NASA has conducted the first in a planned series of 12 ground-test firings to certify the upgraded Aerojet Rocketdyne RS-25 engine for the core stage of the Space Launch System (SLS) rocket. SLS is to ...

The new-and-improved RS-25 engine blasted its way through the hot-fire test, which ended sooner than expected. Reading time 2 minutes The crewed Artemis 5 mission to the Moon won’t happen until 2028 ...

NASA is set to kick off a series of tests to ensure the updated RS-25 engine is ready and reliable for powering the SLS megarocket. Reading time 3 minutes NASA is gearing up to start a crucial series ...

NASA performs an RS-25 rocket engine hot fire test on Jan. 17. Credit: NASA Test personnel at NASA’s Stennis Space Center have successfully conducted the fourth in a second round of 12 ground test ...

NASA kicked off the final certification series for its Artemis moon-rocket engines with a dramatic "hot fire" test this week. The RS-25 developmental design for engine E0525 passed its first hotfire ...

The latest hot-fire of NASA’s Artemis moon rocket engine at Stennis Space Center was more than a dramatic plume on the Mississippi horizon, it was a proof point that the agency’s heavy-lift strategy ...

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Things have been going swimmingly at NASA of late. On top of the triumph that was NASA's Pluto fly-by last month (New Horizon got a nice haul from that, collecting data that will take months to ...

NASA has completed a 535-second test of its Space Launch System (SLS) RS-25 rocket engine to collect engine performance data. The test was conducted at NASA’s Stennis Space Center near Bay St. Louis, ...

Engineers are getting ready to put the pressure on hardware for the world’s most powerful rocket, NASA’s Space Launch System, as part of a rigorous test series to ensure each structure can withstand ...

NASA is set to test the SLS engine a sixth time with a 535 second burn, and you can watch it live. Share on Facebook (opens in a new window) Share on X (opens in a new window) Share on Reddit (opens ...

NASA kicked off the final certification series for its Artemis moon-rocket engines with a dramatic "hot fire" test this week. NASA will begin using repurposed RS-25 space shuttle engines to fly ...