A rocky alien planet called Gliese 581d may be the first known world beyond Earth capable of supporting life as we know it, a new study suggests. Astronomers performing a new atmospheric-modeling ...

More than 10 years after the discovery of the first extrasolar planet, astronomers have now discovered more than 250 of these planets. Until a few years ago, most of the newly discovered exoplanets ...

Nearly two years after spotting Gliese 581g, the celebrated "first potentially habitable" alien world, the planet's discoverers continue to fight for its existence. The discovery of Gliese 581g made ...

On a special episode (first released on Wednesday, June 26th) of The Excerpt podcast: The age-old question has been debated for centuries. Might we soon get an answer? The planet that is the current ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Artist’s conception of the newly discovered planet Gliese 12 ...

The planetary system around the red dwarf Gliese 581, one of the closest stars to the Sun in the galaxy, has been the subject of several studies aiming to detect the first potentially habitable ...

Meet Gliese 667C, the little star with the big family. Gliese 667C resides near the "stinger" stars in the tail of Scorpius the Scorpion. You can even see it in binoculars on a clear night low in the ...

HATFIELD, England – In the search for Earth-like planets, astronomers zeroed in Tuesday on two places that look awfully familiar to home. One is close to the right size. The other is in the right ...

A rocky alien planet called Gliese 581d may be the first known world beyond Earth capable of supporting life as we know it, a new study suggests. Astronomers performing a new atmospheric-modeling ...

In April, a European team of astronomers announced in Astronomy & Astrophysics the discovery of two possibly habitable Earth-like planets. A&A is now publishing two independent, detailed studies of ...

A rocky alien planet called Gliese 581d may be the first known world beyond Earth capable of supporting life as we know it, a new study suggests. Astronomers performing a new atmospheric-modeling ...