NASA’s largest rocket element, the core to its Space Launch System Rocket has fired four RS-25 engines for 8 minutes and 19 seconds on Thursday at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. The successful test is a key milestone ahead of the agency’s Artemis I mission, will send a crewless Orion spacecraft on a test flight around the Moon and back to Earth that paves the way for future Artemis missions with astronauts.
“The SLS is the most powerful rocket NASA has ever built, and during today’s test the core stage of the rocket generated more than 1.6 million pounds of thrust within seven seconds. The SLS is an incredible feat of engineering and the only rocket capable of powering America’s next-generation missions that will place the first woman and the next man on the Moon,” said acting NASA Administrator Steve Jurczyk. “Today’s successful hot fire test of the core stage for the SLS is an important milestone in NASA’s goal to return humans to the lunar surface – and beyond.”
NASA’s previous test of the SLS core stage on Jan 16 as the four R-25 engines fired for one minute before the test ended earlier than anticipated. “This longer hot fire test provided the wealth of data we needed to ensure the SLS core stage can power every SLS rocket successfully,” said John Honeycutt, manager for the SLS Program at NASA’s Marshall Space Flight Center in Huntsville, Alabama. “During this test, the team conducted new operations with the core stage for the first time, repeated some critical operations, and recorded test data that will help us verify the core stage is ready for the first and future SLS flights for NASA’s Artemis program.”
“Today is a great day for NASA, Stennis and this nation’s human space exploration program. This final test in the Green Run series represents a major milestone for this nation’s return to the Moon and eventual mission to Mars,” said Stennis Center Director Richard Gilbrech. “So many people across the agency and the nation contributed to this SLS core stage, but special recognition is due to the blended team of test operators, engineers, and support personnel for an exemplary effort in conducting the test today.”