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 ...

View of the possible inner planets of the Gliese 581 system along with their star, a red dwarf. (Lynette Cook) What astronomers thought were a pair of potentially life-friendly alien worlds are ...

Nearly two years after spotting Gliese 581g, the celebrated "first potentially habitable" alien world, the planet's discoverers continue to fight for its existence. Subscribe to read this story ...

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 ...

While scientists believe conditions suitable for life might exist on the so-called "super-Earth" in the Gliese 581 system, it's unlikely to be transferred to other planets within that solar system.

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 ...

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 ...

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 ...