The future of NASA's moon program may be in doubt, but that didn't stop the agency and aerospace company ATK Aerospace Systems from testing on Tuesday the most powerful solid-fuel rocket engine ever built. The five-segment DM-2 rocket booster, designed as the first stage of the Ares I rocket to provide lift-off thrust for the next generation of Orion spacecraft, was given a two-minute non-flight test in Utah, and more than 760 on-board measurement devices showed the motor's performance had met all expectations.

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