CAPE CANAVERAL, Fla. -- In the Multi-Payload Processing Facility at NASA's Kennedy Space Center in Florida, NASA astronaut Shane Kimbrough participates in an exercise known as crew egress evaluation from an Orion mock-up. The spacecraft is replicated in all areas that could affect a crew's escape, including the area that seals to a launch pad's White Room. The exercise focuses on whether astronauts and their rescue crews can exit the vehicle quickly in the event of a pad emergency. For more information on Orion, visit www.nasa.gov/orion. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- In the Multi-Payload Processing Facility at NASA's Kennedy Space Center in Florida, NASA astronauts Shane Kimbrough, left, and Marsha Ivins, participate in an exercise known as crew egress evaluation from an Orion mock-up. The spacecraft is replicated in all areas that could affect a crew's escape, including the area that seals to a launch pad's White Room. The exercise focuses on whether astronauts and their rescue crews can exit the vehicle quickly in the event of a pad emergency. For more information on Orion, visit www.nasa.gov/orion. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- In the Multi-Payload Processing Facility at NASA's Kennedy Space Center in Florida, NASA astronauts Shane Kimbrough, left, and Marsha Ivins, participate in an exercise known as crew egress evaluation from an Orion mock-up. The spacecraft is replicated in all areas that could affect a crew's escape, including the area that seals to a launch pad's White Room. The exercise focuses on whether astronauts and their rescue crews can exit the vehicle quickly in the event of a pad emergency. For more information on Orion, visit www.nasa.gov/orion. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- In the Multi-Payload Processing Facility at NASA's Kennedy Space Center in Florida, NASA astronauts Shane Kimbrough, left, Marsha Ivins and Randy Bresnik take a break from an exercise known as crew egress evaluation from an Orion mock-up. Behind them are Rene Arriens, left, and Tim Seymour, closeout crew members participating in the exercise. The spacecraft is replicated in all areas that could affect a crew's escape, including the area that seals to a launch pad's White Room. The exercise focuses on whether astronauts and their rescue crews can exit the vehicle quickly in the event of a pad emergency. For more information on Orion, visit www.nasa.gov/orion. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- In the Multi-Payload Processing Facility at NASA's Kennedy Space Center in Florida, workers take photos and video of fire and rescue personnel, as well as a closeout crew, participating in an exercise known as crew egress evaluation from an Orion mock-up. The spacecraft is replicated in all areas that could affect a crew's escape, including the area that seals to a launch pad's White Room. The exercise focuses on whether astronauts and their rescue crews can exit the vehicle quickly in the event of a pad emergency. For more information on Orion, visit www.nasa.gov/orion. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- In the Multi-Payload Processing Facility at NASA's Kennedy Space Center in Florida, NASA astronaut Shane Kimbrough participates in an exercise known as crew egress evaluation from an Orion mock-up. The spacecraft is replicated in all areas that could affect a crew's escape, including the area that seals to a launch pad's White Room. The exercise focuses on whether astronauts and their rescue crews can exit the vehicle quickly in the event of a pad emergency. For more information on Orion, visit www.nasa.gov/orion. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- In the Multi-Payload Processing Facility at NASA's Kennedy Space Center in Florida, NASA astronauts Shane Kimbrough, left, and Marsha Ivins, participate in an exercise known as crew egress evaluation from an Orion mock-up. The spacecraft is replicated in all areas that could affect a crew's escape, including the area that seals to a launch pad's White Room. The exercise focuses on whether astronauts and their rescue crews can exit the vehicle quickly in the event of a pad emergency. For more information on Orion, visit www.nasa.gov/orion. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- In the Multi-Payload Processing Facility at NASA's Kennedy Space Center in Florida, fire and rescue personnel, as well as a closeout crew, participate in an exercise known as crew egress evaluation from an Orion mock-up. The spacecraft is replicated in all areas that could affect a crew's escape, including the area that seals to a launch pad's White Room. The exercise focuses on whether astronauts and their rescue crews can exit the vehicle quickly in the event of a pad emergency. For more information on Orion, visit www.nasa.gov/orion. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. -- In the Multi-Payload Processing Facility at NASA's Kennedy Space Center in Florida, fire and rescue personnel, as well as a closeout crew, participate in an exercise known as crew egress evaluation from an Orion mock-up. The spacecraft is replicated in all areas that could affect a crew's escape, including the area that seals to a launch pad's White Room. The exercise focuses on whether astronauts and their rescue crews can exit the vehicle quickly in the event of a pad emergency. For more information on Orion, visit www.nasa.gov/orion. Photo credit: NASA/Dimitri Gerondidakis