Pentagon unveils B-21 Raider aircraft with advanced stealth technology

The US military has unveiled the B-21 Raider, its first new stealth bomber in 30 years. Northrop Grumman, which developed the aircraft, first showed us a silhouette of the plane covered by a shroud way back in 2015. Now, the Pentagon has officially presented the B-21 at an event at Northrop Grumman's plant in Palmdale, California, but most of its details still remain a secret. Prior to the event, though, the company called it the "world’s first sixth-generation aircraft," which means it's a lot more technologically advanced than the military jets in service today.