RS-25 - Wikipedia
The RS-25, also known as the Space Shuttle Main Engine (SSME), [1] is a liquid-fuel cryogenic rocket engine that was used on NASA 's Space Shuttle and is used on the Space Launch System.
Space Shuttle Main Engine - National Air and Space Museum
Three SSME's plus two Solid Rocket Boosters (SRBs) power the reusable Space Shuttle. Each SSME produces 375,000 lbs of thrust or a total of 1,125,000 lbs and uses liquid oxygen and liquid hydrogen …
History of the Space Shuttle Main Engines - NASA
Jan 6, 2025 · Each Space Shuttle consisted of three Space Shuttle Main Engines. The three SSME’s, in conjunction with the Solid Rocket Boosters, provided thrust to lift the Orbiter off the ground for the …
Rocketdyne RS-25 / Space Shuttle Main Engine / SSME
Built in the United States by Rocketdyne, the RS-25 burns cryogenic liquid hydrogen & liquid oxygen propellants, with each engine producing 1,859 kN (418,000 lbf) of thrust at liftoff.
RS-25 Engine | L3Harris® Fast. Forward.
Four RS-25 engines located at the bottom of the core stage power the rocket on its eight and a half minute climb to space with more than 2 million pounds of thrust. The RS-25 evolved from L3Harris’ …
Space Shuttle Main Engine (SSME) - Sentinel Mission
Dec 6, 2025 · What is the Space Shuttle Main Engine (SSME)? The Space Shuttle Main Engine (SSME) is a liquid-fueled rocket engine that was used on NASA’s Space Shuttle program. It was developed …
The Enduring Legacy of the RS-25 Rocket Engine: Powering ...
Apr 15, 2024 · Summary The RS-25 rocket engine has been a driving force behind America’s space program for over 40 years. From its origins as the Space Shuttle Main Engine to its current role in the …