This artist's rendition provided by NASA shows Kepler-69c, a super-Earth-size planet in the habitable zone of a star like our sun, located about 2,700 light-years from Earth in the constellation ... more 
This artist's rendition provided by NASA shows Kepler-69c, a super-Earth-size planet in the habitable zone of a star like our sun, located about 2,700 light-years from Earth in the constellation Cygnus. Astronomers using NASA data calculate that in our galaxy alone there are at least 8.8 billion Earth-sized planets that are not too hot or not too cold circle stars that are just like our sun, according to a study published Monday, Nov. 4, 2013 in the journal Proceedings of the National Academy of Science. For perspective, that’s far more Earth-like planets than there are people on Earth. (AP Photo/NASA/Ames/JPL-Caltech) less 
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Associated Press | Photo By NASA/Ames/JPL-Caltech
Mon, Nov 4, 2013 3:10 PM EST