Newly discovered planet Gliese 581g - just a few times the mass of Earth, average surface temperature a balmy minus 31 to minus 12 C, not too far away...
Thursday, September 30, 2010
It turns out the red dwarf star Gliese 581 has two more planets on top of all the other interesting ones we've discovered and talked about, and one of them is a prime candidate for our first Earth-like planet. There are a lot of articles on the planet but the best source is almost always Bad Astronomy, where we get some commentary along with it.
What we know about this planet so far:
Edit: here's a video on the discovery too.