The crews of the space shuttle and station said goodbye, then sealed the hatches between them Sunday after more than a week of working tirelessly together to deliver and install Europe's space laboratory, Columbus. Atlantis was scheduled to undock early today. Staying behind are American Peggy Whitson, a French astronaut and a Russian cosmonaut. NASA is aiming to wrap up Atlantis' successful 13-day mission with a landing on Wednesday. Both the Kennedy Space Center and the backup landing site in California will be poised to receive Atlantis; the space agency wants the shuttle down that day to give the military enough time to destroy a damaged spy satellite. NASA already is looking ahead to the next shuttle flight to the orbiting station. Endeavour will be moved to the launch pad today in preparation for a March 11 liftoff.