December 5, 2020

ULA’s Delta 4-Heavy rocket still grounded by launch pad problem

October 16, 2020

United Launch Alliance engineers have resolved the problem that triggered an abort of a planned Delta 4-Heavy rocket launch Sept. 30, but the company said Friday it is continuing to evaluate a concern with the launch pad swing arm retraction system at Cape Canaveral. ULA said the Delta 4-Heavy’s mission to launch a classified National Reconnaissance Office spy satellite will be postponed beyond next week.

Crucial first fueling test on tap for SLS core stage later this month

October 9, 2020

If all goes according to plan, engineers in southern Mississippi later this month will load cryogenic propellants into the core stage of a rocket NASA says will launch astronauts back to the moon, exposing its tankage and internal plumbing to extreme operating conditions hundreds of degrees below zero for the first time. The fueling test — a major milestone in its own right — is a precursor to a high-stakes eight-minute test-firing of the Space Launch System’s four shuttle-era main engines planned as soon as November.

Delta 4-Heavy launch aborted at T-minus 7 seconds

October 1, 2020

Another countdown for United Launch Alliance’s next Delta 4-Heavy rocket mission ended without a liftoff Wednesday after a computer sequencer detected a potential problem just before engine ignition.

Live coverage: Delta 4-Heavy countdown halted in final seconds

September 28, 2020

United Launch Alliance scrubbed the launch of a Delta 4-Heavy rocket Wednesday night less than 10 seconds before liftoff from Cape Canaveral, the second such abort suffered by this mission.. The launch of a classified National Reconnaissance Office spy satellite is expected to be delayed at least several more days as engineers assess the cause of Wednesday’s last-minute abort.

ULA targeting Sept. 26 for next Delta 4-Heavy launch attempt

September 17, 2020

United Launch Alliance said Thursday it is targeting Sept. 26 for the next attempt to send a classified U.S. government spy satellite into orbit aboard a Delta 4-Heavy rocket, following an abort Aug. 29 just three seconds before liftoff from Cape Canaveral.

Northrop Grumman ends OmegA rocket program

September 14, 2020

Northrop Grumman says it will not continue development of the OmegA rocket after the U.S. Space Force last month picked United Launch Alliance and SpaceX as the military’s two top launch contractors over the next seven years.

NASA satellite set to conclude successful green propellant demo mission

August 17, 2020

A NASA-funded satellite that launched last year on the third flight of SpaceX’s Falcon Heavy rocket has begun a sequence of thruster firings to begin falling out of orbit after successfully demonstrating the effectiveness of a non-toxic fuel that could fly on future space missions.

Next Delta 4-Heavy launch on schedule for Aug. 26

August 12, 2020

The flight of a United Launch Alliance Delta 4-Heavy rocket set for Aug. 26 from Cape Canaveral continues the Delta rocket family’s countdown to retirement. With five Delta 4-Heavy missions left to launch, ULA’s chief executive Tory Bruno says there are no plans to build more as the company transitions to the next-generation Vulcan Centaur rocket.

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