Northrop Grumman delivered three 63-inch diameter GEM 63 solid rocket motors for United Launch Alliance’s Atlas 5 launch vehicle.

Northrop Grumman developed the GEM 63 rocket motors under a cooperative agreement with United Launch Alliance.

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Sandra Erwin writes about military space programs, policy, technology and the industry that supports this sector. She has covered the military, the Pentagon, Congress and the defense industry for nearly two decades as editor of NDIA’s National Defense...