Seventh RS-25 Test Fire of 2015 Closes Out First SLS Main Engine Test Series

The RS-25 engine fires up for a 535-second test Aug. 27, 2015 at NASA's Stennis Space Center near Bay St. Louis, Mississippi. This is the final in a series of seven tests for the development engine, which will provide NASA engineers critical data on the engine controller unit and inlet pressure conditions. Credits: NASA

The RS-25 engine fires up for a 535-second test Aug. 27, 2015 at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. This is the final in a series of seven tests for the development engine, which will provide NASA engineers critical data on the engine controller unit and inlet pressure conditions. Credits: NASA

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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 for NASA's Space Launch System, upgraded to meet the new requirements for what will become the most powerful rocket in history. Photo Credit: Mike Killian / AmericaSpace

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 for […]

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, Mississippi. 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 Launch System. Credits: NASA/Stennis

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 Launch […]

NASA to Test Orion's European Service Module Starting This Summer

From ESA: "Proposal for a Multi-Purpose Crew Vehicle-Service Module (MPCV-SM)." Orion's European service module will fly on Exploration Mission-1 (EM-1) in late 2018. Image Credit: ESA-D. Ducros

From ESA: “Proposal for a Multi-Purpose Crew Vehicle-Service Module (MPCV-SM).” Orion’s European service module will fly on Exploration Mission-1 (EM-1) in late 2018. Image Credit: ESA-D. Ducros

NASA continues to ramp up its development of its newest crewed space vehicle and launch system, the Orion Multi-Purpose Crew Vehicle (MPCV), which will be powered by […]

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

RS-25 development engine test fire at Stennis Space Center near Bay St. Louis, Mississippi. 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 Launch System. Credits: NASA/Stennis

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 the […]

SLS Main Engine Test Fire Round Two Ignites With 450-Second Burn at Stennis Space Center

A billowing plume of steam signals a successful 450-second test of the RS-25 rocket engine for NASA's Space Launch System (SLS) on May 28 at NASA's Stennis Space Center near Bay St. Louis, Mississippi. Photo Credit: NASA

A billowing plume of steam signals a successful 450-second test of the RS-25 rocket engine for NASA’s Space Launch System (SLS) on May 28 at NASA’s Stennis Space Center near Bay St. Louis, Miss. Photo Credit: NASA

NASA’s Space Launch System (SLS) rocket is quickly manifesting into reality. Its solid rocket booster was test […]

NASA Presses on With SLS Development as Launch Vehicle Undergoes Critical Design Review

From NASA: "Artist concept of NASA's Space Launch System wireframe design. The SLS Program is kicking off its critical design review May 11 at NASA's Marshall Space Flight Center in Huntsville, Alabama." Image Credit: NASA/MSFC

From NASA: “Artist concept of NASA’s Space Launch System wireframe design. The SLS Program is kicking off its critical design review May 11 at NASA’s Marshall Space Flight Center in Huntsville, Alabama.” Image Credit: NASA/MSFC

NASA’s Space Launch System (SLS) Program, designing NASA’s next heavy lift launch vehicle intended to carry spacecraft and astronauts […]

Critical Year for SLS Development Continues With Base Heating Tests

From NASA: “A two-percent scale model of the Space Launch System core stage RS-25 engines, in the pictures at left, and a model of the SLS without the twin boosters is used for nominal, core-stage-only testing at CUBRC Inc. in Buffalo, New York.” Image Credit: NASA/MSFC

NASA is taking further steps bringing the agency […]

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 nicely […]

SLS Core Stage Test Welds Begin at NASA’s Welding Wonder in Michoud

A ring and barrel recently loaded onto the Vertical Assembly Center at NASA’s Michoud Assembly Facility in New Orleans. The tool is being used to perform confidence welds prior to welding together the first SLS core stage tanks. Credit: NASA/Michoud

MICHOUD ASSEMBLY FACILITY, NEW ORLEANS, LA — The first pieces of rocket hardware have been […]