Tag: Green Run
-
Stacking complete for SLS boosters
The twin solid rocket boosters for the Artemis 1 mission are stacked on the SLS Mobile Launcher inside High Bay 3 of the Vehicle Assembly Building. Credit: NASA/Isaac Watson The twin 177-foot-tall (54-meter) solid-fueled boosters for the first flight of NASA’s Space Launch System have been stacked inside the Vehicle Assembly Building at the Kennedy…
-
Second prevalve issue delays completion of SLS Core Stage Green Run campaign
A problem with another one of the eight prevalves in the Artemis 1 Core Stage for NASA’s Space Launch System (SLS) has postponed a second test-firing to wrap up the Green Run campaign. The SLS Program’s first flight article has been installed in the B-2 Test Stand at the Stennis Space Center in southern Mississippi…
-
Stuck propulsion valve delays second SLS test-firing
One of the SLS core stage’s four RS-25 engines during a wet dress rehearsal in December. Credit: NASA A troublesome liquid oxygen valve on the Space Launch System’s first flight-rated core stage will keep NASA from performing a second test-firing of the rocket’s four main engines this week. NASA hoped to conduct the second hotfire…
-
NASA, Boeing adjusting SLS Core Stage parameter limits for second Green Run firing
In parallel with vehicle and test stand preparations for a second Green Run Hot-Fire test later in February, the NASA Space Launch System (SLS) Program and Core Stage prime contractor Boeing are reviewing rule changes for the full, eight-minute firing. The Core Stage hardware and software executed the first-ever final countdown, engine start, and “plus…
-
NASA decides to redo SLS Green Run Static Fire
As expected, but now official, NASA has announced the decision to redo the Green Run Hot-Fire test of the agency’s Space Launch System (SLS) Core Stage at the Stennis Space Center in Mississippi. The Core Stage was fired for 67 seconds on January 16 in the B-2 Test Stand at Stennis before the test was…
-
Hydraulic system issue triggered early engine shutdown during SLS test-firing
An exhaust plume erupts from the B-2 test stand during a test-firing of the Space Launch System core stage Jan. 16. Credit: NASA/Robert Markowitz NASA officials said Tuesday the weekend test-firing of the Space Launch System moon rocket’s core stage was cut short by an out-of-limits parameter in a hydraulic system for gimbaling, or vectoring,…
-
NASA studying cause of early end to moon rocket test-firing
The Space Launch System’s four RS-25 engines fire during an abbreviated Green Run test Saturday. Credit: NASA A critical test-firing of NASA’s Space Launch System moon rocket in Mississippi ended just 67 seconds after it began Saturday, well short of a planned eight-minute burn that was supposed to clear the way for the space agency…
-
Live coverage: SLS core stage engines shut down early during critical hotfire test
Live coverage of the Green Run Hot Fire test of NASA’s Space Launch System core stage at the Stennis Space Center in Mississippi. Text updates will appear automatically below. Follow us on Twitter. Editor’s Note: NASA TV’s live video coverage of the SLS hot fire test begins at 3:20 p.m. EST (2020 GMT) Saturday.
-
NASA SLS Core Stage aborts high-stakes Green Run static fire
NASA’s Space Launch System (SLS) program and Core Stage prime contractor Boeing were ready for the big moment of the rocket’s Green Run campaign and the biggest moment in the 10-year old program, a static firing of the stage. After a year of test cases at the Stennis Space Center in Mississippi, visits from hurricanes,…
-
Video: SLS core stage test-firing ends early
The four RS-25 engines at the bottom of NASA’s first Space Launch System core stage shut down about a minute into a ground test-firing Saturday that was supposed to last more than eight minutes. The four Aerojet Rocketdyne-built engines ignited at 5:27 p.m. EST (2227 GMT) Saturday on the B-2 test stand at NASA’s Stennis…