Gliese 581 is a red dwarf star about 20 light-years from Earth. Starting in 2005, astronomers at the European Southern Observatory (ESO), using the High Accuracy Radial velocity Planet Searcher ...

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 ...

Two new detailed studies of this system confirm that one of the planets might indeed be located within the habitable zone around the star Gliese 581. More than 10 years after the discovery of the ...

It’s called Gliese 581 g, and it’s about 20 light-years from Earth. If we got tired of living here, how would we get to Gliese 581 g? Laser sails are the most technically feasible option.

It's likely two to three times as massive as Earth and zips around its parent star, the red dwarf Gliese 581, every 30 days or so. [Gallery: The Strangest Alien Planets] This orbit places the ...

Gliese 581-g is only 20 light years away. How long does that take, anyway? The possibility of life on other planets has been a staple of science fiction for decades. Now that possibility has taken ...

[Video: Life-Sustaining "Super Earth" Gliese 581d] The Gliese 581 system: Worlds of possibilities Gliese 581d's parent star, known as Gliese 581, is a red dwarf located 20 light-years from Earth ...

Last time we wrote about the possibly-habitable exoplanets orbiting red dwarf star Gliese 581 was back when we were possibly lie in the habitable zone. 581c lies in a questionably-habitable spot ...

orbits a star called Gliese 581 that is 20 light-years away in the constellation Libra. When it was first discovered in 2007, Gliese 581d was thought to be just outside its star's habitable zone ...

In April, a European team announced in Astronomy & Astrophysics the discovery of two new planets orbiting the M star Gliese 581 (a red dwarf), with masses of at least 5 and 8 Earth masses.

In April, a European team announced in Astronomy & Astrophysics the discovery of two new planets orbiting the M star Gliese 581 (a red dwarf), with masses of at least 5 and 8 Earth masses.

A&A is now publishing two independent, detailed studies of this system, which confirm that one of the planets might indeed be located within the habitable zone around the star Gliese 581.