NASA has disqualified one of the two proposals for a large astrophysics mission, a decision the project’s leader blames on upheaval within NASA last year.
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Watch Northrop Grumman's 1st 'Cygnus XL' cargo spacecraft leave the space station on March 12
Northrop Grumman's first "Cygnus XL" cargo ship will depart the International Space Station Thursday morning (March 12), and you can watch the action live.
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