http://www.bbc.co.uk/news/science-environment-16040655
http://news.sky.com/home/technology/article/16124448During the conference at which the result was announced, the Kepler team also said that it had spotted some 1,094 new candidate planets - nearly doubling the telescope's haul of potential far-flung worlds.
Kepler 22-b was one of 54 exoplanet candidates in habitable zones reported by the Kepler team in February, and is just the first to be formally confirmed using other telescopes.
More of these "Earth 2.0" candidates are likely to be confirmed in the near future, though a redefinition of the habitable zone's boundaries has brought that number down to 48. Ten of those are Earth-sized.