VAB evacuated; rollout still on

Shuttle Discovery's planned noon rollout still is on schedule despite an evacuation of the Kennedy Space Center Vehicle Assembly Building.

NASA cleared dozens of workers from the 52-story building after a burning smell was detected by safety engineers. The problem was traced to a power supply associated with the mobile launcher platform Discovery is mounted atop. It emitted a burning smell when electricity was routed to it -- much like a heater at home would if it hadn't been turned on in a while.

Workers now have returned to the building and NASA still is targeting noon for the shuttle's move out to launch pad 39B.