Pluto: From Mountains to Plains via NASA https://t.co/FNlGR6qzpS https://t.co/MVPEHfRBKB

Pluto: From Mountains to Plains via NASA https://t.co/FNlGR6qzpS http://pic.twitter.com/MVPEHfRBKB

— Dean Norris (@geekynerdyone) December 15, 2015

from Twitter https://twitter.com/geekynerdyone

December 15, 2015 at 12:37AM
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