The US Air Force's B-21 "Raider" bomber, designed like a flying wing, achieved a significant milestone with its inaugural flight on Friday, November 10, marking the commencement of a new era in long-range nuclear-capable stealth bombers crafted by Northrop Grumman Corp,

NEW YORK - US defense group Northrop Grumman will buy out the rocket and missile maker Orbital ATK in a deal worth $9.2 billion, the firms said on Monday.