9 years ago
Kepler 452 b: What It Would Be Like to Live on Earth's "Cousin"
NASA Ames researcher, former astronaut muse on the challenges and advantages of spending time on the high-gravity planet.
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NASA Finds Closest Earth Twin Yet in Haul of 500 Alien Planets
NASA's Kepler space telescope has spotted the most Earth-like alien planet yet discovered — a world called Kepler-452b that's just slightly bigger than our own and orbits a sunlike star at about the same distance Earth circles the sun.
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