61B-S-071 (3 Dec 1985) --- George W.S. Abbey, director of flight crew operations at the Johnson Space Center (JSC), shakes hands with astronaut Brewster Shaw Jr., STS 61-B mission commander, as the seven-member crew descends the steps from its space-bound "home" for the last week. Following Shaw down the steps (bottom to top) were astronauts Bryan D. O'Connor, Sherwood C. Spring, Mary L. Cleave, Jerry L. Ross and Payload Specialists Charles D. Walker and Rodolfo Neri.

KENNEDY SPACE CENTER, FLA. -- Space shuttle Atlantis is towed along a two-mile tow-way to the Orbiter Processing Facility, or OPF, where processing Atlantis for another flight will take place. Towing normally begins within four hours after landing and is completed within six hours unless removal of time-sensitive experiments is required on the runway. In the OPF, turnaround processing procedures on Atlantis will include various post-flight deservicing and maintenance functions, which are carried out in parallel with payload removal and the installation of equipment needed for the next mission. After a round trip of nearly 5.3 million miles, Atlantis and crew returned to Earth with a landing at 9:07 a.m. EST to complete the STS-122 mission. Photo credit: NASA/Jack Pfaller

KENNEDY SPACE CENTER, FLA. -- Space shuttle Atlantis is towed into the Orbiter Processing Facility, or OPF, where processing Atlantis for another flight will take place. After a round trip of nearly 5.3 million miles, Atlantis and crew returned to Earth with a landing at 9:07 a.m. EST to complete the STS-122 mission. Towing normally begins within four hours after landing and is completed within six hours unless removal of time-sensitive experiments is required on the runway. In the OPF, turnaround processing procedures on Atlantis will include various post-flight deservicing and maintenance functions, which are carried out in parallel with payload removal and the installation of equipment needed for the next mission. Photo credit: NASA/Jack Pfaller

KENNEDY SPACE CENTER, FLA. -- From the Shuttle Landing Facility runway at NASA's Kennedy Space Center, space shuttle Atlantis is towed to the Orbiter Processing Facility, or OPF, where processing Atlantis for another flight will take place. Towing normally begins within four hours after landing and is completed within six hours unless removal of time-sensitive experiments is required on the runway. In the OPF, turnaround processing procedures on Atlantis will include various post-flight deservicing and maintenance functions, which are carried out in parallel with payload removal and the installation of equipment needed for the next mission. After a round trip of nearly 5.3 million miles, Atlantis and crew returned to Earth with a landing at 9:07 a.m. EST to complete the STS-122 mission. Photo credit: NASA/Jack Pfaller

KENNEDY SPACE CENTER, FLA. -- Space shuttle Atlantis is towed toward the Orbiter Processing Facility, or OPF, where processing Atlantis for another flight will take place. After a round trip of nearly 5.3 million miles, Atlantis and crew returned to Earth with a landing at 9:07 a.m. EST to complete the STS-122 mission. Towing normally begins within four hours after landing and is completed within six hours unless removal of time-sensitive experiments is required on the runway. In the OPF, turnaround processing procedures on Atlantis will include various post-flight deservicing and maintenance functions, which are carried out in parallel with payload removal and the installation of equipment needed for the next mission. Photo credit: NASA/Jack Pfaller

KENNEDY SPACE CENTER, FLA. -- On the Shuttle Landing Facility runway at NASA's Kennedy Space Center, a tractor tow vehicle is backed up to space shuttle Atlantis for towing to the Orbiter Processing Facility, or OPF, where processing Atlantis for another flight will take place. Towing normally begins within four hours after landing and is completed within six hours unless removal of time-sensitive experiments is required on the runway. In the OPF, turnaround processing procedures on Atlantis will include various post-flight deservicing and maintenance functions, which are carried out in parallel with payload removal and the installation of equipment needed for the next mission. After a round trip of nearly 5.3 million miles, Atlantis and crew returned to Earth with a landing at 9:07 a.m. EST to complete the STS-122 mission. Photo credit: NASA/Jack Pfaller

KENNEDY SPACE CENTER, FLA. -- From the Shuttle Landing Facility runway at NASA's Kennedy Space Center, space shuttle Atlantis is towed toward the Orbiter Processing Facility, or OPF, where processing Atlantis for another flight will take place. Towing normally begins within four hours after landing and is completed within six hours unless removal of time-sensitive experiments is required on the runway. In the OPF, turnaround processing procedures on Atlantis will include various post-flight deservicing and maintenance functions, which are carried out in parallel with payload removal and the installation of equipment needed for the next mission. After a round trip of nearly 5.3 million miles, Atlantis and crew returned to Earth with a landing at 9:07 a.m. EST to complete the STS-122 mission. Photo credit: NASA/Jack Pfaller

KENNEDY SPACE CENTER, FLA. -- From the Shuttle Landing Facility runway at NASA's Kennedy Space Center, space shuttle Atlantis is towed to the Orbiter Processing Facility, or OPF, where processing Atlantis for another flight will take place. Towing normally begins within four hours after landing and is completed within six hours unless removal of time-sensitive experiments is required on the runway. In the OPF, turnaround processing procedures on Atlantis will include various post-flight deservicing and maintenance functions, which are carried out in parallel with payload removal and the installation of equipment needed for the next mission. After a round trip of nearly 5.3 million miles, Atlantis and crew returned to Earth with a landing at 9:07 a.m. EST to complete the STS-122 mission. Photo credit: NASA/Jack Pfaller

KENNEDY SPACE CENTER, FLA. -- From the Shuttle Landing Facility runway at NASA's Kennedy Space Center, space shuttle Atlantis is towed to theOrbiter Processing Facility, or OPF, where processing Atlantis for another flight will take place. Towing normally begins within four hours after landing and is completed within six hours unless removal of time-sensitive experiments is required on the runway. In the OPF, turnaround processing procedures on Atlantis will include various post-flight deservicing and maintenance functions, which are carried out in parallel with payload removal and the installation of equipment needed for the next mission. After a round trip of nearly 5.3 million miles, Atlantis and crew returned to Earth with a landing at 9:07 a.m. EST to complete the STS-122 mission. Photo credit: NASA/Jack Pfaller

KENNEDY SPACE CENTER, FLA. -- From the Shuttle Landing Facility runway at NASA's Kennedy Space Center, space shuttle Atlantis is towed to the Orbiter Processing Facility, or OPF, where processing Atlantis for another flight will take place. Towing normally begins within four hours after landing and is completed within six hours unless removal of time-sensitive experiments is required on the runway. In the OPF, turnaround processing procedures on Atlantis will include various post-flight deservicing and maintenance functions, which are carried out in parallel with payload removal and the installation of equipment needed for the next mission. After a round trip of nearly 5.3 million miles, Atlantis and crew returned to Earth with a landing at 9:07 a.m. EST to complete the STS-122 mission. Photo credit: NASA/Jack Pfaller

Todd Viddle; APU advanced systems technician, Robert 'Skip' Garrett; main propulsion advanced systems technician, and Dan McGrath; main propulsion systems engineer technician, remove a servicing unit from the Space Shuttle Discovery as part of it's post-flight processing at NASA's Dryden Flight Research Center. The Space Shuttles receive post-flight servicing in the Mate-Demate Device (MDD) following landings at NASA's Dryden Flight Research Center, Edwards, California. The gantry-like MDD structure is used for servicing the shuttle orbiters in preparation for their ferry flight back to the Kennedy Space Center in Florida, including mounting the shuttle atop NASA's modified Boeing 747 Shuttle Carrier Aircraft. Space Shuttle Discovery landed safely at NASA's Dryden Flight Research Center at Edwards Air Force Base in California at 5:11:22 a.m. PDT, August 9, 2005, following the very successful 14-day STS-114 return to flight mission. During their two weeks in space, Commander Eileen Collins and her six crewmates tested out new safety procedures and delivered supplies and equipment the International Space Station. Discovery spent two weeks in space, where the crew demonstrated new methods to inspect and repair the Shuttle in orbit. The crew also delivered supplies, outfitted and performed maintenance on the International Space Station. A number of these tasks were conducted during three spacewalks. In an unprecedented event, spacewalkers were called upon to remove protruding gap fillers from the heat shield on Discovery's underbelly. In other spacewalk activities, astronauts installed an external platform onto the Station's Quest Airlock and replaced one of the orbital outpost's Control Moment Gyroscopes. Inside the Station, the STS-114 crew conducted joint operations with the Expedition 11 crew. They unloaded fresh supplies from the Shuttle and the Raffaello Multi-Purpose Logistics Module. Before Discovery undocked, the crews filled Raffeallo with unneeded items

Robert 'Skip' Garrett; main propulsion advanced systems technician, and Chris Jacobs; main propulsion systems engineering technician, inspect external tank attachment fittings on the Space Shuttle Discovery as part of it's post-flight processing at NASA's Dryden Flight Research Center. The Space Shuttles receive post-flight servicing in the Mate-Demate Device (MDD) following landings at NASA's Dryden Flight Research Center, Edwards, California. The gantry-like MDD structure is used for servicing the shuttle orbiters in preparation for their ferry flight back to the Kennedy Space Center in Florida, including mounting the shuttle atop NASA's modified Boeing 747 Shuttle Carrier Aircraft. Space Shuttle Discovery landed safely at NASA's Dryden Flight Research Center at Edwards Air Force Base in California at 5:11:22 a.m. PDT, August 9, 2005, following the very successful 14-day STS-114 return to flight mission. During their two weeks in space, Commander Eileen Collins and her six crewmates tested out new safety procedures and delivered supplies and equipment the International Space Station. Discovery spent two weeks in space, where the crew demonstrated new methods to inspect and repair the Shuttle in orbit. The crew also delivered supplies, outfitted and performed maintenance on the International Space Station. A number of these tasks were conducted during three spacewalks. In an unprecedented event, spacewalkers were called upon to remove protruding gap fillers from the heat shield on Discovery's underbelly. In other spacewalk activities, astronauts installed an external platform onto the Station's Quest Airlock and replaced one of the orbital outpost's Control Moment Gyroscopes. Inside the Station, the STS-114 crew conducted joint operations with the Expedition 11 crew. They unloaded fresh supplies from the Shuttle and the Raffaello Multi-Purpose Logistics Module. Before Discovery undocked, the crews filled Raffeallo with unneeded items and returned to Shuttle pa

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, the space shuttle mock-up, dubbed Pathfinder, enters the Vehicle Assembly Building for a fit-check May 15, 1978. The mock-up, constructed at NASA's Marshall Space Flight Center in Huntsville, Ala., possessed the general dimensions, weight and balance of a real space shuttle. It was shipped to Kennedy by barge and then used to fit-check the work platforms of the Mate-Demate Device, orbiter processing facilities and Vehicle Assembly Building, as well as support ground crew training. It also was used to rehearse post-landing procedures at Kennedy's Shuttle Landing Facility. After being on display at the 'Great Space Shuttle Exposition' in Tokyo from June 1983 to August 1984, the mock-up returned to Marshall and now is on permanent display at the U.S. Space and Rocket Center near Huntsville. Photo credit: NASA

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, the space shuttle mock-up, dubbed Pathfinder, performs a lift test in the Vehicle Assembly Building on May 31, 1978. The mock-up, constructed at NASA's Marshall Space Flight Center in Huntsville, Ala., possessed the general dimensions, weight and balance of a real space shuttle. It was shipped to Kennedy by barge and then used to fit-check the work platforms of the Mate-Demate Device, orbiter processing facilities and Vehicle Assembly Building, as well as support ground crew training. It also was used to rehearse post-landing procedures at Kennedy's Shuttle Landing Facility. After being on display at the 'Great Space Shuttle Exposition' in Tokyo from June 1983 to August 1984, the mock-up returned to Marshall and now is on permanent display at the U.S. Space and Rocket Center near Huntsville. Photo credit: NASA

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, the space shuttle mock-up, dubbed Pathfinder, makes its trek from the turn basin to the Vehicle Assembly Building on April 5, 1978. The mock-up, constructed at NASA's Marshall Space Flight Center in Huntsville, Ala., possessed the general dimensions, weight and balance of a real space shuttle. It was shipped to Kennedy by barge and then used to fit-check the work platforms of the Mate-Demate Device, orbiter processing facilities and Vehicle Assembly Building, as well as support ground crew training. It also was used to rehearse post-landing procedures at Kennedy's Shuttle Landing Facility. After being on display at the 'Great Space Shuttle Exposition' in Tokyo from June 1983 to August 1984, the mock-up returned to Marshall and now is on permanent display at the U.S. Space and Rocket Center near Huntsville. Photo credit: NASA

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, the space shuttle mock-up, dubbed Pathfinder, enters the Vehicle Assembly Building for a fit-check May 15, 1978. The mock-up, constructed at NASA's Marshall Space Flight Center in Huntsville, Ala., possessed the general dimensions, weight and balance of a real space shuttle. It was shipped to Kennedy by barge and then used to fit-check the work platforms of the Mate-Demate Device, orbiter processing facilities and Vehicle Assembly Building, as well as support ground crew training. It also was used to rehearse post-landing procedures at Kennedy's Shuttle Landing Facility. After being on display at the 'Great Space Shuttle Exposition' in Tokyo from June 1983 to August 1984, the mock-up returned to Marshall and now is on permanent display at the U.S. Space and Rocket Center near Huntsville. Photo credit: NASA

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, the space shuttle mock-up, dubbed Pathfinder, undergoes a lift test in the Vehicle Assembly Building on May 31, 1978. The mock-up, constructed at NASA's Marshall Space Flight Center in Huntsville, Ala., possessed the general dimensions, weight and balance of a real space shuttle. It was shipped to Kennedy by barge and then used to fit-check the work platforms of the Mate-Demate Device, orbiter processing facilities and Vehicle Assembly Building, as well as support ground crew training. It also was used to rehearse post-landing procedures at Kennedy's Shuttle Landing Facility. After being on display at the 'Great Space Shuttle Exposition' in Tokyo from June 1983 to August 1984, the mock-up returned to Marshall and now is on permanent display at the U.S. Space and Rocket Center near Huntsville. Photo credit: NASA

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, the space shuttle mock-up, dubbed Pathfinder, is attached to the Mate-Demate Device for at fit-check Oct. 19, 1978. The mock-up, constructed at NASA's Marshall Space Flight Center in Huntsville, Ala., possessed the general dimensions, weight and balance of a real space shuttle. It was shipped to Kennedy by barge and then used to fit-check the work platforms of the Mate-Demate Device, orbiter processing facilities and Vehicle Assembly Building, as well as support ground crew training. It also was used to rehearse post-landing procedures at Kennedy's Shuttle Landing Facility. After being on display at the 'Great Space Shuttle Exposition' in Tokyo from June 1983 to August 1984, the mock-up returned to Marshall and now is on permanent display at the U.S. Space and Rocket Center near Huntsville. Photo credit: NASA

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, the space shuttle mock-up, dubbed Pathfinder, enters the Vehicle Assembly Building for a fit-check May 15, 1978. The mock-up, constructed at NASA's Marshall Space Flight Center in Huntsville, Ala., possessed the general dimensions, weight and balance of a real space shuttle. It was shipped to Kennedy by barge and then used to fit-check the work platforms of the Mate-Demate Device, orbiter processing facilities and Vehicle Assembly Building, as well as support ground crew training. It also was used to rehearse post-landing procedures at Kennedy's Shuttle Landing Facility. After being on display at the 'Great Space Shuttle Exposition' in Tokyo from June 1983 to August 1984, the mock-up returned to Marshall and now is on permanent display at the U.S. Space and Rocket Center near Huntsville. Photo credit: NASA

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, the space shuttle mock-up, dubbed Pathfinder, undergoes a lift test in the Vehicle Assembly Building on May 31, 1978. The mock-up, constructed at NASA's Marshall Space Flight Center in Huntsville, Ala., possessed the general dimensions, weight and balance of a real space shuttle. It was shipped to Kennedy by barge and then used to fit-check the work platforms of the Mate-Demate Device, orbiter processing facilities and Vehicle Assembly Building, as well as support ground crew training. It also was used to rehearse post-landing procedures at Kennedy's Shuttle Landing Facility. After being on display at the 'Great Space Shuttle Exposition' in Tokyo from June 1983 to August 1984, the mock-up returned to Marshall and now is on permanent display at the U.S. Space and Rocket Center near Huntsville. Photo credit: NASA

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, the space shuttle mock-up, dubbed Pathfinder, is attached to the Mate-Demate Device for at fit-check Oct. 19, 1978. The mock-up, constructed at NASA's Marshall Space Flight Center in Huntsville, Ala., possessed the general dimensions, weight and balance of a real space shuttle. It was shipped to Kennedy by barge and then used to fit-check the work platforms of the Mate-Demate Device, orbiter processing facilities and Vehicle Assembly Building, as well as support ground crew training. It also was used to rehearse post-landing procedures at Kennedy's Shuttle Landing Facility. After being on display at the 'Great Space Shuttle Exposition' in Tokyo from June 1983 to August 1984, the mock-up returned to Marshall and now is on permanent display at the U.S. Space and Rocket Center near Huntsville. Photo credit: NASA

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, the space shuttle mock-up, dubbed Pathfinder, is attached to the Mate-Demate Device for at fit-check Oct. 19, 1978. The mock-up, constructed at NASA's Marshall Space Flight Center in Huntsville, Ala., possessed the general dimensions, weight and balance of a real space shuttle. It was shipped to Kennedy by barge and then used to fit-check the work platforms of the Mate-Demate Device, orbiter processing facilities and Vehicle Assembly Building, as well as support ground crew training. It also was used to rehearse post-landing procedures at Kennedy's Shuttle Landing Facility. After being on display at the 'Great Space Shuttle Exposition' in Tokyo from June 1983 to August 1984, the mock-up returned to Marshall and now is on permanent display at the U.S. Space and Rocket Center near Huntsville. Photo credit: NASA

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, the space shuttle mock-up, dubbed Pathfinder, makes its trek from the turn basin to the Vehicle Assembly Building on April 5, 1978. The mock-up, constructed at NASA's Marshall Space Flight Center in Huntsville, Ala., possessed the general dimensions, weight and balance of a real space shuttle. It was shipped to Kennedy by barge and then used to fit-check the work platforms of the Mate-Demate Device, orbiter processing facilities and Vehicle Assembly Building, as well as support ground crew training. It also was used to rehearse post-landing procedures at Kennedy's Shuttle Landing Facility. After being on display at the 'Great Space Shuttle Exposition' in Tokyo from June 1983 to August 1984, the mock-up returned to Marshall and now is on permanent display at the U.S. Space and Rocket Center near Huntsville. Photo credit: NASA

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, the space shuttle mock-up, dubbed Pathfinder, makes its trek from the turn basin to the Vehicle Assembly Building on April 5, 1978. The mock-up, constructed at NASA's Marshall Space Flight Center in Huntsville, Ala., possessed the general dimensions, weight and balance of a real space shuttle. It was shipped to Kennedy by barge and then used to fit-check the work platforms of the Mate-Demate Device, orbiter processing facilities and Vehicle Assembly Building, as well as support ground crew training. It also was used to rehearse post-landing procedures at Kennedy's Shuttle Landing Facility. After being on display at the 'Great Space Shuttle Exposition' in Tokyo from June 1983 to August 1984, the mock-up returned to Marshall and now is on permanent display at the U.S. Space and Rocket Center near Huntsville. Photo credit: NASA

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, the space shuttle mock-up, dubbed Pathfinder, is attached to the Mate-Demate Device for at fit-check Oct. 19, 1978. The mock-up, constructed at NASA's Marshall Space Flight Center in Huntsville, Ala., possessed the general dimensions, weight and balance of a real space shuttle. It was shipped to Kennedy by barge and then used to fit-check the work platforms of the Mate-Demate Device, orbiter processing facilities and Vehicle Assembly Building, as well as support ground crew training. It also was used to rehearse post-landing procedures at Kennedy's Shuttle Landing Facility. After being on display at the 'Great Space Shuttle Exposition' in Tokyo from June 1983 to August 1984, the mock-up returned to Marshall and now is on permanent display at the U.S. Space and Rocket Center near Huntsville. Photo credit: NASA

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, the space shuttle mock-up, dubbed Pathfinder, enters the Vehicle Assembly Building for a fit-check May 15, 1978. The mock-up, constructed at NASA's Marshall Space Flight Center in Huntsville, Ala., possessed the general dimensions, weight and balance of a real space shuttle. It was shipped to Kennedy by barge and then used to fit-check the work platforms of the Mate-Demate Device, orbiter processing facilities and Vehicle Assembly Building, as well as support ground crew training. It also was used to rehearse post-landing procedures at Kennedy's Shuttle Landing Facility. After being on display at the 'Great Space Shuttle Exposition' in Tokyo from June 1983 to August 1984, the mock-up returned to Marshall and now is on permanent display at the U.S. Space and Rocket Center near Huntsville. Photo credit: NASA

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, the space shuttle mock-up, dubbed Pathfinder, is attached to the Mate-Demate Device for at fit-check Oct. 19, 1978. The mock-up, constructed at NASA's Marshall Space Flight Center in Huntsville, Ala., possessed the general dimensions, weight and balance of a real space shuttle. It was shipped to Kennedy by barge and then used to fit-check the work platforms of the Mate-Demate Device, orbiter processing facilities and Vehicle Assembly Building, as well as support ground crew training. It also was used to rehearse post-landing procedures at Kennedy's Shuttle Landing Facility. After being on display at the 'Great Space Shuttle Exposition' in Tokyo from June 1983 to August 1984, the mock-up returned to Marshall and now is on permanent display at the U.S. Space and Rocket Center near Huntsville. Photo credit: NASA

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, the space shuttle mock-up, dubbed Pathfinder, makes its trek from the turn basin to the Vehicle Assembly Building on April 5, 1978. The mock-up, constructed at NASA's Marshall Space Flight Center in Huntsville, Ala., possessed the general dimensions, weight and balance of a real space shuttle. It was shipped to Kennedy by barge and then used to fit-check the work platforms of the Mate-Demate Device, orbiter processing facilities and Vehicle Assembly Building, as well as support ground crew training. It also was used to rehearse post-landing procedures at Kennedy's Shuttle Landing Facility. After being on display at the 'Great Space Shuttle Exposition' in Tokyo from June 1983 to August 1984, the mock-up returned to Marshall and now is on permanent display at the U.S. Space and Rocket Center near Huntsville. Photo credit: NASA

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, the space shuttle mock-up, dubbed Pathfinder, makes its trek from the turn basin to the Vehicle Assembly Building on April 5, 1978. The mock-up, constructed at NASA's Marshall Space Flight Center in Huntsville, Ala., possessed the general dimensions, weight and balance of a real space shuttle. It was shipped to Kennedy by barge and then used to fit-check the work platforms of the Mate-Demate Device, orbiter processing facilities and Vehicle Assembly Building, as well as support ground crew training. It also was used to rehearse post-landing procedures at Kennedy's Shuttle Landing Facility. After being on display at the 'Great Space Shuttle Exposition' in Tokyo from June 1983 to August 1984, the mock-up returned to Marshall and now is on permanent display at the U.S. Space and Rocket Center near Huntsville. Photo credit: NASA

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, the space shuttle mock-up, dubbed Pathfinder, is attached to the Mate-Demate Device for at fit-check Oct. 19, 1978. The mock-up, constructed at NASA's Marshall Space Flight Center in Huntsville, Ala., possessed the general dimensions, weight and balance of a real space shuttle. It was shipped to Kennedy by barge and then used to fit-check the work platforms of the Mate-Demate Device, orbiter processing facilities and Vehicle Assembly Building, as well as support ground crew training. It also was used to rehearse post-landing procedures at Kennedy's Shuttle Landing Facility. After being on display at the 'Great Space Shuttle Exposition' in Tokyo from June 1983 to August 1984, the mock-up returned to Marshall and now is on permanent display at the U.S. Space and Rocket Center near Huntsville. Photo credit: NASA

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, the space shuttle mock-up, dubbed Pathfinder, undergoes a lift test in the Vehicle Assembly Building on May 31, 1978. The mock-up, constructed at NASA's Marshall Space Flight Center in Huntsville, Ala., possessed the general dimensions, weight and balance of a real space shuttle. It was shipped to Kennedy by barge and then used to fit-check the work platforms of the Mate-Demate Device, orbiter processing facilities and Vehicle Assembly Building, as well as support ground crew training. It also was used to rehearse post-landing procedures at Kennedy's Shuttle Landing Facility. After being on display at the 'Great Space Shuttle Exposition' in Tokyo from June 1983 to August 1984, the mock-up returned to Marshall and now is on permanent display at the U.S. Space and Rocket Center near Huntsville. Photo credit: NASA

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, the space shuttle mock-up, dubbed Pathfinder, undergoes a lift test in the Vehicle Assembly Building on May 31, 1978. The mock-up, constructed at NASA's Marshall Space Flight Center in Huntsville, Ala., possessed the general dimensions, weight and balance of a real space shuttle. It was shipped to Kennedy by barge and then used to fit-check the work platforms of the Mate-Demate Device, orbiter processing facilities and Vehicle Assembly Building, as well as support ground crew training. It also was used to rehearse post-landing procedures at Kennedy's Shuttle Landing Facility. After being on display at the 'Great Space Shuttle Exposition' in Tokyo from June 1983 to August 1984, the mock-up returned to Marshall and now is on permanent display at the U.S. Space and Rocket Center near Huntsville. Photo credit: NASA

CAPE CANAVERAL, Fla. – Alan Lindenmoyer, manager of NASA’s Commercial Crew and Cargo Program, congratulates Gwynne Shotwell, president of SpaceX, on a job well done during a post-launch news conference in the Press Site auditorium at NASA’s Kennedy Space Center in Florida. The SpaceX Falcon 9 rocket launched into space at 3:44 a.m. EDT from Space Launch Complex-40 on Cape Canaveral Air Force Station in Florida. The launch is the company's second demonstration test flight for NASA's Commercial Orbital Transportation Services Program, or COTS. During the flight, the capsule will conduct a series of check-out procedures to test and prove its systems, including rendezvous and berthing with the International Space Station. If the capsule performs as planned, the cargo and experiments it is carrying will be transferred to the station. The cargo includes food, water and provisions for the station’s Expedition crews, such as clothing, batteries and computer equipment. Under COTS, NASA has partnered with two aerospace companies to deliver cargo to the station. For more information, visit http://www.nasa.gov/spacex. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Participating in a post-launch news conference in the Press Site auditorium at NASA’s Kennedy Space Center in Florida are, from left, George H. Diller, NASA Public Affairs, William Gerstenmaier, associate administrator of NASA’s Human Exploration and Operations Directorate, Alan Lindenmoyer, manager of NASA’s Commercial Crew and Cargo Program, and Gwynne Shotwell, president of SpaceX. Also participating by video teleconference, on the screen at right, is Elon Musk, chief executive officer and chief designer for SpaceX. The SpaceX Falcon 9 rocket launched into space at 3:44 a.m. EDT from Space Launch Complex-40 on Cape Canaveral Air Force Station in Florida. The launch is the company's second demonstration test flight for NASA's Commercial Orbital Transportation Services Program, or COTS. During the flight, the capsule will conduct a series of check-out procedures to test and prove its systems, including rendezvous and berthing with the International Space Station. If the capsule performs as planned, the cargo and experiments it is carrying will be transferred to the station. The cargo includes food, water and provisions for the station’s Expedition crews, such as clothing, batteries and computer equipment. Under COTS, NASA has partnered with two aerospace companies to deliver cargo to the station. For more information, visit http://www.nasa.gov/spacex. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Participating in a post-launch news conference in the Press Site auditorium at NASA’s Kennedy Space Center in Florida are, from left, George H. Diller, NASA Public Affairs, William Gerstenmaier, associate administrator of NASA’s Human Exploration and Operations Directorate, Alan Lindenmoyer, manager of NASA’s Commercial Crew and Cargo Program, and Gwynne Shotwell, president of SpaceX. The SpaceX Falcon 9 rocket launched into space at 3:44 a.m. EDT from Space Launch Complex-40 on Cape Canaveral Air Force Station in Florida. The launch is the company's second demonstration test flight for NASA's Commercial Orbital Transportation Services Program, or COTS. During the flight, the capsule will conduct a series of check-out procedures to test and prove its systems, including rendezvous and berthing with the International Space Station. If the capsule performs as planned, the cargo and experiments it is carrying will be transferred to the station. The cargo includes food, water and provisions for the station’s Expedition crews, such as clothing, batteries and computer equipment. Under COTS, NASA has partnered with two aerospace companies to deliver cargo to the station. For more information, visit http://www.nasa.gov/spacex. Photo credit: NASA/Kim Shiflett

Flight Crew Systems Technicians Ray Smith and Raphael Rodriguez remove one of the Extravehicular Mobility Units, or EMUs, from the Space Shuttle Discovery after it's successful landing at NASA's Dryden Flight Research Center. The Space Shuttles receive post-flight servicing in the Mate-Demate Device (MDD) following landings at NASA's Dryden Flight Research Center, Edwards, California. The gantry-like MDD structure is used for servicing the shuttle orbiters in preparation for their ferry flight back to the Kennedy Space Center in Florida, including mounting the shuttle atop NASA's modified Boeing 747 Shuttle Carrier Aircraft. Space Shuttle Discovery landed safely at NASA's Dryden Flight Research Center at Edwards Air Force Base in California at 5:11:22 a.m. PDT, August 9, 2005, following the very successful 14-day STS-114 return to flight mission. During their two weeks in space, Commander Eileen Collins and her six crewmates tested out new safety procedures and delivered supplies and equipment the International Space Station. Discovery spent two weeks in space, where the crew demonstrated new methods to inspect and repair the Shuttle in orbit. The crew also delivered supplies, outfitted and performed maintenance on the International Space Station. A number of these tasks were conducted during three spacewalks. In an unprecedented event, spacewalkers were called upon to remove protruding gap fillers from the heat shield on Discovery's underbelly. In other spacewalk activities, astronauts installed an external platform onto the Station's Quest Airlock and replaced one of the orbital outpost's Control Moment Gyroscopes. Inside the Station, the STS-114 crew conducted joint operations with the Expedition 11 crew. They unloaded fresh supplies from the Shuttle and the Raffaello Multi-Purpose Logistics Module. Before Discovery undocked, the crews filled Raffeallo with unneeded items and returned to Shuttle payload bay. Discovery launched on July 26 and spent almost 14

The International Space Station (ISS) Payload Operations Center (POC) at NASA's Marshall Space Flight Center (MSFC) in Huntsville, Alabama, is the world's primary science command post for the (ISS), the most ambitious space research facility in human history. The Payload Operations team is responsible for managing all science research experiments aboard the Station. The center is also home for coordination of the mission-plarning work of variety of international sources, all science payload deliveries and retrieval, and payload training and safety programs for the Station crew and all ground personnel. Within the POC, critical payload information from the ISS is displayed on a dedicated workstation, reading both S-band (low data rate) and Ku-band (high data rate) signals from a variety of experiments and procedures operated by the ISS crew and their colleagues on Earth. The POC is the focal point for incorporating research and experiment requirements from all international partners into an integrated ISS payload mission plan. This photograph is an overall view of the MSFC Payload Operations Center displaying the flags of the countries participating in the ISS. The flags at the left portray The United States, Canada, France, Switzerland, Netherlands, Japan, Brazil, and Sweden. The flags at the right portray The Russian Federation, Italy, Germany, Belgium, Spain, United Kingdom, Denmark, and Norway.

The International Space Station (ISS) Payload Operations Center (POC) at NASA's Marshall Space Flight Center (MSFC) in Huntsville, Alabama, is the world's primary science command post for the International Space Station (ISS), the most ambitious space research facility in human history. The Payload Operations team is responsible for managing all science research experiments aboard the Station. The center is also home for coordination of the mission-plarning work of variety of international sources, all science payload deliveries and retrieval, and payload training and safety programs for the Station crew and all ground personnel. Within the POC, critical payload information from the ISS is displayed on a dedicated workstation, reading both S-band (low data rate) and Ku-band (high data rate) signals from a variety of experiments and procedures operated by the ISS crew and their colleagues on Earth. The POC is the focal point for incorporating research and experiment requirements from all international partners into an integrated ISS payload mission plan. This photograph is an overall view of the MSFC Payload Operations Center displaying the flags of the countries participating the ISS. The flags at the left portray The United States, Canada, France, Switzerland, Netherlands, Japan, Brazil, and Sweden. The flags at the right portray The Russian Federation, Italy, Germany, Belgium, Spain, United Kingdom, Denmark, and Norway.

CAPE CANAVERAL, Fla. – Elon Musk, chief executive officer and chief designer for SpaceX, participates in a post-launch news conference being held in the Press Site auditorium at NASA’s Kennedy Space Center in Florida by video teleconference. The SpaceX Falcon 9 rocket launched into space at 3:44 a.m. EDT from Space Launch Complex-40 on Cape Canaveral Air Force Station in Florida. The launch is the company's second demonstration test flight for NASA's Commercial Orbital Transportation Services Program, or COTS. During the flight, the capsule will conduct a series of check-out procedures to test and prove its systems, including rendezvous and berthing with the International Space Station. If the capsule performs as planned, the cargo and experiments it is carrying will be transferred to the station. The cargo includes food, water and provisions for the station’s Expedition crews, such as clothing, batteries and computer equipment. Under COTS, NASA has partnered with two aerospace companies to deliver cargo to the station. For more information, visit http://www.nasa.gov/spacex. Photo credit: NASA/Kim Shiflett

NASA's specially modified 747 Shuttle Carrier Aircraft, or SCA, is positioned under the Space Shuttle Discovery to be attached for their ferry flight to the Kennedy Space Center in Florida. After its post-flight servicing and preparation at NASA Dryden in California, Discovery's return flight to Kennedy aboard the 747 will take approximately 2 days, with stops at several intermediate points for refueling. Space Shuttle Discovery landed safely at NASA's Dryden Flight Research Center at Edwards Air Force Base at 5:11:22 a.m. PDT, August 9, 2005, following the very successful 14-day STS-114 return to flight mission. During their two weeks in space, Commander Eileen Collins and her six crewmates tested out new safety procedures and delivered supplies and equipment the International Space Station. Discovery spent two weeks in space, where the crew demonstrated new methods to inspect and repair the Shuttle in orbit. The crew also delivered supplies, outfitted and performed maintenance on the International Space Station. A number of these tasks were conducted during three spacewalks. In an unprecedented event, spacewalkers were called upon to remove protruding gap fillers from the heat shield on Discovery's underbelly. In other spacewalk activities, astronauts installed an external platform onto the Station's Quest Airlock and replaced one of the orbital outpost's Control Moment Gyroscopes. Inside the Station, the STS-114 crew conducted joint operations with the Expedition 11 crew. They unloaded fresh supplies from the Shuttle and the Raffaello Multi-Purpose Logistics Module. Before Discovery undocked, the crews filled Raffeallo with unneeded items and returned to Shuttle payload bay. Discovery launched on July 26 and spent almost 14 days on orbit.

The Space Shuttle Discovery receives post-flight servicing in the Mate-Demate Device (MDD), following its landing at NASA's Dryden Flight Research Center, Edwards, California, August 9, 2005. The gantry-like MDD structure is used for servicing the shuttle orbiters in preparation for their ferry flight back to the Kennedy Space Center in Florida, including mounting the shuttle atop NASA's modified Boeing 747 Shuttle Carrier Aircraft. Space Shuttle Discovery landed safely at NASA's Dryden Flight Research Center at Edwards Air Force Base in California at 5:11:22 a.m. PDT this morning, following the very successful 14-day STS-114 return to flight mission. During their two weeks in space, Commander Eileen Collins and her six crewmates tested out new safety procedures and delivered supplies and equipment the International Space Station. Discovery spent two weeks in space, where the crew demonstrated new methods to inspect and repair the Shuttle in orbit. The crew also delivered supplies, outfitted and performed maintenance on the International Space Station. A number of these tasks were conducted during three spacewalks. In an unprecedented event, spacewalkers were called upon to remove protruding gap fillers from the heat shield on Discovery's underbelly. In other spacewalk activities, astronauts installed an external platform onto the Station's Quest Airlock and replaced one of the orbital outpost's Control Moment Gyroscopes. Inside the Station, the STS-114 crew conducted joint operations with the Expedition 11 crew. They unloaded fresh supplies from the Shuttle and the Raffaello Multi-Purpose Logistics Module. Before Discovery undocked, the crews filled Raffeallo with unneeded items and returned to Shuttle payload bay. Discovery launched on July 26 and spent almost 14 days on orbit.

The Space Shuttle Discovery receives post-flight servicing in the Mate-Demate Device (MDD), following its landing at NASA's Dryden Flight Research Center, Edwards, California, August 9, 2005. The gantry-like MDD structure is used for servicing the shuttle orbiters in preparation for their ferry flight back to the Kennedy Space Center in Florida, including mounting the shuttle atop NASA's modified Boeing 747 Shuttle Carrier Aircraft. Space Shuttle Discovery landed safely at NASA's Dryden Flight Research Center at Edwards Air Force Base in California at 5:11:22 a.m. PDT, August 9, 2005, following the very successful 14-day STS-114 return to flight mission. During their two weeks in space, Commander Eileen Collins and her six crewmates tested out new safety procedures and delivered supplies and equipment the International Space Station. Discovery spent two weeks in space, where the crew demonstrated new methods to inspect and repair the Shuttle in orbit. The crew also delivered supplies, outfitted and performed maintenance on the International Space Station. A number of these tasks were conducted during three spacewalks. In an unprecedented event, spacewalkers were called upon to remove protruding gap fillers from the heat shield on Discovery's underbelly. In other spacewalk activities, astronauts installed an external platform onto the Station's Quest Airlock and replaced one of the orbital outpost's Control Moment Gyroscopes. Inside the Station, the STS-114 crew conducted joint operations with the Expedition 11 crew. They unloaded fresh supplies from the Shuttle and the Raffaello Multi-Purpose Logistics Module. Before Discovery undocked, the crews filled Raffeallo with unneeded items and returned to Shuttle payload bay. Discovery launched on July 26 and spent almost 14 days on orbit.

Lightning strikes in the distance as the Space Shuttle Discovery receives post-flight processing in the Mate-Demate Device (MDD), following its landing at NASA's Dryden Flight Research Center in California. The gantry-like MDD structure is used for servicing the shuttle orbiters in preparation for their ferry flight back to the Kennedy Space Center in Florida, including mounting the shuttle atop NASA's modified Boeing 747 Shuttle Carrier Aircraft. Space Shuttle Discovery landed safely at NASA's Dryden Flight Research Center at Edwards Air Force Base in California at 5:11:22 a.m. PDT, August 9, 2005, following the very successful 14-day STS-114 return to flight mission. During their two weeks in space, Commander Eileen Collins and her six crewmates tested out new safety procedures and delivered supplies and equipment the International Space Station. Discovery spent two weeks in space, where the crew demonstrated new methods to inspect and repair the Shuttle in orbit. The crew also delivered supplies, outfitted and performed maintenance on the International Space Station. A number of these tasks were conducted during three spacewalks. In an unprecedented event, spacewalkers were called upon to remove protruding gap fillers from the heat shield on Discovery's underbelly. In other spacewalk activities, astronauts installed an external platform onto the Station's Quest Airlock and replaced one of the orbital outpost's Control Moment Gyroscopes. Inside the Station, the STS-114 crew conducted joint operations with the Expedition 11 crew. They unloaded fresh supplies from the Shuttle and the Raffaello Multi-Purpose Logistics Module. Before Discovery undocked, the crews filled Raffeallo with unneeded items and returned to Shuttle payload bay. Discovery launched on July 26 and spent almost 14 days on orbit.

A technician leaves the 'white room', the access point for entering the Space Shuttle Discovery during post-flight processing in the Mate-Demate Device (MDD) at NASA's Dryden Flight Research Center in California. The gantry-like MDD structure is used for servicing the shuttle orbiters in preparation for their ferry flight back to the Kennedy Space Center in Florida, including mounting the shuttle atop NASA's modified Boeing 747 Shuttle Carrier Aircraft. Space Shuttle Discovery landed safely at NASA's Dryden Flight Research Center at Edwards Air Force Base in California at 5:11:22 a.m. PDT, August 9, 2005, following the very successful 14-day STS-114 return to flight mission. During their two weeks in space, Commander Eileen Collins and her six crewmates tested out new safety procedures and delivered supplies and equipment the International Space Station. Discovery spent two weeks in space, where the crew demonstrated new methods to inspect and repair the Shuttle in orbit. The crew also delivered supplies, outfitted and performed maintenance on the International Space Station. A number of these tasks were conducted during three spacewalks. In an unprecedented event, spacewalkers were called upon to remove protruding gap fillers from the heat shield on Discovery's underbelly. In other spacewalk activities, astronauts installed an external platform onto the Station's Quest Airlock and replaced one of the orbital outpost's Control Moment Gyroscopes. Inside the Station, the STS-114 crew conducted joint operations with the Expedition 11 crew. They unloaded fresh supplies from the Shuttle and the Raffaello Multi-Purpose Logistics Module. Before Discovery undocked, the crews filled Raffeallo with unneeded items and returned to Shuttle payload bay. Discovery launched on July 26 and spent almost 14 days on orbit.

The sun sets on the Space Shuttle Discovery during post-flight processing in the Mate-Demate Device (MDD), following its landing at NASA's Dryden Flight Research Center in California. The gantry-like MDD structure is used for servicing the shuttle orbiters in preparation for their ferry flight back to the Kennedy Space Center in Florida, including mounting the shuttle atop NASA's modified Boeing 747 Shuttle Carrier Aircraft. Space Shuttle Discovery landed safely at NASA's Dryden Flight Research Center at Edwards Air Force Base in California at 5:11:22 a.m. PDT, August 9, 2005, following the very successful 14-day STS-114 return to flight mission. During their two weeks in space, Commander Eileen Collins and her six crewmates tested out new safety procedures and delivered supplies and equipment the International Space Station. Discovery spent two weeks in space, where the crew demonstrated new methods to inspect and repair the Shuttle in orbit. The crew also delivered supplies, outfitted and performed maintenance on the International Space Station. A number of these tasks were conducted during three spacewalks. In an unprecedented event, spacewalkers were called upon to remove protruding gap fillers from the heat shield on Discovery's underbelly. In other spacewalk activities, astronauts installed an external platform onto the Station's Quest Airlock and replaced one of the orbital outpost's Control Moment Gyroscopes. Inside the Station, the STS-114 crew conducted joint operations with the Expedition 11 crew. They unloaded fresh supplies from the Shuttle and the Raffaello Multi-Purpose Logistics Module. Before Discovery undocked, the crews filled Raffeallo with unneeded items and returned to Shuttle payload bay. Discovery launched on July 26 and spent almost 14 days on orbit.

NASA's specially modified 747 Shuttle Carrier Aircraft, or SCA, is positioned under the Space Shuttle Discovery to be attached for their ferry flight to the Kennedy Space Center in Florida. After its post-flight servicing and preparation at NASA Dryden in California, Discovery's return flight to Kennedy aboard the 747 will take approximately 2 days, with stops at several intermediate points for refueling. Space Shuttle Discovery landed safely at NASA's Dryden Flight Research Center at Edwards Air Force Base at 5:11:22 a.m. PDT, August 9, 2005, following the very successful 14-day STS-114 return to flight mission. During their two weeks in space, Commander Eileen Collins and her six crewmates tested out new safety procedures and delivered supplies and equipment the International Space Station. Discovery spent two weeks in space, where the crew demonstrated new methods to inspect and repair the Shuttle in orbit. The crew also delivered supplies, outfitted and performed maintenance on the International Space Station. A number of these tasks were conducted during three spacewalks. In an unprecedented event, spacewalkers were called upon to remove protruding gap fillers from the heat shield on Discovery's underbelly. In other spacewalk activities, astronauts installed an external platform onto the Station's Quest Airlock and replaced one of the orbital outpost's Control Moment Gyroscopes. Inside the Station, the STS-114 crew conducted joint operations with the Expedition 11 crew. They unloaded fresh supplies from the Shuttle and the Raffaello Multi-Purpose Logistics Module. Before Discovery undocked, the crews filled Raffeallo with unneeded items and returned to Shuttle payload bay. Discovery launched on July 26 and spent almost 14 days on orbit.

The sun sets on the Space Shuttle Discovery during post-flight processing in the Mate-Demate Device (MDD), following its landing at NASA's Dryden Flight Research Center in California. The gantry-like MDD structure is used for servicing the shuttle orbiters in preparation for their ferry flight back to the Kennedy Space Center in Florida, including mounting the shuttle atop NASA's modified Boeing 747 Shuttle Carrier Aircraft. Space Shuttle Discovery landed safely at NASA's Dryden Flight Research Center at Edwards Air Force Base in California at 5:11:22 a.m. PDT, August 9, 2005, following the very successful 14-day STS-114 return to flight mission. During their two weeks in space, Commander Eileen Collins and her six crewmates tested out new safety procedures and delivered supplies and equipment the International Space Station. Discovery spent two weeks in space, where the crew demonstrated new methods to inspect and repair the Shuttle in orbit. The crew also delivered supplies, outfitted and performed maintenance on the International Space Station. A number of these tasks were conducted during three spacewalks. In an unprecedented event, spacewalkers were called upon to remove protruding gap fillers from the heat shield on Discovery's underbelly. In other spacewalk activities, astronauts installed an external platform onto the Station's Quest Airlock and replaced one of the orbital outpost's Control Moment Gyroscopes. Inside the Station, the STS-114 crew conducted joint operations with the Expedition 11 crew. They unloaded fresh supplies from the Shuttle and the Raffaello Multi-Purpose Logistics Module. Before Discovery undocked, the crews filled Raffeallo with unneeded items and returned to Shuttle payload bay. Discovery launched on July 26 and spent almost 14 days on orbit.

The sun sets on the Space Shuttle Discovery during post-flight processing in the Mate-Demate Device (MDD), following its landing at NASA's Dryden Flight Research Center in California. The gantry-like MDD structure is used for servicing the shuttle orbiters in preparation for their ferry flight back to the Kennedy Space Center in Florida, including mounting the shuttle atop NASA's modified Boeing 747 Shuttle Carrier Aircraft. Space Shuttle Discovery landed safely at NASA's Dryden Flight Research Center at Edwards Air Force Base in California at 5:11:22 a.m. PDT, August 9, 2005, following the very successful 14-day STS-114 return to flight mission. During their two weeks in space, Commander Eileen Collins and her six crewmates tested out new safety procedures and delivered supplies and equipment the International Space Station. Discovery spent two weeks in space, where the crew demonstrated new methods to inspect and repair the Shuttle in orbit. The crew also delivered supplies, outfitted and performed maintenance on the International Space Station. A number of these tasks were conducted during three spacewalks. In an unprecedented event, spacewalkers were called upon to remove protruding gap fillers from the heat shield on Discovery's underbelly. In other spacewalk activities, astronauts installed an external platform onto the Station's Quest Airlock and replaced one of the orbital outpost's Control Moment Gyroscopes. Inside the Station, the STS-114 crew conducted joint operations with the Expedition 11 crew. They unloaded fresh supplies from the Shuttle and the Raffaello Multi-Purpose Logistics Module. Before Discovery undocked, the crews filled Raffeallo with unneeded items and returned to Shuttle payload bay. Discovery launched on July 26 and spent almost 14 days on orbit.