Artemis Moon Rocket Launches Tomorrow

[BushMasterBoy]

The egg failure was definitely a "loss of coolant " event. The SLS is experiencing the same anomaly.
The engines are fed liquid hydrogen to cool them preflight and also post launch. The fuel is the coolant. The nozzles have 1080 tubes of liquid hydrogen flowing through them before ignition. Video below is a silly, but close enough analogy of the system.

https://spacenews.com/nasa-continues...-launch-scrub/

"Controllers scrubbed the launch when they were unable to resolve a hydrogen bleed line issue with one of four RS-25 engines in the core stage. The bleed is designed to flow hydrogen into the engines to condition them thermally for flight. For three of the engines, the bleed was working as planned, cooling the engines to the required temperature, but for the fourth, designated engine #3, it did not cool down sufficiently."

[BushMasterBoy]

Now the rocket has a leak. So no launch today!

https://news.yahoo.com/nasa-fuels-mo...110132349.html

[Gman]

They seem to be way behind and are rushing forward to catch up and making a mess of it, IMO.

[eddiememphis]

How hard is it to launch a rocket?

A million drunk hillbillies do it every July.

1. Light fuse.
2. Get away.

[BushMasterBoy]

Here, hold my beer...

[electronman1729]

Herr is a sad fact, one SLS has cost equavlent to one third of Apollo and Gemini combined.

[flogger]

It is an expensive HUGE project, best to side on caution and check it out than take the chance a failure, especially since the whole world is watching!

Problem is, they might need to 'hanger' the thing to work on it. Next 2 week launch windows are mid Sept. and mid Oct. from what I have heard. One of the important variables of launch time is calculating an Earth re-entry, upon mission end, during daylight.
I can't even imagine the pressure on these gals/guys/geeks who work on or are responsible for this thing, good luck and I know you can make it happen. Take your time.

[Joe_K]

I anticipate the failure. Challenger all over again. Just more fake NASA stuff to distract the masses.

[sroz]

I anticipate the failure. Challenger all over again. Just more fake NASA stuff to distract the masses.

[BushMasterBoy]

The main booster is made from leftover Space Shuttle parts. Strapping solid rocket boosters to big tanks of hydrogen and oxygen seems a recipe for disaster. Last I heard the engine temp sensor had an anomaly. Then an 8 inch hydrogen breakaway fuel line has a seal leaking. I was hoping for a trouble free launch.