Video: Delta 4 launch highlights

A United Launch Alliance Atlas 5 rocket powered away from Vandenberg Air Force Base in California tonight to place a classified surveillance satellite into space for the U.S. National Reconnaissance Office. Follow the ascent in our live journal.

A United Launch Alliance Atlas 5 rocket topped by the Air Force’s X-37B miniature space shuttle blasted off from Cape Canaveral’s Complex 41 today to deliver the spaceplane into orbit.

Launch of an Atlas 5 rocket from Cape Canaveral with a U.S. Air Force infrared surveillance satellite was scrubbed Thursday evening after engineers encountered a balky valve associated with the first stage’s liquid oxygen system.