NASA has installed all four RS-25 engines onto the Artemis II Space Launch System core stage, completing a major assembly ...

NASA's Artemis II mission will launch with SLS rocket engines that have flown multiple times on past space shuttle missions.

A Canoga Park company’s rocket engines will provide the powerful thrust that sends the astronauts of Artemis II on an ...

It is business as usual as NASA engineers prepare for an upcoming RS-25 rocket engine test at Stennis Space Center. They are well-versed on all of the pre-test work to be done, having conducted a very ...

"We start building the engines from the raw material," Mark Aldaba told NBC Los Angeles, walking through the machining, ...

NASA is all about reusing leftover hardware from previous space programs because it helps it save time and money on the new ones. But in few such cases was NASA as good at doing that than it is in the ...

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

Pratt & Whitney Rocketdyne successfully completed the Design Certification Review for the upgraded RS-68A engine configuration, demonstrating -the world’s most powerful hydrogen-fueled engine has met ...

It’s time to gather around a digital fire and celebrate the holidays in style with a Yule log video. But this isn’t just any old Yule log. The official NASA Yule log video stars four RS-25 rocket ...