Guests use their laptop computers to "Tweet" and follow a NASA STS-127 crew presentation on Twitter at the NASA Tweetup event held at NASA Headquarters, September 24, 2009 in Washington. Nearly 200 of NASA’s Twitter followers are in attendance. Photo Credit: (NASA/Carla Cioffi)

Canadian Space Agency Astronaut and STS-127 Mission Specialist Julie Payette answers questions at the NASA Tweetup event held at NASA Headquarters, September 24, 2009 in Washington. Nearly 200 of NASA’s Twitter followers are in attendance. Photo Credit: (NASA/Carla Cioffi)

NASA Astronaut and STS-127 Mission Commander Mark Polansky, left, answers questions at the NASA Tweetup event held at NASA Headquarters, September 24, 2009 in Washington. Nearly 200 of NASA’s Twitter followers are in attendance. Photo Credit: (NASA/Carla Cioffi)

NASA Astronaut and STS-127 Mission Commander Mark Polansky, also known as @Astro_127 on Twitter, answers questions at the NASA Tweetup event held at NASA Headquarters, September 24, 2009 in Washington. Nearly 200 of NASA’s Twitter followers are in attendance. Photo Credit: (NASA/Carla Cioffi)

Mike Leinbach, NASA Assistant Shuttle Launch Director for the STS-127 mission, monitors the launch countdown progress and local weather from Firing Room Four of the Launch Control Center at NASA's Kennedy Space Center in Cape Canaveral, Florida, Monday, July 13, 2009. The space shuttle Endeavour is set to launch at 6:51p.m. EDT with the crew of STS-127 and start a 16-day mission that will feature five spacewalks and complete construction of the Japan Aerospace Exploration Agency's Kibo laboratory. Photo Credit: (NASA/Bill Ingalls)

A NASA Security helicopter watches over the Astrovan as it takes the crew of STS-127 to the space shuttle Endeavour at pad 39a at NASA's Kennedy Space Center in Cape Canaveral, Florida, Sunday, July 12, 2009. Endeavour is set to launch at 7:13p.m. EDT with the crew of STS-127 and start a 16-day mission that will feature five spacewalks and complete construction of the Japan Aerospace Exploration Agency's Kibo laboratory. Photo Credit: (NASA/Bill Ingalls)

NASA Astronaut and STS-127 Mission Commander Mark Polansky, far left, answers questions at the NASA Tweetup event held at NASA Headquarters, September 24, 2009 in Washington. Nearly 200 of NASA’s Twitter followers are in attendance. Photo Credit: (NASA/Carla Cioffi)

STS-127 Commander Mark Polansky speaks to White House interns at the Eisenhower Executiive Office Building in Washington, Thursday, Sept. 24, 2009. Photo Credit: (NASA/Paul E. Alers)

Thomas Tate, a third grade student at Anne Beers Elementary school, asks a question following a presentation by the crew of STS-127, Thursday, Sept. 24, 2009, in Washington. Photo Credit: (NASA/Paul E. Alers)

Astronaut Mark Polansky, STS-127 mission commander, poses for a photograph by the front wheel of the space shuttle Endeavour shortly after it and its crew landed, Friday, July 31, 2009 at NASA's Kennedy Space Center in Cape Canaveral, Fla., completing a 16-day journey of more than 6.5 million miles. Endeavour delivered the final segment to the Japan Aerospace Exploration Agency's Kibo laboratory and a new crew member to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

STS-127 shuttle mission crew members from left, Commander Mark Polansky, Pilot Doug Hurley, Mission Specialists Christopher Cassidy, Tom Marshburn, Dave Wolf and Julie Payette of the Canadian Space Agency, give a presentation at the NASA Tweetup event held at NASA Headquarters, September 24, 2009 in Washington. The NASA Tweetup featured a presentation and a question and answer session with the crew of the STS-127 shuttle mission to install new hardware and expand the Japanese Kibo laboratory on the International Space Station. Photo Credit: (NASA/Carla Cioffi)

Canadian Space Agency astronaut Julie Payette, right, a mission specialist on STS-127, talks with two unidentified students during a visit to Anne Beers Elementary school, Thursday, Sept. 24, 2009, in Washington. Payette, along with the rest of the crew from STS-127, visited with students at the school Thursday. Photo Credit: (NASA/Paul E. Alers)

STS-127 Commander Mark Polansky, left, looks on as crew member David Wolf answer a question during a presentation to White House interns at the Eisenhower Executiive Office Building in Washington, Thursday, Sept. 24, 2009. Photo Credit: (NASA/Paul E. Alers)

Students, including Marcus Pratt, left, and Ajani Young, second from left, pay close attention as the crew from STS-127 makes their presentation during a visit to Anne Beers Elementary school, Thursday, Sept. 24, 2009, in Washington. Photo Credit: (NASA/Paul E. Alers)

Canadian Space Agency astronaut Julie Payette, a mission specialist on STS-127, talks about her experiences on the mission during a presentation at the Canadian Embassy in Washington on Tuesday, Sept. 22, 2009. Photo Credit: (NASA/Paul E. Alers)

NASA Associate Administrator for Space Operations William Gerstenmaier watches the latest weather radar from Firing Room Four of the Launch Control Center at NASA's Kennedy Space Center in Cape Canaveral, Florida, Sunday, July 12, 2009. Endeavour is set to launch at 7:13p.m. EDT with the crew of STS-127 and start a 16-day mission that will feature five spacewalks and complete construction of the Japan Aerospace Exploration Agency's Kibo laboratory. Photo Credit: (NASA/Bill Ingalls)

Bob Cabana, Director of NASA's Kennedy Space Center talks with other mission managers in Firing Room Four of the Launch Control Center at NASA's Kennedy Space Center in Cape Canaveral, Florida, Sunday, July 12, 2009. Endeavour is set to launch at 7:13p.m. EDT with the crew of STS-127 and start a 16-day mission that will feature five spacewalks and complete construction of the Japan Aerospace Exploration Agency's Kibo laboratory. Photo Credit: (NASA/Bill Ingalls)

NASA Shuttle Launch Director Michael Leinbach talks on the phone from Firing Room Four of the Launch Control Center at NASA's Kennedy Space Center in Cape Canaveral, Florida, Sunday, July 12, 2009. THe space shuttle Endeavour is set to launch at 7:13p.m. EDT with the crew of STS-127 and start a 16-day mission that will feature five spacewalks and complete construction of the Japan Aerospace Exploration Agency's Kibo laboratory. Photo Credit: (NASA/Bill Ingalls)

NASA mission managers watch the latest weather radar on a monitor in Firing Room Four of the Launch Control Center at NASA's Kennedy Space Center in Cape Canaveral, Florida, Sunday, July 12, 2009. Endeavour is set to launch at 7:13p.m. EDT with the crew of STS-127 and start a 16-day mission that will feature five spacewalks and complete construction of the Japan Aerospace Exploration Agency's Kibo laboratory. Photo Credit: (NASA/Bill Ingalls)

NASA Kennedy Space Center Security Officer, Jack "Supr Jac" Hilderbrand talks on the phone at the security gate to Pad 39a just a day shy of his 70th birthday and the planned launch of the space shuttle Endeavour with the STS-127 crew. Hilderbrand has been working for the space program since 1960. Photo Credit: (NASA/Bill Ingalls)

John P. Shannon, Manager, NASA Space Shuttle Program Office watches the latest weather radar in Firing Room Four of the Launch Control Center at NASA's Kennedy Space Center in Cape Canaveral, Florida, Sunday, July 12, 2009. Endeavour is set to launch at 7:13p.m. EDT with the crew of STS-127 and start a 16-day mission that will feature five spacewalks and complete construction of the Japan Aerospace Exploration Agency's Kibo laboratory. Photo Credit: (NASA/Bill Ingalls)

NASA Johnson Space Center Director Michael Coats monitors the launch team discussions on his headset from Firing Room Four of the Launch Control Center at NASA's Kennedy Space Center in Cape Canaveral, Florida, Sunday, July 12, 2009. The space shuttle Endeavour is set to launch at 7:13p.m. EDT with the crew of STS-127 and start a 16-day mission that will feature five spacewalks and complete construction of the Japan Aerospace Exploration Agency's Kibo laboratory. Photo Credit: (NASA/Bill Ingalls)

Mike Suffredini, NASA Manager, International Space Station (ISS) Program, talks with other NASA mission managers in from Firing Room Four of the Launch Control Center at NASA's Kennedy Space Center in Cape Canaveral, Florida, Sunday, July 12, 2009. The space shuttle Endeavour is set to launch at 7:13p.m. EDT with the crew of STS-127 and start a 16-day mission that will feature five spacewalks and complete construction of the Japan Aerospace Exploration Agency's Kibo laboratory. Photo Credit: (NASA/Bill Ingalls)

A warning sign is seen on the entrance to Firing Room Four of the Launch Control Center at NASA's Kennedy Space Center in Cape Canaveral, Florida, Sunday, July 12, 2009. The space shuttle Endeavour is set to launch at 7:13p.m. EDT with the crew of STS-127 and start a 16-day mission that will feature five spacewalks and complete construction of the Japan Aerospace Exploration Agency's Kibo laboratory. Photo Credit: (NASA/Bill Ingalls)

NASA mission managers watch the latest weather radar on a monitor in Firing Room Four of the Launch Control Center at NASA's Kennedy Space Center in Cape Canaveral, Florida, Sunday, July 12, 2009. Endeavour is set to launch at 7:13p.m. EDT with the crew of STS-127 and start a 16-day mission that will feature five spacewalks and complete construction of the Japan Aerospace Exploration Agency's Kibo laboratory. Photo Credit: (NASA/Bill Ingalls)

A NASA Security helicopter watches over the Astrovan as it takes the crew of STS-127 to the space shuttle Endeavour at pad 39a at NASA's Kennedy Space Center in Cape Canaveral, Florida, Saturday, July 12, 2009. Endeavour is set to launch at 7:13p.m. EDT with the crew of STS-127 and start a 16-day mission that will feature five spacewalks and complete construction of the Japan Aerospace Exploration Agency's Kibo laboratory. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Charles Bolden, left, welcomes home STS-127 Astronauts Dave Wolf, and Christopher Cassidy, right, shortly after the space shuttle Endeavour and its crew landed, Friday, July 31, 2009 at NASA's Kennedy Space Center in Cape Canaveral, Fla., completing a 16-day journey of more than 6.5 million miles. Endeavour delivered the final segment to the Japan Aerospace Exploration Agency's Kibo laboratory and a new crew member to the International Space Station.

STS-127 Commander Mark Polansky, center, speaks to students during a visit to Anne Beers Elementary school, Thursday, Sept. 24, 2009, in Washington. Polansky, along with the rest of the crew from STS-127, visited with students at the school Thursday. Seated from left are Canadian Space Agency astronaut Julie Payette, Chris Cassidy, Doug Hurley, David Wolf and Tom Marshburn. Photo Credit: (NASA/Paul E. Alers)

NASA Administrator Charles Bolden, left, STS-127 mission commander Mark Polansky, and NASA Kennedy Space Center Director Bob Cabana, right, walk around the space shuttle Endeavour shortly after it and its crew landed, Friday, July 31, 2009 at NASA's Kennedy Space Center in Cape Canaveral, Fla., completing a 16-day journey of more than 6.5 million miles. Endeavour delivered the final segment to the Japan Aerospace Exploration Agency's Kibo laboratory and a new crew member to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

STS-127 Commander Mark Polansky, left, shakes hands with Canadian Ambassador to the United States Michael Wilson after presenting him with a montage as Canadian Space Agency astronaut Julie Payette, seated center, looks on, Tuesday, Sept. 22, 2009, during a visit to the Canadian Embassy in Washington. Photo Credit: (NASA/Paul E. Alers)

STS-127 Commander Mark Polansky, at podium, speaks to White House interns at the Eisenhower Executiive Office Building in Washington, Thursday, Sept. 24, 2009. Seated from left are crew members Christopher Cassidy, David Wolf, Julie Payette, Douglas Hurley and Thomas Marshburn. Photo Credit: (NASA/Paul E. Alers)

STS-127 Commander Mark Polansky, at podium, speaks to White House interns at the Eisenhower Executiive Office Building in Washington, Thursday, Sept. 24, 2009. Seated from left are crew members Christopher Cassidy, David Wolf, Julie Payette, Douglas Hurley and Thomas Marshburn. Photo Credit: (NASA/Paul E. Alers)

STS-127 Commander Mark Polansky, at podium, speaks to White House interns at the Eisenhower Executiive Office Building in Washington, Thursday, Sept. 24, 2009. Seated from left are crew members Christopher Cassidy, David Wolf, Douglas Hurley and Thomas Marshburn. Photo Credit: (NASA/Paul E. Alers)

Canadian Space Agency astronaut Julie Payette, a mission specialist on STS-127, at podium, speaks to White House interns at the Eisenhower Executiive Office Building in Washington, Thursday, Sept. 24, 2009. Seated from left are crew members Christopher Cassidy, David Wolf, Mark Polansky, Douglas Hurley and Thomas Marshburn. Photo Credit: (NASA/Paul E. Alers)

STS-127 Commander Mark Polansky, standing left, talks about the recent mission to White House interns at the Eisenhower Executiive Office Building in Washington, Thursday, Sept. 24, 2009. Seated from left are crew members Julie Payette, Christopher Cassidy, David Wolf, Douglas Hurley and Thomas Marshburn. Photo Credit: (NASA/Paul E. Alers)

STS-127 Commander Mark Polansky, at podium, and crew member David Wolf, standing right, answer questions from White House interns at the Eisenhower Executiive Office Building in Washington, Thursday, Sept. 24, 2009. Seated from left are crew members Christopher Cassidy, Douglas Hurley and Thomas Marshburn. Photo Credit: (NASA/Paul E. Alers)

Ajani Young, a fourth grade student at Anne Beers Elementary school, at podium, introduces the crew of STS-127 during their visit, Thursday, Sept. 24, 2009, in Washington. Seated from left are crew members, Chris Cassidy, Doug Hurley, Commander Mark Polansky, David Wolf, Tom Marshburn and Canadian Space Agency astronaut Julie Payette. Photo Credit: (NASA/Paul E. Alers)

Students and teachers look on as STS-127 Commander Mark Polansky, seated left on stage talks about the mission to the International Space Station as other crew members Chris Cassidy, Doug Hurley, David Wolf, Tom Marshburn looks on during a visit to Anne Beers Elementary school, Thursday, Sept. 24, 2009, in Washington. Photo Credit: (NASA/Paul E. Alers)

NASA Astronaut and Mission Speciliast Tom Marshburn answers questions at the NASA Tweetup event held at NASA Headquarters, September 24, 2009 in Washington. Nearly 200 of NASA’s Twitter followers are in attendance. Photo Credit: (NASA/Carla Cioffi)

CAPE CANAVERAL, Fla. – One of the solid rocket booster segments for space shuttle Endeavour's STS-127 mission is in the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida for stacking. The mission is targeted for launch in June. Photo credit: NASA/Tim Jacobs

The space shuttle Endeavour and its crew land, Friday, July 31, 2009 at NASA's Kennedy Space Center in Cape Canaveral, Florida, completing a 16-day journey of more than 6.5 million miles. Endeavour delivered the final segment to the Japan Aerospace Exploration Agency's Kibo laboratory and a new crew member to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

NASA Astronaut and Mission Specialist Dave Wolf, center, answers questions at the NASA Tweetup event held at NASA Headquarters, September 24, 2009 in Washington. Nearly 200 of NASA’s Twitter followers are in attendance. Photo Credit: (NASA/Carla Cioffi)

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, external fuel tank ET-131 moves toward the Vehicle Assembly Building. The tank, which will be used on the STS-127 mission, will be moved to a high bay for checkout. The Japanese Experiment Module's Experiment Logistics Module-Exposed Section, or ELM-ES, is part of the payload on the STS-127 mission, targeted for launch in June. Photo credit: NASA/Tim Jacobs

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, external fuel tank ET-131 moves toward the Vehicle Assembly Building. The tank, which will be used on the STS-127 mission, will be transported to a high bay for checkout. The Japanese Experiment Module's Experiment Logistics Module-Exposed Section, or ELM-ES, is part of the payload on the STS-127 mission, targeted for launch in June. Photo credit: NASA/Tim Jacobs

CAPE CANAVERAL, Fla. – At the turn basin at NASA's Kennedy Space Center in Florida, external fuel tank ET-131 has been moved out of the Pegasus barge. The tank, which will be used on the STS-127 mission, will be transported to a high bay in the Vehicle Assembly Building for checkout. The Japanese Experiment Module's Experiment Logistics Module-Exposed Section, or ELM-ES, is part of the payload on the STS-127 mission, targeted for launch in June. Photo credit: NASA/Tim Jacobs

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, external fuel tank ET-131 moves from the turn basis to the Vehicle Assembly Building, behind it. The tank, which will be used on the STS-127 mission, will be transported to a high bay for checkout. The Japanese Experiment Module's Experiment Logistics Module-Exposed Section, or ELM-ES, is part of the payload on the STS-127 mission, targeted for launch in June. Photo credit: NASA/Tim Jacobs

CAPE CANAVERAL, Fla. – At the turn basin at NASA's Kennedy Space Center in Florida, external fuel tank ET-131 is moved out of the Pegasus barge. The tank, which will be used on the STS-127 mission, will be transported to a high bay in the Vehicle Assembly Building for checkout. The Japanese Experiment Module's Experiment Logistics Module-Exposed Section, or ELM-ES, is part of the payload on the STS-127 mission, targeted for launch in June. Photo credit: NASA/Tim Jacobs

CAPE CANAVERAL, Fla. – At the turn basin at NASA's Kennedy Space Center in Florida, external fuel tank ET-131 is moved out of the Pegasus barge. The tank, which will be used on the STS-127 mission, will be transported to a high bay in the Vehicle Assembly Building for checkout. The Japanese Experiment Module's Experiment Logistics Module-Exposed Section, or ELM-ES, is part of the payload on the STS-127 mission, targeted for launch in June. Photo credit: NASA/Tim Jacobs

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, tugboats maneuver the Pegasus barge toward the dock. Pegasus holds the external fuel tank ET-131. The tank will be taken off and moved to the Vehicle Assembly Building. ET-131 will be used on space shuttle Endeavour's STS-127 mission. The Japanese Experiment Module's Experiment Logistics Module-Exposed Section, or ELM-ES, is part of the payload on the STS-127 mission, targeted for launch in June. Photo credit: NASA/Tim Jacobs

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, external fuel tank ET-131 moves into the transfer aisle of the Vehicle Assembly Building. The tank, which will be used on the STS-127 mission, will be lifted into a high bay for checkout. The Japanese Experiment Module's Experiment Logistics Module-Exposed Section, or ELM-ES, is part of the payload on the STS-127 mission, targeted for launch in June. Photo credit: NASA/Tim Jacobs

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, the Pegasus barge has docked at the turn basin. Pegasus holds the external fuel tank ET-131. The tank will be taken off and moved to the Vehicle Assembly Building. ET-131 will be used on space shuttle Endeavour's STS-127 mission.The Japanese Experiment Module's Experiment Logistics Module-Exposed Section, or ELM-ES, is part of the payload on the STS-127 mission, targeted for launch in June. Photo credit: NASA/Tim Jacobs

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, external fuel tank ET-131 moves into the transfer aisle of the Vehicle Assembly Building. The tank, which will be used on the STS-127 mission, will be lifted into a high bay for checkout. The Japanese Experiment Module's Experiment Logistics Module-Exposed Section, or ELM-ES, is part of the payload on the STS-127 mission, targeted for launch in June. Photo credit: NASA/Tim Jacobs

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, the Pegasus barge arrives in the turn basin to deliver its cargo of the external fuel tank ET-131. The tank will be taken off and moved to the Vehicle Assembly Building. ET-131 will be used on space shuttle Endeavour's STS-127 mission. The Japanese Experiment Module's Experiment Logistics Module-Exposed Section, or ELM-ES, is part of the payload on the STS-127 mission, targeted for launch in June. Photo credit: NASA/Tim Jacobs

CAPE CANAVERAL, Fla. –– Space shuttle Atlantis on Launch Pad 39A is viewed across the lagoon at NASA's Kennedy Space Center in Florida. Atlantis is targeted to launch May 12 on the STS-125 mission to upgrade NASA's Hubble Space Telescope. Endeavour will be prepared on the pad for liftoff in the unlikely event that a rescue mission is necessary following space shuttle Atlantis' launch May 12 on the STS-125 mission to upgrade NASA's Hubble Space Telescope. After Atlantis is cleared to land, Endeavour will move to Launch Pad 39A for its upcoming STS-127 mission to the International Space Station, targeted to launch June 13. Photo credit: NASA/Jack Pfaller

CAPE CANAVERAL, Fla. –– Seen on Launch Pads 39A and 39B at NASA's Kennedy Space Center in Florida are shuttles on both pads. At left is space shuttle Atlantis, poised for the STS-125 mission targeted to launch May 12, and at right is space shuttle Endeavour. Endeavour will be prepared on the pad for liftoff in the unlikely event that a rescue mission is necessary following space shuttle Atlantis' launch May 12 on the STS-125 mission to upgrade NASA's Hubble Space Telescope. After Atlantis is cleared to land, Endeavour will move to Launch Pad 39A for its upcoming STS-127 mission to the International Space Station, targeted to launch June 13. Photo credit: NASA/Jack Pfaller

CAPE CANAVERAL, Fla. –– Space shuttle Atlantis on Launch Pad 39A is viewed across the lagoon at NASA's Kennedy Space Center in Florida. Atlantis is targeted to launch May 12 on the STS-125 mission to upgrade NASA's Hubble Space Telescope. Endeavour will be prepared on the pad for liftoff in the unlikely event that a rescue mission is necessary following space shuttle Atlantis' launch May 12 on the STS-125 mission to upgrade NASA's Hubble Space Telescope. After Atlantis is cleared to land, Endeavour will move to Launch Pad 39A for its upcoming STS-127 mission to the International Space Station, targeted to launch June 13. Photo credit: NASA/Jack Pfaller

ISS020-E-024567 (25 July 2009) --- Astronaut Mark Polansky, STS-127 commander, places the STS-127 patch above a hatch in the Kibo laboratory, which adds to the growing collection of insignias representing crews who have lived and worked on the International Space Station.

STS-127 Post-Insertion Training. Building 9 - CCT II mockup.

STS-127 astronauts Chris Cassidy and Tom Marshburn during STS-127 2J/INC-19 EVA 4 training at the NBL Location: SCTF, NBL

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility bay 2 at NASA's Kennedy Space Center in Florida, a worker inside space shuttle Endeavour checks the area where the new window will be installed. Endeavour is the designated launch vehicle for the STS-127 mission. The Japanese Experiment Module's Experiment Logistics Module-Exposed Section, or ELM-ES, is part of the payload on the mission, targeted for launch on May 15. Photo credit: NASA/Tim Jacobs

NASA Kennedy Space Center Director Bob Cabana, left, and NASA Administrator Charles Bolden walk to welcome home the crew of the space shuttle Endeavour shortly after it and its crew landed, Friday, July 31, 2009 at NASA's Kennedy Space Center in Cape Canaveral, Florida, completing a 16-day journey of more than 6.5 million miles. Endeavour delivered the final segment to the Japan Aerospace Exploration Agency's Kibo laboratory and a new crew member to the International Space Station.

Benoit Marcotte, Director General of Canadian Space Agency Operations, left, welcomes home Canadian Space Agency's Julie Payette, right, shortly after the space shuttle Endeavour and its crew landed, Friday, July 31, 2009 at NASA's Kennedy Space Center in Cape Canaveral, Fla., completing a 16-day journey of more than 6.5 million miles. Endeavour delivered the final segment to the Japan Aerospace Exploration Agency's Kibo laboratory and a new crew member to the International Space Station.

Storm clouds roll in over the NASA Vehicle Assembly building moments after STS-127 Space Shuttle Launch Director Pete Nickolenko and the launch team called the launch a "No Go" due to weather conditions at the NASA Kennedy Space Center in Cape Canaveral, Florida, Sunday, July 12, 2009. Endeavour will be launching with the crew of STS-127 on a 16-day mission that will feature five spacewalks and complete construction of the Japan Aerospace Exploration Agency's Kibo laboratory. Photo Credit: (NASA/Bill Ingalls)

The NASA Vehicle Assembly Building is seen through a rain covered windshield at NASA's Kennedy Space Center in Florida on Friday, July 10, 2009. NASA is set to launch the space shuttle Endeavour with the crew of STS-127 on Saturday. Photo Credit: (NASA/Bill Ingalls)

The space shuttle Endeavour is seen at launch pad 39A at NASA's Kennedy Space Center in Cape Canaveral, Florida on Saturday, July 11, 2009. NASA is hopeful that Endeavour will launch with the crew of STS-127 on Sunday. Photo Credit: (NASA/Bill Ingalls)

The space shuttle Endeavour is seen at launch pad 39A at NASA's Kennedy Space Center in Cape Canaveral, Florida on Saturday, July 11, 2009. NASA is hopeful that Endeavour will launch with the crew of STS-127 on Sunday. Photo Credit: (NASA/Bill Ingalls)

JSC2008-E-122436 (7 Oct. 2008) --- Astronaut Tim Kopra, STS-127 mission specialist, participates in a training session in one of the full-scale trainers in the Space Vehicle Mockup Facility at NASA's Johnson Space Center. Attired in a training version of his shuttle launch and entry suit, Kopra is seated on the middeck for a post insertion/de-orbit training session. Kopra is scheduled to join Expedition 19 as flight engineer after launching to the International Space Station with the STS-127 crew.

JSC2008-E-122456 (7 Oct. 2008) --- Attired in a training version of his shuttle launch and entry suit, astronaut Tim Kopra, STS-127 mission specialist, participates in a training session in one of the full-scale trainers in the Space Vehicle Mockup Facility at NASA's Johnson Space Center. Kopra is scheduled to join Expedition 19 as flight engineer after launching to the International Space Station with the STS-127 crew.

JSC2008-E-122445 (7 Oct. 2008) --- Astronaut Tim Kopra, STS-127 mission specialist, participates in a training session in one of the full-scale trainers in the Space Vehicle Mockup Facility at NASA's Johnson Space Center. Attired in a training version of his shuttle launch and entry suit, Kopra is seated on the middeck for a post insertion/de-orbit training session. Kopra is scheduled to join Expedition 19 as flight engineer after launching to the International Space Station with the STS-127 crew.

JSC2008-E-122420 (7 Oct. 2008) --- Astronaut Tim Kopra, STS-127 mission specialist, dons a training version of his shuttle launch and entry suit in preparation for a training session in the Space Vehicle Mock-up Facility at NASA's Johnson Space Center. Kopra is scheduled to join Expedition 19 as flight engineer after launching to the International Space Station with the STS-127 crew.

JSC2008-E-139790 (12 Nov. 2008) --- Astronaut Tim Kopra, STS-127 mission specialist, attired in a training version of his shuttle launch and entry suit, awaits the start of a training session in the Space Vehicle Mock-up Facility at NASA's Johnson Space Center. Kopra is scheduled to join Expedition 19 as flight engineer after launching to the International Space Station with the STS-127 crew.

JSC2008-E-139816 (12 Nov. 2008) --- Astronaut Tim Kopra (left), Canadian Space Agency astronaut Julie Payette, and astronaut Dave Wolf, all STS-127 mission specialists, attired in training versions of their shuttle launch and entry suits, await the start of a training session in the Space Vehicle Mock-up Facility at NASA's Johnson Space Center. Kopra is scheduled to join Expedition 19 as flight engineer after launching to the International Space Station with the STS-127 crew.

JSC2008-E-139808 (12 Nov. 2008) --- NASA astronauts Tom Marshburn (left), Tim Kopra and Canadian Space Agency astronaut Julie Payette, all STS-127 mission specialists, attired in training versions of their shuttle launch and entry suits, await the start of a training session in the Space Vehicle Mock-up Facility at NASA's Johnson Space Center. Kopra is scheduled to join Expedition 19 as flight engineer after launching to the International Space Station with the STS-127 crew.

CAPE CANAVERAL, Fla. –– Sunlight spotlights space shuttle Endeavour poised on Launch Pad 39B at NASA's Kennedy Space Center in Florida. In the foreground is the railway that services Kennedy. Surrounding the pad are the lightning towers erected for NASA's Constellation Program, which will use the pad for Ares rocket launches. Endeavour will be prepared on the pad for liftoff in the unlikely event that a rescue mission is necessary following space shuttle Atlantis' launch May 12 on the STS-125 mission to upgrade NASA's Hubble Space Telescope. After Atlantis is cleared to land, Endeavour will move to Launch Pad 39A for its upcoming STS-127 mission to the International Space Station, targeted to launch June 13. Photo credit: NASA/Jack Pfaller

Storm clouds approach Launch Pad 39A at NASA's Kennedy Space Center in Florida on Friday, July 10, 2009 as space shuttle Endeavour stands awaiting Saturday's planned launch of the STS-127 mission. Photo Credit: (NASA/Bill Ingalls)

Storm clouds approach Launch Pad 39A at NASA's Kennedy Space Center in Florida on Friday, July 10, 2009 as space shuttle Endeavour stands awaiting Saturday's planned launch of the STS-127 mission. Photo Credit: (NASA/Bill Ingalls)

STS-127 Crew Return, Ellington Field Location: Ellington, 990

The space shuttle Endeavour and its crew land, Friday, July 31, 2009 at NASA's Kennedy Space Center in Cape Canaveral, Florida, completing a 16-day journey of more than 6.5 million miles. Endeavour delivered the final segment to the Japan Aerospace Exploration Agency's Kibo laboratory and a new crew member to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

ISS020-E-021324 (17 July 2009) --- This view of the Space Shuttle Endeavour was provided by an Expedition 20 crewmember during a survey of the approaching vehicle prior to docking with the International Space Station. As part of the survey and part of every mission's activities, the STS-127 Endeavour crew performed a back-flip for the rendezvous pitch maneuver (RPM).

ISS020-E-021323 (17 July 2009) --- This view of the Space Shuttle Endeavour was provided by an Expedition 20 crewmember during a survey of the approaching vehicle prior to docking with the International Space Station. As part of the survey and part of every mission's activities, the STS-127 Endeavour crew performed a back-flip for the rendezvous pitch maneuver (RPM).

ISS020-E-021317 (17 July 2009) --- This view of the Space Shuttle Endeavour was provided by an Expedition 20 crewmember during a survey of the approaching vehicle prior to docking with the International Space Station. As part of the survey and part of every mission's activities, the STS-127 Endeavour crew performed a back-flip for the rendezvous pitch maneuver (RPM).

ISS020-E-021320 (17 July 2009) --- This view of the Space Shuttle Endeavour was provided by an Expedition 20 crewmember during a survey of the approaching vehicle prior to docking with the International Space Station. As part of the survey and part of every mission's activities, the STS-127 Endeavour crew performed a back-flip for the rendezvous pitch maneuver (RPM).

ISS020-E-021261 (17 July 2009) --- This view of the Space Shuttle Endeavour was provided by an Expedition 20 crewmember during a survey of the approaching vehicle prior to docking with the International Space Station. As part of the survey and part of every mission's activities, the STS-127 Endeavour crew performed a back-flip for the rendezvous pitch maneuver (RPM).

ISS020-E-021321 (17 July 2009) --- This view of the Space Shuttle Endeavour was provided by an Expedition 20 crewmember during a survey of the approaching vehicle prior to docking with the International Space Station. As part of the survey and part of every mission's activities, the STS-127 Endeavour crew performed a back-flip for the rendezvous pitch maneuver (RPM).

ISS020-E-021315 (17 July 2009) --- This view of the Space Shuttle Endeavour was provided by an Expedition 20 crewmember during a survey of the approaching vehicle prior to docking with the International Space Station. As part of the survey and part of every mission's activities, the STS-127 Endeavour crew performed a back-flip for the rendezvous pitch maneuver (RPM).

ISS020-E-023362 (22 July 2009) --- Astronaut Christopher Cassidy waves toward his spacewalking colleague, astronaut Dave Wolf, during the third session of extravehicular activity for the STS-127 crew to perform work, in cooncert with the Expedition 20 crew on the International Space Station.

ISS020-E-021319 (17 July 2009) --- This view of the Space Shuttle Endeavour was provided by an Expedition 20 crewmember during a survey of the approaching vehicle prior to docking with the International Space Station. As part of the survey and part of every mission's activities, the STS-127 Endeavour crew performed a back-flip for the rendezvous pitch maneuver (RPM).

ISS020-E-021316 (17 July 2009) --- This view of the Space Shuttle Endeavour was provided by an Expedition 20 crewmember during a survey of the approaching vehicle prior to docking with the International Space Station. As part of the survey and part of every mission's activities, the STS-127 Endeavour crew performed a back-flip for the rendezvous pitch maneuver (RPM).

CAPE CANAVERAL, Fla. – On Launch Pad 39A at NASA's Kennedy Space Center in Florida, technicians in the control booth get ready to roll the rotating service structure, or RSS, above them away from space shuttle Endeavour. First motion was at 10:39 a.m. EDT. The rollback is in preparation for Endeavour's liftoff June 13 on the STS-127 mission with a crew of seven. The rotating structure provides protected access to the shuttle for changeout and servicing of payloads at the pad. It is supported by a rotating bridge that pivots on a vertical axis on the west side of the pad's flame trench. After the RSS is rolled back, the orbiter is ready for fuel cell activation and external tank cryogenic propellant loading operations. The launch will be Endeavour's 23rd flight. The shuttle will carry the Japanese Experiment Module's Exposed Facility, or JEM-EF, and the Experiment Logistics Module-Exposed Section, or ELM-ES, on STS-127. The mission is the final of three flights dedicated to the assembly of the Japan Aerospace Exploration Agency's Kibo laboratory complex on the space station. Endeavour's launch is scheduled for June 13 at 7:17 a.m. EDT. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – On Launch Pad 39A at NASA's Kennedy Space Center in Florida, technicians in the control booth roll the rotating service structure, or RSS, away from space shuttle Endeavour. First motion was at 10:39 a.m. EDT. The rollback is in preparation for Endeavour's liftoff June 13 on the STS-127 mission with a crew of seven. The rotating structure provides protected access to the shuttle for changeout and servicing of payloads at the pad. It is supported by a rotating bridge that pivots on a vertical axis on the west side of the pad's flame trench. After the RSS is rolled back, the orbiter is ready for fuel cell activation and external tank cryogenic propellant loading operations. The launch will be Endeavour's 23rd flight. The shuttle will carry the Japanese Experiment Module's Exposed Facility, or JEM-EF, and the Experiment Logistics Module-Exposed Section, or ELM-ES, on STS-127. The mission is the final of three flights dedicated to the assembly of the Japan Aerospace Exploration Agency's Kibo laboratory complex on the space station. Endeavour's launch is scheduled for June 13 at 7:17 a.m. EDT. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – On Launch Pad 39A at NASA's Kennedy Space Center in Florida, space shuttle Endeavour is revealed after the rollback of the rotating service structure, or RSS. In the foreground is the flame trench, which the mobile launcher platform straddles. On top of the external fuel tank is the oxygen vent hood, called the "beanie cap," which is designed to vent gaseous oxygen vapors away from the shuttle. The rollback is preparation for Endeavour's liftoff June 13 on the STS-127 mission with a crew of seven. First motion was at 10:39 a.m. EDT and completed at 11:18 a.m. The rotating structure provides protected access to the shuttle for changeout and servicing of payloads at the pad. It is supported by a rotating bridge that pivots on a vertical axis on the west side of the pad's flame trench. After the RSS is rolled back, the orbiter is ready for fuel cell activation and external tank cryogenic propellant loading operations. The launch will be Endeavour's 23rd flight. The shuttle will carry the Japanese Experiment Module's Exposed Facility, or JEM-EF, and the Experiment Logistics Module-Exposed Section, or ELM-ES, on STS-127. The mission is the final of three flights dedicated to the assembly of the Japan Aerospace Exploration Agency's Kibo laboratory complex on the space station. Endeavour's launch is scheduled for June 13 at 7:17 a.m. EDT. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – Visible after rollback of the rotating service structure and looming like giants against the sky are the solid rocket boosters, external tank and space shuttle Endeavour, poised for launch on Launch Pad 39A at NASA's Kennedy Space Center in Florida. Near the top of Endeavour is the White Room, at the end of the orbiter access arm. The White Room provides entry into the shuttle for the astronauts. The rollback is preparation for Endeavour's liftoff June 13 on the STS-127 mission with a crew of seven. First motion was at 10:39 a.m. EDT and completed at 11:18 a.m. The rotating structure provides protected access to the shuttle for changeout and servicing of payloads at the pad. It is supported by a rotating bridge that pivots on a vertical axis on the west side of the pad's flame trench. After the RSS is rolled back, the orbiter is ready for fuel cell activation and external tank cryogenic propellant loading operations. The launch will be Endeavour's 23rd flight. The shuttle will carry the Japanese Experiment Module's Exposed Facility, or JEM-EF, and the Experiment Logistics Module-Exposed Section, or ELM-ES, on STS-127. The mission is the final of three flights dedicated to the assembly of the Japan Aerospace Exploration Agency's Kibo laboratory complex on the space station. Endeavour's launch is scheduled for June 13 at 7:17 a.m. EDT. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – On Launch Pad 39A at NASA's Kennedy Space Center in Florida, the oxygen vent hood, called the "beanie cap," is positioned above the external fuel tank of space shuttle Endeavour following the rollback of the rotating service structure, or RSS, at left. The beanie cap is designed to vent gaseous oxygen vapors away from the shuttle. The rollback is preparation for Endeavour's liftoff June 13 on the STS-127 mission with a crew of seven. First motion was at 10:39 a.m. EDT and completed at 11:18 a.m. The rotating structure provides protected access to the shuttle for changeout and servicing of payloads at the pad. It is supported by a rotating bridge that pivots on a vertical axis on the west side of the pad's flame trench. After the RSS is rolled back, the orbiter is ready for fuel cell activation and external tank cryogenic propellant loading operations. The launch will be Endeavour's 23rd flight. The shuttle will carry the Japanese Experiment Module's Exposed Facility, or JEM-EF, and the Experiment Logistics Module-Exposed Section, or ELM-ES, on STS-127. The mission is the final of three flights dedicated to the assembly of the Japan Aerospace Exploration Agency's Kibo laboratory complex on the space station. Endeavour's launch is scheduled for June 13 at 7:17 a.m. EDT. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – After rollback of the rotating service structure on Launch Pad 39A at NASA's Kennedy Space Center in Florida, space shuttle Endeavour, with its external fuel tank and solid rocket boosters, are poised for launch. The rollback is preparation for Endeavour's liftoff June 13 on the STS-127 mission with a crew of seven. First motion was at 10:39 a.m. EDT and completed at 11:18 a.m. The rotating structure provides protected access to the shuttle for changeout and servicing of payloads at the pad. It is supported by a rotating bridge that pivots on a vertical axis on the west side of the pad's flame trench. After the RSS is rolled back, the orbiter is ready for fuel cell activation and external tank cryogenic propellant loading operations. The launch will be Endeavour's 23rd flight. The shuttle will carry the Japanese Experiment Module's Exposed Facility, or JEM-EF, and the Experiment Logistics Module-Exposed Section, or ELM-ES, on STS-127. The mission is the final of three flights dedicated to the assembly of the Japan Aerospace Exploration Agency's Kibo laboratory complex on the space station. Endeavour's launch is scheduled for June 13 at 7:17 a.m. EDT. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – The open rotating service structure, or RSS (left), on Launch Pad 39A at NASA's Kennedy Space Center in Florida reveals space shuttle Endeavour poised for launch. The RSS was rotated to its open position in preparation for Endeavour's liftoff June 13 on the STS-127 mission with a crew of seven. First motion was at 10:39 a.m. EDT and completed at 11:18 a.m. The rotating structure provides protected access to the shuttle for changeout and servicing of payloads at the pad. It is supported by a rotating bridge that pivots on a vertical axis on the west side of the pad's flame trench. After the RSS is rolled back, the orbiter is ready for fuel cell activation and external tank cryogenic propellant loading operations. The launch will be Endeavour's 23rd flight. The shuttle will carry the Japanese Experiment Module's Exposed Facility, or JEM-EF, and the Experiment Logistics Module-Exposed Section, or ELM-ES, on STS-127. The mission is the final of three flights dedicated to the assembly of the Japan Aerospace Exploration Agency's Kibo laboratory complex on the space station. Endeavour's launch is scheduled for June 13 at 7:17 a.m. EDT. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – On Launch Pad 39A at NASA's Kennedy Space Center in Florida, space shuttle Endeavour is revealed after the rollback of the rotating service structure, or RSS. On the left of Endeavour is the White Room, at the end of the orbiter access arm. The White Room provides entry into the shuttle for the astronauts. The rollback is preparation for Endeavour's liftoff June 13 on the STS-127 mission with a crew of seven. First motion was at 10:39 a.m. EDT and completed at 11:18 a.m. The rotating structure provides protected access to the shuttle for changeout and servicing of payloads at the pad. It is supported by a rotating bridge that pivots on a vertical axis on the west side of the pad's flame trench. After the RSS is rolled back, the orbiter is ready for fuel cell activation and external tank cryogenic propellant loading operations. The launch will be Endeavour's 23rd flight. The shuttle will carry the Japanese Experiment Module's Exposed Facility, or JEM-EF, and the Experiment Logistics Module-Exposed Section, or ELM-ES, on STS-127. The mission is the final of three flights dedicated to the assembly of the Japan Aerospace Exploration Agency's Kibo laboratory complex on the space station. Endeavour's launch is scheduled for June 13 at 7:17 a.m. EDT. Photo credit: NASA/Jim Grossmann

S127-E-009733 (28 July 2009) --- The STS-127 and Expedition 20 crew members pose for a group portrait in the Harmony node of the International Space Station while the Space Shuttle Endeavour remains docked with the station. Pictured from the left (front row) are NASA astronauts Michael Barratt, Expedition 20 flight engineer; Mark Polansky, STS-127 commander; cosmonaut Gennady Padalka, Expedition 20 commander; and NASA astronaut Dave Wolf, STS-127 mission specialist. Pictured from the left (middle row) are Japan Aerospace Exploration Agency (JAXA) astronaut Koichi Wakata, STS-127 mission specialist; Canadian Space Agency astronauts Julie Payette, STS-127 mission specialist; and Robert Thirsk, Expedition 20 flight engineer; and NASA astronaut Tom Marshburn, STS-127 mission specialist. Pictured from the left (back row) are cosmonaut Roman Romanenko, Expedition 20 flight engineer; NASA astronauts Christopher Cassidy, STS-127 mission specialist; Doug Hurley, STS-127 pilot; Tim Kopra, Expedition 20 flight engineer; and European Space Agency astronaut Frank De Winne, Expedition 20 flight engineer.

JSC2008-E-139796 (12 Nov. 2008) --- Astronauts Tim Kopra (left), Dave Wolf and Christopher Cassidy (mostly obscured), all STS-127 mission specialists, participate in a training session in one of the full-scale trainers in the Space Vehicle Mock-up Facility at NASA's Johnson Space Center. Attired in training versions of their shuttle launch and entry suits, the three are seated on the middeck for a post insertion/de-orbit training session. United Space Alliance (USA) suit technician Raymond Cuevas (kneeling at right) assisted the crewmembers. Kopra is scheduled to join Expedition 19 as flight engineer after launching to the International Space Station with the STS-127 crew.

JSC2008-E-139797 (12 Nov. 2008) --- Astronauts Tim Kopra (left), Dave Wolf (partially obscured) and Christopher Cassidy (mostly obscured), all STS-127 mission specialists, participate in a training session in one of the full-scale trainers in the Space Vehicle Mock-up Facility at NASA's Johnson Space Center. Attired in training versions of their shuttle launch and entry suits, the three are seated on the middeck for a post insertion/de-orbit training session. United Space Alliance (USA) suit technician Raymond Cuevas assisted the crewmembers. Kopra is scheduled to join Expedition 19 as flight engineer after launching to the International Space Station with the STS-127 crew.

PHOTO DATE: 11-03-08 LOCATION: BLDG 9NW SUBJECT: Place on IO/STS Missions/STS-127/Preflight. Notify Mike Gentry, Kathy Strawn, Nicole Cloutier and Mark Polansky when posted PHOTOGRAPHER: BILL STAFFORD X34753