Yup, The Space Shuttle Engines Still Work 

Yup, the Space Shuttle Engines Still Work

The Space Launch System that will one day take us to Mars is a serious beast made up of four leftover space shuttle engines. Of course, before the engines are strapped together and aimed into the sky, they have to be tested. And that involves some fireworks.

The first RS-25 engine that will actually take flight had a successful test in Mississippi this week, burning for 500 seconds without incident. It was last used five years ago to power Endeavour into orbit, one of the last shuttle missions before the program was shut down.

Engineers won't know if everything is working perfectly until they review the engine and the data from the test fire, but the first indication -- that giant cloud of smoke -- is very good indeed.

[NASA via Ars Technica]



    That's actually not smoke. It's steam. The RS-25 engine uses liquid hydrogen and liquid oxygen, which combine to form water and release energy.

    Last edited 12/03/16 6:56 am

      True its steam... but not all of it is comming from the hydrogen and oxygen burning... they also have water streams to protect the building (burning and sound protection). so most of it is water being boiled by the rocket engines.

    and here they are blaming us and our Fucking 'Lambs' for causing HOLES IN THE OZONE
    might want to re-think that one before next round-up of nations to discuss GLOBAL WARMING issues?

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