The United States Air Force's (USAF) second flight of the X-37B robotic mini space shuttle has exceeded its expected endurance limit of 270 days on orbit and the USAF has announced it is extending its flight. Doing what? Mum's the word.
Take a Space Shuttle and cut it into a fourth. What do you now have? Duh, a mini space plane. Orbital Sciences Corp.'s wants these little shuttles to transport crews to and from the International Space Station.