Ares I-X test rocket launched
With more than 12 times the thrust produced by a Boeing 747 jet aircraft, the Constellation Program's Ares I-X test rocket roars off Launch Complex 39B at NASA's Kennedy Space Center in Florida Oct. 28, 2009. The rocket produces 2.96 million pounds of thrust at liftoff and goes supersonic in 39 seconds. (NASA photo/Jim Grossmann)

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