Amanda MaciasSeptember 27, 2016  An artist rendering shows the first image of a new Northrop Grumman Corp long-range B-21 bomber in this image released on February 26, 2016. WASHINGTON, D.C. — Little is known about America's newest stealth bomber, the B-21, which will replace the Air Force's aging B-52 and B-1Bs. Shrouded in secrecy, here's all we know (so far) about the B-21: •It will be developed by Northrop Grumman, the same manufacturer of the iconic B-2 Spirit •Northrop Grumman won the contract in October •The Air Force is slated to buy 100 of these new bombers •The program...