Browse All : Space Shuttle Orbiter and International Space Station (ISS) from 2007 and 10-10-2007

KENNEDY SPACE CENTER, FLA. -- The crew members of mission STS-120 gather for breakfast before resuming their terminal countdown demonstration test activities at NASA's Kennedy Space Center. From left are Mission Specialists Stephanie Wilson, making her second spaceflight and Daniel Tani, slated to join the Expedition 16 crew, Pilot George Zamka, making his first spaceflight, Commander Pamela Melroy, the second woman to command a shuttle mission, and Mission Specialists Scott Parazynski, making his fifth spaceflight, Paolo Nespoli, representing the European Space Agency, and Doug Wheelock, who will be performing three spacewalks on his first mission. The terminal countdown demonstration test provides astronauts and ground crews an opportunity to participate in various simulated countdown activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission to the International Space Station. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- The crew members of mission STS-120 gather for breakfast before resuming their terminal countdown demonstration test activities at NASA's Kennedy Space Center. From left are Mission Specialists Stephanie Wilson, making her second spaceflight and Daniel Tani, slated to join the Expedition 16 crew, Pilot George Zamka, making his first spaceflight, Commander Pamela Melroy, the second woman to command a shuttle mission, and Mission Specialists Scott Parazynski, making his fifth spaceflight, Paolo Nespoli, representing the European Space Agency, and Doug Wheelock, who will be performing three spacewalks on his first mission. The terminal countdown demonstration test provides astronauts and ground crews an opportunity to participate in various simulated countdown activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission to the International Space Station. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- STS-120 Commander Pamela Melroy is donning her launch and entry suit to take part in a simulated launch countdown, part of the prelaunch terminal countdown demonstration test, or TCDT. Her name patch reflects the nicknames the crew gave each other for the event. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- STS-120 Commander Pamela Melroy is donning her launch and entry suit to take part in a simulated launch countdown, part of the prelaunch terminal countdown demonstration test, or TCDT. Her name patch reflects the nicknames the crew gave each other for the event. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- STS-120 Mission Specialist Daniel Tani is fully suited and ready to take part in a simulated launch countdown, part of the prelaunch terminal countdown demonstration test, or TCDT. His name patch reflects the nicknames the crew gave each other for the event. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- STS-120 Mission Specialist Daniel Tani is fully suited and ready to take part in a simulated launch countdown, part of the prelaunch terminal countdown demonstration test, or TCDT. His name patch reflects the nicknames the crew gave each other for the event. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- STS-120 Mission Specialist Scott Parazynski completes suiting up to take part in a simulated launch countdown, part of the prelaunch terminal countdown demonstration test, or TCDT. His name patch reflects the nicknames the crew gave each other for the event. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- STS-120 Mission Specialist Scott Parazynski completes suiting up to take part in a simulated launch countdown, part of the prelaunch terminal countdown demonstration test, or TCDT. His name patch reflects the nicknames the crew gave each other for the event. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- STS-120 Mission Specialist Stephanie Wilson is helped with her boot during suitup for a simulated launch countdown, part of the prelaunch terminal countdown demonstration test, or TCDT. Her name patch reflects the nicknames the crew gave each other for the event. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- STS-120 Mission Specialist Stephanie Wilson is helped with her boot during suitup for a simulated launch countdown, part of the prelaunch terminal countdown demonstration test, or TCDT. Her name patch reflects the nicknames the crew gave each other for the event. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- STS-120 Mission Specialist Scott Parazynski is putting on his launch and entry suit for a simulated launch countdown, part of the prelaunch terminal countdown demonstration test, or TCDT. His name patch reflects the nicknames the crew gave each other for the event. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- STS-120 Mission Specialist Scott Parazynski is putting on his launch and entry suit for a simulated launch countdown, part of the prelaunch terminal countdown demonstration test, or TCDT. His name patch reflects the nicknames the crew gave each other for the event. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- The STS-120 crew walks out of the Operations and Checkout Building for their ride to Launch Pad 39A. They will enter space shuttle Discovery and take part in a simulated launch countdown as part of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: Courtesy of EPA/Justin Dernier

Description	KENNEDY SPACE CENTER, FLA. -- The STS-120 crew walks out of the Operations and Checkout Building for their ride to Launch Pad 39A. They will enter space shuttle Discovery and take part in a simulated launch countdown as part of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: Courtesy of EPA/Justin Dernier
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- STS-120 Mission Specialist Stephanie Wilson completes suiting up to take part in a simulated launch countdown, part of the prelaunch terminal countdown demonstration test, or TCDT. His name patch reflects the nicknames the crew gave each other for the event. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- STS-120 Mission Specialist Stephanie Wilson completes suiting up to take part in a simulated launch countdown, part of the prelaunch terminal countdown demonstration test, or TCDT. His name patch reflects the nicknames the crew gave each other for the event. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- STS-120 Mission Specialist Paolo Nespoli completes suiting up to take part in a simulated launch countdown, part of the prelaunch terminal countdown demonstration test, or TCDT. Nespoli represents the European Space Agency. His name patch reflects the nicknames the crew gave each other for the event. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- STS-120 Mission Specialist Paolo Nespoli completes suiting up to take part in a simulated launch countdown, part of the prelaunch terminal countdown demonstration test, or TCDT. Nespoli represents the European Space Agency. His name patch reflects the nicknames the crew gave each other for the event. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- STS-120 Pilot George Zamka completes suiting up to take part in a simulated launch countdown, part of the prelaunch terminal countdown demonstration test, or TCDT. His name patch reflects the nicknames the crew gave each other for the event. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- STS-120 Pilot George Zamka completes suiting up to take part in a simulated launch countdown, part of the prelaunch terminal countdown demonstration test, or TCDT. His name patch reflects the nicknames the crew gave each other for the event. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- At the Operations and Checkout Building, the crew members of space shuttle mission STS-120 prepare to board the bus that will transport them to Launch Pad 39A during their terminal countdown demonstration test activities. In the left row are, from front, Pilot George Zamka and Mission Specialists Stephanie Wilson, Daniel Tani, and Scott Parazynski. In the right row are, from front, Commander Pam Melroy and Mission Specialists Doug Wheelock and Paolo Nespoli. Nespoli represents the European Space Agency. After the mission, Tani will remain aboard the International Space Station and return with the STS-122 crew, targeted to launch Dec. 6. The terminal countdown demonstration test provides astronauts and ground crews an opportunity to participate in various simulated countdown activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the ISS. Discovery's launch is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- At the Operations and Checkout Building, the crew members of space shuttle mission STS-120 prepare to board the bus that will transport them to Launch Pad 39A during their terminal countdown demonstration test activities. In the left row are, from front, Pilot George Zamka and Mission Specialists Stephanie Wilson, Daniel Tani, and Scott Parazynski. In the right row are, from front, Commander Pam Melroy and Mission Specialists Doug Wheelock and Paolo Nespoli. Nespoli represents the European Space Agency. After the mission, Tani will remain aboard the International Space Station and return with the STS-122 crew, targeted to launch Dec. 6. The terminal countdown demonstration test provides astronauts and ground crews an opportunity to participate in various simulated countdown activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the ISS. Discovery's launch is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- STS-120 Mission Specialist Doug Wheelock gets help with his boot as he suits up for a simulated launch countdown, part of the prelaunch terminal countdown demonstration test, or TCDT. His name patch reflects the nicknames the crew gave each other for the event. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- STS-120 Mission Specialist Doug Wheelock gets help with his boot as he suits up for a simulated launch countdown, part of the prelaunch terminal countdown demonstration test, or TCDT. His name patch reflects the nicknames the crew gave each other for the event. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- STS-120 Mission Specialist Paolo Nespoli is putting on his launch and entry suit for a simulated launch countdown, part of the prelaunch terminal countdown demonstration test, or TCDT. His name patch reflects the nicknames the crew gave each other for the event. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- STS-120 Mission Specialist Paolo Nespoli is putting on his launch and entry suit for a simulated launch countdown, part of the prelaunch terminal countdown demonstration test, or TCDT. His name patch reflects the nicknames the crew gave each other for the event. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- STS-120 Commander Pamela Melroy completes suiting up to take part in a simulated launch countdown, part of the prelaunch terminal countdown demonstration test, or TCDT. His name patch reflects the nicknames the crew gave each other for the event. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- STS-120 Commander Pamela Melroy completes suiting up to take part in a simulated launch countdown, part of the prelaunch terminal countdown demonstration test, or TCDT. His name patch reflects the nicknames the crew gave each other for the event. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- In the white room on Launch Pad 39A, STS-120 Mission Specialist Doug Wheelock is ready to enter space shuttle Discovery for a simulated launch countdown. The countdown is the culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/George Shelton

Description	KENNEDY SPACE CENTER, FLA. -- In the white room on Launch Pad 39A, STS-120 Mission Specialist Doug Wheelock is ready to enter space shuttle Discovery for a simulated launch countdown. The countdown is the culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/George Shelton
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- STS-120 Pilot George Zamka is donning his launch and entry suit to take part in a simulated launch countdown, part of the prelaunch terminal countdown demonstration test, or TCDT. His name patch reflects the nicknames the crew gave each other for the event. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- STS-120 Pilot George Zamka is donning his launch and entry suit to take part in a simulated launch countdown, part of the prelaunch terminal countdown demonstration test, or TCDT. His name patch reflects the nicknames the crew gave each other for the event. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- In the white room on Launch Pad 39A, STS-120 Commander Pamela Melroy is helped by the closeout crew in donning a parachute pack before she crawls through the open hatch into space shuttle Discovery for a simulated launch countdown. The countdown is the culmination of the prelaunch terminal countdown demonstration test, or TCDT. Her name patch reflects the nicknames the crew gave each other for the event. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/George Shelton

Description	KENNEDY SPACE CENTER, FLA. -- In the white room on Launch Pad 39A, STS-120 Commander Pamela Melroy is helped by the closeout crew in donning a parachute pack before she crawls through the open hatch into space shuttle Discovery for a simulated launch countdown. The countdown is the culmination of the prelaunch terminal countdown demonstration test, or TCDT. Her name patch reflects the nicknames the crew gave each other for the event. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/George Shelton
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- In the white room on Launch Pad 39A, STS-120 Mission Specialist Scott Parazynski gets ready to enter space shuttle Discovery for a simulated launch countdown. The countdown is the culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/George Shelton

Description	KENNEDY SPACE CENTER, FLA. -- In the white room on Launch Pad 39A, STS-120 Mission Specialist Scott Parazynski gets ready to enter space shuttle Discovery for a simulated launch countdown. The countdown is the culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/George Shelton
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- STS-120 Mission Specialist Daniel Tani is putting on his launch and entry suit for a simulated launch countdown, part of the prelaunch terminal countdown demonstration test, or TCDT. His name patch reflects the nicknames the crew gave each other for the event. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- STS-120 Mission Specialist Daniel Tani is putting on his launch and entry suit for a simulated launch countdown, part of the prelaunch terminal countdown demonstration test, or TCDT. His name patch reflects the nicknames the crew gave each other for the event. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- In the white room on Launch Pad 39A, STS-120 Pilot George Zamka finishes getting into his parachute pack before entering space shuttle Discovery for a simulated launch countdown. The countdown is the culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/George Shelton

Description	KENNEDY SPACE CENTER, FLA. -- In the white room on Launch Pad 39A, STS-120 Pilot George Zamka finishes getting into his parachute pack before entering space shuttle Discovery for a simulated launch countdown. The countdown is the culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/George Shelton
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- STS-120 Mission Specialist Doug Wheelock completes suiting up to take part in a simulated launch countdown, part of the prelaunch terminal countdown demonstration test, or TCDT. His name patch reflects the nicknames the crew gave each other for the event. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- STS-120 Mission Specialist Doug Wheelock completes suiting up to take part in a simulated launch countdown, part of the prelaunch terminal countdown demonstration test, or TCDT. His name patch reflects the nicknames the crew gave each other for the event. The TCDT provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization, emergency training and the simulated countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Launch of Discovery on mission STS-120 is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- STS-120 Mission Specialist Paolo Nespoli arrives in the white room on Launch Pad 39A. After donning a parachute pack, he will enter space shuttle Discovery for a simulated launch countdown. The countdown is the culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/George Shelton

Description	KENNEDY SPACE CENTER, FLA. -- STS-120 Mission Specialist Paolo Nespoli arrives in the white room on Launch Pad 39A. After donning a parachute pack, he will enter space shuttle Discovery for a simulated launch countdown. The countdown is the culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/George Shelton
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- At the Operations and Checkout Building, the crew members of space shuttle mission STS-120 wave to well-wishers as they board the bus that will transport them to Launch Pad 39A during their terminal countdown demonstration test activities. In the left row are, from front, Pilot George Zamka and Mission Specialists Stephanie Wilson, Daniel Tani, and Scott Parazynski. In the right row are, from front, Commander Pam Melroy and Mission Specialists Doug Wheelock and Paolo Nespoli. Nespoli represents the European Space Agency. After the mission, Tani will remain aboard the International Space Station and return with the STS-122 crew, targeted to launch Dec. 6. The terminal countdown demonstration test provides astronauts and ground crews an opportunity to participate in various simulated countdown activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the ISS. Discovery's launch is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- At the Operations and Checkout Building, the crew members of space shuttle mission STS-120 wave to well-wishers as they board the bus that will transport them to Launch Pad 39A during their terminal countdown demonstration test activities. In the left row are, from front, Pilot George Zamka and Mission Specialists Stephanie Wilson, Daniel Tani, and Scott Parazynski. In the right row are, from front, Commander Pam Melroy and Mission Specialists Doug Wheelock and Paolo Nespoli. Nespoli represents the European Space Agency. After the mission, Tani will remain aboard the International Space Station and return with the STS-122 crew, targeted to launch Dec. 6. The terminal countdown demonstration test provides astronauts and ground crews an opportunity to participate in various simulated countdown activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the ISS. Discovery's launch is targeted for Oct. 23 at 11:38 a.m. EDT on a 14-day mission. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- In the white room on Launch Pad 39A, an STS-120 crew member crawls through the hatch after the simulated launch countdown, culmination of the prelaunch terminal countdown demonstration test, or TCDT. The crew will also practice emergency egress from the pad. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- In the white room on Launch Pad 39A, an STS-120 crew member crawls through the hatch after the simulated launch countdown, culmination of the prelaunch terminal countdown demonstration test, or TCDT. The crew will also practice emergency egress from the pad. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- During emergency egress from Launch Pad 39A, STS-120 Mission Specialists Stephanie Wilson (left) and Doug Wheelock head for the slidewire baskets. The basket can carry them to a safe landing site below, if needed. The activity is part of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- During emergency egress from Launch Pad 39A, STS-120 Mission Specialists Stephanie Wilson (left) and Doug Wheelock head for the slidewire baskets. The basket can carry them to a safe landing site below, if needed. The activity is part of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- During emergency egress from Launch Pad 39A, STS-120 Pilot George Zamka and Commander Pamela Melroy head for the slidewire baskets. The basket can carry them to a safe landing site below, if needed. The activity is part of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- During emergency egress from Launch Pad 39A, STS-120 Pilot George Zamka and Commander Pamela Melroy head for the slidewire baskets. The basket can carry them to a safe landing site below, if needed. The activity is part of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- Inside space shuttle Discovery, STS-120 Mission Specialist Doug Wheelock is ready with his checklist for the simulated launch countdown, culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- Inside space shuttle Discovery, STS-120 Mission Specialist Doug Wheelock is ready with his checklist for the simulated launch countdown, culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- STS-120 Mission Specialist Paolo Nespoli relaxes after practicing emergency egress, part of the prelaunch terminal countdown demonstration test, or TCDT. His name patch reflects the nicknames the crew gave each other for the event. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- STS-120 Mission Specialist Paolo Nespoli relaxes after practicing emergency egress, part of the prelaunch terminal countdown demonstration test, or TCDT. His name patch reflects the nicknames the crew gave each other for the event. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- In the white room on Launch Pad 39A, STS-120 Mission Specialists Daniel Tani (left) and Doug Wheelock are ready to enter space shuttle Discovery for a simulated launch countdown. The countdown is the culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/George Shelton

Description	KENNEDY SPACE CENTER, FLA. -- In the white room on Launch Pad 39A, STS-120 Mission Specialists Daniel Tani (left) and Doug Wheelock are ready to enter space shuttle Discovery for a simulated launch countdown. The countdown is the culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/George Shelton
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- The crew members of space shuttle mission STS-120 prepare for their return to NASA's Johnson Space Center in Houston following three days of terminal countdown demonstration test, or TCDT, activities. At Kennedy Space Center's Shuttle Landing Facility, Mission Specialist Scott Parazynski is strapped into his T-38 jet aircraft prior to takeoff. The TCDT provides astronauts and ground crews with equipment familiarization, emergency egress training and a simulated launch countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station on a 14-day mission. Discovery's launch is targeted for Oct. 23 at 11:38 a.m. EDT. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- The crew members of space shuttle mission STS-120 prepare for their return to NASA's Johnson Space Center in Houston following three days of terminal countdown demonstration test, or TCDT, activities. At Kennedy Space Center's Shuttle Landing Facility, Mission Specialist Scott Parazynski is strapped into his T-38 jet aircraft prior to takeoff. The TCDT provides astronauts and ground crews with equipment familiarization, emergency egress training and a simulated launch countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station on a 14-day mission. Discovery's launch is targeted for Oct. 23 at 11:38 a.m. EDT. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- Inside space shuttle Discovery, STS-120 Pilot George Zamka is ready for the simulated launch countdown, culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- Inside space shuttle Discovery, STS-120 Pilot George Zamka is ready for the simulated launch countdown, culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- Following the successful simulated launch countdown and emergency egress practice, the STS-120 crew gathers for the traditional photo near the top of the fixed service structure. From left are Mission Specialists Scott Parazynski and Stephanie Wilson, Pilot George Zamka, Commander Pamela Melroy, and Mission Specialists Daniel Tani, Doug Wheelock and Paolo Nespoli, who represents the European Space Agency. The countdown was the culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- Following the successful simulated launch countdown and emergency egress practice, the STS-120 crew gathers for the traditional photo near the top of the fixed service structure. From left are Mission Specialists Scott Parazynski and Stephanie Wilson, Pilot George Zamka, Commander Pamela Melroy, and Mission Specialists Daniel Tani, Doug Wheelock and Paolo Nespoli, who represents the European Space Agency. The countdown was the culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- In the white room on Launch Pad 39A, the closeout crew helps STS-120 Pilot George Zamka to get into a parachute pack before entering space shuttle Discovery for a simulated launch countdown. The countdown is the culmination of the prelaunch terminal countdown demonstration test, or TCDT. His name patch reflects the nicknames the crew gave each other for the event. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/George Shelton

Description	KENNEDY SPACE CENTER, FLA. -- In the white room on Launch Pad 39A, the closeout crew helps STS-120 Pilot George Zamka to get into a parachute pack before entering space shuttle Discovery for a simulated launch countdown. The countdown is the culmination of the prelaunch terminal countdown demonstration test, or TCDT. His name patch reflects the nicknames the crew gave each other for the event. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/George Shelton
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- STS-120 Mission Specialist Stephanie Wilson relaxes after practicing emergency egress, part of the prelaunch terminal countdown demonstration test, or TCDT. Her name patch reflects the nicknames the crew gave each other for the event. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- STS-120 Mission Specialist Stephanie Wilson relaxes after practicing emergency egress, part of the prelaunch terminal countdown demonstration test, or TCDT. Her name patch reflects the nicknames the crew gave each other for the event. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- Inside space shuttle Discovery, STS-120 Commander Pamela Melroy's reflection shows her happiness taking part in a simulated launch countdown, culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- Inside space shuttle Discovery, STS-120 Commander Pamela Melroy's reflection shows her happiness taking part in a simulated launch countdown, culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

Description	KENNEDY SPACE CENTER, FLA. -- The crew members of space shuttle mission STS-120 prepare for their return to NASA's Johnson Space Center in Houston following three days of terminal countdown demonstration test, or TCDT, activities. At Kennedy Space Center's Shuttle Landing Facility, Pilot George Zamka, at left, and Mission Specialist Paolo Nespoli are packed and ready to board their aircraft. Nespoli is representing the European Space Agency on STS-120. The TCDT provides astronauts and ground crews with equipment familiarization, emergency egress training and a simulated launch countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station on a 14-day mission. Discovery's launch is targeted for Oct. 23 at 11:38 a.m. EDT. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- Inside space shuttle Discovery, STS-120 Mission Specialists Paolo Nespoli, Daniel Tani and Scott Parazynski have been taking part in a simulated launch countdown, culmination of the prelaunch terminal countdown demonstration test, or TCDT. Nespoli represents the European Space Agency. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- Inside space shuttle Discovery, STS-120 Mission Specialists Paolo Nespoli, Daniel Tani and Scott Parazynski have been taking part in a simulated launch countdown, culmination of the prelaunch terminal countdown demonstration test, or TCDT. Nespoli represents the European Space Agency. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- During emergency egress from Launch Pad 39A, STS-120 Pilot George Zamka and Commander Pamela Melroy are in one of the slidewire baskets. Zamka, at left, reaches for the release lever. The basket can carry them to a safe landing site below, if needed. The activity is part of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- During emergency egress from Launch Pad 39A, STS-120 Pilot George Zamka and Commander Pamela Melroy are in one of the slidewire baskets. Zamka, at left, reaches for the release lever. The basket can carry them to a safe landing site below, if needed. The activity is part of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- In the white room on Launch Pad 39A, STS-120 Pilot George Zamka (left) and Mission Specialist Scott Parazynski are ready to enter space shuttle Discovery for a simulated launch countdown. The countdown is the culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/George Shelton

Description	KENNEDY SPACE CENTER, FLA. -- In the white room on Launch Pad 39A, STS-120 Pilot George Zamka (left) and Mission Specialist Scott Parazynski are ready to enter space shuttle Discovery for a simulated launch countdown. The countdown is the culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/George Shelton
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- In the white room on Launch Pad 39A, STS-120 Mission Specialist Doug Wheelock dons his parachute pack before entering space shuttle Discovery for a simulated launch countdown. The countdown is the culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/George Shelton

Description	KENNEDY SPACE CENTER, FLA. -- In the white room on Launch Pad 39A, STS-120 Mission Specialist Doug Wheelock dons his parachute pack before entering space shuttle Discovery for a simulated launch countdown. The countdown is the culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/George Shelton
Release Date	10/10/2007

Description	KENNEDY SPACE CENTER, FLA. -- The crew members of space shuttle mission STS-120 prepare for their return to NASA's Johnson Space Center in Houston following three days of terminal countdown demonstration test, or TCDT, activities. At Kennedy Space Center's Shuttle Landing Facility, Pilot George Zamka, in front, and Mission Specialist Paolo Nespoli secure themselves in a T-38 jet aircraft for takeoff. Nespoli is representing the European Space Agency on STS-120. The TCDT provides astronauts and ground crews with equipment familiarization, emergency egress training and a simulated launch countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station on a 14-day mission. Discovery's launch is targeted for Oct. 23 at 11:38 a.m. EDT. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- In the white room on Launch Pad 39A, STS-120 Mission Specialist Daniel Tani (foreground) is helped with his launch suit preparations before entering space shuttle Discovery for a simulated launch countdown. In the background is Mission Specialist Doug Wheelock. The countdown is the culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/George Shelton

Description	KENNEDY SPACE CENTER, FLA. -- In the white room on Launch Pad 39A, STS-120 Mission Specialist Daniel Tani (foreground) is helped with his launch suit preparations before entering space shuttle Discovery for a simulated launch countdown. In the background is Mission Specialist Doug Wheelock. The countdown is the culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/George Shelton
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- In the white room on Launch Pad 39A, STS-120 Mission Specialist Paolo Nespoli dons a parachute pack before entering space shuttle Discovery for a simulated launch countdown. The countdown is the culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/George Shelton

Description	KENNEDY SPACE CENTER, FLA. -- In the white room on Launch Pad 39A, STS-120 Mission Specialist Paolo Nespoli dons a parachute pack before entering space shuttle Discovery for a simulated launch countdown. The countdown is the culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/George Shelton
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- STS-120 Mission Specialist Scott Parazynski arrives on Launch Pad 39A to start a simulated launch countdown, culmination of the prelaunch terminal countdown demonstration test, or TCDT. His name patch reflects the nicknames the crew gave each other for the event. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/George Shelton

Description	KENNEDY SPACE CENTER, FLA. -- STS-120 Mission Specialist Scott Parazynski arrives on Launch Pad 39A to start a simulated launch countdown, culmination of the prelaunch terminal countdown demonstration test, or TCDT. His name patch reflects the nicknames the crew gave each other for the event. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/George Shelton
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- During emergency egress from Launch Pad 39A, STS-120 Mission Specialists Stephanie Wilson (foreground) and Doug Wheelock settle in the slidewire basket. Wilson reaches for the release lever. The basket can carry them to a safe landing site below, if needed. The activity is part of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- During emergency egress from Launch Pad 39A, STS-120 Mission Specialists Stephanie Wilson (foreground) and Doug Wheelock settle in the slidewire basket. Wilson reaches for the release lever. The basket can carry them to a safe landing site below, if needed. The activity is part of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

Description	KENNEDY SPACE CENTER, FLA. -- In the white room on Launch Pad 39A, STS-120 Commander Pamela Melroy is helped by the closeout crew in donning a parachute pack before she crawls through the open hatch into space shuttle Discovery for a simulated launch countdown. The countdown is the culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/George Shelton
Release Date	10/10/2007

Description	KENNEDY SPACE CENTER, FLA. -- The crew members of space shuttle mission STS-120 prepare for their return to NASA's Johnson Space Center in Houston following three days of terminal countdown demonstration test, or TCDT, activities. At Kennedy Space Center's Shuttle Landing Facility, Commander Pam Melroy, in front, and Mission Specialist Stephanie Wilson complete the final tasks before takeoff in a T-38 jet aircraft. Melroy is the second woman to command a shuttle mission. The TCDT provides astronauts and ground crews with equipment familiarization, emergency egress training and a simulated launch countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station on a 14-day mission. Discovery's launch is targeted for Oct. 23 at 11:38 a.m. EDT. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- In the white room on Launch Pad 39A, the closeout crew helps STS-120 Mission Specialist Stephanie Wilson with her parachute pack before entering space shuttle Discovery for a simulated launch countdown. The countdown is the culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/George Shelton

Description	KENNEDY SPACE CENTER, FLA. -- In the white room on Launch Pad 39A, the closeout crew helps STS-120 Mission Specialist Stephanie Wilson with her parachute pack before entering space shuttle Discovery for a simulated launch countdown. The countdown is the culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/George Shelton
Release Date	10/10/2007

Description	KENNEDY SPACE CENTER, FLA. -- The crew members of space shuttle mission STS-120 prepare for their return to NASA's Johnson Space Center in Houston following three days of terminal countdown demonstration test, or TCDT, activities. At Kennedy Space Center's Shuttle Landing Facility, Commander Pam Melroy, in front, and Mission Specialist Stephanie Wilson secure themselves in a T-38 jet aircraft for takeoff. Melroy is the second woman to command a shuttle mission. The TCDT provides astronauts and ground crews with equipment familiarization, emergency egress training and a simulated launch countdown. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station on a 14-day mission. Discovery's launch is targeted for Oct. 23 at 11:38 a.m. EDT. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

KENNEDY SPACE CENTER, FLA. -- Inside space shuttle Discovery, STS-120 Mission Specialists Doug Wheelock and Stephanie Wilson are in their assigned seats for the simulated launch countdown, culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/Kim Shiflett

Description	KENNEDY SPACE CENTER, FLA. -- Inside space shuttle Discovery, STS-120 Mission Specialists Doug Wheelock and Stephanie Wilson are in their assigned seats for the simulated launch countdown, culmination of the prelaunch terminal countdown demonstration test, or TCDT. The TCDT at NASA's Kennedy Space Center provides astronauts and ground crews an opportunity to participate in various launch preparation activities, including equipment familiarization and emergency training. The STS-120 mission will deliver the U.S. Node 2 module, named Harmony, aboard space shuttle Discovery to the International Space Station. Discovery is targeted to launch on its 14-day mission at 11:38 a.m. EDT on Oct. 23. Photo credit: NASA/Kim Shiflett
Release Date	10/10/2007

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