Northrop Grumman continues solid rocket motor development and test program Astrobitica December 5, 2025 (Last updated: December 5, 2025) 1 minute read Northrop Grumman tested a solid rocket motor Dec. 4 as part of an internal program to advance solid rocket propulsion technologies. The post Northrop Grumman continues solid rocket motor development and test program appeared first on SpaceNews. About the Author Astrobitica Administrator Visit Website View All Posts Post navigation Previous: Mobile networks want to use the satellite airwaves we need to track climate changeNext: Seeing a bull’s-eye in the desert | Space photo of the day for Dec. 5, 2025