Shuttle Atlantis unwrapped ahead of public debut

SpaceX’s first Falcon Heavy rocket was loaded with propellants Saturday at Kennedy Space Center’s launch pad 39A, as engineers make progress preparing for a hold-down engine firing, and eventually liftoff of the huge commercial launcher.

The Air Force’s robotic X-37B mini space shuttle swooped out of obscurity today after 718 days spent in orbit on a secretive military mission, touching down at the Kennedy Space Center’s orbiter runway on autopilot, the military announced on Twitter.

Video highlights of the 50th Atlas 5 flight. The United Launch Alliance rocket carried the eighth Global Positioning System (GPS 2F-8) satellite for the U.S. Air Force.