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Delta 4 rocket evolving to upgraded main engine
When the next Delta 4 rocket flies in July, as well as all future ones to come, the enhanced RS-68A main engine will power the boosters off the launch pad.
Two more options added to ULA’s rocket naming poll
Fans of classical mythology and the fictional Star Trek universe can vote for two new candidates as the name of United Launch Alliance's next generation rocket, with Vulcan and Zeus joining three other options in an online poll revealed earlier this week.
Photos: More shots of Delta 4 liftoff
The United Launch Alliance Delta 4 rocket roars off the pad with the Global Positioning System 2F-9 satellite. Photos by ULA.
Recap story: New bird flies for GPS navigation network
Climbing away from Earth on the power of its liquid hydrogen-fueled main engine and twin solid rockets, a Delta 4 booster successfully launched a new Global Positioning System satellite Wednesday to benefit U.S. military operations and civilian society as a whole.
Photos: Delta 4’s foggy launch
The 721,000-pound United Launch Alliance Delta 4 rocket launches on-time at 2:36 p.m. EDT Wednesday into a deck of low-hanging clouds over Complex 37 at Cape Canaveral Air Force Station carrying the GPS 2F-9 navigation satellite.
VideoVideo: Delta 4 lifts off
A United Launch Alliance Delta 4 rocket was launched on-time today at 2:36 p.m. EDT carrying a new Global Positioning System spacecraft to advance the navigation network with every launch.
Live coverage: Delta 4 rocket launches with GPS satellite
A United Launch Alliance Delta 4 rocket lifted off Wednesday at 2:36 p.m. EDT (1836 GMT) from Cape Canaveral on a mission to place into orbit a fresh satellite for the Global Positioning System.
Photos: Delta 4 awaits blastoff
The United Launch Alliance Delta 4 rocket sits peacefully inside its mobile service gantry on Tuesday afternoon, one day before its scheduled launch of the GPS 2F-9 navigation satellite.
ULA wants you to help pick name of new rocket
Eagle? Freedom? GalaxyOne? United Launch Alliance wants public input in the naming of a next-generation launcher designed to replace the historic Atlas and Delta rocket lines in the 2020s.
Preview: 10 months, 4 launches to finish GPS Block 2F deployment
The final year of launches in the current breed of Global Positioning System navigation satellites kicks off Wednesday afternoon aboard a Delta 4 rocket from Cape Canaveral.