Categories Articles Northrop Grumman is buying missile and rocket maker Orbital for $7.8 billion Post author By crystalg Post date September 18, 2017 Business Insider Feedburner Tags ‘Buying, $7.8, billion, Grumman, maker, missile, Northrop, Orbital, rocket ← More than 80 people arrested in St. Louis during 3rd night of protests → Tillerson Says U.S. May Close Cuba Embassy Over Mystery Ailments