United Launch Alliance

Trio of launch providers is awarded a total of 54 national security spaceflight missions over about five years.

Class of 2024 includes scientists and performers.

The companies that jointly operate United Launch Alliance are in talks to sell their rocket business to Sierra Space, according to a report.

Starliner’s crew flight test (CFT) is the first time the capsule has carried humans and is intended to be its final mission before NASA moves to certify it for service.

The semireusable space capsule has a new launch target after yet another issue postponed its first crewed flight to Wednesday at the earliest.

Starliner crews are contending with what NASA describes as a ‘design vulnerability’ that could prevent the spacecraft from performing a deorbit burn.

The postponement marks the fifth delay to the long-awaited mission, which would be the first time humans have flown on Starliner.

An issue with the relief valve on the upper stage of the Atlas rocket prompted the decision about two hours before the scheduled launch from Cape Canaveral.

Delta IV Heavy played a key role in U.S. space initiatives, launching Martian rovers, ‘sun-touching’ probes, and a bevy of other cargo into space.

Despite the failure to land on the moon as planned, NASA said four out of five of its payloads on Peregrine were able to collect data in flight.