NASA Remembers Its Fallen Heroes, 30th Anniversary of Challenger Accident via NASA https://t.co/R5AAP3jUnt: NA... https://t.co/E9e13lPn6F

NASA Remembers Its Fallen Heroes, 30th Anniversary of Challenger Accident via NASA https://t.co/R5AAP3jUnt: NA... https://t.co/E9e13lPn6F

— John Prieto (@prietoj) January 22, 2016

from Twitter https://twitter.com/prietoj

January 22, 2016 at 11:28AM
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