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CAPE CANAVERAL, Fla. - At NASA's Kennedy Space Center in Florida, the Press Site countdown clock, so long a familiar a backdrop for space shuttle launches, counts off the seconds since liftoff from Launch Complex 39B of a new vehicle, the Constellation Program's Ares I-X test rocket. The rocket produces 2.96 million pounds of thrust at liftoff and reaches a speed of 100 mph in eight seconds. Liftoff of the 6-minute flight test was at 11:30 a.m. EDT Oct. 28. This was the first launch from Kennedy's pads of a vehicle other than the space shuttle since the Apollo Program's Saturn rockets were…
