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Photos: More Delta 4 launch shots
The United Launch Alliance Delta 4 rocket blasts into the predawn skies at Vandenberg Air Force Base with the NROL-45 payload for the U.S. National Reconnaissance Office.

Photos: Delta 4 launches on secret NROL-45 mission
A collection of pad photos from the United Launch Alliance Delta 4 rocket flight to deploy the NROL-45 spy satellite payload for the U.S. National Reconnaissance Office.

Delta 4 goes against the grain to backwards orbit for spy bird
Soaring in fine fashion before daybreak, a United Launch Alliance Delta 4 rocket maneuvered a new spy satellite into a unique retrograde orbit Wednesday morning to join an expanding constellation of radar-imaging spacecraft.
VideoVideo: Delta 4 launches before dawn from California
A replay of the United Launch Alliance Delta 4 rocket launching on the NROL-45 satellite-deployment mission for the National Reconnaissance Office from Vandenberg Air Force Base, California.

Photos: Delta 4 rocket revealed
The 32-story-tall mobile service tower is retracted from the Delta 4 rocket at Vandenberg's Space Launch Complex 6 pad for the NROL-45 flight that will place a surveillance satellite into orbit for the U.S. National Reconnaissance Office.

Live coverage: Delta 4 countdown and launch journal
A United Launch Alliance Delta 4 rocket blasted off from Vandenberg Air Force Base in California at 3:40 a.m. local (6:40 a.m. EST; 1140 GMT) today to place a secret payload into space for the National Reconnaissance Office. Follow the mission in our live journal.

National Reconnaissance Office to begin year’s manifest with Delta 4
Beginning the National Reconnaissance Office's campaign of four launches in 2016 using boosters big and small to deploy a varied collection of new intelligence satellites, a Delta 4 rocket stands ready for liftoff before sun-up Wednesday from California.

Photos: NROL-45 payload fitted atop Delta 4 for launch
This collection of photographs shows the National Reconnaissance Office's classified NROL-45 payload, already encapsulated in the Delta 4 nose cone, being moved from the payload processing facility at Space Launch Complex 6 and lifted atop the United Launch Alliance rocket for flight from Vandenberg.
VideoRecap story: Last GPS satellite of its generation arrives in space
The main engine rumbling to life. Ice shards breaking free. The rocket lumbering off the pad. The battle against gravity being won once again. That was the scene as the Atlas 5 took flight to cap a generation of Global Positioning System satellites.

Photos: Atlas 5 launches navigation craft from Cape Canaveral
A collection of pad photos from the United Launch Alliance Atlas 5 rocket flight to deploy the GPS 2F-12 satellite for use by the U.S. military and billions of civilians around the world.