
US Air Force unveils new B-21 Raider stealth bomber, most advanced military aircraft ever
The U.S. Air Force unveiled the new Northrop Grumman-built B-21 Raider stealth bomber Friday (Dec. 2) to be the new backbone of the Air Force's fleet.
Military forces have a long association with spaceflight, with modern rockets evolving from missiles developed during World War II. Today's armed forces rely on space-based assets for reconnaissance, weather tracking, communication, navigation and more. The U.S. Air Force regularly launches GPS and missile-defense tracking satellites, and operates two classified X-37B robotic space planes. Learn more about military satellites, space weapon, the Space Force and more here.
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