Alien life could exist on hot, rocky planets, sustained not by water but by a type of salty fluid, new research suggests. Reading time 3 minutes The search for alien life usually hinges on finding the ...

"This can dramatically increase the habitability zone for all rocky worlds." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Here on Earth, ...

The number of planets capable of hosting alien life may be smaller than we thought, thanks to a new understanding of how water levels drive a planet’s climate. Below a certain level, carbon dioxide in ...

Life as we know it needs water, but life as we don't know it may run on concentrated sulfuric acid. The chemistry of life as we know it wouldn't work in a place like the huge Saturn moon Titan, where ...

A large sub-Neptune-sized planet revolving around a red dwarf star 124 light years away has been the topic of debate among several scientists in recent months. According to models from a group of ...

If life exists beyond Earth, water may be the first clue. Water Worlds explores the planets and moons where liquid water could exist — and where alien life might be quietly thriving.