A Place for Alien Life? NASA’s Kepler Mission Discovers Earth’s Older Cousin
This artist’s concept depicts one possible appearance of the planet Kepler-452b, the first near-Earth-size world to be found in the habitable zone of star that is similar to our sun. Credit: NASA Ames/JPL-Caltech/T. Pyle
Scientists say NASA’s Kepler Space Telescope has discovered Earth’s “older, bigger first cousin” – a planet that’s about 60 percent bigger than Earth, circling a sunlike star in an orbit that could sustain liquid water and perhaps life.
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