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 ...

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 ...

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 ...

After Steven Vogt and his team announced the discovery of a planet in the habitable zone of Gliese 581 in late September 2010, other astronomers failed to confirm the discovery. Yet, as Dr. Vogt told ...

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 ...

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 ...

An artist's rendition of Gliese 581g from 2010. Unfortunately the artist put a planet where there isn't one. Lynette Cook / NASA Since the first planet outside of our solar system was discovered in ...

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 ...

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 ...