The U.S. Air Force has awarded a $13 billion contract to Sierra Nevada Corp. (SNC) to develop a new Survivable Airborne Operations Center (SAOC), set to replace the aging E-4B Nightwatch, also known as the "Doomsday plane".
The BE-4 engine for Blue Origin's New Glenn rocket exploded during testing, and the company said they now know why. Read the article to learn more details.