Shuttle Crew's Dress Rehearsal

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The crew of the space shuttle Discovery is getting in some practice before game time.

The seven astronauts are in Florida for several days of dress rehearsal to prepare for their launch in December. The astronauts will practice emergency escapes, shuttle landing and counting down to launch.

The 12-day mission on Discovery will take them to the international space station.

Meanwhile, in New Orleans, NASA officials are reviewing the design of an external fuel tank. Shuttle flights have been plagued with foam breaking free from the fuel tank.

That's what caused the shuttle Columbia tragedy in 2003. A piece of foam struck the shuttle's wing and left a gash that let fiery gases into the spacecraft. Seven astronauts were killed in that accident.