Watch when SpaceX conducted a static fire test of a single flight 10 Starship engine to simulate an in-space burn. Credit: ...

NASA fired up RS-25 engine No. 20001 at the Fred Haise Test Stand at NASA’s Stennis Space Center at Bay St. Louis, ...

Sierra Space has successfully completed the test campaign for the company’s fully integrated VR35K-A upper stage engine, under contract with Air Force Research Laboratory’s (AFRL), Rocket Propulsion ...

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 ...

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 ...

June 23 (UPI) --NASA fired up a full-duration test of its new RS-25 engine that will power the Space Launch System rocket on Artemis missions to the moon, the space agency announced Monday. NASA ...

Sierra Space completed a test campaign on Vortex 35,000 lbf liquid engine designed for upper-stage applications. Credit: Sierra Space WASHINGTON — The U.S. Air Force awarded Sierra Space a $16 million ...

India's heaviest operational rocket is getting a boost, with a key engine test paving the way for more demanding missions.

Space startup Astrobotic put its rotating detonation rocket engine (RDRE) to the test for the first time, demonstrating a potentially groundbreaking technology that generates thrust by supersonic ...