyond Earth. The space agency announced the selection of seven advanced technology partners for its next major mission, the Habitable Worlds ...

NASA officials have previously spoken of the possibility of extraterrestrial life amid scientific uncertainty while ...

After years of discovering exoplanets at a staggering pace, astronomers are now starting to distinguish the simply interesting from the truly promising. A new study highlights a select group of rocky ...

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

Alien world exploration reveals a dramatic planet covered in glowing molten surfaces and thick storm clouds in deep space.

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

Scientists hunting for life beyond Earth have long thought that water is one of the key indicators. But a group of experts now says that looking for life on water–rich planets could be a waste of time ...

CTV National News: NASA finds 7 planets NASA scientists hit the cosmic jackpot, discovering a new solar system with planets that could support life. John Vennavally-Rao reports.

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. The Goldilocks zone, or ...