Space-watchers saw the handwriting on the wall months ago, but now it’s official: NASA’s Kepler spacecraft, by far the most successful planet-hunting telescope in history, isn’t coming back. Engineers ...
Kepler 452b appears to have many similarities to Earth, but is 1,400 light years away. Astronomers hunting for another Earth have found the closest match yet—a potentially rocky planet circling its ...
When the Kepler space telescope malfunctioned last spring, it looked as though its incredibly successful planet-hunting mission might be over—and NASA made that sad fact official a few months later.
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