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 ...

The powerful Vulcan rocket has launched on its second-ever national security spaceflight in what will be the biggest test yet for an up-and-coming spacecraft. Launching atop a staggering 3 million ...

The Brunswick-based startup is marketing its non‑toxic, bio‑derived fuel and a patent‑pending oxidizer system as an ...

The latest test of a next-generation rocket booster for NASA’s Artemis moon program ended with a violent structural failure, abruptly cutting short what was supposed to be a carefully choreographed ...

United Launch Alliance's Vulcan rocket is preparing for its fourth launch and second national security mission. The upcoming mission will carry the rocket's heaviest payload to date on its ...

The United Launch Alliance is planning for the Vulcan to become its workhorse rocket. It faces its biggest test yet in its next launch.

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 ...