The final launch! Weather permitting, United Launch Alliance's massive Delta IV Heavy rocket should be visible from Treasure ...

The certification process, which began in 2016, was no easy feat. Vulcan had to clear 52 criteria, 18 critical subsystem ...

Both of the currently active ULA launch vehicles are beginning to phase out, to be replaced by Vulcan. Just five Delta IV Heavy launches remain on the manifest, all NRO launches procured under the ...

Vulcan flew twice in 2024 but the second mission had a rough ride to space. Those problems are the primary culprit behind delay of certification that would allow use for national security launches.

Six total boosters increase payload mass to LEO to 27,400 kg, more than any Atlas V and slightly less than the Delta IV Heavy, which offers 28,370 kg to LEO. Vulcan’s Centaur V upper stage will ...