CAPE CANAVERAL, Fla. -- After a briefing in the Press Site auditorium at NASA's Kennedy Space Center in Florida, Shuttle Launch Director Mike Leinbach waves his STS-135 shuttle launch team member flag after the successful launch of space shuttle Atlantis. Atlantis began its final flight at 11:29 a.m. EDT on July 8. STS-135 will deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts for the International Space Station. Atlantis also will fly the Robotic Refueling Mission experiment that will investigate the potential for robotically refueling existing satellites in orbit. In addition, Atlantis will return with a failed ammonia pump module to help NASA better understand the failure mechanism and improve pump designs for future systems. STS-135 will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. For more information, visit www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. -- In the Press Site auditorium at NASA's Kennedy Space Center in Florida, NASA managers brief media about the launch status of space shuttle Atlantis' STS-135 mission to the International Space Station. Seen here are Public Affairs Officer Candrea Thomas (left), Space Shuttle Program Launch Integration Manager Mike Moses, Shuttle Launch Director Mike Leinbach and Shuttle Weather Officer Kathy Winters. Atlantis and its crew of four are scheduled to lift off at 11:26 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the station. The STS-135 mission also will fly a system to investigate the potential for robotically refueling existing satellites and return a failed ammonia pump module to help NASA better understand the failure mechanism and improve pump designs for future systems. STS-135 will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. For more information visit, www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Jack Pfaller

CAPE CANAVERAL, Fla. -- After a briefing in the Press Site auditorium at NASA's Kennedy Space Center in Florida, Shuttle Program Launch Integration Manager Mike Moses congratulates Shuttle Launch Director Mike Leinbach after the successful launch of space shuttle Atlantis. Atlantis began its final flight at 11:29 a.m. EDT on July 8. STS-135 will deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts for the International Space Station. Atlantis also will fly the Robotic Refueling Mission experiment that will investigate the potential for robotically refueling existing satellites in orbit. In addition, Atlantis will return with a failed ammonia pump module to help NASA better understand the failure mechanism and improve pump designs for future systems. STS-135 will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. For more information, visit www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. -- In the Press Site auditorium at NASA's Kennedy Space Center in Florida, NASA managers brief media about the payload and launch status of space shuttle Atlantis' STS-135 mission to the International Space Station. Seen here are Public Affairs Officer Candrea Thomas, NASA Test Director Jeremy Graeber, Payload Mission Manager Joe Delai and Shuttle Weather Officer Kathy Winters (obscured). Atlantis and its crew are scheduled to lift off at 11:26 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the station. The STS-135 mission also will fly a system to investigate the potential for robotically refueling existing satellites and return a failed ammonia pump module to help NASA better understand the failure mechanism and improve pump designs for future systems. STS-135 will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. For more information visit, www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- In the Press Site auditorium at NASA's Kennedy Space Center in Florida, NASA managers brief media about the payload and launch status of space shuttle Atlantis' STS-135 mission to the International Space Station. Seen here are Public Affairs Officer Candrea Thomas, NASA Test Director Jeremy Graeber, Payload Mission Manager Joe Delai and Shuttle Weather Officer Kathy Winters (obscured). Atlantis and its crew are scheduled to lift off at 11:26 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the station. The STS-135 mission also will fly a system to investigate the potential for robotically refueling existing satellites and return a failed ammonia pump module to help NASA better understand the failure mechanism and improve pump designs for future systems. STS-135 will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. For more information visit, www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- In the Press Site auditorium at NASA's Kennedy Space Center in Florida, NASA managers brief media about the payload and launch status of space shuttle Atlantis' STS-135 mission to the International Space Station. From left are NASA Test Director Jeremy Graeber, Payload Mission Manager Joe Delai and Shuttle Weather Officer Kathy Winters. Atlantis and its crew are scheduled to lift off at 11:26 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the station. The STS-135 mission also will fly a system to investigate the potential for robotically refueling existing satellites and return a failed ammonia pump module to help NASA better understand the failure mechanism and improve pump designs for future systems. STS-135 will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. For more information visit, www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- In the Press Site auditorium at NASA's Kennedy Space Center in Florida, NASA managers brief media about the payload and launch status of space shuttle Atlantis' STS-135 mission to the International Space Station. Seen here is Shuttle Weather Officer Kathy Winters. Atlantis and its crew are scheduled to lift off at 11:26 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the station. The STS-135 mission also will fly a system to investigate the potential for robotically refueling existing satellites and return a failed ammonia pump module to help NASA better understand the failure mechanism and improve pump designs for future systems. STS-135 will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. For more information visit, www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- In the Press Site auditorium at NASA's Kennedy Space Center in Florida, NASA managers brief media about the payload and launch status of space shuttle Atlantis' STS-135 mission to the International Space Station. Seen here is Payload Mission Manager Joe Delai. Atlantis and its crew are scheduled to lift off at 11:26 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the station. The STS-135 mission also will fly a system to investigate the potential for robotically refueling existing satellites and return a failed ammonia pump module to help NASA better understand the failure mechanism and improve pump designs for future systems. STS-135 will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. For more information visit, www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- In the Press Site auditorium at NASA's Kennedy Space Center in Florida, NASA managers brief media about the payload and launch status of space shuttle Atlantis' STS-135 mission to the International Space Station. Seen here is NASA Test Director Jeremy Graeber. Atlantis and its crew are scheduled to lift off at 11:26 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the station. The STS-135 mission also will fly a system to investigate the potential for robotically refueling existing satellites and return a failed ammonia pump module to help NASA better understand the failure mechanism and improve pump designs for future systems. STS-135 will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. For more information visit, www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- In the Press Site auditorium at NASA's Kennedy Space Center in Florida, NASA managers brief media about the payload and launch status of space shuttle Atlantis' STS-135 mission to the International Space Station. Seen here are NASA Test Director Jeff Spaulding (left), Payload Mission Manager Joe Delai and Shuttle Weather Officer Kathy Winters. Atlantis and its crew of four; Commander Chris Ferguson, Pilot Doug Hurley and Mission Specialists Sandy Magnus and Rex Walheim, are scheduled to lift off at 11:26 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the station. Atlantis also will fly the Robotic Refueling Mission experiment that will investigate the potential for robotically refueling existing satellites in orbit. In addition, Atlantis will return with a failed ammonia pump module to help NASA better understand the failure mechanism and improve pump designs for future systems. STS-135 will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. For more information visit, www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. -- In Firing Room 4 in the Launch Control Center at NASA's Kennedy Space Center in Florida, launch team members sit at their consoles preparing for space shuttle Atlantis' STS-135 mission to the International Space Station. Atlantis and its crew of four are scheduled to lift off at 11:26 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the station. The STS-135 mission also will fly a system to investigate the potential for robotically refueling existing satellites and return a failed ammonia pump module to help NASA better understand the failure mechanism and improve pump designs for future systems. STS-135 will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. For more information visit, www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. -- In Firing Room 4 in the Launch Control Center at NASA's Kennedy Space Center in Florida, launch team members sit at their consoles preparing for space shuttle Atlantis' STS-135 mission to the International Space Station. Atlantis and its crew of four are scheduled to lift off at 11:26 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the station. The STS-135 mission also will fly a system to investigate the potential for robotically refueling existing satellites and return a failed ammonia pump module to help NASA better understand the failure mechanism and improve pump designs for future systems. STS-135 will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. For more information visit, www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. -- Members of the media gather for a post-launch news conference held in the Press Site auditorium at NASA's Kennedy Space Center in Florida, following the successful launch of space shuttle Atlantis on its STS-135 mission to the International Space Station. Seen here are NASA Public Affairs Officer Mike Curie (left) moderator; Associate Administrator for Space Operations Bill Gerstenmaier, Kennedy Center Director Bob Cabana, Shuttle Program Launch Integration Manager Mike Moses, and Shuttle Launch Director Mike Leinbach. Atlantis began its final flight at 11:29 a.m. EDT on July 8. STS-135 will deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts for the International Space Station. Atlantis also will fly the Robotic Refueling Mission experiment that will investigate the potential for robotically refueling existing satellites in orbit. In addition, Atlantis will return with a failed ammonia pump module to help NASA better understand the failure mechanism and improve pump designs for future systems. STS-135 will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. For more information, visit www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- Members of the media gather for a post-launch news conference held in the Press Site auditorium at NASA's Kennedy Space Center in Florida, following the successful launch of space shuttle Atlantis on its STS-135 mission to the International Space Station. Seen here are NASA Public Affairs Officer Mike Curie (left) moderator; Associate Administrator for Space Operations Bill Gerstenmaier, Kennedy Center Director Bob Cabana, Shuttle Program Launch Integration Manager Mike Moses, and Shuttle Launch Director Mike Leinbach. Atlantis began its final flight at 11:29 a.m. EDT on July 8. STS-135 will deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts for the International Space Station. Atlantis also will fly the Robotic Refueling Mission experiment that will investigate the potential for robotically refueling existing satellites in orbit. In addition, Atlantis will return with a failed ammonia pump module to help NASA better understand the failure mechanism and improve pump designs for future systems. STS-135 will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. For more information, visit www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- In Firing Room 4 in the Launch Control Center at NASA's Kennedy Space Center in Florida, launch team members sit at their consoles preparing for space shuttle Atlantis' STS-135 mission to the International Space Station. Atlantis and its crew of four are scheduled to lift off at 11:26 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the station. The STS-135 mission also will fly a system to investigate the potential for robotically refueling existing satellites and return a failed ammonia pump module to help NASA better understand the failure mechanism and improve pump designs for future systems. STS-135 will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. For more information visit, www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. -- In Firing Room 4 in the Launch Control Center at NASA's Kennedy Space Center in Florida, launch team members took their posts at about 12:30 p.m. EDT, July 5 to prepare for space shuttle Atlantis' STS-135 mission to the International Space Station. The countdown clock began ticking backward from the T-43 hour mark at 1 p.m. Atlantis and its crew of four are scheduled to lift off at 11:26 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the station. The STS-135 mission also will fly a system to investigate the potential for robotically refueling existing satellites and return a failed ammonia pump module to help NASA better understand the failure mechanism and improve pump designs for future systems. STS-135 will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. For more information visit, www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. -- Members of the media gather for a post-launch news conference held in the Press Site auditorium at NASA's Kennedy Space Center in Florida, following the successful launch of space shuttle Atlantis on its STS-135 mission to the International Space Station. Seen here are NASA Public Affairs Officer Mike Curie (left) moderator; Associate Administrator for Space Operations Bill Gerstenmaier, Kennedy Center Director Bob Cabana, Shuttle Program Launch Integration Manager Mike Moses, and Shuttle Launch Director Mike Leinbach. Atlantis began its final flight at 11:29 a.m. EDT on July 8. STS-135 will deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts for the International Space Station. Atlantis also will fly the Robotic Refueling Mission experiment that will investigate the potential for robotically refueling existing satellites in orbit. In addition, Atlantis will return with a failed ammonia pump module to help NASA better understand the failure mechanism and improve pump designs for future systems. STS-135 will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. For more information, visit www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. -- Members of the media gather for a post-launch news conference held in the Press Site auditorium at NASA's Kennedy Space Center in Florida, following the successful launch of space shuttle Atlantis on its STS-135 mission to the International Space Station. Atlantis began its final flight at 11:29 a.m. EDT on July 8. STS-135 will deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts for the International Space Station. Atlantis also will fly the Robotic Refueling Mission experiment that will investigate the potential for robotically refueling existing satellites in orbit. In addition, Atlantis will return with a failed ammonia pump module to help NASA better understand the failure mechanism and improve pump designs for future systems. STS-135 will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. For more information, visit www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. -- In Firing Room 4 in the Launch Control Center at NASA's Kennedy Space Center in Florida, launch team members took their posts at about 12:30 p.m. EDT, July 5 to prepare for space shuttle Atlantis' STS-135 mission to the International Space Station. The countdown clock began ticking backward from the T-43 hour mark at 1 p.m. Atlantis and its crew of four are scheduled to lift off at 11:26 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the station. The STS-135 mission also will fly a system to investigate the potential for robotically refueling existing satellites and return a failed ammonia pump module to help NASA better understand the failure mechanism and improve pump designs for future systems. STS-135 will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. For more information visit, www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. -- In Firing Room 4 in the Launch Control Center at NASA's Kennedy Space Center in Florida, launch team members sit at their consoles preparing for space shuttle Atlantis' STS-135 mission to the International Space Station. Atlantis and its crew of four are scheduled to lift off at 11:26 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the station. The STS-135 mission also will fly a system to investigate the potential for robotically refueling existing satellites and return a failed ammonia pump module to help NASA better understand the failure mechanism and improve pump designs for future systems. STS-135 will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. For more information visit, www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. -- Members of the media gather for a post-launch news conference held in the Press Site auditorium at NASA's Kennedy Space Center in Florida, following the successful launch of space shuttle Atlantis on its STS-135 mission to the International Space Station. Atlantis began its final flight at 11:29 a.m. EDT on July 8. STS-135 will deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts for the International Space Station. Atlantis also will fly the Robotic Refueling Mission experiment that will investigate the potential for robotically refueling existing satellites in orbit. In addition, Atlantis will return with a failed ammonia pump module to help NASA better understand the failure mechanism and improve pump designs for future systems. STS-135 will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. For more information, visit www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. -- In Firing Room 4 in the Launch Control Center at NASA's Kennedy Space Center in Florida, launch team members took their posts at about 12:30 p.m. EDT, July 5 to prepare for space shuttle Atlantis' STS-135 mission to the International Space Station. The countdown clock began ticking backward from the T-43 hour mark at 1 p.m. Atlantis and its crew of four are scheduled to lift off at 11:26 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the station. The STS-135 mission also will fly a system to investigate the potential for robotically refueling existing satellites and return a failed ammonia pump module to help NASA better understand the failure mechanism and improve pump designs for future systems. STS-135 will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. For more information visit, www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. -- In Firing Room 4 in the Launch Control Center at NASA's Kennedy Space Center in Florida, launch team members took their posts at about 12:30 p.m. EDT, July 5 to prepare for space shuttle Atlantis' STS-135 mission to the International Space Station. The countdown clock began ticking backward from the T-43 hour mark at 1 p.m. Atlantis and its crew of four are scheduled to lift off at 11:26 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the station. The STS-135 mission also will fly a system to investigate the potential for robotically refueling existing satellites and return a failed ammonia pump module to help NASA better understand the failure mechanism and improve pump designs for future systems. STS-135 will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. For more information visit, www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. -- In Firing Room 4 in the Launch Control Center at NASA's Kennedy Space Center in Florida, launch team members sit at their consoles preparing for space shuttle Atlantis' STS-135 mission to the International Space Station. Atlantis and its crew of four are scheduled to lift off at 11:26 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the station. The STS-135 mission also will fly a system to investigate the potential for robotically refueling existing satellites and return a failed ammonia pump module to help NASA better understand the failure mechanism and improve pump designs for future systems. STS-135 will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. For more information visit, www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. -- In the Launch Control Center at NASA's Kennedy Space Center in Florida, Firing Room 3 is serene as launch team members gather at their consoles in Firing Room 4 preparing for space shuttle Atlantis' STS-135 mission to the International Space Station. Atlantis and its crew of four are scheduled to lift off at 11:26 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the station. The STS-135 mission also will fly a system to investigate the potential for robotically refueling existing satellites and return a failed ammonia pump module to help NASA better understand the failure mechanism and improve pump designs for future systems. STS-135 will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. For more information visit, www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. -- Members of the media gather for a post-launch news conference held in the Press Site auditorium at NASA's Kennedy Space Center in Florida, following the successful launch of space shuttle Atlantis on its STS-135 mission to the International Space Station. Seen here are NASA Public Affairs Officer Mike Curie (left) moderator; Associate Administrator for Space Operations Bill Gerstenmaier, Kennedy Center Director Bob Cabana, Shuttle Program Launch Integration Manager Mike Moses, and Shuttle Launch Director Mike Leinbach. Atlantis began its final flight at 11:29 a.m. EDT on July 8. STS-135 will deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts for the International Space Station. Atlantis also will fly the Robotic Refueling Mission experiment that will investigate the potential for robotically refueling existing satellites in orbit. In addition, Atlantis will return with a failed ammonia pump module to help NASA better understand the failure mechanism and improve pump designs for future systems. STS-135 will be the 33rd flight of Atlantis, the 37th shuttle mission to the space station, and the 135th and final mission of NASA's Space Shuttle Program. For more information, visit www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Kim Shiflett

S135-E-006328 (9 July 2011) --- NASA astronaut Sandy Magnus, STS-135 mission specialist, is pictured on the middeck of the space shuttle Atlantis during a brief break in the flight's second day of activities in Earth orbit. Photo credit: NASA

CAPE CANAVERAL, Fla. – STS-135 Pilot Doug Hurley and Mission Specialist Sandra Magnus receive a briefing and up-close look beneath space shuttle Atlantis inside Kennedy Space Center's Orbiter Processing Facility-2. Atlantis is being prepared for eventual display at the Kennedy Space Center Visitor Complex in Florida. The astronauts, along with Commander Chris Ferguson, were at the center for the traditional post-flight crew return presentation. STS-135 Mission Specialist Rex Walheim was unable to attend the Kennedy event. In July 2011, Atlantis and its crew delivered to the International Space Station the Raffaello multi-purpose logistics module packed with more than 9,400 pounds of spare parts, equipment and supplies that will sustain station operations for the next year. STS-135 was the 33rd and final flight for Atlantis and the final mission of the Space Shuttle Program. For more information, visit www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – STS-135 Pilot Doug Hurley and Mission Specialist Sandra Magnus receive a briefing and up-close look beneath space shuttle Atlantis inside Kennedy Space Center's Orbiter Processing Facility-2. Atlantis is being prepared for eventual display at the Kennedy Space Center Visitor Complex in Florida. The astronauts, along Commander Chris Ferguson, were at the center for the traditional post-flight crew return presentation. STS-135 Mission Specialist Rex Walheim was unable to attend the Kennedy event. In July 2011, Atlantis and its crew delivered to the International Space Station the Raffaello multi-purpose logistics module packed with more than 9,400 pounds of spare parts, equipment and supplies that will sustain station operations for the next year. STS-135 was the 33rd and final flight for Atlantis and the final mission of the Space Shuttle Program. For more information, visit www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Kim Shiflett

S135-E-007698 (13 July 2011) --- Taking a brief break from moving chores and other busy activities on the joint shuttle/International Space Station complex, NASA astronaut Doug Hurley prepares a meal at Atlantis' middeck galley. July 13 marks the sixth day in space for the STS-135 pilot and his three crewmates. Photo credit: NASA

JSC2011-E-040193 (2 March 2011) --- NASA astronaut Chris Ferguson (left), STS-135 commander, confers with astronaut Rex Walheim, mission specialist, as the Atlantis crew participates in a briefing before a training session in the Vertical Motion Simulator (VMS) at NASA's Ames Research Center in Mountain View, Calif. March 2, 2011. Photo credit: NASA Photo/Houston Chronicle, Smiley N. Pool

CAPE CANAVERAL, Fla. -- STS-135 Commander Chris Ferguson leads his crew out of the Crew Transport Vehicle (CTV) following brief and standard medical checks. Behind Ferguson is Pilot Doug Hurley. Four astronauts brought space shuttle Atlantis home to the Shuttle Landing Facility's Runway 15 at NASA's Kennedy Space Center in Florida at 5:57 a.m. EDT bringing a close NASA's Space Shuttle Program. Atlantis' final return from space completed a 13-day, 5.2-million-mile journey to the International Space Station. STS-135 delivered spare parts, equipment and supplies in the Raffaello multi-purpose logistics module that will sustain station operations for the next year. STS-135 was the 33rd and final flight for Atlantis, which has spent 307 days in space, orbited Earth 4,848 times and traveled 125,935,769 miles. For more information visit, www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. -- STS-135 Commander Chris Ferguson leads his crew out of the Crew Transport Vehicle (CTV) following brief and standard medical checks. Behind Ferguson are Pilot Doug Hurley, and Mission Specialists Sandy Magnus and Rex Walheim. The final four astronauts of NASA's Space Shuttle Program brought space shuttle Atlantis home to the Shuttle Landing Facility's Runway 15 at NASA's Kennedy Space Center in Florida at 5:57 a.m. EDT. Atlantis' final return from space completed a 13-day, 5.2-million-mile journey to the International Space Station. STS-135 delivered spare parts, equipment and supplies in the Raffaello multi-purpose logistics module that will sustain station operations for the next year. STS-135 was the 33rd and final flight for Atlantis, which has spent 307 days in space, orbited Earth 4,848 times and traveled 125,935,769 miles. For more information visit, www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Kim Shiflett

STS135-S-195 (21 July 2011) --- NASA astronaut Chris Ferguson, STS-135 commander, leads his crew out of the Crew Transport Vehicle (CTV) following brief and standard medical checks. Behind Ferguson are NASA astronauts Doug Hurley, pilot; Sandy Magnus and Rex Walheim, both mission specialists. The final four astronauts of NASA's Space Shuttle Program brought space shuttle Atlantis home to the Shuttle Landing Facility's Runway 15 at NASA's Kennedy Space Center in Florida at 5:57 a.m. (EDT) on July 21, 2011. Atlantis' final return from space completed a 13-day, 5.2-million-mile journey to the International Space Station. STS-135 delivered spare parts, equipment and supplies in the Raffaello multi-purpose logistics module that will sustain station operations for the next year. STS-135 was the 33rd and final flight for Atlantis, which has spent 307 days in space, orbited Earth 4,848 times and traveled 125,935,769 miles. Photo credit: NASA

CAPE CANAVERAL, Fla. -- STS-135 Commander Chris Ferguson leads his crew out of the Crew Transport Vehicle (CTV) following brief and standard medical checks. Behind Ferguson are Pilot Doug Hurley, and Mission Specialists Sandy Magnus and Rex Walheim. The final four astronauts of NASA's Space Shuttle Program brought space shuttle Atlantis home to the Shuttle Landing Facility's Runway 15 at NASA's Kennedy Space Center in Florida at 5:57 a.m. EDT. Atlantis' final return from space completed a 13-day, 5.2-million-mile journey to the International Space Station. STS-135 delivered spare parts, equipment and supplies in the Raffaello multi-purpose logistics module that will sustain station operations for the next year. STS-135 was the 33rd and final flight for Atlantis, which has spent 307 days in space, orbited Earth 4,848 times and traveled 125,935,769 miles. For more information visit, www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/index.html. Photo credit: NASA/Kim Shiflett