The TRAPPIST-1 system lies just 39 light-years away from our own solar system. https://t.co/v5kXfeoRLc http://pic.twitter.com/vmlR2CyPVZ
— SPACE.com (@SPACEdotcom) September 28, 2017
from Twitter https://twitter.com/iPhoneMaster13
September 28, 2017 at 12:47AM
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