RT @DavidBrin: NASA's Kepler Space Telescope finds what may be... a Neptune-sized exomoon https://t.co/MjJ6TzKoIn

NASA's Kepler Space Telescope finds what may be... a Neptune-sized exomoon https://t.co/MjJ6TzKoIn

— David Brin (@DavidBrin) July 28, 2017

from Twitter https://twitter.com/iPhoneMaster13

July 28, 2017 at 02:19PM
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