Backup Spaceflight Participant Barbara Barrett, left, backup Expedition 21 Commander Aleksandr Skvortsov, center, and backup Expedition 21 Flight Engineer Shannon Walker are seen during a press conference, Tuesday, Sept. 29, 2009 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

Backup Spaceflight Participant Barbara Barrett speaks during the State Commission meeting to approve the Soyuz launch of Expedition 21 Flight Engineer Jeffrey N. Williams, Expedition 21 Flight Engineer Maxim Suraev, and Spaceflight Participant Guy Laliberté on Tuesday, Sept. 29, 2009 in Baikonur, Kazakhstan. The crew is kept in a separate room with a glass window in order to help maintain their health. Photo Credit: (NASA/Bill Ingalls)

From left, Spaceflight Participant Guy Laliberté, Expedition 21 Flight Engineer Maxim Suraev, Expedition 21 Flight Engineer Jeffrey N. Williams, Backup Spaceflight Participant Barbara Barrett, backup Expedition 21 Commander Aleksandr Skvortsov, and backup Expedition 21 Flight Engineer Shannon Walker are seen during a press conference, Tuesday, Sept. 29, 2009 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Williams, Suraev and Laliberté are scheduled to launch onboard a Soyuz rocket to the International Space Station (ISS) on Wednesday, Sept. 30, 2009 from the Baikonur Cosmodrome in Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

From left, Spaceflight Participant Guy Laliberté, Expedition 21 Flight Engineer Maxim Suraev, Expedition 21 Flight Engineer Jeffrey N. Williams, Backup Spaceflight Participant Barbara Barrett, backup Expedition 21 Commander Aleksandr Skvortsov, and backup Expedition 21 Flight Engineer Shannon Walker pose for a group photograph at the end of a press conference, Tuesday, Sept. 29, 2009 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Williams, Suraev and Laliberté are scheduled to launch onboard a Soyuz rocket to the International Space Station (ISS) on Wednesday, Sept. 30, 2009 from the Baikonur Cosmodrome in Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

From left, Spaceflight Participant Guy Laliberté, Expedition 21 Flight Engineer Maxim Suraev, Expedition 21 Flight Engineer Jeffrey N. Williams, Backup Spaceflight Participant Barbara Barrett, backup Expedition 21 Commander Aleksandr Skvortsov, and backup Expedition 21 Flight Engineer Shannon Walker are seen during the State Commission meeting to approve the Soyuz launch of Williams, Suraev, and Laliberté on Tuesday, Sept. 29, 2009 in Baikonur, Kazakhstan. The crew is kept in a separate room with a glass window in order to help maintain their health. Photo Credit: (NASA/Bill Ingalls)

Spaceflight Participant Guy Laliberté, front left, Expedition 21 Flight Engineer Maxim Suraev, front center, and Expedition 21 Flight Engineer Jeffrey N. Williams prepare to have their Russian Sokol suits pressure tested while the backup crew members look on, from back left, Backup Spaceflight Participant Barbara Barrett, backup Expedition 21 Commander Aleksandr Skvortsov, and backup Expedition 21 Flight Engineer Shannon Walker, prior to the crews launch onboard a Soyuz rocket to the International Space Station on Wednesday, Sept. 30, 2009 in Baikonur, Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

Spaceflight Participant Guy Laliberté, front left, Expedition 21 Flight Engineer Maxim Suraev, front center, and Expedition 21 Flight Engineer Jeffrey N. Williams prepare to have their Russian Sokol suits pressure tested while the backup crew members look on, from back left, Backup Spaceflight Participant Barbara Barrett, backup Expedition 21 Commander Aleksandr Skvortsov, and backup Expedition 21 Flight Engineer Shannon Walker, prior to the crews launch onboard a Soyuz rocket to the International Space Station on Wednesday, Sept. 30, 2009 in Baikonur, Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

JSC2009-E-208079 (31 Aug. 2009) --- Attired in Russian Sokol launch and entry suits, backup spaceflight participant Barbara Barrett (left); Russian cosmonaut Alexander Skvortsov, backup Soyuz commander and Expedition 21 flight engineer; and NASA astronaut Shannon Walker, backup Expedition 21 commander and flight engineer, take a break from training in Star City, Russia to pose for a portrait. Photo credit: Gagarin Cosmonaut Training Center

Spaceflight Participant Guy Laliberté, left, Expedition 21 Flight Engineer Maxim Suraev, center and Expedition 21 Flight Engineer Jeffrey N. Williams talk with family and colleagues from behind glass prior to their launch onboard a Soyuz rocket to the International Space Station (ISS), Wednesday, Sept. 30, 2009 in Baikonur, Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

Spaceflight Participant Guy Laliberté, smiles with his red clown nose on from behind glass as he waits for his turn to have his Russian Sokol suit pressure tested prior to his launch to the International Space Station (ISS) with Expedition 21 Flight Engineer Maxim Suraev and Expedition 21 Flight Engineer Jeffrey N. Williams, Wednesday, Sept. 30, 2009 in Baikonur, Kazakhstan. Photo Credit: (NASA/Victor Zelentsov)