NASA test-fires SLS rocket engine in Mississippi

An RS-25 rocket engine was test-fired at NASA's Stennis Space Center in Mississippi on Aug. 5, 2021.

Credit: NASA Stennis Space Center

[GarageSupra]

so rad, this thing litterraly makes clouds. Also incredible is the fuel goes. from freezing cold to unbelievably hot in microseconds to create thrust. Chemistry bois

[BrianMillerCEO]

Would be cool to see a thermal camera on the engine and nozzle.

[RushworthRob]

I guess those locking pins will be safe to go to Mars now... tested!

[UncleKennysPlace]

Meanwhile, SpaceX did a test stack on the largest rocket ever made.

[huntera]

So awesome. The Stennis facility has served NASA and America really well.

[Rotatinhatin]

The shit humans can create when they come together…🙌🏾👏🏾🔥🔥❤️

[anthalas]

So these are the exact same engines that the space shuttle used. The tech is over 40 years old. So why do they need all this testing. The whole reason the SLS was to use the old shuttle engines was so they could save time by not having to design and test a new engine.

[chickenhunt]

So sad these will just be thrown away in the ocean

[SupraNaturalTT]

The thing that amazes me is how powerful the flow of the fuel pumps are to supply enough fuel for the engines🤯

[dakotapicou]

tell me again why we are testing on an engine we have flown how many times now on space shuttle?

[CJ_]

I'm amazed that the building doesn't just get torn apart and implode

[paulmurphy]

Aren't they the shuttle engines?have they not been test fired enough?

[SupraNaturalTT]

Serious question not that anyone should be in the rocket nozzle are where you can see stairs and gantries, would it be possible to walk around while the engine is going since the pressure wave would be down stream of the thrust? Of course with insane amount of hearing protection.
Wonder what that would look like being about to see it up close and personal 😃.

[darcyhildebrand]

Gee, maybe this means NASA may actually attach it to something that actually can fly into space within the next several decades. Meanwhile, Space X will be landing on Pluto.

[windowboy]

How much $$$ per second in fuel was used?

[bravo-]

That is so old school. Just look at SpaceX.

[Prometheushighaf]

That's me when I blow out a bong rip

[edwardlecore]

There's something reassuring about Nasa's habit of doing full duration burns.

[eagleviewhd]

SpaceX made history today when they stacked second stage on to the super heavy first stage! The most powerful racket ever built. Look forward to watching it launch soon! While NASA is still, playing with outdated technology!

[hoimaoilcitylifestyle]

We need that smoke in Mars, for green houses 😳