Endeavour's Last Trip To Pad Under Way

Shuttle Endeavour is on a roll, creeping out toward its oceanside launch pad for what will be its 25th and final flight.

A crawler-transporter built for the Apollo program began inching out of Kennedy Space Center's 52-story assembly building at 7:56 p.m., hauling a mobile launcher platform with Discovery, an external tank and twin solid rocket boosters atop it.

Hundreds of Kennedy workers are on hand to watch the move.

The orbiter's last trip to the launch pad is expected to take six to seven hours. The crawler-transporter will be hauling the shuttle stack a distance of 3.5 miles.

You can watch the rollout live here in The Flame Trench. Click the NASA TV box on the right side of the page to launch our NASA TV viewer and live coverage.