This artist's conception shows the inner four planets of the Gliese 581 system and their host star, a red dwarf star only 20 light years away from Earth. The large planet in the foreground is the ...

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 ...

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 ...

Remember Gliese 581g? The potentially habitable “second Earth” 20 light years away, also known as Zarmina? It’s been looking dicey for a while, as many ...

In the search for Earthlike planets, astronomers zeroed in Tuesday on two places that look awfully familiar. One is close to the right size. The other is in the right place. European researchers said ...

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 ...