Delta 4 rocket awaits launch on NROL-25

The United Launch Alliance Delta 4 rocket stands wrapped by access platforms within the mobile service gantry at Vandenberg Air Force Base's Space Launch Complex 6 pad the afternoon of Wednesday, March 28 as news arrived that liftoff would be delayed 24 hours to Friday by a technical issue. The rocket will haul a classified spy satellite into orbit for the National Reconnaissance Office.

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

Photo credit: Ben Cooper/Spaceflight Now