The US Space Force's Boeing X-37B unmanned, reusable space plane will be launched via a SpaceX Falcon Heavy rocket from Kennedy Space Center, Florida, for the first time in early December, the US military wrote in a press release. "The X-37B Mission 7 will launch on a SpaceX Falcon Heavy rocket for the first time, designated USSF-52, with a wide range of test and experimentation objectives," Space Force said. The mysterious spaceplane is built by Boeing and operated by the Air Force Rapid Capabilities Office and the Space Force. Its last…