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Orbital ATK
Orbital ATK
Credit: AP/Steve Helber
Northrop completes $9B Orbital ATK acquisition
Federal regulators want more information about Northrop Grumman, Orbital ATK merger
Orbital ATK shareholders approve $9B Northrop Grumman merger
Space news: Supermoon, rocket launch and more galaxies
Orbital ATK’s space station supply mission pushed back
Building an environmentally friendly rocket
More Orbital ATK
Mission to Mars: Test success for the rocket that will launch them
Orbital ATK wins new space station delivery contract
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