The engines were built by L3Harris and sent for integration with the SLS rocket's core stage.

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 ...

NASA has installed all four RS-25 engines onto the Artemis II Space Launch System core stage, completing a major assembly milestone for the first crewed lunar mission since the Apollo era. Built at a ...

The second RS-25 engine has been attached to the core stage for NASA’s Space Launch System (SLS) rocket for the agency’s Artemis missions. Engineers and technicians at NASA’s Michoud Assembly Facility ...

The first of four RS-25 engines that will power NASA’s Artemis III mission has arrived inside the Vehicle Assembly Building at Kennedy Space Center in Florida, the agency announced Thursday.

Add Yahoo as a preferred source to see more of our stories on Google. NASA tests RS-25 engine No. 20001 on Friday, at the Fred Haise Test Stand at NASA’s Stennis Space Center at Bay St. Louis, ...

NASA’s Space Launch System (SLS) is ready to fly with its four shuttle-era engines. The rocket, outfitted with the RS-25 engines, recently passed a critical milestone that put the integrated system to ...

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 ...

NASA is heading back to the moon, and it's planning to use the long-delayed Space Launch System (SLS) to get there. The agency is working to assemble the first SLS rocket, which will be the most ...