The first test flight of a new prototype space plane went according to plan aside from a slight mishap.
The US Air Force's enigmatic space plane, the X-37B, has embarked on its third mysterious mission.
The mysterious aircraft will be heading off in to the skies once again on another undetermined mission.
The experimental US Air Force X-37B space plane was supposed to land in December after nine months.
Richard Branson's Virgin Galactic are preparing their sub-orbital space plane SpaceShipTwo for test flights in the hope ...