The controversial exoplanet Gliese 581g is the best candidate to host life beyond our own solar system, according to a new ranking of potentially habitable alien worlds. Gliese 581g shot to the top of ...

The announcement Wednesday (Sept. 29) of two newfound alien planets circling the star Gliese 581 adds to the nearby solar system's intrigue, further cementing its status as a top candidate to harbor ...

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 ...

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 ...

I got dibs on a beachfront plot! I can't wait to sit in a cheaply constructed lawn chair and drink beer out of aluminum cans and cola out of plastic bottles and then drive to the space-corner store ...

Astrophysicists have discovered the first potentially habitable planet outside our solar system. It’s called Gliese 581 g, and it’s about 20 light-years from Earth. If we got tired of living here, how ...

Gliese 581d, an exoplanet (planet outside our solar system) seven times the size of Earth, orbits a star called Gliese 581 that is 20 light-years away in the constellation Libra. When it was first ...

In April, a European team of astronomers announced the discovery of two possibly habitable Earth-like planets. Two new detailed studies of this system confirm that one of the planets might indeed be ...

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 ...