SLS Green Run #2 - NASA Successfully Fires RS-25 Main Engines for 8 Minutes

NASA successfully test-fires SLS's four RS-25 main engines for over 8 minutes. After an early shutdown during the first Green Run Hot Fire test, this successful firing will help certify the core stage for flight and allows it to be shipped to the launch site at Kennedy Space Center for stacking with the rest of the vehicle.

Filmed and edited by Brady Kenniston.

All content copyright to NSF. Not to be used elsewhere without explicit permission from NSF.

SLS Green Run Articles:

[morejolli]

For all the much-deserved sass aimed at SLS, I sure do like to watch rockets do their thing. Even rockets made of pork.

[robnorwood]

Thanks Brady! Must have been exciting riding out an 8 minute earthquake.

[Xolivas]

This success under the belt, I guess it's time to say, "Onward to Artemis I. Space awaits!!!"

[ripsumrall]

Most respect for the RS-25 but SLS is going to feed 4 of them to the fishes! Feels criminal.

[chrisbrzon]

Superheavy BN1 stacked...NASA finally hearing footsteps....and picking up the pace.

[Peyethon]

They need to test these in DFW, we need some rain right now

[peterbondy]

That with the two solid rocket boosters is going to be a beast! Very much looking forward to Artemis I later this year.

Plus the launch of the JWST, Perseverance and Ingenuity on Mars and the orbital flight of Starship! What a year for space exploration 👏🏻👏🏻👏🏻.

[douglasw]

Now if I could only mount them engines in my minivan get places sure would be a blast.

[climbingtiger]

The stream of the SLS test (NOT this video) felt like the director, the person who decides which camera to switch to, was (1) not listening to the audio of the control room so pretty much missed every key point (example, the preburn gimbal test of the engines - JUST as that was announced the view changed to the outside) and (2) was anxious not show anything "bad" so switched away from the engine view when the fire (above engines in insulation?) showed up, switched back and saw it was still there and switched away and NEVER returned to that view - the best view of the engines.

So there was about 7 minutes of steam clouds and 1 minute of engines. Nuts.

BTW - do you remember the countdown? No, neither do I. Who was responsible for getting that into the broadcast? Right, that's the one!

[officiallynmotion]

Wow! I didn't realize how long they would go because I was multitasking but then I read the title. Well done Nasa.

[rayturner]

That's one mighty fine test Stan. You need to visit Stennis, if you can. Rolls-Royce has a nice outdoor engine test stand as well

[kapybara]

For some reason, the SLS doesn't excite me... Don't get me wrong I don't hate it at all, I think it is pretty neat that we are going back to the moon etc, but the rocket itself just makes me feel meh and I don't know exactly why honestly

[paullangford]

ogen + oxygen = steam. They should call the SLS "Steamboat to the moon".

[_Silviu]

We have 2 different approaches:
Space X: Multiple tests performed very fast, with many failures until succes.
NASA: Slower development with fewer tests, but when they test, they don't fail.
So go Space X, go NASA!😁

[DomingoDeSantaClara]

Thats what I want my next car to have.

[wdwerker]

I wanted to see the view inside the stand of the flames coming out of the bell nozzle.

[danielmiller]

This is the world’s biggest white noise machine

[vonpredator]

@1:27 and @8:17 if you look closely can see the gimbaling! ;)

[munshinest]

Just wondering, if NASA is coming back in building their own space crafts or integrating their modules with SpaceX and others? If any body knows the answer. Thanks

[imtheonevanhalen]

"There's NO steam or hot water in my just ordered two of these...."

Is this the S1-C stand in have visited this place