Add Yahoo as a preferred source to see more of our stories on Google. Some exoplanets, like the one shown in this illustration, may have atmospheres that could make them potentially suitable for life.

The search for life on other planets relies, for lack of a better alternative, on what we know on Earth. However, this ...

A new study suggests alien life may be easier to detect through clusters of similar planets rather than single biosignatures.

An artist's conception of Pandora observing an exoplanet.NASA Editor at Large It was one of humanity’s greater vanities that we ever questioned whether there are any planets in the universe beyond the ...

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 ...

Amid a new wave of interest in the possibility of life on other worlds, Lawrence Livermore National Laboratory and NASA embarked on a new effort to identify planets with the basic compounds for life ...

Unfortunately for science fiction fans, desert worlds outside our solar system are unlikely to host life, according to new ...

Earth may have won a cosmic chemistry lottery. Researchers found that during the planet’s earliest formation, oxygen had to be in an extremely narrow “Goldilocks zone” for two life-essential elements, ...

When astronomers search for planets that could host liquid water on their surface, they start by looking at a star's habitable zone. Water is a key ingredient for life, and on a planet too close to ...

Amid a new wave of interest in the possibility of life on other worlds, Lawrence Livermore National Laboratory and NASA are embarking on a new effort to identify planets with the basic compounds for ...