Yesterday the Kepler mission's science team announced the confirmation of Kepler-22b, the first planet found in the "habitable zone" of its star, the region where liquid water could exist on a planet's surface. The Earth-like planet lies about 600 light-years away, is about 2.4 times the size of Earth, and has a temperature of about 22C.
Learn more about the Kepler telescope and Kepler-22b by following the links above, or watch the full press conference below.
What do you think? Is there another Earth out there somewhere?