NASA Spokesperson Allard Beutel, left, and NASA Test Director Jeff Spaulding, participate in the space shuttle Discovery launch status briefing on Friday, Oct. 29, 2010 at the NASA Kennedy Space Center in Cape Canaveral, Fla. Discovery and it's STS-133 mission crew of six are currently targeted to launch at 4:17p.m. EDT on Tuesday, Nov. 2, 2010. Photo Credit: (NASA/Bill Ingalls)

NASA Spokesperson Allard Beutel, left, NASA Test Director Jeff Spaulding and Shuttle Weather Officer Kathy Winters, right, participate in the space shuttle Discovery launch status briefing on Friday, Oct. 29, 2010 at the NASA Kennedy Space Center in Cape Canaveral, Fla. Discovery and it's STS-133 mission crew of six are currently targeted to launch at 4:17p.m. EDT on Tuesday, Nov. 2, 2010. Photo Credit: (NASA/Bill Ingalls)

KENNEDY SPACE CENTER, FLA. - NASA officials brief the media at KSC about the agency’s human space flight program. At left is moderator Allard Beutel, with NASA Headquarters. Others on the panel (left to right) are NASA Deputy Administrator Fred Gregory, Associate Administrator for Space Flight Bill Readdy and Associate Administrator for Safety and Mission Assurance Bryan O’Connor.

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, NASA managers participate in a news conference following landing of the space shuttle Discovery STS-119 mission to the International Space Station. From left are NASA Kennedy Space Center News Chief Allard Beutel, NASA Associate Administrator for Space Operations Bill Gerstenmaier, NASA Deputy Manager of Space Shuttle Program LeRoy Cain and NASA Shuttle Launch Director Mike Leinbach. Main gear touchdown was at 3:13:17 p.m. EDT. Nose gear touchdown was at 3:13:40 p.m. and wheels stop was at 3:14:45 p.m. Discovery delivered the final pair of large power-generating solar array wings and the S6 truss segment. The mission was the 28th flight to the station, the 36th flight of Discovery and the 125th in the Space Shuttle Program, as well as the 70th landing at Kennedy. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, the STS-127 crew members take part in a news conference following their return to Earth on space shuttle Endeavour after the 16-day mission to the International Space Station. From left are NASA Public Affairs Officer Allard Beutel, Commander Mark Polansky, Pilot Doug Hurley, Mission Specialists Christopher Cassidy, Canadian Space Agency astronaut Julie Payette, Tom Marshburn and Dave Wolf, and Japan Aerospace Exploration Agency astronaut Koichi Wakata, who spent four months on the space station and returned on Endeavour. Endeavour delivered the Japanese Experiment Module's Exposed Facility and the Experiment Logistics Module-Exposed Section to the International Space Station. The mission was the 29th flight to the station, the 23rd flight of Endeavour and the 127th in the Space Shuttle Program, as well as the 71st landing at Kennedy. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. -- At Kennedy Space Center in Florida, NASA is hosting a two-day Tweetup for 150 of its Twitter followers of space shuttle Endeavour's STS-134 mission. A Tweetup is an informal meeting of people who use the social messaging medium Twitter. This Tweetup is an opportunity to learn more about NASA, explore Kennedy Space Center and experience a space shuttle launch. Actor_Director LeVar Burton, participating in the Tweetup is interviewed by Kennedy's News Chief Allard Beutel. Endeavour and its crew will deliver the Express Logistics Carrier-3, Alpha Magnetic Spectrometer-2 (AMS), a high-pressure gas tank and additional spare parts for the Dextre robotic helper to the International Space Station. Launch is scheduled for April 29 at 3:47 p.m. EDT. This will be the final spaceflight for Endeavour. For more information visit, www.nasa.gov_mission_pages_shuttle_shuttlemissions_sts134_index.html. Photo credit: NASA_Jack Pfaller

CAPE CANAVERAL, Fla. - At Launch Pad 39A at NASA's Kennedy Space Center in Florida, members of space shuttle Atlantis' STS-129 crew are prepared to answer questions from the media. From left are Kennedy's News Chief Allard Beutel, at microphone; Commander Charles O. Hobaugh; Mission Specialists Mike Foreman and Leland Melvin; Pilot Barry E. Wilmore; and Mission Specialists Robert L. Satcher Jr. and Randy Bresnik. The crew members of space shuttle Atlantis' STS-129 mission are at Kennedy for training related to their launch dress rehearsal, the Terminal Countdown Demonstration Test. Launch of Atlantis on its STS-129 mission to the International Space Station is targeted for Nov. 16. For information on the STS-129 mission objectives and crew, visit http://www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts129/index.html. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – At a post-landing news conference, Public Affairs Officer Allard Beutel (far left) moderates the question-and-answer session with NASA Associate Administrator for Space Operations William Gerstenmaier, President of the Japan Aerospace Exploration Agency Keiji Tachikawa, Director General of Operations in the Canadian Space Agency Benoit Marcotte, space shuttle Launch Integration Manager Mike Moses and STS-127 Launch Director Pete Nickolenko. Space shuttle Endeavour and crew returned to Earth at 10:48 a.m. EDT to conclude the STS-127 mission. Endeavour delivered the Japanese Experiment Module's Exposed Facility and the Experiment Logistics Module-Exposed Section to the International Space Station. The mission was the 29th flight to the station, the 23rd flight of Endeavour and the 127th in the Space Shuttle Program, as well as the 71st landing at Kennedy. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – In the Press Site auditorium at NASA's Kennedy Space Center in Florida, NASA managers brief the media following the scrub of a launch attempt of space shuttle Discovery. From left are briefing moderator Allard Beutel, Mission Management Team Chair Mike Moses and STS-128 Launch Director Pete Nickolenko. The launch attempt was scrubbed due to a problem with a liquid hydrogen valve in the main propulsion system. Liftoff now is no earlier than 12:22 a.m. EDT on Aug. 28.The 13-day STS-128 mission will deliver more than seven tons of supplies, science racks and equipment, as well as additional environmental hardware to sustain six crew members on the International Space Station. The equipment includes a freezer to store research samples, a new sleeping compartment and the COLBERT treadmill. The mission is the 128th in the Space Shuttle Program, the 37th flight of Discovery and the 30th station assembly flight. Photo credit: NASA/Cory Huston

CAPE CANAVERAL, Fla. - In the Press Site auditorium at NASA's Kennedy Space Center in Florida, NASA managers participate in a news conference following the successful landing of space shuttle Endeavour. From left are Allard Beutel, moderator for NASA public affairs; Mike Moses, space shuttle launch integration manager; and Mike Leinbach, shuttle launch director. Endeavour touched down on Runway 15 at Kennedy's Shuttle Landing Facility at 10:20 p.m. EST Feb. 21, completing the 5.7-million-mile STS-130 mission on orbit 217. It was the 23rd night landing in shuttle history and the 17th at Kennedy. During Endeavour's STS-130 mission, astronauts installed the Tranquility node, a module that provides additional room for crew members and many of the station's life support and environmental control systems. Attached to Tranquility is a cupola with seven windows that provide a panoramic view of Earth, celestial objects and visiting spacecraft. The module was built in Turin, Italy, by Thales Alenia Space for the European Space Agency. The orbiting laboratory is approximately 90 percent complete now in terms of mass. STS-130 was the 24th flight for Endeavour, the 32nd shuttle mission devoted to ISS assembly and maintenance, and the 130th shuttle mission to date. For information on the STS-130 mission and crew, visit http:__www.nasa.gov_mission_pages_shuttle_shuttlemissions_sts130_index.html. Photo credit: NASA_Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- Members of the Mission Management Team, or MMT, participate in a news briefing following the conclusion of the team's meeting. The meeting continued the discussion of the problems experienced with the space shuttle Atlantis STS-122 external tank's engine cutoff sensor system that arose during tanking on Dec. 6. From left are Allard Beutel, Kennedy Space Center news chief and briefing moderator; Wayne Hale, Space Shuttle Program manager; LeRoy Cain, MMT chairman; Doug Lyons, STS-122 launch director; and U.S. Air Force Capt. Chris Lovett, 45th Weather Squadron. An announcement was made during the briefing that the STS-122 launch, originally set for Dec. 6, was rescheduled to 3:21 p.m. Dec. 9. Atlantis will carry the Columbus Laboratory, the European Space Agency's largest contribution to the construction of the International Space Station. It will support scientific and technological research in a microgravity environment. Permanently attached to the Harmony node of the space station, the laboratory will carry out experiments in materials science, fluid physics and biosciences, as well as perform a number of technological applications. Photo credit: NASA/Cory Huston

CAPE CANAVERAL, Fla. -- Team members stationed at consoles in the Launch Control Center at NASA's Kennedy Space Center in Florida monitor space shuttle Discovery's external fuel tank as it is loaded with more than 535,000 gallons of cryogenic propellants. From back, are Assistant Launch Orbiter Test Conductor Mark Taffet, Launch Orbiter Test Conductor John Kracsun, STS-133 NASA Test Director Steve Payne, NASA Commentator Allard Beutel, NASA Test Director Jeremy Graeber and STS-133 Assistant NASA Test Director Jeff Spaulding. During today's tanking test, the team is paying particular attention to the external tank's ribbed intertank region. Beginning tomorrow, engineers will evaluate data on 21-foot-long, U-shaped aluminum brackets, called stringers, and the newly replaced ground umbilical carrier plate (GUCP). Discovery's first launch attempt for STS-133 was scrubbed in early November due to a hydrogen gas leak at the GUCP. In order to perform additional analysis on the tank, Discovery will be rolled back to the Vehicle Assembly Building, a move that is planned for next week. The next launch opportunity is no earlier than Feb. 3, 2011. For more information on STS-133, visit www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts133/. Photo credit: NASA/Cory Huston

CAPE CANAVERAL, Fla. - In the Press Site auditorium at NASA's Kennedy Space Center in Florida, NASA managers answer questions from the media during a news conference following the successful landing of space shuttle Endeavour. From left are Allard Beutel, moderator for NASA public affairs; Mike Moses, space shuttle launch integration manager; and Mike Leinbach, shuttle launch director. Endeavour touched down on Runway 15 at Kennedy's Shuttle Landing Facility at 10:20 p.m. EST Feb. 21, completing the 5.7-million-mile STS-130 mission on orbit 217. It was the 23rd night landing in shuttle history and the 17th at Kennedy. During Endeavour's STS-130 mission, astronauts installed the Tranquility node, a module that provides additional room for crew members and many of the station's life support and environmental control systems. Attached to Tranquility is a cupola with seven windows that provide a panoramic view of Earth, celestial objects and visiting spacecraft. The module was built in Turin, Italy, by Thales Alenia Space for the European Space Agency. The orbiting laboratory is approximately 90 percent complete now in terms of mass. STS-130 was the 24th flight for Endeavour, the 32nd shuttle mission devoted to ISS assembly and maintenance, and the 130th shuttle mission to date. For information on the STS-130 mission and crew, visit http:__www.nasa.gov_mission_pages_shuttle_shuttlemissions_sts130_index.html. Photo credit: NASA_Kim Shiflett

CAPE CANAVERAL, Fla. - NASA managers participate in a post-landing media briefing at NASA's Kennedy Space Center in Florida following the completion of the STS-133 mission. From left are Allard Beutel, NASA Public Affairs; Bill Gerstenmaier, associate administrator for Space Operations; Mike Moses, space shuttle launch integration manager; and Mike Leinbach, shuttle launch director. Space shuttle Discovery's final return from space on Runway 15 at Kennedy's Shuttle Landing Facility completed the 13-day, 5.3-million-mile STS-133 mission. Main gear touchdown was at 11:57:17 a.m., followed by nose gear touchdown at 11:57:28, and wheelstop at 11:58:14 a.m. On board are Commander Steve Lindsey, Pilot Eric Boe, and Mission Specialists Nicole Stott, Michael Barratt, Alvin Drew and Steve Bowen. Discovery and its six-member crew delivered the Permanent Multipurpose Module, packed with supplies and critical spare parts, as well as Robonaut 2, the dexterous humanoid astronaut helper, to the orbiting outpost. STS-133 was Discovery's 39th and final mission. This was the 133rd Space Shuttle Program mission and the 35th shuttle voyage to the space station. Photo credit: NASA/Jack Pfaller

CAPE CANAVERAL, Fla. -- Team members stationed at consoles in the Launch Control Center at NASA's Kennedy Space Center in Florida monitor space shuttle Discovery's external fuel tank as it is loaded with more than 535,000 gallons of cryogenic propellants. From left, are NASA Commentator Allard Beutel, Discovery's NASA Vehicle Manager Jennifer Nufer and Lead NASA Test Director Charlie Blackwell-Thompson. During today's tanking test, the team is paying particular attention to the external tank's ribbed intertank region. Beginning tomorrow, engineers will evaluate data on 21-foot-long, U-shaped aluminum brackets, called stringers, and the newly replaced ground umbilical carrier plate (GUCP). Discovery's first launch attempt for STS-133 was scrubbed in early November due to a hydrogen gas leak at the GUCP. In order to perform additional analysis on the tank, Discovery will be rolled back to the Vehicle Assembly Building, a move that is planned for next week. The next launch opportunity is no earlier than Feb. 3, 2011. For more information on STS-133, visit www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts133/. Photo credit: NASA/Cory Huston

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 Endeavour's STS-134 mission and announce a new launch date. From left are NASA News Chief Allard Beutel, Space Shuttle Program Launch Integration Manager, Mike Moses and Shuttle Launch Director Mike Leinbach. Technicians replaced and tested the aft load control assembly-2 (ALCA-2) and wiring located in Endeavour's aft avionics bay 5. ALCA-2 distributes power to nine shuttle systems and is believed to have caused fuel line heaters for Endeavour's auxiliary power unit-1 (APU-1) to fail April 29 during the first launch attempt. Launch now is scheduled for May 16 at 8:56 a.m. EDT. Endeavour and its crew will deliver the Express Logistics Carrier-3, Alpha Magnetic Spectrometer-2 (AMS), a high-pressure gas tank and additional spare parts for the Dextre robotic helper to the station. This will be the final spaceflight for Endeavour. For more information visit, www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts134/index.html. Photo credit: NASA/Jack Pfaller

CAPE CANAVERAL, Fla. -- The STS-134 crew answers media questions in the Press Site TV auditorium at NASA's Kennedy Space Center in Florida. From left, are Kennedy's News Chief Allard Beutel, Commander Mark Kelly, Pilot Greg H. Johnson, and Mission Specialists Michael Fincke, European Space Agency astronaut Roberto Vittori, Andrew Feustel, and Greg Chamitoff. The crew was scheduled to answer questions at Launch Pad 39A, where space shuttle Endeavour is awaiting liftoff, but severe storms associated with a frontal system passing over Central Florida brought the media event indoors. Endeavour's six crew members are at Kennedy for the launch countdown dress rehearsal called the Terminal Countdown Demonstration Test (TCDT) and related training. Targeted to launch April 19 at 7:48 p.m. EDT, they will deliver the Express Logistics Carrier-3, Alpha Magnetic Spectrometer-2 (AMS), a high-pressure gas tank, additional spare parts for the Dextre robotic helper and micrometeoroid debris shields to the International Space Station. This will be the final spaceflight for Endeavour. For more information visit, www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts134/index.html. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. - A post-landing news conference is held in the NASA Press Site auditorium at NASA's Kennedy Space Center in Florida after the picture-perfect landing of space shuttle Atlantis concluding the STS-129 mission. From left are NASA Public Affairs moderator Allard Beutel; Bill Gerstenmaier, associate administrator for Space Operations; Mike Moses, chair, Mission Management Team; and Mike Leinbach, space shuttle launch director. Main gear touchdown at Kennedy's Shuttle Landing Facility was at 9:44:23 a.m. EST. Nose gear touchdown was at 9:44:36 a.m., and wheels stop was at 9:45:05 a.m. Returning aboard Atlantis were STS-129 Commander Charles O. Hobaugh; Pilot Barry E. Wilmore; Mission Specialists Leland Melvin, Randy Bresnik, Mike Foreman and Robert L. Satcher Jr.; and Expedition 20 and 21 Flight Engineer Nicole Stott who spent 87 days aboard the International Space Station. STS-129 is the final space shuttle Expedition crew rotation flight on the manifest. On STS-129, the crew delivered 14 tons of cargo to the orbiting laboratory, including two ExPRESS Logistics Carriers containing spare parts to sustain station operations after the shuttles are retired next year. For information on the STS-129 mission and crew, visit http://www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts129/index.html. Photo credit: NASA/Jim Grossmann