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NASA's next-generation, five-segment solid rocket development motor -- or DM-2 -- is fully assembled in its test stand at ATK in Promontory, Utah. Prior to test firing, the motor's overall temperature will be lowered to 40 degrees Fahrenheit to validate the motor's performance in cold weather. DM-2 is targeted for September 2010. (Credit: ATK)
NASA's next-generation, five-segment solid rocket development motor -- or DM-2 -- is fully assembled in its test stand at ATK in Promontory, Utah. Prior to test firing, the motor's overall temperature will be lowered to 40 degrees Fahrenheit to validate the motor's performance in cold weather. DM-2 is targeted for September 2010. (Credit: ATK)