Technicians are preparing to roll Space Shuttle Discovery from the launch pad to the Vehicle Assembly Building, now scheduled for early morning Thursday, May 26. Once there, Orbiter Discovery will be removed from its External Tank (ET) and lowered into the transfer aisle. On or about June 7, Discovery will be lifted and attached to its new ET and Solid Rocket Boosters. Discovery is expected to be rolled back out to the pad in mid-June.