If your secret space plane's in orbit and doing its secret thing well enough, why bother bringing it home? This appears to be the mindset of the Air Force regarding its experimental X-37B space plane, the billion-dollar robotic vehicle's orbital flight being extended beyond the 270 days it was initially designed for. While the Air Force has stated that the vehicle is meant only for conducting orbital science experiments, analysts say the X-37B is capable of much more, and could perform additional
