Remember meForgot password?
    Log in with Twitter
Image uploaded by Albert Baer

2011-12-05 17:51:34

This diagram compares our own solar system to Kepler-22, a star system containing the first "habitable zone" planet discovered by NASA's Kepler mission. The habitable zone is the sweet spot around a star where temperatures are right for water to exist in its liquid form. Liquid water is essential for life on Earth. (NASA)

Featured In
News Apr 19, 2012 - Video: 'The Solar System: Explore your Backyard'
Latest News
Top News