With the completion of another single-engine RS-25 development test, Aerojet Rocketdyne is now refurbishing five engines at the Stennis Space Center in Mississippi for their next use. After the second ...

The RS-25 engine test team at NASA’s Stennis Space Center in Mississippi ran the next hot-fire test in the A-1 test stand on Tuesday afternoon. The third test-firing in a series of nine continues the ...

With NASA Administrator James “Jim” Bridenstine in attendance, Aerojet Rocketdyne marked a significant milestone in efforts to reduce costs on the RS-25 engine that powers NASA’s new rocket, the Space ...

Weirdly enough, the most powerful space rocket NASA has ever designed is powered by engines born more than four decades ago: the Space Launch System (SLS) rocket, the backbone of the Artemis Moon ...

With an eye toward future deep space missions, Aerojet Rocketdyne and NASA today powered up the RS-25 main engine for the agency’s powerful heavy-lift Space Launch System (SLS) to its highest thrust ...

When it comes to rocket engines, one of the most prolific and famous is the RS-25. It's the same rocket engine that would be used for the NASA Artemis moon missions, but the Artemis missions certainly ...