The first human Mars explorers won’t have it easy. Every additional day in deep space will increase their exposure to deadly ...

Stoke Space successfully hotfired its first-stage rocket engine on a new vertical test stand at the company’s Moses Lake, ...

A prototype ion engine that uses lithium vapor as a propellant has aced its first tests, achieving 25 times more power than ...

Astrobotic completed a successful series of hot-fire tests of its rotating detonation rocket engine prototype, marking a key milestone for the experimental propulsion technology.

NASA Stennis Space Center, sitting in Hancock County, acts as the largest rocket propulsion test site in the United States.

Watch how powerful a SpaceX Raptor engine looks while conducting a long duration test fire at a 15 degree gimbal. Views of ...

SpaceX fired six Raptor engines on the company’s next Starship rocket Monday, clearing a major hurdle on the path to launch later this month on a high-stakes test flight to get the private rocket ...

There has been only one mission of the Artemis program to date, an uncrewed test flight of the Orion spacecraft that was conducted back in 2022. Judging this solely from this perspective, you could be ...

NASA’s Space Launch System appears to have a finite shelf life. The Trump administration wants to cancel it after just three launches, while the preliminary text of a bill making its way through ...

2026 is a big year for SpaceX's Starship, the biggest and most ambitious rocket ever built. The third version of the still-in-development launch vehicle will debut soon (maybe), which will be the ...