Mississippi Rep. Percy Watson (left) talks with first-graders Savannah Jones and Levi Meyers, and Astronaut Lee Morin on Sept. 8 during the NASA Explorer School kickoff event at the Lillie Burney Elementary School in Hattiesburg, Miss. NASA Explorer Schools help promote student achievement in mathematics and science through activities using the excitement of NASA research, discoveries and missions.

NASA Astronaut Lee Morin, a veteran of space shuttle mission STS-110, signs autographs at the NASA booth set up on the National Mall as part of the National Day of Service, Saturday, January 19, 2013, in Washington. NASA along with other federal agencies set up along the Mall as part of events surrounding the inauguration of President Barack Obama. Photo Credit: (NASA/Carla Cioffi)

JOHNSON SPACE CENTER, HOUSTON, TEXAS. -- (JSC 596-14779) -- Official portrait of astronaut Lee M. Morin, mission specialist

JSC2002-E-14076 (20 April 2002) --- Astronaut Lee M. E. Morin, STS-110 mission specialist, speaks from the lectern in Hangar 990 at Ellington Field during the crew return ceremonies.

STS110-E-5008 (8 April 2002) --- Astronaut Lee M. E. Morin, STS-110 mission specialist, works on the mid deck of the Space Shuttle Atlantis. The image was taken with at digital still camera.

STS110-E-5043 (9 April 2002) --- Astronaut Lee M. E. Morin, STS-110 mission specialist, is photographed on the mid deck of the Space Shuttle Atlantis. The image was taken with a digital still camera.

STS110-E-5064 (9 April 2002) --- Astronaut Lee M. E. Morin, STS-110 mission specialist, is photographed on the flight deck of the Space Shuttle Atlantis. The image was taken with a digital still camera.

ISS004-E-9962 (10 April 2002) --- Astronauts Rex J. Walheim (left), Ellen Ochoa, and Lee M. E. Morin, all STS-110 mission specialists, are photographed in the Destiny laboratory on the International Space Station (ISS).

KENNEDY SPACE CENTER, FLA. -- STS-110 Mission Specialist Lee Morin undergoes final check of his launch and entry suit. Morin will be taking his first Shuttle flight. The STS-110 payload includes the S0 Integrated Truss Structure (ITS), the Canadian Mobile Transporter, power distribution system modules, a heat pipe radiator for cooling, computers and a pair of rate gyroscopes. The 11-day mission is the 13th assembly flight to the ISS and includes four spacewalks to attach the S0 truss to the U.S. Lab Destiny. Launch is scheduled for April 4

KENNEDY SPACE CENTER, FLA. - STS-110 Mission Specialist Lee M.E. Morin is wished good luck by a member of the Closeout Crew before entering Space Shuttle Atlantis for launch. The White Room provides entry into the cockpit area of the orbiter. This is Morin's first Shuttle flight. STS-110 is carrying the S0 Integrated Truss Structure and Mobile Transporter (MT) on this 13th assembly flight to the International Space Station. On the 11-day mission, astronauts, including Morin, will make four spacewalks to attach the S0 truss, which will become the backbone of the Space Station, to the U.S. Lab, "Destiny." The MT, a space "railcar," is attached to the truss segment and will make its debut run during the flight. Launch is scheduled for 4:40 p.m. EDT (20:40 GMT)

ISS004-E-9967 (10 April 2002) --- Astronauts Lee M. E. Morin (left foreground) and Ellen Ochoa, both STS-110 mission specialists; along with astronaut Stephen N. Frick (left background), STS-110 pilot, cosmonaut Yury I. Onufrienko, Expedition Four mission commander, and astronaut Rex J. Walheim, STS-110 mission specialist, are photographed in the Zvezda Service Module on the International Space Station (ISS).

ISS004-E-9968 (10 April 2002) --- Astronauts Lee M. E. Morin (left foreground) and Ellen Ochoa, both STS-110 mission specialists, cosmonaut Yury I. Onufrienko (left background), Expedition Four mission commander, and astronaut Rex J. Walheim, STS-110 mission specialist, are photographed in the Zvezda Service Module on the International Space Station (ISS).

ISS004-E-10098 (16 April 2002) --- Astronaut Stephen N. Frick, STS-110 pilot, photographs crewmates in the Zvezda Service Module on the International Space Station (ISS). From the left are astronauts Michael J. Bloomfield, STS-110 mission commander, Jerry L. Ross and Lee M. E. Morin, both mission specialists. Astronaut Steven L. Smith, STS-110 mission specialist, floats above.

ISS004-E-10027 (12 April 2002) --- Astronauts Daniel W. Bursch (left), Expedition Four flight engineer, and Lee M. E. Morin, STS-110 mission specialist, move equipment in the Destiny laboratory on the International Space Station (ISS). Astronaut Jerry L. Ross, STS-110 mission specialist, is visible in the background.

The Orion space capsule along with NASA Astronauts Lee Morin, Alvin Drew, Kjell Lindgren, Serena Aunon, Kate Rubins, and Mike Massimino pass the Presidential viewing stand and President Barack Obama during the inaugural parade honoring Obama, Monday Jan. 21, 2013, in Washington. Obama was sworn-in as the nation's 44th President earlier in the day. Photo Credit: (NASA/Bill Ingalls)

The Orion space capsule along with NASA Astronauts Lee Morin, Alvin Drew, Kjell Lindgren, Serena Aunon, Kate Rubins, and Mike Massimino pass the Presidential viewing stand and President Barack Obama during the inaugural parade honoring Obama, Monday Jan. 21, 2013, in Washington. Obama was sworn-in as the nation's 44th President earlier in the day. Photo Credit: (NASA/Bill Ingalls)

KENNEDY SPACE CENTER, FLA. - STS-110 Mission Specialists Lee Morin and Rex Walheim look up at the S0 Integrated Truss Structure, part of the payload on their mission to the International Space Station. Crew members are at KSC for Terminal Countdown Demonstration Test activities that include the payload familiarization and a simulated launch countdown. Mission STS-110 is scheduled for launch April 4.

JOHNSON SPACE CENTER, HOUSTON, TEXAS. -- STS-110 CREW PORTRAIT -- (JSC STS110-5-002) -- These seven astronauts are in training for the STS-110 mission, scheduled to visit the International Space Station early next year. In front, from the left, are astronauts Stephen N. Frick, pilot; Ellen Ochoa, flight engineer; and Michael J. Bloomfield, mission commander; in the back, from left, are astronauts Steven L. Smith, Rex J. Walheim, Jerry L. Ross and Lee M.E. Morin, all mission specialists

ISS004-E-9974 (10 April 2002) --- Astronauts Steven L. Smith (left), STS-110 mission specialist, Stephen N. Frick, pilot, Lee M. E. Morin, mission specialist, hold cameras in the Zvezda Service Module on the International Space Station (ISS) while astronaut Ellen Ochoa, mission specialist, looks on.

KENNEDY SPACE CENTER, Fla. -- In the Operations and Checkout Building, STS-110 Mission Specialist Lee M. Morin checks out Integrated Truss Structure (ITS) S0, which will be part of the payload on the mission. He and other crew members are at KSC for a Crew Equipment Interface Test. The STS-110 crew comprises Commander Michael J. Bloomfield, Pilot Stephen N. Frick, Mission Specialists Jerry L. Ross , Steven L. Smith, Ellen Ochoa, Morin and Rex J. Walheim. The ITS S0 is part of the payload on the mission. It is the center segment they will be installing on the International Space Station, part of the 300-foot (91-meter) truss attached to the U.S. Lab. By assembly completion, four more truss segments will attach to either side of the S0 truss. STS-110 is currently scheduled to launch in February 2002

NASA Astronaut Kate Rubins smiles for the camera while signing autographs at the NASA booth set up on the National Mall as part of the National Day of Service, Saturday, January 19, 2013, in Washington. NASA along with other federal agencies set up along the Mall as part of events surrounding the inauguration of President Barack Obama. Photo Credit: (NASA/Carla Cioffi)

KENNEDY SPACE CENTER, FLA. -- In the Orbiter Processing Facility, STS-110 crew members look over the payload bay of Atlantis during Crew Equipment Integration Test activities, which include familiarization with the vehicle and payload. From left are Mission Specialist Jerry Ross, a technician, and Mission Specialist Lee Morin. The mission, 13th assembly flight to the International Space Station, includes the Integrated Truss Structure S0. The ITS S0 is the center segment on the Space Station, part of the 300-foot (91-meter) truss attached to the U.S. Lab. By assembly completion, four more truss segments will attach to either side of the S0 truss. STS-110 is scheduled to launch April 4, 2002

KENNEDY SPACE CENTER, FLA. -- The STS-110 crew poses under the Integrated Truss Structure S0, ready for transport to the launch pad. Standing left to right are Mission Specialist Jerry Ross, Pilot Stephen Frick, Mission Specialist Lee Morin, Commander Michael Bloomfield, and Mission Specialists Rex Walheim, Ellen Ochoa and Steven Smith. Scheduled for launch April 4, the 11-day STS-110 mission will feature Space Shuttle Atlantis docking with the International Space Station (ISS) and delivering the S0 truss, the centerpiece-segment of the primary truss structure that will eventually extend over 300 feet.

KENNEDY SPACE CENTER, FLA. -- In the Operations and Checkout Building, STS-110 Mission Specialist Lee Morin looks over equipment that will be on the mission. Other crew members (not shown) are Commander Michael J. Bloomfield, Pilot Stephen N. Frick, and Mission Specialists Steven L. Smith, Ellen Ochoa and Rex J. Walheim. Part of the payload on the mission is the Integrated Truss Structure S0. It is the center segment that they will be installing on the International Space Station, part of the 300-foot (91-meter) truss attached to the U.S. Lab. By assembly completion, four more truss segments will attach to either side of the S0 truss. STS-110 is currently scheduled to launch in April 2002

KENNEDY SPACE CENTER, FLA. -- In the Operations and Checkout Building, members of the STS-110 crew check out equipment that will be on their mission. From left are Mission Specialists Steven Smith, Lee Morin, Jerry Ross and Rex Walheim. Other crew members (not shown) are Commander Michael J. Bloomfield, Pilot Stephen N. Frick, and Mission Specialist Ellen Ochoa. Part of the payload on the mission is the Integrated Truss Structure S0. It is the center segment that they will be installing on the International Space Station, part of the 300-foot (91-meter) truss attached to the U.S. Lab. By assembly completion, four more truss segments will attach to either side of the S0 truss. STS-110 is currently scheduled to launch in April 2002

KENNEDY SPACE CENTER, FLA. -- STS-110 Mission Specialist Lee Morin arrives at the KSC Shuttle Landing Facility to prepare for launch April 4. The mission will be his first Space Shuttle flight. Mission STS-110 is the 13th assembly flight to the International Space Station. During four planned spacewalks, crew members will install the S0 Integrated Truss Structure (ITS), centerpiece of the orbiting International Space Station (ISS), at the center of the 10-truss, girderlike structure that will ultimately extend the length of a football field on the ISS. The S0 truss will be attached to the U.S. Lab, "Destiny," on the 11-day mission

KENNEDY SPACE CENTER, FLA. -- Atlantis touches down on runway 33 after completing the 10-day, 19-hour, 4.5-million mile mission STS-110 to the International Space Station. The orbiter carries the returning crew Commander Michael Bloomfield, Pilot Stephen Frick and Mission Specialists Jerry Ross, Steven Smith, Ellen Ochoa, Lee Morin and Rex Walheim. Main gear touchdown was 12:26:57 p.m. EDT, nose gear touchdown was 12:27:09 p.m. and wheel stop was 12:28:07 p.m. The crew delivered and installed the S0 truss, which will support cooling and power systems essential for the addition of future international laboratories, on the Station

KENNEDY SPACE CENTER, FLA. - Atlantis approaches landing on runway 33 after completing the 10-day, 19-hour, 4.5-million mile mission STS-110 to the International Space Station. The orbiter carries the returning crew Commander Michael Bloomfield, Pilot Stephen Frick and Mission Specialists Jerry Ross, Steven Smith, Ellen Ochoa, Lee Morin and Rex Walheim. Main gear touchdown was 12:26:57 p.m. EDT, nose gear touchdown was 12:27:09 p.m. and wheel stop was 12:28:07 p.m. The crew delivered and installed the S0 truss, which will support cooling and power systems essential for the addition of future international laboratories, on the Station

KENNEDY SPACE CENTER, FLA. -- The STS-110 crew poses for a photo after landing at the KSC Shuttle Landing Facility. Standing left to right are Mission Specialists Steven Smith, Jerry Ross, Lee Morin, Ellen Ocho and Rex Walheim; Pilot Stephen Frick; and Commander Michael Bloomfield. Mission STS-110 is the 13th assembly flight to the International Space Station. During four planned spacewalks, crew members will install the S0 Integrated Truss Structure (ITS), centerpiece of the orbiting International Space Station (ISS), at the center of the 10-truss, girderlike structure that will ultimately extend the length of a football field on the ISS. The S0 truss will be attached to the U.S. Lab, "Destiny," on the 11-day mission

KENNEDY SPACE CENTER, FLA. -- Atlantis touches down on runway 33 after completing the 10-day, 19-hour, 4.5-million mile mission STS-110 to the International Space Station. The orbiter carries the returning crew Commander Michael Bloomfield, Pilot Stephen Frick and Mission Specialists Jerry Ross, Steven Smith, Ellen Ochoa, Lee Morin and Rex Walheim. Main gear touchdown was 12:26:57 p.m. EDT, nose gear touchdown was 12:27:09 p.m. and wheel stop was 12:28:07 p.m. The crew delivered and installed the S0 truss, which will support cooling and power systems essential for the addition of future international laboratories, on the Station

This is the official STS-110 crew portrait. In front, from the left, are astronauts Stephen N. Frick, pilot; Ellen Ochoa, flight engineer; and Michael J. Bloomfield, mission commander; In the back, from left, are astronauts Steven L. Smith, Rex J. Walheim, Jerry L. Ross and Lee M.E. Morin, all mission specialists. Launched aboard the Space Shuttle Orbiter Atlantis on April 8, 2002, the STS-110 mission crew prepared the International Space Station (ISS) for future space walks by installing and outfitting a 43-foot-long Starboard side S0 truss and preparing the Mobile Transporter. The mission served as the 8th ISS assembly flight.

KENNEDY SPACE CENTER, FLA. -- In the Orbiter Processing Facility, STS-110 Mission Specialists Jerry Ross (upper right) and Lee Morin (lower right) check out the payload bay of Atlantis during Crew Equipment Integration Test activities, which include familiarization with the vehicle and payload. . The mission, 13th assembly flight to the International Space Station, includes the Integrated Truss Structure S0. The ITS S0 is the center segment on the Space Station, part of the 300-foot (91-meter) truss attached to the U.S. Lab. By assembly completion, four more truss segments will attach to either side of the S0 truss. STS-110 is scheduled to launch April 4, 2002

KENNEDY SPACE CENTER, FLA. -- -- STS-110 crew members sit in the slidewire basket, part of emergency egress equipment on the pad. From left are Mission Specialists Steven L. Smith, Lee M.E. Morin and Jerry L. Ross. The crew is taking part in Terminal Countdown Demonstration Test activities, which also include a simulated launch countdown, held at KSC prior to each Space Shuttle flight. Scheduled for launch April 4, the 11-day mission will feature Shuttle Atlantis docking with the International Space Station (ISS) and delivering the S0 truss, the centerpiece-segment of the primary truss structure that will eventually extend over 300 feet.

ISS004-E-10096 (16 April 2002) --- The Expedition Four and STS-110 crewmembers share a meal in the Zvezda Service Module on the International Space Station (ISS). From the left are astronauts Carl E. Walz (partially out of frame), Expedition Four flight engineer; Ellen Ochoa, STS-110 mission specialist; Michael J. Bloomfield, STS-110 mission commander; Jerry L. Ross, Lee M. E. Morin, Steven L. Smith, all STS-110 mission specialists; and Stephen N. Frick, STS-110 pilot. The remainders of the crews were out of frame.

JSC2002-E-14078 (20 April 2002) --- Astronaut Jerry L. Ross, STS-110 mission specialist, speaks from the lectern in Hangar 990 at Ellington Field during the crew return ceremonies. From the left (standing behind Ross) are astronauts Steven L. Smith, Lee M. E. Morin, Ellen Ochoa, Rex J. Walheim, all mission specialists; Stephen N. Frick, pilot; Michael J. Bloomfield, mission commander; and Johnson Space Center’s (JSC) Director Jefferson D. Howell, Jr.

ISS004-E-9944 (10 April 2002) --- The Space Shuttle Atlantis prepares to dock with the International Space Station (ISS) during the STS-110 mission. Aboard Atlantis are astronauts Michael J. Bloomfield, mission commander; Stephen N. Frick, pilot; Rex J. Walheim, Ellen Ochoa, Lee M. E. Morin, Jerry L. Ross, and Steven L. Smith, all mission specialists. The STS-110 crewmembers are delivering the S0 (S-zero) truss, which is visible in Atlantis’ payload bay. This image was taken by an Expedition Four crewmember.

KENNEDY SPACE CENTER, FLA. -- STS-110 Mission Specialist Jerry Ross waits his turn at driving the M-113 armored personnel carrier, part of Terminal Countdown Demonstration Test activities. In the background, right, is Mission Specialist Lee Morin. TCDT includes emergency egress training and a simulated launch countdown, and is held at KSC prior to each Space Shuttle flight. Scheduled for launch April 4, the 11-day mission will feature Shuttle Atlantis docking with the International Space Station (ISS) and delivering the S0 truss, the centerpiece-segment of the primary truss structure that will eventually extend over 300 feet

KENNEDY SPACE CENTER, FLA. -- Waiting his turn at driving the M-113 armored personnel carrier is STS-110 Mission Specialist Lee Morin. The driving is part of Terminal Countdown Demonstration Test activities, which include emergency egress training and a simulated launch countdown. The TCDT is held at KSC prior to each Space Shuttle flight. Scheduled for launch April 4, the 11-day mission will feature Shuttle Atlantis docking with the International Space Station (ISS) and delivering the S0 truss, the centerpiece-segment of the primary truss structure that will eventually extend over 300 feet

KENNEDY SPACE CENTER, FLA. -- STS-110 crew members practice emergency exit from the Fixed Service Structure during Terminal Countdown Demonstration Test. From left are Mission Specialists Jerry L. Ross, Lee M.E. Morin and Steven L. Smith. TCDT also includes a simulated launch countdown and is held at KSC prior to each Space Shuttle flight. Scheduled for launch April 4, the 11-day mission will feature Shuttle Atlantis docking with the International Space Station (ISS) and delivering the S0 truss, the centerpiece-segment of the primary truss structure that will eventually extend over 300 feet

KENNEDY SPACE CENTER, FLA. -- Making his first Shuttle flight, STS-110 Mission Specialist Lee M.E. Morin waits to finish suiting up for launch, scheduled for 4:40 p.m. EDT (20:40 GMT). STS-110 is the 13th assembly flight to the International Space Station, carrying the S0 Integrated Truss Structure and Mobile Transporter (MT). On the 11-day mission, the mission features four spacewalks to attach the S0 truss, which will become the backbone of the Space Station, to the U.S. Lab, "Destiny." The MT, a space "railcar," is attached to the truss segment and will make its debut run during the flight

KENNEDY SPACE CENTER, FLA. -- Prior to their departure, the STS-110 crew pauses for the media at the Shuttle Landing Facility. Standing left to right are Mission Specialists Jerry Ross, Steven Smith and Lee Morin; Commander Michael Bloomfield; Pilot Stephen Frick; and Mission Specialists Rex Walheim and Ellen Ochoa. The crew was at KSC for Terminal Countdown Demonstration Test activities that included the payload familiarization and a simulated launch countdown. Scheduled for launch April 4, the 11-day STS-110 mission will feature Space Shuttle Atlantis docking with the International Space Station (ISS) and delivering the S0 truss, the centerpiece-segment of the primary truss structure that will eventually extend over 300 feet

KENNEDY SPACE CENTER, FLA. - Atlantis drops toward runway 33 as it returns to KSC after a 10-day, 19-hour, 4.5-million mile mission to the International Space Station. . The orbiter carries the returning crew Commander Michael Bloomfield, Pilot Stephen Frick and Mission Specialists Jerry Ross, Steven Smith, Ellen Ochoa, Lee Morin and Rex Walheim. Main gear touchdown was 12:26:57 p.m. EDT, nose gear touchdown was 12:27:09 p.m. and wheel stop was 12:28:07 p.m. The crew delivered and installed the S0 truss, which will support cooling and power systems essential for the addition of future international laboratories, on the Station.

KENNEDY SPACE CENTER, FLA. -- During Terminal Countdown Demonstration Test activities, STS-110 Mission Specialist Lee Morin has his launch and entry suit checked for fit. The TCDT is held at KSC prior to each Space Shuttle flight to provide flight crews an opportunity to participate in simulated launch countdown activities. Scheduled for launch April 4, the 11-day mission will feature Shuttle Atlantis docking with the International Space Station (ISS) and delivering the S0 truss, the centerpiece-segment of the primary truss structure that will eventually extend over 300 feet.

KENNEDY SPACE CENTER, FLA. - Atlantis nears touchdown on runway 33 after completing the 10-day, 19-hour, 4.5-million mile mission STS-110 to the International Space Station. The orbiter carries the returning crew Commander Michael Bloomfield, Pilot Stephen Frick and Mission Specialists Jerry Ross, Steven Smith, Ellen Ochoa, Lee Morin and Rex Walheim. Main gear touchdown was 12:26:57 p.m. EDT, nose gear touchdown was 12:27:09 p.m. and wheel stop was 12:28:07 p.m. The crew delivered and installed the S0 truss, which will support cooling and power systems essential for the addition of future international laboratories, on the Station

KENNEDY SPACE CENTER, FLA. - A field of wild flowers greets Atlantis as it touches down on runway 33 at KSC, the drag chute just deployed. The landing completes the 10-day, 19-hour, 4.5-million mile mission STS-110 to the International Space Station. In the upper right corner is the chase plane following Atlantis' path. The orbiter carries the returning crew Commander Michael Bloomfield, Pilot Stephen Frick and Mission Specialists Jerry Ross, Steven Smith, Ellen Ochoa, Lee Morin and Rex Walheim. Main gear touchdown was 12:26:57 p.m. EDT, nose gear touchdown was 12:27:09 p.m. and wheel stop was 12:28:07 p.m. The crew delivered and installed the S0 truss, which will support cooling and power systems essential for the addition of future international laboratories, on the Station.

KENNEDY SPACE CENTER, FLA. - Standing underneath Atlantis, the STS-110 crew poses for a photo. From left are Pilot Stephen Frick, Mission Specialist Rex Walheim, Commander Michael Bloomfield, and Mission Specialists Jerry Ross and Steven Smith. The sixth and seventh crew members, Mission Specialist Ellen Ochoa and Lee Morin, are missing from the photo. Atlantis landed on KSC's Shuttle Landing Facility after 171 orbits, completing a 10-day, 19-hour, 4.5-million mile mission to the International Space Station. Main gear touchdown was 12:26:57 p.m. EDT, nose gear touchdown was 12:27:09 p.m. and wheel stop was 12:28:07 p.m. The crew delivered and installed the S0 truss, which will support cooling and power systems essential for the addition of future international laboratories, on the Station

KENNEDY SPACE CENTER, FLA. - Atlantis kicks up dust as it touches down on runway 33 after completing the 10-day, 19-hour, 4.5-million mile mission STS-110 to the International Space Station. The orbiter carries the returning crew Commander Michael Bloomfield, Pilot Stephen Frick and Mission Specialists Jerry Ross, Steven Smith, Ellen Ochoa, Lee Morin and Rex Walheim. Main gear touchdown was 12:26:57 p.m. EDT, nose gear touchdown was 12:27:09 p.m. and wheel stop was 12:28:07 p.m. The crew delivered and installed the S0 truss, which will support cooling and power systems essential for the addition of future international laboratories, on the Station

KENNEDY SPACE CENTER, FLA. - The STS-110 crew waves to spectators before leaving the Shuttle Landing Facility for crew quarters. . From left are Commander Michael Bloomfield, Pilot Stephen Frick, and Mission Specialists Rex Walheim, Jerry Ross and Steven Smith. Missing crew members are Mission Specialists Ellen Ochoa and Lee Morin. Atlantis, behind them, landed on KSC's Shuttle Landing Facility after 171 orbits, completing a 10-day, 19-hour, 4.5-million mile mission to the International Space Station. Main gear touchdown was 12:26:57 p.m. EDT, nose gear touchdown was 12:27:09 p.m. and wheel stop was 12:28:07 p.m. The crew delivered and installed the S0 truss, which will support cooling and power systems essential for the addition of future international laboratories, on the Station

KENNEDY SPACE CENTER, FLA. -- In the Operations and Checkout Building, members of the STS-110 crew take a break from checking equipment to pose for a photo: (from left) Mission Specialists Steven Smith, Rex Walheim, Jerry Ross and Lee Morin. Other crew members (not shown) are Commander Michael J. Bloomfield, Pilot Stephen N. Frick, and Mission Specialist Ellen Ochoa. Part of the payload on the mission is the Integrated Truss Structure S0. It is the center segment that they will be installing on the International Space Station, part of the 300-foot (91-meter) truss attached to the U.S. Lab. By assembly completion, four more truss segments will attach to either side of the S0 truss. STS-110 is currently scheduled to launch in April 2002

KENNEDY SPACE CENTER, FLA. -- The STS-110 crew heads for the Astrovan and a ride to Launch Pad 39B for the launch scheduled at 4:40 p.m. EDT (20:40 GMT). From left-foreground are Mission Specialists Jerry L. Ross and Rex J. Walheim; left, second row, are Mission Specialists Steven L. Smith, Lee M.E. Morin, Ellen Ochoa; Pilot Stephen N. Frick; and Commander Michael J. Bloomfield. STS-110 is the 13th assembly flight to the International Space Station, carrying the S0 Integrated Truss Structure and Mobile Transporter (MT). On the 11-day mission, the mission features four spacewalks to attach the S0 truss, which will become the backbone of the Space Station, to the U.S. Lab, "Destiny." The MT, a space "railcar," is attached to the truss segment and will make its debut run during the flight

KENNEDY SPACE CENTER, FLA. -- Atlantis lands at the KSC Shuttle Landing Facility, runway 33, after completing the 10-day, 19-hour, 4.5-million mile mission STS-110 to the International Space Station. The orbiter carries the crew of seven: Commander Michael Bloomfield, Pilot Stephen Frick and Mission Specialists Jerry Ross, Steven Smith, Ellen Ochoa, Lee Morin and Rex Walheim. Main gear touchdown was 12:26:57 p.m. EDT, nose gear touchdown was 12:27:09 p.m. and wheel stop was 12:28:07 p.m. The crew delivered and installed the S0 truss, which will support cooling and power systems essential for the addition of future international laboratories, on the Station

KENNEDY SPACE CENTER, FLA. -- The STS-110 crew poses on the 225-foot level of the Fixed Service Structure on the launch pad during Terminal Countdown Demonstration Test activities. Kneeling in front are Pilot Stephen Frick and Mission Specialist Jerry Ross. Behind them are Mission Specialists Ellen Ochoa and Rex Walheim. In the rear are Commander Michael Bloomfield and Mission Specialists Lee Morin and Steven Smith. The TCDT, which includes emergency egress training and a simulated launch countdown, is held at KSC prior to each Space Shuttle flight. Scheduled for launch April 4, the 11-day mission will feature Shuttle Atlantis docking with the International Space Station (ISS) and delivering the S0 truss, the centerpiece-segment of the primary truss structure that will eventually extend over 300 feet

KENNEDY SPACE CENTER, FLA. -- Atlantis touches down on runway 33 at KSC after completing the 10-day, 19-hour, 4.5-million mile mission STS-110 to the International Space Station. The vehicle carries the returning crew Commander Michael Bloomfield, Pilot Stephen Frick and Mission Specialists Jerry Ross, Steven Smith, Ellen Ochoa, Lee Morin and Rex Walheim. Main gear touchdown was 12:26:57 p.m. EDT, nose gear touchdown was 12:27:09 p.m. and wheel stop was 12:28:07 p.m. The crew delivered and installed the S0 truss, which will support cooling and power systems essential for the addition of future international laboratories, on the Station.

KENNEDY SPACE CENTER, FLA. - Showing their eagerness for launch, the STS-110 crew wave as they stride out of the Operations and Checkout Building. Leading the way in the front row are Pilot Stephen N. Frick (left) and Commander Michael J. Bloomfield (right); in the second row are Mission Specialists Rex J. Walheim and Ellen Ochoa; third row, Jerry L. Ross and Lee M.E. Morin; in the rear is Mission Specialist Steven L. Smith. STS-110 is the 13th assembly flight to the International Space Station, carrying the S0 Integrated Truss Structure and Mobile Transporter (MT). On the 11-day mission, the mission features four spacewalks to attach the S0 truss, which will become the backbone of the Space Station, to the U.S. Lab, "Destiny." The MT, a space "railcar," is attached to the truss segment and will make its debut run during the flight. Launch is scheduled for 4:40 p.m. EDT (20:40 GMT). Photo by Scott Andrews

KENNEDY SPACE CENTER, FLA. - Atlantis is slowed during landing by the open drag chute behind the tail. The orbiter and crew -- Commander Michael Bloomfield, Pilot Stephen Frick and Mission Specialists Jerry Ross, Steven Smith, Ellen Ochoa, Lee Morin and Rex Walheim - have just completed the 10-day, 19-hour, 4.5-million mile mission STS-110 to the International Space Station. Main gear touchdown was 12:26:57 p.m. EDT, nose gear touchdown was 12:27:09 p.m. and wheel stop was 12:28:07 p.m. The crew delivered and installed the S0 truss, which will support cooling and power systems essential for the addition of future international laboratories, on the Station

KENNEDY SPACE CENTER, FLA. -- Atlantis approaches runway 33 at KSC's Shuttle Landing Facility, spooking two nearby storks. The landing completes the 10-day, 19-hour, 4.5-million mile mission STS-110 to the International Space Station. The orbiter carries the returning crew Commander Michael Bloomfield, Pilot Stephen Frick and Mission Specialists Jerry Ross, Steven Smith, Ellen Ochoa, Lee Morin and Rex Walheim. Main gear touchdown was 12:26:57 p.m. EDT, nose gear touchdown was 12:27:09 p.m. and wheel stop was 12:28:07 p.m. The crew delivered and installed the S0 truss, which will support cooling and power systems essential for the addition of future international laboratories, on the Station

KENNEDY SPACE CENTER, FLA. -- The drag chute deploys as Atlantis touches down on runway 33 at KSC's Shuttle Landing Facility. The landing completes the 10-day, 19-hour, 4.5-million mile mission STS-110 to the International Space Station. The orbiter carries the returning crew Commander Michael Bloomfield, Pilot Stephen Frick and Mission Specialists Jerry Ross, Steven Smith, Ellen Ochoa, Lee Morin and Rex Walheim. Main gear touchdown was 12:26:57 p.m. EDT, nose gear touchdown was 12:27:09 p.m. and wheel stop was 12:28:07 p.m. The crew delivered and installed the S0 truss, which will support cooling and power systems essential for the addition of future international laboratories, on the Station

KENNEDY SPACE CENTER, FLA. - Atlantis and crew return to Earth, touching down on the KSC Shuttle Landing Facility runway 33, after completing the 10-day, 19-hour, 4.5-million mile mission STS-110 to the International Space Station. The crew comprises Commander Michael Bloomfield, Pilot Stephen Frick and Mission Specialists Jerry Ross, Steven Smith, Ellen Ochoa, Lee Morin and Rex Walheim. Main gear touchdown was 12:26:57 p.m. EDT, nose gear touchdown was 12:27:09 p.m. and wheel stop was 12:28:07 p.m. The crew delivered and installed the S0 truss, which will support cooling and power systems essential for the addition of future international laboratories, on the Station

KENNEDY SPACE CENTER, FLA. -- Dwarfed by the external tank and solid rocket boosters of Space Shuttle Atlantis is the STS-110 crew. Standing left to right are Mission Specialists Jerry Ross, Rex Walheim and Lee Morin; Commander Michael Bloomfield; Mission Specialist Ellen Ochoa; Pilot Stephen Frick; and Mission Specialist Steven Smith. The crew is taking a break during Terminal Countdown Demonstration Test activities to pose for the photo. The TCDT, which includes emergency egress training and a simulated launch countdown, is held at KSC prior to each Space Shuttle flight. Scheduled for launch April 4, the 11-day mission will feature Shuttle Atlantis docking with the International Space Station (ISS) and delivering the S0 truss, the centerpiece-segment of the primary truss structure that will eventually extend over 300 feet

KENNEDY SPACE CENTER, FLA. -- Before departing for Houston, the STS-110 crew poses in front of the countdown clock that faces the grandstand at the Press Site. Standing left to right are Commander Michael Bloomfield, Mission Specialists Rex Walheim and Jerry Ross, Pilot Stephen Frick, and Mission Specialists Ellen Ochoa, Lee Morin and Steven Smith. The crew was at KSC for Terminal Countdown Demonstration Test activities that included payload familiarization and a simulated launch countdown. Scheduled for launch April 4, the 11-day STS-110 mission will feature Space Shuttle Atlantis docking with the International Space Station (ISS) and delivering the S0 truss, the centerpiece-segment of the primary truss structure that will eventually extend over 300 feet

KENNEDY SPACE CENTER, FLA. - Spectators at the Shuttle Landing Facility watch Atlantis touching down on runway 33 after completing the 10-day, 19-hour, 4.5-million mile mission STS-110 to the International Space Station. The orbiter carries the returning crew Commander Michael Bloomfield, Pilot Stephen Frick and Mission Specialists Jerry Ross, Steven Smith, Ellen Ochoa, Lee Morin and Rex Walheim. Main gear touchdown was 12:26:57 p.m. EDT, nose gear touchdown was 12:27:09 p.m. and wheel stop was 12:28:07 p.m. The crew delivered and installed the S0 truss, which will support cooling and power systems essential for the addition of future international laboratories, on the Station

KENNEDY SPACE CENTER, FLA. - Atlantis swoops down over vegetation and water as it approaches runway 33 at KSC's Shuttle Landing Facility. The landing completes the 10-day, 19-hour, 4.5-million mile mission STS-110 to the International Space Station.. The orbiter carries the returning crew Commander Michael Bloomfield, Pilot Stephen Frick and Mission Specialists Jerry Ross, Steven Smith, Ellen Ochoa, Lee Morin and Rex Walheim. Main gear touchdown was 12:26:57 p.m. EDT, nose gear touchdown was 12:27:09 p.m. and wheel stop was 12:28:07 p.m. The crew delivered and installed the S0 truss, which will support cooling and power systems essential for the addition of future international laboratories, on the Station

KENNEDY SPACE CENTER, FLA. -- The STS-110 crew exit from the Crew Hatch Access Vehicle and are greeted by NASA Administrator Sean O'Keefe, Center Director Roy Bridges Jr. and mission managers. The crew members are, left to right, Commander Michael Bloomfield, Pilot Stephen Frick, and Mission Specialists Rex Walheim, Jerry Ross and Steven Smith. Missing from the photo are Mission Specialists Ellen Ochoa and Lee Morin. Atlantis landed on KSC's Shuttle Landing Facility after 171 orbits, completing a 10-day, 19-hour, 4.5-million mile mission to the International Space Station. Main gear touchdown was 12:26:57 p.m. EDT, nose gear touchdown was 12:27:09 p.m. and wheel stop was 12:28:07 p.m. The crew delivered and installed the S0 truss, which will support cooling and power systems essential for the addition of future international laboratories, on the Station

KENNEDY SPACE CENTER, FLA. -- Standing in front of Atlantis, the STS-110 crew poses for a photo. From left are Commander Michael Bloomfield, Pilot Stephen Frick, and Mission Specialists Rex Walheim, Jerry Ross and Steven Smith. Missing crew members are Mission Specialists Ellen Ochoa and Lee Morin. Atlantis landed on KSC's Shuttle Landing Facility after 171 orbits, completing a 10-day, 19-hour, 4.5-million mile mission to the International Space Station. Main gear touchdown was 12:26:57 p.m. EDT, nose gear touchdown was 12:27:09 p.m. and wheel stop was 12:28:07 p.m. The crew delivered and installed the S0 truss, which will support cooling and power systems essential for the addition of future international laboratories, on the Station

KENNEDY SPACE CENTER, FLA. -- The STS-110 crew takes a break on the launch pad during Terminal Countdown Demonstration Test activities to pose for a photo. Standing left to right are Pilot Stephen Frick, Mission Specialist Ellen Ochoa, Commander Michael Bloomfield, and Mission Specialists Lee Morin, Rex Walheim, Steven Smith and Jerry Ross. The TCDT, which includes emergency egress training and a simulated launch countdown, is held at KSC prior to each Space Shuttle flight. Scheduled for launch April 4, the 11-day mission will feature Shuttle Atlantis docking with the International Space Station (ISS) and delivering the S0 truss, the centerpiece-segment of the primary truss structure that will eventually extend over 300 feet

KENNEDY SPACE CENTER, FLA. - A wood stork appears to chase Atlantis as it lands on runway 33 with its drag chute deployed. The landing completes the 10-day, 19-hour, 4.5-million mile mission STS-110 to the International Space Station. In the upper right corner is the chase plane following Atlantis' path. The orbiter carries the returning crew Commander Michael Bloomfield, Pilot Stephen Frick and Mission Specialists Jerry Ross, Steven Smith, Ellen Ochoa, Lee Morin and Rex Walheim. Main gear touchdown was 12:26:57 p.m. EDT, nose gear touchdown was 12:27:09 p.m. and wheel stop was 12:28:07 p.m. The crew delivered and installed the S0 truss, which will support cooling and power systems essential for the addition of future international laboratories, on the Station.

KENNEDY SPACE CENTER, FLA. -- While gathering with friends and family at the pad, the STS-110 crew poses in front of Space Shuttle Atlantis still enclosed by the Rotating Service Structure. Standing left to right are Mission Specialist Steven Smith, Jerry Ross and Lee Morin; Pilot Stephen Frick; Mission Specialist Rex Walheim; Commander Michael Bloomfield; and Mission Specialist Ellen Ochoa. The mission continues the expansion of the International Space Station by delivering and installing the S0 Integrated Truss Structure, the initial section of a framework that will eventually hold the power and cooling systems needed for future international research laboratories. The payload also comprises the Canadian Mobile Transporter (attached to the S0 truss), power distribution system modules, a heat pipe radiator for cooling, computers and a pair of rate gyroscopes. The 11-day mission is the 13th assembly flight to the ISS and includes four spacewalks to attach the S0 truss to the U.S. Lab Destiny. Launch is scheduled for April 4

KENNEDY SPACE CENTER, FLA. -- After landing at the KSC Shuttle Landing Facility to prepare for launch April 4, the STS-110 crew pauses for a photo and a few words to the media. Standing left to right are Mission Specialists Steven Smith, Jerry Ross, Lee Morin, Ellen Ocho and Rex Walheim; Pilot Stephen Frick; and Commander Michael Bloomfield at the microphone. Mission STS-110 is the 13th assembly flight to the International Space Station. During four planned spacewalks, crew members will install the S0 Integrated Truss Structure (ITS), centerpiece of the orbiting International Space Station (ISS), at the center of the 10-truss, girderlike structure that will ultimately extend the length of a football field on the ISS. The S0 truss will be attached to the U.S. Lab, "Destiny," on the 11-day mission

KENNEDY SPACE CENTER, FLA. - Atlantis, with its drag chute deployed, finds the runway beyond the vegetation at KSC's Shuttle Landing Facility. The landing completes the 10-day, 19-hour, 4.5-million mile mission STS-110 to the International Space Station. The orbiter carries the returning crew Commander Michael Bloomfield, Pilot Stephen Frick and Mission Specialists Jerry Ross, Steven Smith, Ellen Ochoa, Lee Morin and Rex Walheim. Main gear touchdown was 12:26:57 p.m. EDT, nose gear touchdown was 12:27:09 p.m. and wheel stop was 12:28:07 p.m. The crew delivered and installed the S0 truss, which will support cooling and power systems essential for the addition of future international laboratories, on the Station

KENNEDY SPACE CENTER, FLA. - Atlantis kicks up dust as its main gear touches down on runway 33 at KSC's Shuttle Landing Facility. The landing completes the 10-day, 19-hour, 4.5-million mile mission STS-110 to the International Space Station. The orbiter carries the returning crew Commander Michael Bloomfield, Pilot Stephen Frick and Mission Specialists Jerry Ross, Steven Smith, Ellen Ochoa, Lee Morin and Rex Walheim. Main gear touchdown was 12:26:57 p.m. EDT, nose gear touchdown was 12:27:09 p.m. and wheel stop was 12:28:07 p.m. The crew delivered and installed the S0 truss, which will support cooling and power systems essential for the addition of future international laboratories, on the Station

KENNEDY SPACE CENTER, Fla. -- In the Operations and Checkout Building, STS-110 crew members check out Integrated Truss Structure (ITS) S0, which will be part of the payload on the mission. On the left are Mission Specialists Jerry L. Ross and Rex J. Walheim. On the right, standing next to two trainers, is Mission Specialist Lee M. Morin. They and other crew members are taking part in a Crew Equipment Interface Test at KSC. Not shown are Commander Michael J. Bloomfield, Pilot Stephen N. Frick, and Mission Specialists Steven L. Smith and Ellen Ochoa. The ITS S0 is part of the payload on the mission. It is the center segment they will be installing on the International Space Station, part of the 300-foot (91-meter) truss attached to the U.S. Lab. By assembly completion, four more truss segments will attach to either side of the S0 truss. STS-110 is currently scheduled to launch in February 2002

KENNEDY SPACE CENTER, FLA. -- In the Operations and Checkout Building, members of the STS-110 crew check out equipment that will be on their mission. At center are Mission Specialists Jerry L. Ross and Lee Morin. Other crew members (not shown) are Commander Michael J. Bloomfield, Pilot Stephen N. Frick, and Mission Specialists Steven L. Smith, Ellen Ochoa and Rex J. Walheim. Part of the payload on the mission is the Integrated Truss Structure S0. It is the center segment that they will be installing on the International Space Station, part of the 300-foot (91-meter) truss attached to the U.S. Lab. By assembly completion, four more truss segments will attach to either side of the S0 truss. STS-110 is currently scheduled to launch in April 2002

KENNEDY SPACE CENTER, Fla. -- In the Operations and Checkout Building, during a Crew Equipment Interface Test, members of the STS-110 crew check out Integrated Truss Structure (ITS) S0, which will be part of the payload on their mission. At left is Mission Specialist Jerry L. Ross, with a camera. Standing (center) are Mission Specialists Steven L. Smith and Rex J. Walheim. Other crew members (not shown) are Commander Michael J. Bloomfield, Pilot Stephen N. Frick, and Missin Specialists Ellen Ochoa and Lee M. Morin. The ITS S0 is part of the payload on the mission. It is the center segment they will be installing on the International Space Station, part of the 300-foot (91-meter) truss attached to the U.S. Lab. By assembly completion, four more truss segments will attach to either side of the S0 truss. STS-110 is currently scheduled to launch in February 2002

KENNEDY SPACE CENTER, FLA. -- With the external tank and solid rocket boosters of Space Shuttle Atlantis looming above them, the STS-110 crew takes a break during Terminal Countdown Demonstration Test activities to pose for a photo. . Standing left to right are Mission Specialists Jerry Ross, Rex Walheim and Lee Morin; Commander Michael Bloomfield; Mission Specialist Ellen Ochoa; Pilot Stephen Frick; and Mission Specialist Steven Smith. The TCDT, which includes emergency egress training and a simulated launch countdown, is held at KSC prior to each Space Shuttle flight. Scheduled for launch April 4, the 11-day mission will feature Shuttle Atlantis docking with the International Space Station (ISS) and delivering the S0 truss, the centerpiece-segment of the primary truss structure that will eventually extend over 300 feet

KENNEDY SPACE CENTER, FLA. -- Atlantis kicks up dust as its main gear touches down on runway 33 at KSC's Shuttle Landing Facility. The landing completes the 10-day, 19-hour, 4.5-million mile mission STS-110 to the International Space Station. The orbiter carries the returning crew Commander Michael Bloomfield, Pilot Stephen Frick and Mission Specialists Jerry Ross, Steven Smith, Ellen Ochoa, Lee Morin and Rex Walheim. Main gear touchdown was 12:26:57 p.m. EDT, nose gear touchdown was 12:27:09 p.m. and wheel stop was 12:28:07 p.m. The crew delivered and installed the S0 truss, which will support cooling and power systems essential for the addition of future international laboratories, on the Station

KENNEDY SPACE CENTER, FLA. -- Members of the STS-110 crew pose with NASA Administrator Sean O'Keefe in front of orbiter Atlantis after their return from the International Space Station. Standing left to right are Mission Specialists Rex Walheim and Jerry Ross, Commander Michael Bloomfield, O'Keefe, Pilot Stephen Frick and Mission Specialist Steven Smith. Missing crew members are Mission Specialists Ellen Ochoa and Lee Morin. Atlantis landed on KSC's Shuttle Landing Facility after 171 orbits, completing a 10-day, 19-hour, 4.5-million mile mission. Main gear touchdown was 12:26:57 p.m. EDT, nose gear touchdown was 12:27:09 p.m. and wheel stop was 12:28:07 p.m. The crew delivered and installed the S0 truss, which will support cooling and power systems essential for the addition of future international laboratories, on the Station

KENNEDY SPACE CENTER, FLA. -- The STS-110 crew poses in front of a T-38 jet aircraft at the Shuttle Landing Facility before departing for Houston. Standing left to right are Commander Michael Bloomfield, Pilot Stephen Frick and Mission Specialists Rex Walheim, Lee Morin, Ellen Ochoa, Jerry Ross and Steven Smith. The crew was at KSC for Terminal Countdown Demonstration Test activities that included payload familiarization and a simulated launch countdown. Scheduled for launch April 4, the 11-day STS-110 mission will feature Space Shuttle Atlantis docking with the International Space Station (ISS) and delivering the S0 truss, the centerpiece-segment of the primary truss structure that will eventually extend over 300 feet

KENNEDY SPACE CENTER, FLA. -- The STS-110 crew heads for the Astrovan to take them to the launch pad and a simulated launch countdown. From left are Mission Specialists Jerry Ross, Lee Morin, Steven Smith (rear), Rex Walheim and Ellen Ochoa; Pilot Stephen Frick and Commander Michael Bloomfield. The simulation is part of Terminal Countdown Demonstration Test activities. TCDT also includes emergency egress training and is held at KSC prior to each Space Shuttle flight. Scheduled for launch April 4, the 11-day mission will feature Shuttle Atlantis docking with the International Space Station (ISS) and delivering the S0 truss, the centerpiece-segment of the primary truss structure that will eventually extend over 300 feet

KENNEDY SPACE CENTER, FLA. -- Atlantis approaches touchdown on runway 33 at KSC's Shuttle Landing Facility. The landing completes the 10-day, 19-hour, 4.5-million mile mission STS-110 to the International Space Station. In the upper right corner is the chase plane following Atlantis' path. The orbiter carries the returning crew Commander Michael Bloomfield, Pilot Stephen Frick and Mission Specialists Jerry Ross, Steven Smith, Ellen Ochoa, Lee Morin and Rex Walheim. Main gear touchdown was 12:26:57 p.m. EDT, nose gear touchdown was 12:27:09 p.m. and wheel stop was 12:28:07 p.m. The crew delivered and installed the S0 truss, which will support cooling and power systems essential for the addition of future international laboratories, on the Station

KENNEDY SPACE CENTER, FLA. -- Atlantis kicks up dust as its main gear touches down on runway 33 at KSC's Shuttle Landing Facility. The landing completes the 10-day, 19-hour, 4.5-million mile mission STS-110 to the International Space Station. The orbiter carries the returning crew Commander Michael Bloomfield, Pilot Stephen Frick and Mission Specialists Jerry Ross, Steven Smith, Ellen Ochoa, Lee Morin and Rex Walheim. Main gear touchdown was 12:26:57 p.m. EDT, nose gear touchdown was 12:27:09 p.m. and wheel stop was 12:28:07 p.m. The crew delivered and installed the S0 truss, which will support cooling and power systems essential for the addition of future international laboratories, on the Station

KENNEDY SPACE CENTER, FLA. - With the Vehicle Assembly Building in the background, Atlantis is ready to touch down on runway 33 after completing the 10-day, 19-hour, 4.5-million mile mission STS-110 to the International Space Station. The orbiter carries the returning crew Commander Michael Bloomfield, Pilot Stephen Frick and Mission Specialists Jerry Ross, Steven Smith, Ellen Ochoa, Lee Morin and Rex Walheim. Main gear touchdown was 12:26:57 p.m. EDT, nose gear touchdown was 12:27:09 p.m. and wheel stop was 12:28:07 p.m. The crew delivered and installed the S0 truss, which will support cooling and power systems essential for the addition of future international laboratories, on the Station

KENNEDY SPACE CENTER, FLA. -- A wood stork appears to chase Atlantis as it lands on runway 33 with its drag chute deployed. The landing completes the 10-day, 19-hour, 4.5-million mile mission STS-110 to the International Space Station. In the upper right corner is the chase plane following Atlantis' path. The orbiter carries the returning crew Commander Michael Bloomfield, Pilot Stephen Frick and Mission Specialists Jerry Ross, Steven Smith, Ellen Ochoa, Lee Morin and Rex Walheim. Main gear touchdown was 12:26:57 p.m. EDT, nose gear touchdown was 12:27:09 p.m. and wheel stop was 12:28:07 p.m. The crew delivered and installed the S0 truss, which will support cooling and power systems essential for the addition of future international laboratories, on the Station

KENNEDY SPACE CENTER, FLA. -- While gathering with friends and family at the pad, the STS-110 crew poses in front of Space Shuttle Atlantis still enclosed by the Rotating Service Structure. Standing left to right are Mission Specialist Steven Smith, Jerry Ross and Lee Morin; Pilot Stephen Frick; Mission Specialist Rex Walheim; Commander Michael Bloomfield; and Mission Specialist Ellen Ochoa. The mission continues the expansion of the International Space Station by delivering and installing the S0 Integrated Truss Structure, the initial section of a framework that will eventually hold the power and cooling systems needed for future international research laboratories. The payload also comprises the Canadian Mobile Transporter (attached to the S0 truss), power distribution system modules, a heat pipe radiator for cooling, computers and a pair of rate gyroscopes. The 11-day mission is the 13th assembly flight to the ISS and includes four spacewalks to attach the S0 truss to the U.S. Lab Destiny. Launch is scheduled for April 4

KENNEDY SPACE CENTER, Fla. -- From a vantage point below it, members of the STS-110 crew check out Integrated Truss Structure (ITS) S0, which is in the Operations and Checkout Building. From left are Mission Specialists Rex J. Walheim, Jerry L. Ross and Lee M. Morin. They and other crew members are taking part in a Crew Equipment Interface Test at KSC. Not shown are Commander Michael J. Bloomfield, Pilot Stephen N. Frick, and Mission Specialists Steven L. Smith and Ellen Ochoa. The ITS S0 is part of the payload on the mission. It is the center segment they will be installing on the International Space Station, part of the 300-foot (91-meter) truss attached to the U.S. Lab. By assembly completion, four more truss segments will attach to either side of the S0 truss. STS-110 is currently scheduled to launch in February 2002

KENNEDY SPACE CENTER, FLA. -- The STS-110 crew walks out of the Operations and Checkout Building on their way to the launch pad for a simulated launch countdown. From the rear, left row, are Mission Specialists Jerry Ross and Rex Walheim, Pilot Stephen Frick; right row, Mission Specialists Steven Smith, Lee Morin and Ellen Ocho, and Commander Michael Bloomfield. The simulation is part of Terminal Countdown Demonstration Test activities. TCDT also includes emergency egress training and is held at KSC prior to each Space Shuttle flight. Scheduled for launch April 4, the 11-day mission will feature Shuttle Atlantis docking with the International Space Station (ISS) and delivering the S0 truss, the centerpiece-segment of the primary truss structure that will eventually extend over 300 feet

STS-110 Mission Specialists Jerry L. Ross and Lee M.E. Morin work in tandem on the fourth scheduled EVA session for the STS-110 mission aboard the Space Shuttle Orbiter Atlantis. Ross is anchored on the mobile foot restraint on the International Space Station's (ISS) Canadarm2, while Morin works inside the S0 (S-zero) truss. The STS-110 mission prepared the Station for future spacewalks by installing and outfitting a 43-foot-long S0 truss and preparing the Mobile Transporter. The 27,000 pound S0 Truss was the first of 9 segments that will make up the Station's external framework that will eventually stretch 356 feet (109 meters), or approximately the length of a football field. This central truss segment also includes a flatcar called the Mobile Transporter and rails that will become the first "space railroad," which will allow the Station's robotic arm to travel up and down the finished truss for future assembly and maintenance. The completed truss structure will hold solar arrays and radiators to provide power and cooling for additional international research laboratories from Japan and Europe that will be attached to the Station. Milestones of the S-110 mission included the first time the ISS robotic arm was used to maneuver spacewalkers around the Station and marked the first time all spacewalks were based out of the Station's Quest Airlock. It was also the first Shuttle to use three Block II Main Engines. The Space Shuttle Orbiter Atlantis, STS-110 mission, was launched April 8, 2002 and returned to Earth April 19, 2002.

KENNEDY SPACE CENTER, FLA. -- The STS-110 crew relaxes at the traditional crew meal before getting ready for launch later in the day. Seated, from left, are Mission Specialits Rex J. Walheim and Steven L. Smith; Pilot Stephen N. Frick; Commander Michael J. Bloomfield; and Mission Specialists Ellen Ochoa, Jerry L. Ross and Lee M.E. Morin. The cake on the table is also traditional, featuring the mission patch. STS-110 is the 13th assembly flight to the International Space Station, carrying the S0 Integrated Truss Structure and Mobile Transporter (MT). On the 11-day mission, the mission features four spacewalks to attach the S0 truss, which will become the backbone of the Space Station, to the U.S. Lab, "Destiny." The MT, a space "railcar," is attached to the truss segment and will make its debut run during the flight. Among the seven astronauts, Walheim and Frick are making their first Shuttle flight; Ross is making a record-breaking seventh flight. Launch is scheduled for 4:40 p.m. EDT April 8

Posed inside the Destiny Laboratory aboard the International Space Station (ISS) are the STS-110 and Expedition Four crews for a traditional onboard portrait From the left, bottom row, are astronauts Ellen Ochoa, STS mission specialist, Michael J. Bloomfield, STS mission commander, and Yury I Onufrienko, Expedition Four mission commander. From the left, middle row, are astronauts Daniel W. Bursch, Expedition Four flight engineer, Rex J. Walheim, STS mission specialist, and Carl E. Walz, Expedition Four flight engineer. From the left, top row, are astronauts Stephen N. Frick, STS pilot; Jerry L. Ross, Lee M.E. Morin, and Steven L. Smith, all mission specialists. Launched aboard the Space Shuttle Orbiter Atlantis on April 8, 2002, the STS-110 mission crew prepared the ISS for future space walks by installing and outfitting the 43-foot-long Starboard side S0 truss and preparing the Mobile Transporter. The mission served as the 8th ISS assembly flight.

Launched aboard the Space Shuttle Orbiter Atlantis on April 8, 2002, the STS-110 mission prepared the International Space Station (ISS) for future space walks by installing and outfitting the 43-foot-long Starboard side S0 (S-zero) truss and preparing the first railroad in space, the Mobile Transporter. The 27,000 pound S0 truss was the first of 9 segments that will make up the Station's external framework that will eventually stretch 356 feet (109 meters), or approximately the length of a football field. This central truss segment also includes a flatcar called the Mobile Transporter and rails that will become the first "space railroad," which will allow the Station's robotic arm to travel up and down the finished truss for future assembly and maintenance. The completed truss structure will hold solar arrays and radiators to provide power and cooling for additional international research laboratories from Japan and Europe that will be attached to the Station. STS-110 Extravehicular Activity (EVA) marked the first use of the Station's robotic arm to maneuver space walkers around the Station and was the first time all of a shuttle crew's space walks were based out of the Station's Quest Airlock. In this photograph, Astronaut Jerry L. Ross, mission specialist, anchored on the end of the Canadarm2, moves near the newly installed S0 truss. Astronaut Lee M. E. Morin, mission specialist, (out of frame), worked in tandem with Ross during this fourth and final scheduled session of EVA for the STS-110 mission. The final major task of the space walk was the installation of a beam, the Airlock Spur, between the Quest Airlock and the S0. The spur will be used by space walkers in the future as a path from the airlock to the truss.

STS-110 mission specialist Lee M.E. Morin carries an affixed 35 mm camera to record work which is being performed on the International Space Station (ISS). Working with astronaut Jerry L. Ross (out of frame), the duo completed the structural attachment of the S0 (s-zero) truss, mating two large tripod legs of the 13 1/2 ton structure to the station's main laboratory during a 7-hour, 30-minute space walk. The STS-110 mission prepared the Station for future space walks by installing and outfitting the 43-foot-long S0 truss and preparing the Mobile Transporter. The S0 Truss was the first of 9 segments that will make up the Station's external framework that will eventually stretch 356 feet (109 meters), or approximately the length of a football field. This central truss segment also includes a flatcar called the Mobile Transporter and rails that will become the first "space railroad," which will allow the Station's robotic arm to travel up and down the finished truss for future assembly and maintenance. The completed truss structure will hold solar arrays and radiators to provide power and cooling for additional international research laboratories from Japan and Europe that will be attached to the Station. Milestones of the S-110 mission included the first time the ISS robotic arm was used to maneuver space walkers around the Station and marked the first time all space walks were based out of the Station's Quest Airlock. It was also the first Shuttle to use three Block II Main Engines. The Space Shuttle Orbiter Atlantis, STS-110 mission, was launched April 8, 2002 and returned to Earth April 19, 2002.

S96-18546 (5 Nov. 1996) --- Following their selection from among 2,400 applicants, the 44 astronaut candidates begin a lengthy period of training and evaluation at NASA's Johnson Space Center as they gather for their group portrait. This year?s class is the largest in the history of space shuttle astronauts and their early program predecessors. Ten pilots and 25 mission specialists make up the internationally diverse class. The international trainees represent the Canadian, Japanese, Italian, French, German and European space agencies. Back row ? from the left, Christer Fuglesang, John Herrington, Steve MacLean, Peggy Whitson, Stephen Frick, Duane Carey, Daniel Tani, Heidemarie Stefanyshyn-Piper, Jeffrey Williams and Donald Pettit. Second to back row ? from the left, Philippe Perrin, Daniel Burbank, Michael Massimino, Lee Morin, Piers Sellers, John Phillips, Richard Mastraccio, Christopher Loria, Paul Lockhart, Charles Hobaugh and William McCool. Second to front row ? from the left, Pedro Duque, Soichi Noguchi, Mamoru Mohri, Gerhard Thiele, Mark Polansky, Sandra Magnus, Paul Richards, Yvonne Cagle, James Kelly, Patrick Forrester and David Brown. Front row ? from the left, Umberto Guidoni, Edward Fincke, Stephanie Wilson, Julie Payette, Lisa Nowak, Fernando Caldeiro, Mark Kelly, Laurel Clark, Rex Walheim, Scott Kelly, Joan Higginbotham and Charles Camarda. Guidoni represents the Italian Space Agency (ASI). Fuglesang and Duque represent the European Space Agency (ESA). Mohri and Noguchi represent the Japanese Space Agency (NASDA). MacLean and Payette are with the Canadian Space Agency. Perrin is associated with the French Space Agency (CNES) and Thiele represents the German Space Agency (DARA). Photo credit: NASA or National Aeronautics and Space Administration