Here's A Thirty-Year History Of Getting Closer To Comets http://space.io9.com/heres-a-thirty-year-history-of-getting-closer-to-comets-1657169994 … #ISEE3 #DPS14 #cometlandingpic.twitter.com/lVYmfBWPAg
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Here's A Thirty-Year History Of Getting Closer To Comets http://space.io9.com/heres-a-thirty-year-history-of-getting-closer-to-comets-1657169994 … #ISEE3 #DPS14 #cometlandingpic.twitter.com/lVYmfBWPAg
