Discovery's Astronauts Arrive at Kennedy for Prelaunch Activities

All six astronauts for space shuttle Discovery's final mission, STS-133, arrived by about 3:45 p.m. EST at the Shuttle Landing Facility at NASA's Kennedy Space Center, Fla.

The crew made brief statements to media who attended the arrival. The astronauts then headed off to begin their prelaunch activities.

The countdown for Thursday's 4:50 p.m. EST launch officially begins tomorrow at 3 p.m.

A precountdown status briefing will air on NASA TV Monday at 10 a.m.

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