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Delta 4-Heavy factoids
Learn more about the United Launch Alliance Delta 4-Heavy rocket as it prepares to perform the classified NROL-37 mission for the National Reconnaissance Office,
Photos: Gantry retracted from Delta 4-Heavy
The 330-foot tall mobile service tower is rolled away from the United Launch Alliance Delta 4-Heavy rocket at Cape Canaveral's pad 37B on launch day.
Photos: Delta 4-Heavy on the pad Wednesday
On the eve of its scheduled flight for U.S. national security interests, the United Launch Alliance Delta 4-Heavy rocket stands quietly inside the protective gantry at Cape Canaveral's Complex 37 pad.
Live coverage: Delta 4-Heavy countdown and launch journal
A United Launch Alliance Delta 4-Heavy rocket blasted off from Cape Canaveral at 1:51 p.m. EDT (1751 GMT) today to haul a classified satellite into space for the U.S. National Reconnaissance Office. Follow the mission in our live journal.
VideoSurveillance satellite launching Thursday atop Delta 4-Heavy rocket
One of the largest satellites in the world will launch aboard America's biggest operational booster Thursday, riding that power to a listening post 22,300 miles above the planet for its clandestine eavesdropping mission, all indications suggest.
VideoVideos: Delta 4-Heavy launch flashback
Get a preview of Thursday's United Launch Alliance Delta 4-Heavy rocket flight in these video highlights packages from previous missions by the big booster for NASA and the National Reconnaissance Office from Cape Canaveral in Florida and Vandenberg Air Force Base in California.
Weather 40 percent ‘go’ for Delta 4-Heavy
After tropical weather passes through Florida to start the week, meteorologists say there is a 40 percent chance of acceptable conditions for the United Launch Alliance Delta 4-Heavy rocket to fly Thursday from Cape Canaveral with a reconnaissance satellite payload for the U.S. government.
Upcoming Delta 4-Heavy launch back on track after payload-related delay
A new launch date has been established -- June 9 -- for the Delta 4-Heavy rocket to carry a classified satellite into space for U.S. national security needs.
Delta 4-Heavy launch postponed by unspecified payload issue
Payload readiness has delayed next weekend's planned Delta 4-Heavy rocket launch for the U.S. National Reconnaissance Office.
VideoPhotos and video: Payload mated to Delta 4-Heavy rocket for upcoming launch
Shielded from view within the protective rocket nose cone, a covert surveillance satellite has been mounted atop a Delta 4-Heavy rocket for launch June 4.