SLS Development RS-25 Engine Ignites for Successful Full Duration Test Fire #6

The world’s most efficient rocket engine came to life again today, unleashing 512,000 pounds of thrust and a thunderous roar across southern Mississippi and NASA’s Stennis Space Center during a 535-second full power test fire. The same engine that powered the space shuttle so reliably for years, the RS-25, will again be employed […]

SLS Development Engine Test Fire #4 Ignites With Longest Duration Firing Yet

RS-25 development engine test fire at Stennis Space Center near Bay St. Louis, Miss. Yesterday’s test fire, the fourth in the first series of seven planned test fires, ran for 650 seconds, the longest SLS RS-25 test fire yet. Four RS-25 engines will power the core stage of NASA’s new rocket, the Space […]

NASA and Aerojet Fire Up Stennis With Full Duration SLS Engine Test Fire #3

The RS-25 engine fires up at the beginning of a 500-second test June 11 at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. Four RS-25 engines will power the core stage of NASA’s new rocket, the Space Launch System. Credits: NASA/Stennis

NASA and Aerojet Rocketdyne fired up their RS-25 development engine for […]

Stennis Space Center Roars to Life With First NASA SLS Development Engine Test Fire

The first of eight tests for the SLS development engine, which will provide NASA engineers with critical data on the engine controller unit and inlet pressure conditions. Four RS-25 engines will power SLS on future missions, including to an asteroid and ultimately to Mars. Photo Credit: NASA

The new year has kicked off […]