PHOTO DATE: 05-28-09 LOCATION: Bldg 9NW, FFT SUBJECT: Photographic coverage of STS-129 Preflight Training. Suited payload egress training. PHOTOGRAPHER: James Blair

PHOTO DATE: 05-28-09 LOCATION: Bldg 9NW, FFT SUBJECT: Photographic coverage of STS-129 Preflight Training. Suited payload egress training. PHOTOGRAPHER: James Blair

PHOTO DATE: 05-28-09 LOCATION: Bldg 9NW, FFT SUBJECT: Photographic coverage of STS-129 Preflight Training. Suited payload egress training. PHOTOGRAPHER: James Blair

PHOTO DATE: 05-28-09 LOCATION: Bldg 9NW, FFT SUBJECT: Photographic coverage of STS-129 Preflight Training. Suited payload egress training. PHOTOGRAPHER: James Blair

PHOTO DATE: 05-28-09 LOCATION: Bldg 9NW, FFT SUBJECT: Photographic coverage of STS-129 Preflight Training. Suited payload egress training. PHOTOGRAPHER: James Blair

PHOTO DATE: 05-28-09 LOCATION: Bldg 9NW, FFT SUBJECT: Photographic coverage of STS-129 Preflight Training. Suited payload egress training. PHOTOGRAPHER: James Blair

PHOTO DATE: 05-28-09 LOCATION: Bldg 9NW, FFT SUBJECT: Photographic coverage of STS-129 Preflight Training. Suited payload egress training. PHOTOGRAPHER: James Blair

PHOTO DATE: 05-28-09 LOCATION: Bldg 9NW, FFT SUBJECT: Photographic coverage of STS-129 Preflight Training. Suited payload egress training. PHOTOGRAPHER: James Blair

PHOTO DATE: 05-28-09 LOCATION: Bldg 9NW, FFT SUBJECT: Photographic coverage of STS-129 Preflight Training. Suited payload egress training. PHOTOGRAPHER: James Blair

PHOTO DATE: 05-28-09 LOCATION: Bldg 9NW, FFT SUBJECT: Photographic coverage of STS-129 Preflight Training. Suited payload egress training. PHOTOGRAPHER: James Blair

PHOTO DATE: 05-28-09 LOCATION: Bldg 9NW, FFT SUBJECT: Photographic coverage of STS-129 Preflight Training. Suited payload egress training. PHOTOGRAPHER: James Blair

PHOTO DATE: 05-28-09 LOCATION: Bldg 9NW, FFT SUBJECT: Photographic coverage of STS-129 Preflight Training. Suited payload egress training. PHOTOGRAPHER: James Blair

PHOTO DATE: 05-28-09 LOCATION: Bldg 9NW, FFT SUBJECT: Photographic coverage of STS-129 Preflight Training. Suited payload egress training. PHOTOGRAPHER: James Blair

PHOTO DATE: 05-28-09 LOCATION: Bldg 9NW, FFT SUBJECT: Photographic coverage of STS-129 Preflight Training. Suited payload egress training. PHOTOGRAPHER: James Blair

PHOTO DATE: 05-28-09 LOCATION: Bldg 9NW, FFT SUBJECT: Photographic coverage of STS-129 Preflight Training. Suited payload egress training. PHOTOGRAPHER: James Blair

PHOTO DATE: 05-28-09 LOCATION: Bldg 9NW, FFT SUBJECT: Photographic coverage of STS-129 Preflight Training. Suited payload egress training. PHOTOGRAPHER: James Blair

PHOTO DATE: 05-28-09 LOCATION: Bldg 9NW, FFT SUBJECT: Photographic coverage of STS-129 Preflight Training. Suited payload egress training. PHOTOGRAPHER: James Blair

PHOTO DATE: 05-28-09 LOCATION: Bldg 9NW, FFT SUBJECT: Photographic coverage of STS-129 Preflight Training. Suited payload egress training. PHOTOGRAPHER: James Blair

Twitter users Risa Wechster from Stanford University, left, and Daniel Holz from Los Alamos, both twitter for @cosmicvariance during a two-day NASA Tweetup event held at NASA's Kennedy Space Center in Cape Canaveral, Fla, Sunday, Nov. 15, 2009. NASA Twitter followers in attendance will have the opportunity to take a tour of NASA's Kennedy Space Center, view the STS-129 space shuttle launch and speak with shuttle technicians, engineers, astronauts and managers. Photo Credit: (NASA/Carla Cioffi)

Twitter user Karim Jazouani from Casablanca, Morocco, who goes by the twitter name @karimjazouani, uses his laptop during a two-day NASA Tweetup event held at NASA's Kennedy Space Center in Cape Canaveral, Fla, Sunday, Nov. 15, 2009. NASA Twitter followers in attendance will have the opportunity to take a tour of NASA's Kennedy Space Center, view the space shuttle launch and speak with shuttle technicians, engineers, astronauts and managers. Photo Credit: (NASA/Carla Cioffi)

NASA Twitter follower Heather Goss from Washington, DC, who goes by the twitter name @heathermg, twitters as she stands in front of space shuttle Atlantis at launch pad 39A as part of during a tour of Kennedy Space Center in Cape Canaveral, Fla, Sunday, Nov. 15, 2009. Space shuttle Atlantis is set to launch on Monday, Nov. 16, 2009 and dock with the International Space Station (ISS) two days later. Photo Credit: (NASA/Carla Cioffi)

Mike Massimino, NASA Astronaut, known on twitter as @Astro_Mike, speaks during a two-day NASA Tweetup event held at NASA's Kennedy Space Center in Cape Canaveral, Fla, Sunday, Nov. 15, 2009. NASA Twitter followers in attendance will have the opportunity to take a tour of NASA's Kennedy Space Center, view the STS-129 space shuttle launch and speak with shuttle technicians, engineers, astronauts and managers. Photo Credit: (NASA/Carla Cioffi)

Wayne Hale, NASA strategic program planning manager, is seen on video camera as he speaks during a two-day NASA Tweetup event held at NASA's Kennedy Space Center in Cape Canaveral, Fla, Sunday, Nov. 15, 2009. NASA Twitter followers in attendance will have the opportunity to take a tour of NASA's Kennedy Space Center, view the STS-129 space shuttle launch and speak with shuttle technicians, engineers, astronauts and managers. Photo Credit: (NASA/Carla Cioffi) 

Twitter users arrive for the start of a two-day NASA Tweetup event held at NASA's Kennedy Space Center in Cape Canaveral, Fla, Sunday, Nov. 15, 2009. NASA Twitter followers in attendance will have the opportunity to take a tour of NASA's Kennedy Space Center, view the space shuttle launch and speak with shuttle technicians, engineers, astronauts and managers. Photo Credit: (NASA/Carla Cioffi)

NASA Twitter followers wave to the Astro van as it passes by en route to launch pad 39A with the crew of STS-129, Monday, Nov. 16, 2009 at Kennedy Space Center in Cape Canaveral, Fla. The Twitter users were part of a unique two-day NASA Tweetup at Kennedy Space Center. Photo Credit: (NASA/Carla Cioffi)

Attendees at a two-day NASA Tweetup at Kennedy Space Center twitter live about their impressions during the Tweetup in Cape Canaveral, Fla., Sunday, Nov. 15, 2009. NASA Twitter followers in attendance will have the opportunity to take a tour of NASA's Kennedy Space Center, view the STS-129 space shuttle launch and speak with shuttle technicians, engineers, astronauts and managers. Photo Credit: (NASA/Carla Cioffi) 

Miles O'Brien, veteran space reporter, known on twitter as @milesobrien, speaks during a two-day NASA Tweetup event held at NASA's Kennedy Space Center in Cape Canaveral, Fla, Sunday, Nov. 15, 2009. NASA Twitter followers in attendance will have the opportunity to take a tour of NASA's Kennedy Space Center, view the STS-129 space shuttle launch and speak with shuttle technicians, engineers, astronauts and managers. Photo Credit: (NASA/Carla Cioffi)

Twitter user Paul Thompson from Dallas, Texas, who goes by the twitter name @flyingphotog, uses his laptop during a two-day NASA Tweetup event held at NASA's Kennedy Space Center in Cape Canaveral, Fla, Sunday, Nov. 15, 2009. NASA Twitter followers in attendance will have the opportunity to take a tour of NASA's Kennedy Space Center, view the space shuttle launch and speak with shuttle technicians, engineers, astronauts and managers. Photo Credit: (NASA/Carla Cioffi)

Veronica McGregor, NASA public affairs officer, known on twitter as @veronicamcg, speaks during a two-day NASA Tweetup event held at NASA's Kennedy Space Center in Cape Canaveral, Fla, Sunday, Nov. 15, 2009. NASA Twitter followers in attendance will have the opportunity to take a tour of NASA's Kennedy Space Center, view the STS-129 space shuttle launch and speak with shuttle technicians, engineers, astronauts and managers. Photo Credit: (NASA/Carla Cioffi)

A launch countdown sign is seen along the road at NASA's Kennedy Space Center on Monday, Nov. 16, 2009, Cape Canaveral, FL. The space shuttle Atlantis is scheduled to launch at 2:28 p.m. EST Nov. 16. Photo Credit: (NASA/Bill Ingalls)

A NASA "Tweep" has his picture taken in front of space shuttle Atlantis at launch pad 39A during a tour of Kennedy Space Center in Cape Canaveral, Fla, Sunday, Nov. 15, 2009. Space shuttle Atlantis is set to launch on Monday, Nov. 16, 2009 and dock with the International Space Station (ISS) two days later. Photo Credit: (NASA/Carla Cioffi)

NASA Twitter followers attending a two-day NASA Tweetup presented NASA Public Affairs Officers with a signed poster from Kennedy Space Center expressing their appreciation for hosting this unique event, Monday, Nov. 16, 2009 in Cape Canaveral, Fla. Photo Credit: (NASA/Carla Cioffi)

Ares I-X Deputy Mission Manager Jon Cowart shows a space shuttle solid rocket booster (SRB) separation bolt during a two-day NASA Tweetup event held at NASA's Kennedy Space Center in Cape Canaveral, Fla, Sunday, Nov. 15, 2009. NASA Twitter followers in attendance will have the opportunity to take a tour of NASA's Kennedy Space Center, view the STS-129 space shuttle launch and speak with shuttle technicians, engineers, astronauts and managers. Photo Credit: (NASA/Carla Cioffi)

Attendees at a two-day NASA Tweetup at Kennedy Space Center twitter live about their impressions during the Tweetup in Cape Canaveral, Fla., Sunday, Nov. 15, 2009. NASA Twitter followers in attendance will have the opportunity to take a tour of NASA's Kennedy Space Center, view the STS-129 space shuttle launch and speak with shuttle technicians, engineers, astronauts and managers. Photo Credit: (NASA/Carla Cioffi)

Ann Marie Cunningham, center, along with other NASA Twitter followers wave to the Astro van as it passes by en route to launch pad 39A with the crew of STS-129, Monday, Nov. 16, 2009 at Kennedy Space Center in Cape Canaveral, Fla. The Twitter users were part of a unique two-day NASA Tweetup at Kennedy Space Center. Photo Credit: (NASA/Carla Cioffi)

Twitter users arrive for the start of a two-day NASA Tweetup event held at NASA's Kennedy Space Center in Cape Canaveral, Fla, Sunday, Nov. 15, 2009. NASA Twitter followers in attendance will have the opportunity to take a tour of NASA's Kennedy Space Center, view the space shuttle launch and speak with shuttle technicians, engineers, astronauts and managers. Photo Credit: (NASA/Carla Cioffi)

Twitter users arrive for the start of a two-day NASA Tweetup event held at NASA's Kennedy Space Center in Cape Canaveral, Fla, Sunday, Nov. 15, 2009. NASA Twitter followers in attendance will have the opportunity to take a tour of NASA's Kennedy Space Center, view the space shuttle launch and speak with shuttle technicians, engineers, astronauts and managers. Photo Credit: (NASA/Carla Cioffi)

Twitter user Karim Jazouani from Casablanca, Morocco, who goes by the twitter name @karimjazouani, uses his laptop during a two-day NASA Tweetup event held at NASA's Kennedy Space Center in Cape Canaveral, Fla, Sunday, Nov. 15, 2009. NASA Twitter followers in attendance will have the opportunity to take a tour of NASA's Kennedy Space Center, view the space shuttle launch and speak with shuttle technicians, engineers, astronauts and managers. Photo Credit: (NASA/Carla Cioffi)

Twitter user Dave Gibson from Lawrenceville, GA, who goes by the twitter name @davecgibson, listens to a guest speaker during a two-day NASA Tweetup event held at NASA's Kennedy Space Center in Cape Canaveral, Fla, Sunday, Nov. 15, 2009. NASA Twitter followers in attendance will have the opportunity to take a tour of NASA's Kennedy Space Center, view the STS-129 space shuttle launch and speak with shuttle technicians, engineers, astronauts and managers. Photo Credit: (NASA/Carla Cioffi)

Wayne Hale, NASA strategic program planning manager speaks during a two-day NASA Tweetup event held at NASA's Kennedy Space Center in Cape Canaveral, Fla, Sunday, Nov. 15, 2009. NASA Twitter followers in attendance will have the opportunity to take a tour of NASA's Kennedy Space Center, view the STS-129 space shuttle launch and speak with shuttle technicians, engineers, astronauts and managers. Photo Credit: (NASA/Carla Cioffi)

Twitter user Ann Marie Cunningham who goes by the twitter name @talkingscience.org, right, uses her laptop, while Laura Burns, who goes by the twitter name @moonrangerlaura, listens to a guest speaker during a two-day NASA Tweetup event held at NASA's Kennedy Space Center in Cape Canaveral, Fla, Sunday, Nov. 15, 2009. NASA Twitter followers in attendance will have the opportunity to take a tour of NASA's Kennedy Space Center, view the space shuttle launch and speak with shuttle technicians, engineers, astronauts and managers. Photo Credit: (NASA/Carla Cioffi) 

The space shuttle Atlantis is seen on launch pad 39a of the NASA Kennedy Space Center shortly after the rotating service structure was rolled back, Sunday, Nov. 15, 2009, Cape Canaveral, FL. Atlantis is scheduled to launch at 2:28p.m. EST, Monday, Nov. 16, 2009. Photo Credit: (NASA/Bill Ingalls)

NASA Twitter followers tour the International Space Station Center at the Kennedy Space Center in Cape Canaveral, Fla. as part of a two-day Tweetup event, Sunday, Nov. 15, 2009. Tweeps had the chance to enter full-scale mock-ups of the Habitation Module and see how Space Station crew members live, sleep and work. Photo Credit: (NASA/Carla Cioffi) 

Twitter user Laura Burns, left, who goes by the twitter name @moonrangerlaura, listens to a guest speaker, while Ann Marie Cunningham who goes by the twitter name @talkingscience.org, uses her laptop during a two-day NASA Tweetup event held at NASA's Kennedy Space Center in Cape Canaveral, Fla, Sunday, Nov. 15, 2009. NASA Twitter followers in attendance will have the opportunity to take a tour of NASA's Kennedy Space Center, view the space shuttle launch and speak with shuttle technicians, engineers, astronauts and managers. Photo Credit: (NASA/Carla Cioffi) 

The space shuttle Atlantis is seen on launch pad 39a of the NASA Kennedy Space Center shortly after the rotating service structure was rolled back, Sunday, Nov. 15, 2009, Cape Canaveral, FL. Atlantis is scheduled to launch at 2:28p.m. EST, Monday, Nov. 16, 2009. Photo Credit: (NASA/Bill Ingalls)

STS-129 crew members, from left, Robert Satcher, Mike Foreman, Randy Bresnik, Leland Melvin, Pilot Barry Wilmore, and Mission Commander Charlie Hobaugh stop and pose for a photograph before getting into the astrovan and heading to launch pad 39a at the NASA Kennedy Space Center in Cape Canaveral, Fl on Monday, Nov. 16, 2009. Photo Credit: (NASA/Bill Ingalls)

The space shuttle Atlantis is seen on launch pad 39a of the NASA Kennedy Space Center shortly after the rotating service structure was rolled back, Sunday, Nov. 15, 2009, Cape Canaveral, FL. Atlantis is scheduled to launch at 2:28p.m. EST, Monday, Nov. 16, 2009. Photo Credit: (NASA/Bill Ingalls)

STS-129 crew members, from left, Robert Satcher, Mike Foreman, Randy Bresnik, Leland Melvin, Pilot Barry Wilmore, and Mission Commander Charlie Hobaugh stop and pose for a photograph before getting into the astrovan and heading to launch pad 39a at the NASA Kennedy Space Center in Cape Canaveral, Fl on Monday, Nov. 16, 2009. Photo Credit: (NASA/Bill Ingalls)