
At 11:27 a.m. EDT, flame blasted into a dusty Utah hillside from the five-segment solid rocket booster, sending black smoke billowing into the air as if from a volcanic eruption.

Although the Constellation program's Ares I rocket may never be built, NASA and ATK says understanding the booster's performance will be useful to designs of a heavy-lift rocket.

Test managers initially reported that the test bay area appeared "nominal" after the firing. A test conductor said there appeared to be some gas on the north side of the motor.

The booster had been chilled to 40 degrees Fahrenheit to test the solid motor's performance at low temperature.
IMAGES: Courtesy of NASA TV.
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