The space shuttle Discovery slowly moves towards the pad after exiting the Vehicle Assembly Building at Kennedy Space Center in Cape Canaveral, Fla., in this April 6, 2005 photo. Top NASA officials called a meeting Thursday, April 28, 2005, to discuss the latest launch-debris analyses and the chances of holding to a May liftoff for the first space shuttle flight since the Columbia disaster. (Peter Cosgrove/AP photo)
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