NASA Hosts Science Chat on Upcoming Historic Planetary Encounter via NASA http://bit.ly/2PLTvPP http://twitter.com/CHPSRE/status/1041802129843937280 September 17, 2018 at 02:32PM

NASA Hosts Science Chat on Upcoming Historic Planetary Encounter via NASA https://t.co/734E7J2DcD

— CollaborateForRights (@CHPSRE) September 17, 2018

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