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Gateway gift: Northrop Grumman delivers lunar-orbit hab for Space Center Houston display
Overview for NASA’s Northrop Grumman 21st Commercial Resupply Mission
Northrop Grumman names Cygnus cargo craft for fallen Challenger commander
Northrop Grumman wins DARPA contract for a railway on the Moon
DARPA picks Northrop Grumman to develop 'lunar raiload' concept
Northrop Grumman likely to end its bid for a commercial space station
