RT @AlejandroFrank: Carl Sagan: a message of reason and hope. Our pale blue dot. https://t.co/qHQVLdoGxT

Carl Sagan: a message of reason and hope. Our pale blue dot. https://t.co/qHQVLdoGxT

— Alejandro Frank (@AlejandroFrank) June 14, 2015

from Twitter https://twitter.com/xuancarlos

June 14, 2015 at 02:07PM
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