Delta 4 powers off the launch pad

The United Launch Alliance Delta 4 rocket, flying for the first time in its Medium+ (5,2) configuration, successfully ascends from Vandenberg Air Force Base's Space Launch Complex 6 carrying the NROL-25 mission for the U.S. National Reconnaissance Office.

See our Mission Status Center for the latest news on the launch.

Photo credit: Pat Corkery/United Launch Alliance