Add Yahoo as a preferred source to see more of our stories on Google. The powerful Vulcan rocket faces its biggest test yet as it prepares to launch on its second national security spaceflight from ...

On June 30, at Blue Origin’s West Texas test facility, a BE-4 rocket engine experienced a catastrophic failure during a firing sequence. Approximately ten seconds into the test, the engine detonated, ...

United Launch Alliance (ULA) is gearing up for a long-awaited comeback, returning to secretive payload lifts for the National Security Space Launch program with its heavy-lift Vulcan Centaur rocket.

While the mission is expected to launch this year, a date is yet to be announced.

United Launch Alliance knocked out its first Vulcan Centaur launch of the year on Tuesday night, and its first ever for the Space Force. The company's new workhorse rocket lifted off on the USSF-106 ...

After years of delays, United Launch Alliance is set to launch its first military mission on the new heavy-lift Vulcan rocket next week. The mission, USSF-106, will send into geostationary-Earth orbit ...

The US Space Force is still dealing with the near-term implications of the second grounding of United Launch Alliance’s Vulcan rocket in less than two years. The experience is likely to influence how ...

Amazon says it has enough satellites in orbit to begin initial broadband service at mid-latitudes later this year.

NASA has performed a rocket switcheroo and will launch its SunRISE mission on a SpaceX Falcon Heavy instead of the United ...

The sight of United Launch Alliance’s Atlas V rocket has flown for the last time in its most powerful configuration. The rocket, sporting five boosters, launched at 12:30 a.m.

A United Launch Alliance (ULA) Vulcan rocket is preparing to launch USSF-106 for the U.S. Space Force at Space Launch Complex-41 at Cape Canaveral Space Force Station, Florida. This will be Vulcan’s ...

Update: The United Launch Alliance has put out a statement declaring the mission a success and indicating plans to investigate an anomaly observed early in the flight on the solid rocket boosters. The ...