Ryan sells ATK 126.78: Alliant Techsystems : ATK : Brings NASA's Space Launch System One Step Closer to 2017 Flight
ARLINGTON, Va., May 20, 2014 /PRNewswire/ -- NASA and ATK (NYSE: ATK) are one step closer to meeting a 2017 launch date for NASA's Space Launch System (SLS) after completion of a significant structural test of the booster's main attachment mechanism. ...
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