NASA Remembering Space Shuttle Challenger

NASA lost seven of its own on the morning of Jan. 28, 1986, when a booster engine failed, causing the Shuttle Challenger to break apart just 73 seconds after launch. In this photo from Jan. 9, 1986, the Challenger crew takes a break during countdown training at NASA's Kennedy Space Center. via NASA http://www.nasa.gov/multimedia/imagegallery/image_gallery_2437.html