And they're off...Good luck!

CAPE CANAVERAL, Fla. (AP) -- Discovery and seven astronauts blasted off Tuesday on America's first manned space shot since the 2003 Columbia disaster, ending a painful, 2 1/2-year shutdown devoted to making the shuttle less risky and NASA more safety-conscious.

At stake were not only the lives of the astronauts, but also America's pride in its technological prowess, the fate of the U.S. space program and the future of space exploration itself.

"Our long wait may be over. So on behalf of the many millions of people who believe so deeply in what we do, good luck, Godspeed - and have a little fun up there," launch director Mike Leinbach told the astronauts right before liftoff.

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