NASA postponed the space shuttle Discovery's return to Earth until later Monday morning because of bad weather over the landing site in Florida. The shuttle and its seven astronauts had been scheduled to land at the Kennedy Space Center at 8:48 a.m. EDT (1248 GMT) on Monday after a 14-day resupply mission to the International Space Station. Their next landing opportunity is at 10:23 a.m. EDT (1423 GMT), Reuters reported.