This photo provided by the U.S. Air Force shows a jumbo jet carrying the space shuttle Atlantis landing at Offutt Air Force Base, in Neb., Sunday, July 1, 2007. The jet made a planned stop at Offutt Air Force Base near Omaha, Neb., Sunday, June 1, 2007, for refueling and to check the connection between it and the shuttle. NASA officials said the shuttle will not take off until Monday morning at the earliest.[AP]