Earth-sized planet in habitable zone discovered!

Kepler keeps on delivering: we’ve just discovered the first Earth-sized planet within its sun’s habitable zone. That alone might not mean much, of course: it’s not clear whether it has an atmosphere at all, and if it doesn’t, it won’t have liquid water, and probably no life; and of course, even if it has an atmosphere, nobody knows how likely or unlikely it will be to carry life, much less intelligent life. But it’s a start (and maybe a bit of positive science-news to balance the depressing news of Gabriel García Márquez’ death).

The facts: it’s 500 lightyears away, 1.1 times the size of the Earth, and likely to be rocky (though nobody knows yet for sure). Its year lasts 130 days, and since it’s a bit further out in its sun’s habitable zone, even with an atmosphere it might be chilly (then again, I suppose there’s a possibility that thanks to greenhouse effects, it might not be). So definitely, a spot in the universe to keep our eyes on.

Soooo, too soon to start packing our bags?..

Apparently, speculation is that its sun is more orange than ours, which means the oceans are duller, clouds and ice (if there’s any water at all) are orange instead of white (meaning snow caps on mountains are colored as well), and the sky isn’t blue.

Sounds awesome.