Video: Delta 2/SMAP pre-launch news conference

This is a collection of images taken during the three previous flights of the U.S. Air Force’s X-37B Orbital Test Vehicle mini space shuttle.

There’s a new launch being added to Vandenberg Air Force Base’s schedules — another Delta 4 rocket flight for the National Reconnaissance Office.

The U.S. military’s mini space shuttle successfully returned to Earth today, touching down on Runway 15 at the Shuttle Landing Facility after spending 718 days in space.