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NASA fires shuttle rocket engine to the max

Rocket engine firing
Exhaust billows out from a rocket test tower at NASA’s Stennis Space Center during a test firing of an RS-25 rocket engine. (NASA via YouTube)

Like a “Spinal Tap” guitarist, NASA turned the dial up to 11 today on a souped-up rocket engine from the bygone space shuttle program.

The 260-second engine firing at Stennis Space Center in Mississippi represented the toughest test yet for hardware that’s destined to go on the Space Launch System, NASA’s heavy-lift rocket.

NASA plans to use sets of Aerojet Rocketdyne RS-25 rocket engines left over from the shuttle program in the main propulsion systems on the first four SLS rockets, four at a time. Fourteen of the 16 hydrogen-fueled engines were previously installed on the shuttle orbiters, which were retired in 2011 and are now on display in museums.

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By Alan Boyle

Mastermind of Cosmic Log, contributing editor at GeekWire, author of "The Case for Pluto: How a Little Planet Made a Big Difference," president of the Council for the Advancement of Science Writing. Check out "About Alan Boyle" for more fun facts.

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