Movement of the Rotating Service Structure (RSS) was stopped this evening because of weather concerns in the area around NASA’s Kennedy Space Center in Florida. The RSS protects the shuttle at the launch pad and gives workers access to the shuttle during launch processing. The Mission Management Team decided to proceed with the countdown for Discovery’s launch on Thursday at 3:29 p.m. EDT. A news conference with Mike Moses, MMT chair, and Mike Leinbach, shuttle launch director, will begin shortly on NASA TV.