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, ...

Up to 200 worlds investigated by NASA's exoplanet-hunting TESS satellite could be bigger than predicted, a finding that could impact our search for alien life.

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

The search for alien life often sparks the imagination with images of extraterrestrial beings and strange worlds. However, a new theory is shifting the focus—what if life elsewhere in the universe ...

Astronomers have narrowed down the cosmic search for life, identifying fewer than 50 rocky planets among thousands of known exoplanets that may have the right conditions to support life. Using new ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. A composite view of Mars taken by the Viking I and II probes. NASA/USGS In September, NASA announced the discovery of a possible ...

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

Life may not get blasted off any of the known "super-Earth" worlds as readily as it can from our planet, scientists find. The discovery suggests that any intelligent aliens that develop on such ...

The northern ice ap of Mars seen from space - NASA/JPL-Caltech/MSSS Humanity has dreamed about discovering life on alien planets for as long as we have dreamed about visiting other worlds. Since Mars ...