After a day-long flight readiness review at Kennedy Space Center in Florida, senior NASA and contractor managers voted unanimously to set space shuttle Discovery’s STS-133 launch date for Feb. 24 at 4:50 p.m. EST.NASA Television will air a news conference at 6 p.m. to discuss the meeting and preparations for Discovery’s mission to the International Space Station. Participants include Bill Gerstenmaier, assistant administrator for Space Operations, Mike Moses, Space Shuttle Program launch integration manager and Mike Leinbach, shuttle launch director.