NASA announced the discovery of a planet 40 light years from Earth that orbits every 12.8 days and is possibly even habitable. Gliese 12 b is a "super Earth exoplanet" that is nearly the same size ...

Astronomers discover Gliese 12 b, a potentially habitable exoplanet Gliese 12 b could be the nearest temperate world like our own located to date — but don’t book your travel tickets quite yet.

In an exciting breakthrough for astronomy and the search for extraterrestrial life, a team of international scientists has announced the discovery of Gliese 12 b, a temperate, Earth-sized ...

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.

Gliese 581g, and other planets that followed, have transformed our understanding of Earth's place in the universe. Skip forward a few years, though, and suddenly Gliese 581g has fallen from its perch.

Gliese 581d was thought to be uninhabitable. But we’re in luck. It seems like a lovely place to live. With a few caveats. If–as seems ever more likely–we render this planet uninhabitable, we ...

Gliese 581c is a super-Earth planet that was discovered in 2007. Early research suggested it may have liquid water on its surface but more recent research disputes that idea.

Wilhelm Gliese was a German astronomer who published his Catalogue of Nearby Stars in 1957. Today, some stars are still referred to by the number Gliese gave them, such as Gliese 380 and Gliese ...