Stennis Space Center Director Gene Goldman (r to l) presents a commemorative photo of a space shuttle main engine test firing to STS-119 Mission Commander Lee Archambault, Pilot Tony Antonelli and Mission Specialists Steve Swanson and Richard Arnold during the crew's May 5 visit to the facility.

JSC2008-E-053107 (21 April 2008) --- Astronaut Richard Arnold, mission specialist

JSC2008-E-053108 (21 April 2008) --- Astronaut Richard Arnold, mission specialist

JSC2008-E-053106 (21 April 2008) --- Astronaut Richard Arnold, mission specialist

HOUSTON, Texas -- JSC2008-E-053106: Astronaut Richard Arnold, mission specialist on mission STS-119.

JSC2008-E-053109 (21 April 2008) --- Astronaut Richard Arnold, mission specialist

JSC2004-E-47576 (17 Aug. 2004) --- Richard R. (Ricky) Arnold II, mission specialist-educator candidate in NASA's 2004 class of astronauts.

S119-E-006177 (16 March 2009) --- Astronaut Richard Arnold, STS-119 mission specialist, takes a moment for a photo while working on the middeck of Space Shuttle Discovery during flight day two activities. A procedures checklist manual floats freely near Arnold.

S119-E-007497 (22 March 2009) --- Astronaut Richard Arnold, STS-119 mission specialist, floats on the middeck of Space Shuttle Discovery while docked with the International Space Station.

S119-E-007495 (22 March 2009) --- Astronaut Richard Arnold, STS-119 mission specialist, floats on the middeck of Space Shuttle Discovery while docked with the International Space Station.

S119-E-006385 (17 March 2009) --- Astronaut Richard Arnold, STS-119 mission specialist, prepares to eat a snack near the galley on the middeck of Space Shuttle Discovery.

S119-E-006951 (21 March 2009) --- Astronaut Richard Arnold, STS-119 mission specialist, looks over a procedures checklist on the aft flight deck of Space Shuttle Discovery while docked with the International Space Station.

S119-E-007491 (22 March 2009) --- Astronaut Richard Arnold, STS-119 mission specialist, floats on the middeck of Space Shuttle Discovery while docked with the International Space Station.

ISS018-E-042690 (23 March 2009) --- Astronaut Richard Arnold, STS-119 mission specialist, is pictured in the Quest Airlock of the International Space Station while Space Shuttle Discovery remains docked with the station.

S119-E-008173 (25 March 2009) --- Astronauts Richard Arnold (left) and Joseph Acaba, both STS-119 mission specialists, are pictured on the middeck of Space Shuttle Discovery during flight day 11 activities.

S119-E-006713 (20 March 2009) --- Astronaut Richard Arnold, STS-119 mission specialist, almost appears to be suspended from the "ceiling" of Discovery's mid deck as he completes a flight day six task.

S119-E-006179 (16 March 2009) --- Astronaut Richard Arnold, STS-119 mission specialist, enjoys a light moment while working on the middeck of Space Shuttle Discovery during flight day two activities.

S119-E-006758 (20 March 2009) --- Astronaut Richard Arnold, STS-119 mission specialist, (pictured on the mid deck), and other members of the Discovery crew, along with the two astronauts and a cosmonaut crew member of ISS-018, are looking forward to supporting the second spacewalk during this linkup. Arnold participated in the first extravehicular activity, March 19, as he joined astronaut Steve Swanson outside the confines of the orbiting complex to perform a variety of tasks.

S119-E-010760 (27 March 2009) --- Astronaut Richard Arnold, mission specialist, appears to be multi-tasking on the flight deck of the Earth-orbiting Space Shuttle Discovery on its final full day in space for STS-119. Arnold shares space with two other astronauts as he records activity with a camera while toting supplies with his other hand. Astronaut John Phillips, mission specialist, is at left.

S119-E-005010 (15 March 2009) --- Astronaut Richard Arnold, STS-119 mission specialist, attired in his shuttle launch and entry suit, gives a “thumbs-up” signal on the aft flight deck of Space Shuttle Discovery during postlaunch activities.

S119-E-006905 (21 March 2009) --- Astronaut Richard Arnold, STS-119 mission specialist, uses a communication system while referring to a procedures checklist on the aft flight deck of Space Shuttle Discovery while docked with the International Space Station.

ISS018-E-042819 (24 March 2009) --- Astronaut Richard Arnold (left), STS-119 mission specialist, and Japan Aerospace Exploration Agency (JAXA) astronaut Koichi Wakata, Expedition 18 flight engineer, pose for a photo in the Quest Airlock of the International Space Station while Space Shuttle Discovery remains docked with the station.

S119-E-006942 (21 March 2009) --- Astronaut Richard Arnold, STS-119 mission specialist, smiles for a photo while working on the aft flight deck of Space Shuttle Discovery while docked with the International Space Station. Astronaut Lee Archambault, commander, is at left.

ISS018-E-042704 (23 March 2009) --- Astronaut Richard Arnold, STS-119 mission specialist, attired in his Extravehicular Mobility Unit (EMU) spacesuit, gives a ?thumbs-up? signal as he prepares for the mission's third scheduled session of extravehicular activity (EVA) in the Quest Airlock of the International Space Station.

S119-E-008479 (25 March 2009) --- Astronauts Joseph Acaba (left) and Richard Arnold (top), both STS-119 mission specialists; along with astronaut Tony Antonelli, pilot, are pictured on the middeck of Space Shuttle Discovery during flight day 11 activities.

S119-E-005004 (15 March 2009) --- Astronaut Richard Arnold, STS-119 mission specialist, attired in his shuttle launch and entry suit, gives a “thumbs-up” signal on the middeck of Space Shuttle Discovery during postlaunch activities.

ISS018-E-041496 (20 March 2009) --- Astronauts John Phillips (foreground) and Richard Arnold, both STS-119 mission specialists, work the controls of the station's robotic Canadarm2 in the Destiny laboratory of the International Space Station while Space Shuttle Discovery remains docked with the station.

S119-E-008375 (25 March 2009) --- Astronauts Richard Arnold (foreground) and Steve Swanson, both STS-119 mission specialists; along with astronaut Lee Archambault (right), commander, look out an overhead window on the aft flight deck of the Space Shuttle Discovery after undocking from the International Space Station.

S119-E-010754 (27 March 2009) --- Astronauts Joseph Acaba, left, and Richard Arnold, mission specialist, go over procedures check lists on the flight deck of the Earth-orbiting Space Shuttle Discovery on the spacecraft's final full day in space for STS-119.

S119-E-006563 (18 March 2009) --- Astronauts Richard Arnold (left) and Joseph Acaba, both STS-119 mission specialists, work with stowage containers in the Columbus laboratory of the International Space Station while Space Shuttle Discovery is docked with the station.

S119-E-008178 (25 March 2009) --- Astronauts Steve Swanson (bottom left), Richard Arnold and Joseph Acaba (right), all STS-119 mission specialists, are pictured on the middeck of Space Shuttle Discovery during flight day 11 activities.

CAPE CANAVERAL, Fla. – Following the simulated launch countdown on Launch Pad 39A at NASA's Kennedy Space Center in Florida, STS-119 Mission Specialists Joseph Acaba (left) and Richard Arnold are seated in a slidewire basket that could propel them to a landing area below. The slidewire basket is used for emergency egress from the pad. In the background at left are Mission Specialists Richard Arnold and Koichi Wakata. The countdown and emergency egress are part of the prelaunch preparation known as Terminal Countdown Demonstration Test. The TCDT also includes equipment familiarization. Discovery is targeted to launch on the STS-119 mission Feb. 12. During the 14-day mission, the crew will install the S6 truss segment and solar arrays to the starboard side of the International Space Station, completing the station's truss, or backbone. Photo credit: NASA/Kim Shiflett

ISS018-E-042523 (23 March 2009) --- Astronaut Richard Arnold, STS-119 mission specialist, participates in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Arnold and Joseph Acaba (out of frame), mission specialist, helped robotic arm operators relocate the Crew Equipment Translation Aid (CETA) cart from the Port 1 to Starboard 1 truss segment, installed a new coupler on the CETA cart, lubricated snares on the "B" end of the space station's robotic arm and performed a few "get ahead" tasks.

S119-E-007105 (23 March 2009) --- Astronaut Richard Arnold, STS-119 mission specialist, participates in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Arnold and Joseph Acaba (out of frame), mission specialist, helped robotic arm operators relocate the Crew Equipment Translation Aid (CETA) cart from the Port 1 to Starboard 1 truss segment, installed a new coupler on the CETA cart, lubricated snares on the "B" end of the space station's robotic arm and performed a few "get ahead" tasks.

S119-E-007274 (23 March 2009) --- Astronauts Richard Arnold (bottom) and Joseph Acaba, both STS-119 mission specialists, participate in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Arnold and Acaba helped robotic arm operators relocate the Crew Equipment Translation Aid (CETA) cart from the Port 1 to Starboard 1 truss segment, installed a new coupler on the CETA cart, lubricated snares on the "B" end of the space station's robotic arm and performed a few "get ahead" tasks.

S119-E-006673 (19 March 2009) --- Astronauts Steve Swanson (center) and Richard Arnold (partially obscured above Swanson), both STS-119 mission specialists, participate in the mission's first scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, seven-minute spacewalk, Swanson and Arnold connected bolts to permanently attach the S6 truss segment to S5. The spacewalkers plugged in power and data connectors to the truss, prepared a radiator to cool it, opened boxes containing the new solar arrays and deployed the Beta Gimbal Assemblies containing masts that support the solar arrays.

S119-E-007298 (23 March 2009) --- Astronauts Richard Arnold (left) and Joseph Acaba, both STS-119 mission specialists, participate in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Arnold and Acaba helped robotic arm operators relocate the Crew Equipment Translation Aid (CETA) cart from the Port 1 to Starboard 1 truss segment, installed a new coupler on the CETA cart, lubricated snares on the "B" end of the space station's robotic arm and performed a few "get ahead" tasks.

S119-E-007243 (23 March 2009) --- Astronaut Richard Arnold, STS-119 mission specialist, participates in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Arnold and Joseph Acaba (out of frame), mission specialist, helped robotic arm operators relocate the Crew Equipment Translation Aid (CETA) cart from the Port 1 to Starboard 1 truss segment, installed a new coupler on the CETA cart, lubricated snares on the "B" end of the space station's robotic arm and performed a few "get ahead" tasks.

S119-E-007266 (23 March 2009) --- Astronauts Richard Arnold (bottom) and Joseph Acaba, both STS-119 mission specialists, participate in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Arnold and Acaba helped robotic arm operators relocate the Crew Equipment Translation Aid (CETA) cart from the Port 1 to Starboard 1 truss segment, installed a new coupler on the CETA cart, lubricated snares on the "B" end of the space station's robotic arm and performed a few "get ahead" tasks.

S119-E-007270 (23 March 2009) --- Astronauts Richard Arnold (bottom) and Joseph Acaba, both STS-119 mission specialists, participate in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Arnold and Acaba helped robotic arm operators relocate the Crew Equipment Translation Aid (CETA) cart from the Port 1 to Starboard 1 truss segment, installed a new coupler on the CETA cart, lubricated snares on the "B" end of the space station's robotic arm and performed a few "get ahead" tasks.

S119-E-007469 (23 March 2009) --- Astronaut Richard Arnold, STS-119 mission specialist, participates in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Arnold and Joseph Acaba (out of frame), mission specialist, helped robotic arm operators relocate the Crew Equipment Translation Aid (CETA) cart from the Port 1 to Starboard 1 truss segment, installed a new coupler on the CETA cart, lubricated snares on the "B" end of the space station's robotic arm and performed a few "get ahead" tasks.

S119-E-007278 (23 March 2009) --- Astronauts Richard Arnold (right) and Joseph Acaba, both STS-119 mission specialists, participate in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Arnold and Acaba helped robotic arm operators relocate the Crew Equipment Translation Aid (CETA) cart from the Port 1 to Starboard 1 truss segment, installed a new coupler on the CETA cart, lubricated snares on the "B" end of the space station's robotic arm and performed a few "get ahead" tasks.

S119-E-007332 (23 March 2009) --- Astronauts Richard Arnold (right) and Joseph Acaba, both STS-119 mission specialists, participate in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Arnold and Acaba helped robotic arm operators relocate the Crew Equipment Translation Aid (CETA) cart from the Port 1 to Starboard 1 truss segment, installed a new coupler on the CETA cart, lubricated snares on the "B" end of the space station's robotic arm and performed a few "get ahead" tasks.

ISS018-E-041089 (19 March 2009) --- Astronaut Richard Arnold, STS-119 mission specialist, participates in the mission's first scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, seven-minute spacewalk, Arnold and astronaut Steve Swanson (out of frame), mission specialist, connected bolts to permanently attach the S6 truss segment to S5. The spacewalkers plugged in power and data connectors to the truss, prepared a radiator to cool it, opened boxes containing the new solar arrays and deployed the Beta Gimbal Assemblies containing masts that support the solar arrays.

CAPE CANAVERAL, Fla. – In the Operations and Checkout Building at NASA's Kennedy Space Center in Florida, STS-119 Mission Specialist Richard Arnold signals he is ready for launch during the final fitting of his launch and entry suit. Arnold is making his first shuttle flight. The 14-day mission is the 28th to the International Space Station and the 125th space shuttle flight. Discovery will deliver the final pair of power-generating solar array wings and the S6 truss segment. Installation of S6 will signal the station's readiness to house a six-member crew for conducting increased science. Liftoff of Discovery is scheduled for 9:20 p.m. EDT on March 11. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. -- In the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, STS-119 Mission Specialist Richard Arnold points to equipment that is part of the payload on the mission. Arnold and other crew members are at Kennedy for a Crew Equipment Interface Test that provides experience handling tools, equipment and hardware they will use on the mission. On the STS-119 mission, space shuttle Discovery will carry the S6 truss segment to complete the 361-foot-long backbone of the International Space Station. The truss includes the fourth pair of solar array wings and electronics that convert sunlight to power for the orbiting laboratory. Discovery is targeted for launch on Feb. 12, 2009. Photo credit: NASA/Kim Shiflett

S119-E-007257 (23 March 2009) --- Astronaut Richard Arnold, STS-119 mission specialist, participates in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Arnold and Joseph Acaba (out of frame), mission specialist, helped robotic arm operators relocate the Crew Equipment Translation Aid (CETA) cart from the Port 1 to Starboard 1 truss segment, installed a new coupler on the CETA cart, lubricated snares on the "B" end of the space station's robotic arm and performed a few "get ahead" tasks.

S119-E-007259 (23 March 2009) --- Astronauts Richard Arnold (left) and Joseph Acaba, both STS-119 mission specialists, participate in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Arnold and Acaba helped robotic arm operators relocate the Crew Equipment Translation Aid (CETA) cart from the Port 1 to Starboard 1 truss segment, installed a new coupler on the CETA cart, lubricated snares on the "B" end of the space station's robotic arm and performed a few "get ahead" tasks.

S119-E-007311 (23 March 2009) --- Astronauts Richard Arnold (bottom) and Joseph Acaba, both STS-119 mission specialists, participate in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Arnold and Acaba helped robotic arm operators relocate the Crew Equipment Translation Aid (CETA) cart from the Port 1 to Starboard 1 truss segment, installed a new coupler on the CETA cart, lubricated snares on the "B" end of the space station's robotic arm and performed a few "get ahead" tasks.

S119-E-007312 (23 March 2009) --- Astronauts Richard Arnold (bottom) and Joseph Acaba, both STS-119 mission specialists, participate in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Arnold and Acaba helped robotic arm operators relocate the Crew Equipment Translation Aid (CETA) cart from the Port 1 to Starboard 1 truss segment, installed a new coupler on the CETA cart, lubricated snares on the "B" end of the space station's robotic arm and performed a few "get ahead" tasks.

S119-E-007398 (23 March 2009) --- Astronaut Richard Arnold, STS-119 mission specialist, participates in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Arnold and Joseph Acaba (out of frame), mission specialist, helped robotic arm operators relocate the Crew Equipment Translation Aid (CETA) cart from the Port 1 to Starboard 1 truss segment, installed a new coupler on the CETA cart, lubricated snares on the "B" end of the space station's robotic arm and performed a few "get ahead" tasks.

ISS018-E-042546 (23 March 2009) --- Astronaut Richard Arnold, STS-119 mission specialist, participates in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Arnold and Joseph Acaba (out of frame), mission specialist, helped robotic arm operators relocate the Crew Equipment Translation Aid (CETA) cart from the Port 1 to Starboard 1 truss segment, installed a new coupler on the CETA cart, lubricated snares on the "B" end of the space station's robotic arm and performed a few "get ahead" tasks.

S119-E-007323 (23 March 2009) --- Astronauts Richard Arnold (right) and Joseph Acaba, both STS-119 mission specialists, participate in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Arnold and Acaba helped robotic arm operators relocate the Crew Equipment Translation Aid (CETA) cart from the Port 1 to Starboard 1 truss segment, installed a new coupler on the CETA cart, lubricated snares on the "B" end of the space station's robotic arm and performed a few "get ahead" tasks.

ISS018-E-041104 (19 March 2009) --- Astronaut Richard Arnold, STS-119 mission specialist, participates in the mission's first scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, seven-minute spacewalk, Arnold and astronaut Steve Swanson (out of frame), mission specialist, connected bolts to permanently attach the S6 truss segment to S5. The spacewalkers plugged in power and data connectors to the truss, prepared a radiator to cool it, opened boxes containing the new solar arrays and deployed the Beta Gimbal Assemblies containing masts that support the solar arrays. The blackness of space and Earth?s horizon provide the backdrop for the scene.

S119-E-007302 (23 March 2009) --- Astronauts Richard Arnold (left) and Joseph Acaba, both STS-119 mission specialists, participate in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Arnold and Acaba helped robotic arm operators relocate the Crew Equipment Translation Aid (CETA) cart from the Port 1 to Starboard 1 truss segment, installed a new coupler on the CETA cart, lubricated snares on the "B" end of the space station's robotic arm and performed a few "get ahead" tasks.

S119-E-007237 (23 March 2009) --- Astronaut Richard Arnold, STS-119 mission specialist, participates in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Arnold and Joseph Acaba (out of frame), mission specialist, helped robotic arm operators relocate the Crew Equipment Translation Aid (CETA) cart from the Port 1 to Starboard 1 truss segment, installed a new coupler on the CETA cart, lubricated snares on the "B" end of the space station's robotic arm and performed a few "get ahead" tasks.

CAPE CANAVERAL, Fla. – In the Operations and Checkout Building at NASA's Kennedy Space Center in Florida, STS-119 Mission Specialist Richard Arnold gets help from a suit technician in the final fitting of his launch and entry suit. Arnold will be making his first shuttle flight. The 14-day mission is the 28th to the International Space Station and the 125th space shuttle flight. Discovery will deliver the final pair of power-generating solar array wings and the S6 truss segment. Installation of S6 will signal the station's readiness to house a six-member crew for conducting increased science. Liftoff of Discovery is scheduled for 9:20 p.m. EDT on March 11. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – In the White Room on Launch Pad 39A at NASA's Kennedy Space Center in Florida, STS-119 Mission Specialist Richard Arnold is helped by the Closeout Crew to put on his harness. The White Room provides access into space shuttle Discovery. Behind Arnold is Pilot Tony Antonelli. Arnold, Antonelli and other crew members will conduct a simulated launch countdown as part of the prelaunch preparation known as Terminal Countdown Demonstration Test. The TCDT also includes equipment familiarization and emergency egress training. Discovery is targeted to launch on the STS-119 mission Feb. 12. During the 14-day mission, the crew will install the S6 truss segment and solar arrays to the starboard side of the International Space Station, completing the station's truss, or backbone. Photo credit: NASA/Jim Grossmann

ISS018-E-041237 (19 March 2009) --- Astronaut Richard Arnold, STS-119 mission specialist, attired in his Extravehicular Mobility Unit (EMU) spacesuit, and astronaut Lee Archambault, STS-119 commander, shake hands in the Quest Airlock of the International Space Station as the mission's first scheduled session of extravehicular activity (EVA) draws to a close. Astronaut Michael Fincke, Expedition 18 commander, is visible at top.

S119-E-006981 (22 March 2009) --- Astronauts Joseph Acaba (left) and Steve Swanson, both STS-119 mission specialists, work in the Quest Airlock of the International Space Station while Space Shuttle Discovery is docked with the station. Astronaut Richard Arnold (center background), mission specialist, photographs Japan Aerospace Exploration Agency (JAXA) astronaut Koichi Wakata (far background), Expedition 18 flight engineer, exercising in the Unity node.

S119-E-007763 (24 March 2009) --- STS-119 crewmembers pose for a group photo following a joint news conference in the Harmony node of the International Space Station while Space Shuttle Discovery remains docked with the station. From the left (bottom row) are NASA astronauts Tony Antonelli, pilot; Lee Archambault, commander; and Joseph Acaba, mission specialist. From the left (top row) are astronauts Steve Swanson, Richard Arnold and John Phillips, all mission specialists.

ISS018-E-041214 (19 March 2009) --- Astronauts Steve Swanson (right) and Richard Arnold, both STS-119 mission specialists, attired in their Extravehicular Mobility Unit (EMU) spacesuits, are pictured in the Quest Airlock of the International Space Station as the mission's first scheduled session of extravehicular activity (EVA) draws to a close. Astronauts Michael Fincke (partially out of frame), Expedition 18 commander; and Tony Antonelli, STS-119 pilot, assist with the doffing of the spacesuits.

ISS018-E-042724 (23 March 2009) --- Astronaut Richard Arnold, STS-119 mission specialist, attired in his Extravehicular Mobility Unit (EMU) spacesuit, is pictured in the Quest Airlock of the International Space Station as he prepares for the mission's third scheduled session of extravehicular activity (EVA). Japan Aerospace Exploration Agency (JAXA) astronaut Koichi Wakata, Expedition 18 flight engineer, is visible at bottom right.

CAPE CANAVERAL, Fla. – On the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida, STS-119 Mission Specialist Richard Arnold is greeted by Shuttle Launch Director Mike Leinbach. Next to Leinbach is Jerry Ross, chief of the Vehicle Integration Test Office. The crew flew to Kennedy to take part in terminal countdown demonstration test activities, which include equipment familiarization and emergency exit training and culminate in a simulated launch countdown. Photo credit: NASA/Kim Shiflett

JSC2008-E-052124 (16 July 2008) --- Attired in training versions of their shuttle launch and entry suits, the STS-119 crewmembers await the start of a training session in the Space Vehicle Mockup Facility at Johnson Space Center. From the left are Japan Aerospace Exploration Agency astronaut Koichi Wakata, Expedition 18 flight engineer; NASA astronauts Tony Antonelli, STS-119 pilot; Lee Archambault, commander; John Phillips, Joseph Acaba, Richard Arnold and Steve Swanson, all mission specialists.

S119-E-007770 (24 March 2009) --- STS-119 crewmembers pose for a group photo following a joint news conference in the Harmony node of the International Space Station while Space Shuttle Discovery remains docked with the station. From the left (bottom row) are NASA astronauts Tony Antonelli, pilot; Lee Archambault, commander; and Joseph Acaba, mission specialist. From the left (top row) are astronauts Steve Swanson, Richard Arnold and John Phillips, all mission specialists.

ISS018-E-041208 (19 March 2009) --- Astronauts Steve Swanson (right) and Richard Arnold, both STS-119 mission specialists, attired in their Extravehicular Mobility Unit (EMU) spacesuits, are pictured in the Quest Airlock of the International Space Station as the mission's first scheduled session of extravehicular activity (EVA) draws to a close. Astronauts Michael Fincke (center background), Expedition 18 commander; and Tony Antonelli, STS-119 pilot, assist with the doffing of the spacesuits.

S119-E-007529 (23 March 2009) --- NASA astronauts Joseph Acaba (bottom) and Richard Arnold (top), both STS-119 mission specialists; along with cosmonaut Yury Lonchakov, Expedition 18 flight engineer, share a meal in the Zvezda Service Module of the International Space Station while Space Shuttle Discovery remains docked with the station.

ISS018-E-042717 (23 March 2009) --- Astronaut Richard Arnold, STS-119 mission specialist, attired in his Extravehicular Mobility Unit (EMU) spacesuit, shakes hands with astronaut Michael Fincke, Expedition 18 commander, in the Quest Airlock of the International Space Station as he prepares for the mission's third scheduled session of extravehicular activity (EVA).

ISS018-E-041492 (20 March 2009) --- Crewmembers on the International Space Station are busy with various tasks in the Destiny laboratory while Space Shuttle Discovery remains docked with the station. Pictured are astronauts Lee Archambault (foreground), STS-119 commander; John Phillips (center) and Richard Arnold, both STS-119 mission specialists; along with astronaut Michael Fincke (background), Expedition 18 commander; and Japan Aerospace Exploration Agency?s (JAXA) Koichi Wakata (top right), Expedition 18 flight engineer.

S119-E-007775 (24 March 2009) --- STS-119 crewmembers pose for a group photo following a joint news conference in the Harmony node of the International Space Station while Space Shuttle Discovery remains docked with the station. From the left (bottom row) are NASA astronauts Tony Antonelli, pilot; Lee Archambault, commander; and Joseph Acaba, mission specialist. From the left (top row) are astronauts Steve Swanson, Richard Arnold and John Phillips, all mission specialists.

ISS018-E-041080 (19 March 2009) --- Astronauts Steve Swanson (right) and Richard Arnold, both STS-119 mission specialists, attired in their Extravehicular Mobility Unit (EMU) spacesuits, are pictured in the Quest Airlock of the International Space Station as the mission's first scheduled session of extravehicular activity (EVA) draws to a close. Astronaut Tony Antonelli, pilot, assists with the doffing of the spacesuits.

S119-E-010717 (27 March 2009) --- Astronauts Richard Arnold (left) and John Phillips, look over a printout of data, as they float relatively freely on the middeck of the Earth-orbiting Space Shuttle Discovery. The two STS-119 mission specialists and five other astronauts are in the midst of their final full day in space before their scheduled return home on March 28.

ISS018-E-041243 (19 March 2009) --- Astronauts Steve Swanson (right) and Richard Arnold, both STS-119 mission specialists, attired in their Extravehicular Mobility Unit (EMU) spacesuits, are pictured in the Quest Airlock of the International Space Station as the mission's first scheduled session of extravehicular activity (EVA) draws to a close. Astronauts Michael Fincke (top center), Expedition 18 commander; and Tony Antonelli, STS-119 pilot, assist with the doffing of the spacesuits.

CAPE CANAVERAL, Fla. – In the White Room on Launch Pad 39A at NASA's Kennedy Space Center in Florida, STS-119 Mission Specialist Richard Arnold (foreground) is helped by the Closeout Crew to put on his harness. Arnold will join Pilot Tony Antonelli (background right) and other crew members to enter space shuttle Discovery to conduct a simulated launch countdown. The astronauts are at Kennedy to prepare for launch through Terminal Countdown Demonstration Test activities. The TCDT includes equipment familiarization and emergency egress training. Discovery is targeted to launch on the STS-119 mission Feb. 12. During the 14-day mission, the crew will install the S6 truss segment and solar arrays to the starboard side of the International Space Station, completing the station's truss, or backbone. Photo credit: NASA/Sandra Joseph, Kevin O'Connell, Tom Farrar

S119-E-007519 (23 March 2009) --- Astronaut Richard Arnold (lower left on port truss), STS-119 mission specialist, participates in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Arnold and Joseph Acaba (out of frame), mission specialist, helped robotic arm operators relocate the Crew Equipment Translation Aid (CETA) cart from the Port 1 to Starboard 1 truss segment, installed a new coupler on the CETA cart, lubricated snares on the "B" end of the space station's robotic arm and performed a few "get ahead" tasks. The Japanese Kibo laboratory is visible at right, and the station’s Canadarm2 is at left. The blackness of space and Earth’s horizon provide the backdrop for the scene.

CAPE CANAVERAL, Fla. – In the White Room on Launch Pad 39A at NASA's Kennedy Space Center in Florida, STS-119 Mission Specialist Richard Arnold gets ready to enter space shuttle Discovery, behind him. The White Room provides access into Discovery. Arnold and other crew members will conduct a simulated launch countdown as part of the prelaunch preparation known as Terminal Countdown Demonstration Test. The TCDT also includes equipment familiarization and emergency egress training. Discovery is targeted to launch on the STS-119 mission Feb. 12. During the 14-day mission, the crew will install the S6 truss segment and solar arrays to the starboard side of the International Space Station, completing the station's truss, or backbone. Photo credit: NASA/Jim Grossmann

ISS018-E-041098 (19 March 2009) --- Astronaut Steve Swanson, STS-119 mission specialist, participates in the mission's first scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, seven-minute spacewalk, Swanson and astronaut Richard Arnold (out of frame), mission specialist, connected bolts to permanently attach the S6 truss segment to S5. The spacewalkers plugged in power and data connectors to the truss, prepared a radiator to cool it, opened boxes containing the new solar arrays and deployed the Beta Gimbal Assemblies containing masts that support the solar arrays.

CAPE CANAVERAL, Fla. – After arriving at NASA's Kennedy Space Center in Florida on a T-38 jet training aircraft, STS-119 Pilot Tony Antonelli is greeted by Shuttle Launch Director Mike Leinbach (right). Next to Leinbach is Jerry Ross, chief of the Vehicle Integration Test Office. Behind Antonelli is Mission Specialist Richard Arnold. The crew flew to Kennedy to take part in terminal countdown demonstration test activities, which include equipment familiarization and emergency exit training and culminate in a simulated launch countdown. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. -- In the Orbiter Processing Facility at NASA's Kennedy Space Center in Florida, STS-119 Mission Specialist Richard Arnold practices with the camera to be used on the mission. The crew is at Kennedy for a Crew Equipment Interface Test that provides experience handling tools, equipment and hardware they will use on the mission. On the STS-119 mission, space shuttle Discovery will carry the S6 truss segment to complete the 361-foot-long backbone of the International Space Station. The truss includes the fourth pair of solar array wings and electronics that convert sunlight to power for the orbiting laboratory. Discovery is targeted for launch on Feb. 12, 2009. Photo credit: NASA/Kim Shiflett

S119-E-006674 (19 March 2009) --- Astronaut Steve Swanson (center), STS-119 mission specialist, participates in the mission's first scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, seven-minute spacewalk, Swanson and astronaut Richard Arnold (out of frame), mission specialist, connected bolts to permanently attach the S6 truss segment to S5. The spacewalkers plugged in power and data connectors to the truss, prepared a radiator to cool it, opened boxes containing the new solar arrays and deployed the Beta Gimbal Assemblies containing masts that support the solar arrays.

S119-E-007129 (23 March 2009) --- Astronaut Joseph Acaba, STS-119 mission specialist, participates in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Acaba and Richard Arnold (out of frame), mission specialist, helped robotic arm operators relocate the Crew Equipment Translation Aid (CETA) cart from the Port 1 to Starboard 1 truss segment, installed a new coupler on the CETA cart, lubricated snares on the "B" end of the space station's robotic arm and performed a few "get ahead" tasks.

CAPE CANAVERAL, Fla. – In the Space Station Processing Facility at NASA's Kennedy Space Center, STS-119 Mission Specialists Joseph Acaba, left, and Richard Arnold inspect hardware slated to fly on their upcoming space shuttle mission. On the STS-119 mission, space shuttle Discovery will carry the S6 truss segment to complete the 361-foot-long backbone of the International Space Station. The truss includes the fourth pair of solar array wings and electronics that convert sunlight to power for the orbiting laboratory. Launch is targeted for Feb. 12, 2009. Photo credit: NASA/Kim Shiflett

ISS018-E-041084 (19 March 2009) --- Astronaut Steve Swanson, STS-119 mission specialist, participates in the mission's first scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, seven-minute spacewalk, Swanson and astronaut Richard Arnold (out of frame), mission specialist, connected bolts to permanently attach the S6 truss segment to S5. The spacewalkers plugged in power and data connectors to the truss, prepared a radiator to cool it, opened boxes containing the new solar arrays and deployed the Beta Gimbal Assemblies containing masts that support the solar arrays.

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, STS-119 Mission Specialist Richard Arnold is fitted with the helmet for his launch-and-entry suit before heading to Launch Pad 39A for a simulated launch countdown. The astronauts are at Kennedy to prepare for launch through Terminal Countdown Demonstration Test activities. The TCDT includes equipment familiarization and emergency egress training. The crew is targeted to launch on the STS-119 mission Feb. 12 on space shuttle Discovery. During the 14-day mission, the crew will install the S6 truss segment and solar arrays to the starboard side of the International Space Station, completing the station's truss, or backbone. Photo credit: NASA/Kim Shiflett

S119-E-007137 (23 March 2009) --- Astronaut Joseph Acaba, STS-119 mission specialist, participates in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Acaba and Richard Arnold (out of frame), mission specialist, helped robotic arm operators relocate the Crew Equipment Translation Aid (CETA) cart from the Port 1 to Starboard 1 truss segment, installed a new coupler on the CETA cart, lubricated snares on the "B" end of the space station's robotic arm and performed a few "get ahead" tasks.

ISS018-E-042502 (23 March 2009) --- Astronaut Joseph Acaba, STS-119 mission specialist, participates in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Acaba and Richard Arnold (out of frame), mission specialist, helped robotic arm operators relocate the Crew Equipment Translation Aid (CETA) cart from the Port 1 to Starboard 1 truss segment, installed a new coupler on the CETA cart, lubricated snares on the "B" end of the space station's robotic arm and performed a few "get ahead" tasks.

ISS018-E-042538 (23 March 2009) --- Astronaut Joseph Acaba, STS-119 mission specialist, participates in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Acaba and Richard Arnold (out of frame), mission specialist, helped robotic arm operators relocate the Crew Equipment Translation Aid (CETA) cart from the Port 1 to Starboard 1 truss segment, installed a new coupler on the CETA cart, lubricated snares on the "B" end of the space station's robotic arm and performed a few "get ahead" tasks.

S119-E-007134 (23 March 2009) --- Astronaut Joseph Acaba, STS-119 mission specialist, participates in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Acaba and Richard Arnold (out of frame), mission specialist, helped robotic arm operators relocate the Crew Equipment Translation Aid (CETA) cart from the Port 1 to Starboard 1 truss segment, installed a new coupler on the CETA cart, lubricated snares on the "B" end of the space station's robotic arm and performed a few "get ahead" tasks.

S119-E-007154 (23 March 2009) --- Astronaut Joseph Acaba, STS-119 mission specialist, participates in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Acaba and Richard Arnold (out of frame), mission specialist, helped robotic arm operators relocate the Crew Equipment Translation Aid (CETA) cart from the Port 1 to Starboard 1 truss segment, installed a new coupler on the CETA cart, lubricated snares on the "B" end of the space station's robotic arm and performed a few "get ahead" tasks.

CAPE CANAVERAL, Fla. – Astronaut Richard Arnold, a mission specialist for space shuttle Discovery's STS-119 mission, arrives at NASA's Kennedy Space Center in Florida to prepare for launch. STS-119 is the 125th space shuttle flight and the 28th flight to the International Space Station. Discovery and its crew will deliver the final set of large power-generating solar array wings and integrated truss structure, S6, to the space station. The mission includes four spacewalks. Launch is scheduled for March 11 at 9:20 p.m. EDT. Photo credit: NASA/Kim Shiflett

S119-E-006432 (17 March 2009) --- Japan Aerospace Exploration Agency (JAXA) astronaut Koichi Wakata (foreground), STS-119 mission specialist; NASA astronauts Lee Archambault, commander; Steve Swanson and Joseph Acaba, both mission specialists, enter the Harmony node shortly after Space Shuttle Discovery and the International Space Station docked in space and the hatches were opened on March 17, 2009. STS-119 crewmembers not pictured are astronauts Tony Antonelli, pilot; Richard Arnold and John Phillips, both mission specialists.

CAPE CANAVERAL, Fla. - In the Space Station Processing Facility at NASA's Kennedy Space Center, STS-119 Mission Specialist Richard Arnold, assisted by Mission Specialist Joseph Acaba at right, gets some hands-on training with hardware slated to fly on his upcoming space shuttle mission. Mission Specialist Steve Swanson observes at left. On the STS-119 mission, space shuttle Discovery will carry the S6 truss segment to complete the 361-foot-long backbone of the International Space Station. The truss includes the fourth pair of solar array wings and electronics that convert sunlight to power for the orbiting laboratory. Launch is targeted for Feb. 12, 2009. Photo credit: NASA/Kim Shiflett

S119-E-006675 (19 March 2009) --- Astronaut Steve Swanson (center right), STS-119 mission specialist, participates in the mission's first scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, seven-minute spacewalk, Swanson and astronaut Richard Arnold (out of frame), mission specialist, connected bolts to permanently attach the S6 truss segment to S5. The spacewalkers plugged in power and data connectors to the truss, prepared a radiator to cool it, opened boxes containing the new solar arrays and deployed the Beta Gimbal Assemblies containing masts that support the solar arrays.

CAPE CANAVERAL, Fla. – In the Space Station Processing Facility at NASA's Kennedy Space Center, from left, STS-119 Mission Specialists Steve Swanson, Richard Arnold and Joseph Acaba inspect hardware slated to fly on their upcoming space shuttle mission. On the STS-119 mission, space shuttle Discovery will carry the S6 truss segment to complete the 361-foot-long backbone of the International Space Station. The truss includes the fourth pair of solar array wings and electronics that convert sunlight to power for the orbiting laboratory. Launch is targeted for Feb. 12, 2009. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – In the Space Station Processing Facility at NASA's Kennedy Space Center, from left, STS-119 Mission Specialist Richard Arnold, Commander Lee Archambault, and Mission Specialists John Phillips and Steve Swanson familiarize themselves with hardware slated to fly on their upcoming space shuttle mission. On the STS-119 mission, space shuttle Discovery will carry the S6 truss segment to complete the 361-foot-long backbone of the International Space Station. The truss includes the fourth pair of solar array wings and electronics that convert sunlight to power for the orbiting laboratory. Launch is targeted for Feb. 12, 2009. Photo credit: NASA/Kim Shiflett

S119-E-007128 (23 March 2009) --- Astronaut Joseph Acaba, STS-119 mission specialist, participates in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Acaba and Richard Arnold (out of frame), mission specialist, helped robotic arm operators relocate the Crew Equipment Translation Aid (CETA) cart from the Port 1 to Starboard 1 truss segment, installed a new coupler on the CETA cart, lubricated snares on the "B" end of the space station's robotic arm and performed a few "get ahead" tasks.

HOUSTON, Texas -- STS119-S-002: Attired in training versions of their shuttle launch and entry suits, these seven astronauts take a break from training to pose for the STS-119 crew portrait. From the right (front row) are NASA astronauts Lee Archambault, commander, and Tony Antonelli, pilot. From the left (back row) are NASA astronauts Joseph Acaba, John Phillips, Steve Swanson, Richard Arnold and Japan Aerospace Exploration Agency astronaut Koichi Wakata, all mission specialists. Wakata is scheduled to join Expedition 18 as flight engineer after launching to the International Space Station on STS-119.

S119-E-007165 (23 March 2009) --- Astronaut Joseph Acaba, STS-119 mission specialist, participates in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Acaba and Richard Arnold (out of frame), mission specialist, helped robotic arm operators relocate the Crew Equipment Translation Aid (CETA) cart from the Port 1 to Starboard 1 truss segment, installed a new coupler on the CETA cart, lubricated snares on the "B" end of the space station's robotic arm and performed a few "get ahead" tasks.

CAPE CANAVERAL, Fla. -- In the Orbiter Processing Facility at NASA's Kennedy Space Center in Florida, STS-119 Mission Specialist Richard Arnold practices using the camera to be used on the mission. The crew is at Kennedy for a Crew Equipment Interface Test that provides experience handling tools, equipment and hardware they will use on the mission. On the STS-119 mission, space shuttle Discovery will carry the S6 truss segment to complete the 361-foot-long backbone of the International Space Station. The truss includes the fourth pair of solar array wings and electronics that convert sunlight to power for the orbiting laboratory. Discovery is targeted for launch on Feb. 12, 2009. Photo credit: NASA/Kim Shiflett