caption NASA is modifying and testing space shuttle engines for use on its new Space Launch System mega-rocket. source NASA Stennis Space Center NASA is building the most powerful rocket in history, called Space Launch System (SLS). The new rocket will use retrofitted space shuttle engines to send people to the moon, Mars, and beyond. NASA recently test-fired one modified RS-25 space shuttle engine at “113% thrust” to observe its behavior for SLS. The first SLS mission is supposed to fly a space capsule around the moon, but the program is behind schedule and ballooning in cost. NASA fired up a rocket engine pulled from a space shuttle on Wednesday – then cranked the power up to 11. But this hot fire, as such rocket engine tests are known, wasn’t done out of nostalgia for the space shuttle program, which retired in July 2011. The purpose was to see how the engine, known as an RS-25, behaved after NASA modified it to power a brand-new mega-rocket called the Space Launch System (SLS). caption One of NASA’s RS-25 rocket engines being trucked out to a test-firing mount in Mississippi. source NASA SLS is a 321-foot-tall rocket that will outperform the Saturn… Read full this story
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