Image: David A. Aguilar, Harvard-Smithsonian Centre for Astrophysics (GJ 1214b on the right)
GJ 1214b. Not as evocative as 'Earth,' but that's the name of the planet recently discovered by astronomers, which appears to be three quarters water and ice, with one quarter rock. The Harvard-Smithsonian Centre for Astrophysics say, "There are also tantalising hints that the planet has a gaseous atmosphere."
Which is all well and good, except that the planet's temperature is estimated at between 280°C and 120°C (536°F and 248°F) (Out of the global warming frying pan into the fire.) Not to mention that it is some 42 light years away. (Where's warp speed or hyperdrive when you need it?)
So, all things considered, it looks like we'll be staying put on Earth for a while longer yet. All the more reason to look after the one home we do have. Over to you COP15 delegates. Do your stuff. ::Harvard-Smithsonian Centre for Astrophysics, via New York Times and Herald Sun.