Air Force space plane X-37B passes 400 days in orbit
The U.S. Air Force's unmanned X-37B space plane has now circled Earth for more than 400 days on a hush-hush mission that is creeping closer and closer to the vehicle's orbital longevity record. The X-37B spacecraft launched on Dec. 11, 2012, meaning that it has been aloft for 413 days as of Tuesday …
Jacqueline Elaine Hanna flipped this story into The World•3700d