-
Even if Gliese 581c turns out to be void of little green men, there is time yet.
ECONOMIST: Is there anybody out there?
-
According to theory, a planet the size and mass of Gliese 581c should be rocky, like the Earth.
ECONOMIST: Is there anybody out there?
-
At a distance of more than 20 light years from Earth, Gliese 581c is not exactly on the doorstep.
BBC: NEWS | UK | Magazine | Meet the neighbours
-
The planet, dubbed Gliese 581c, has a radius 50% larger than this planet.
ECONOMIST: Is there anybody out there?
-
And Vogt is part of a team that announced another potentially habitable super Earth, known as Gliese 667Cc, in February.
MSN: Does 'potentially habitable' alien world exist? - Technology & science - Space - Space.com | NBC News
-
If that were the case, one side of Gliese 581d would be permanently lit (and heated) while the other experienced unending darkness.
ECONOMIST: Another Earth?
-
Indeed Gliese 581d's parent is a red dwarf the tiniest stellar species.
ECONOMIST: Another Earth?
-
It orbits a star, Gliese 876, that looks pretty ordinary.
NPR: Astronomers Find Planet with Similarities to Earth
-
There is also a planet called Gliese-581g, discovered in September 2010, which is thought to be even more like Earth than Kepler-22b in terms of its suitability for plants and animals.
CNN: 3 new planets could host life
-
In its solar system there is another planet, Gliese-581d, that is also of interest in the search for life, according to the Planetary Habitability Laboratory at the University of Puerto Rico at Arecibo.
CNN: 3 new planets could host life