By 
April 21st, 2014
Air Force X-37B robotic space plane is shown after Vandenberg AFB landing. Third mission of the program is now being flown in Earth orbit – the longest duration flight of the winged spacecraft.
Credit: USAF/Boeing
A new story from me posted at SPACE.com:
US Air Force’s Secretive X-37B Space Plane Nears Day 500 in Orbit
By Leonard David, Space.com’s Space Insider Columnist
April 21, 2014 01:21pm ET
http://www.space.com/25573-secretive-x37b-military-space-plane-500days.html
Posted in Space News
