Watch Crews Add RS-25 Engines to NASA Artemis II SLS Rocket

Artemis II reached a significant milestone as teams fully installed all four RS-25 engines to the 212-foot-tall core stage for NASA’s SLS (Space Launch System) rocket at NASA’s Michoud Assembly Facility in New Orleans. During Artemis II, the four engines, arranged like legs on a chair at the bottom of the mega rocket, will fire for eight minutes at launch, producing more than 2 million pounds of thrust to send the Artemis II crew around the Moon. Boeing is the lead contractor for the SLS core stage. Aerojet Rocketdyne, an L3Harris Technologies company, is the lead contractor for the SLS engines. NASA’s Marshall Space Flight Center in Huntsville, Alabama, manages the SLS Program and Michoud.
For more information about SLS, visit www.nasa.gov/sls.
#Artemis #NASA #SLS #SpaceLaunchSystem #NASASLS #Astronauts #Moon #RocketScience

[@jaytc3218]

Godspeed, Capricorn One!

[@meltdown7259]

Wow nasa

[@yoskarokuto3553]

( apollo 11 press conference ) watch this more EXCELLENT

[@bigjim9640]

big rocket very jumbo jim you got thherre

[@gouravmisra2317]

WATCHING FROM INDIA SIR 🎉🎉 EXCELLENT 👌👌

[@IbnBahtuta]

Fingers crossed then.

[@thickdickwad7736]

0:58 who’s this cutie? 🥰

[@danielweaver7435]

Nice nasa

[@dakotapicou]

I've got to say... it is horrible to see these historic flown engines designed to be reused ,wasted after tis last use instead of being preserved in the shuttles they once propelled. Current ones only have mock-ups.

[@brokensoap1717]

There are flown RS-25 engines on display at various locations, just not the Block 2 engines that SLS is using.
To me personally, it isn't a big deal.
NASA couldn't afford to develop a new engine and they had dozens flight proven and human rated ones just sitting around after the Shuttle program.
SLS isn't the first rocket to expend it's core stage engines after every flight.

[@HebaruSan]

It's a valid objection, but the STS has been retired for 12 years now. How long do you want these specific engines to be kept operational? Forever?

[@gautamnatrajan1990]

Each of these engines cost more than a Falcon Heavy launch!

[@brokensoap1717]

Each Falcon Heavy costs 120-350 million, depending on the customer and configuration.
That is not the unit cost to produce even the older SSMEs initially used on SLS, much less the production restart ones.
A lot less parts and labor hours needed to produce each engine with those, 30% less than the older SSMEs.
For reference those have been estimated to cost ~90 million adjusted for inflation, the new engines are being built with 30% cost savings compared to those.

[@vectrexer]

It's sad and expensive these engines, made to fly many times. are being turned into "paper cups" to be discarded after only a single flight.

[@jaredolar9879]

These engines weren't being used any more. They'll be used one more time for something glorious. The new RS-25s now being made are designed not to be reusable, since with Artemis mission profiles, recovery and refurbishment bring no cost savings but rather increases costs.

[@java4653]

You really don't understand this mission or how space travel actually works. Elon Musk has created a generation of space brats.

[@woodsie315]

It's a means to an end at this point. SLS is the only man rated rocket that can take us to the moon in the near term so it's what we've got.
I just hope they can find a way to bring the cost down to make it more viable long term.