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 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 ...

Teams at NASA’s Stennis Space Center deliver, lift, and install the first new production RS-25 engine on the Fred Haise Test Stand on Feb. 18. Credit: NASA/Danny Nowlin NASA’s Stennis Space Center ...

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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, ...

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 ...