United Launch Alliance took a week to reset, but on Monday morning was able to send up its second launch of the year aboard a ...

The team initiated operations to secure the vehicle," it stated. ULA had hoped to launch the following day — Friday, March 29, at 1:37 p.m. ET — but it was unsuccessful.

That means the new launch time that was given after Thursday’s scrub —1:37 p.m. ET, Friday — is no more. Weather was also a big concern and threaten the last lift off of the Delta IV Heavy.

SpaceX seeks regulatory permissions to start launching up to 76 Starship rockets per year from Launch Complex 37 at the Space Force installation.

The U.S. Space Force and a Boeing-Lockheed joint venture sent a secret reconnaissance payload to orbit on Tuesday atop a Delta IV Heavy rocket, the last flight of a workhorse launch vehicle brand ...

The Delta IV Heavy Launch vehicle started launching in 2002. All but four of its 16 missions were for the NRO. The penultimate liftoff of the rocket happened in June, launching the NROL-68 mission.

Twelve days later, the triple-core Delta IV Heavy lifted off from Space Launch Complex 37 at 12:53 p.m. EDT with the classified NROL-70 payload. The U.S. military was ULA’s primary customer for ...

Delta IV rockets were created to fulfill the requirements of the U.S. Air Force’s Evolved Expendable Launch Vehicle program, according to the NRO.

The much-anticipated Delta IV Heavy rocket will potentially launch from Cape Canaveral − for the very last time − on Tuesday, April 9, with the launch at 12:53 p.m. EDT, pending range approval.

The Delta program will have spanned more than 60 years from the first launch in 1960 to the final launch this year. The final Delta launch signals ULA’s transition to the new Vulcan rocket.

CAPE CANAVERAL, Fla. — United Launch Alliance teams have set a new target date for the final launch of their Delta IV heavy rocket after a previous attempt was scrubbed late in the countdown ...