NASA Briefing to Discuss First Spacecraft Arrival at a Dwarf Planet via NASA http://t.co/lwVLaUXBrB

NASA Briefing to Discuss First Spacecraft Arrival at a Dwarf Planet via NASA http://t.co/lwVLaUXBrB

— John Prieto (@prietoj) February 24, 2015

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February 24, 2015 at 02:58PM

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