Shuttle Discovery makes final landing (9 images)

NASA's Space Shuttle "Discovery" touches down on Runway 15 at the Kennedy Space Center at 11:57 AM on March 9,2011. Discovery completed her 39th and final mission, STS 133, to the International Space Station, delivering supplies and the Multi-purpose Logistics Module to the orbiting outpost. UPI/Joe Marino-Bill Cantrell

NASA's Space Shuttle "Discovery" approaches Runway 15 at the Shuttle Landing Facility for an on time landing at 11:57 AM at the Kennedy Space Center on March 9, 2011. Discovery's 39th and final flight ends with the successful completion of a fourteen day mission, STS 133, to the International Space Station. Discovery and her crew delivered supplies and installed the Multipurpose Logistics Module and the Express Logistics Carrier #4, completing construction of the orbiting station. UPI/Joe Marino-Bill Cantrell

NASA's Space Shuttle "Discovery" approaches Runway 15 at the Shuttle Landing Facility for an on time landing at 11:57 AM at the Kennedy Space Center on March 9, 2011. Discovery's 39th and final flight ends with the successful completion of a fourteen day mission, STS 133, to the International Space Station. Discovery and her crew delivered supplies and installed the Multipurpose Logistics Module and the Express Logistics Carrier #4, completing construction of the orbiting station. UPI/Joe Marino-Bill Cantrell

NASA's Space Shuttle "Discovery" touches down on Runway 15 at the Shuttle Landing Facility for an on time landing at 11:57 AM at the Kennedy Space Center on March 9, 2011. Discovery's 39th and final flight ends with the successful completion of a fourteen day mission, STS 133, to the International Space Station. Discovery and her crew delivered supplies, installed the Multipurpose Logistics Module and the Express Logistics Carrier #4, completing construction of the orbiting station. UPI/Joe Marino-Bill Cantrell