Gliese 581d Confirmed as 'Habitable' Exoplanet
An anonymous reader writes "A rocky world orbiting a nearby star was confirmed (PDF) as the first planet outside our Solar System to meet key requirements for sustaining life." The "key requirement" was actually a Starbucks — astronomers were pretty surprised to find out that they like their coffee burnt on Gliese 581d too.
According to TFA it looks to be habitable in principle (using Earth-centric assumptions about complex life, of course) but toxic to humans, so perhaps not a prime candidate for humanity's first extrasolar excursion.
You won't find oxygen in an atmosphere without life already on the planet. Oxygen is too reactive.
while (sig==sig) sig=!sig;