ASTRONAUT RICK MASTRACCHIO WITH LSU HUMAN EXPLORATION ROVER CHALLENGE TEAM (WINNER ROOKIE AWARD) IN ROTUNDA OF LOUISIANA STATE CAPITOL BUILDING

ISS038-E-008293 (25 Nov. 2013) --- NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, uses a body mass measurement device (BMMD) in the Zvezda Service Module of the International Space Station.

ISS039-E-003797 (15 March 2014) --- Expedition 39 flight engineer Rick Mastracchio poses for a self-portrait with Robonaut 2 in the U.S. Laboratory (Destiny) during a televised public event. (Note: The event was shown live on March 14 in U.S. time zones).

ISS038-E-043011 (6 Feb. 2014) --- NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, is pictured near fresh fruit floating freely in the Unity node of the International Space Station. The fruit was brought to the station on the ISS Progress 54 cargo spacecraft, which docked Feb. 5, 2014.

ISS038-E-043027 (6 Feb. 2014) --- NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, prepares to eat a fresh orange in the Unity node of the International Space Station. The fruit was brought to the station on the ISS Progress 54 cargo spacecraft, which docked Feb. 5, 2014.

ISS038-E-043015 (6 Feb. 2014) --- NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, prepares to eat a fresh orange in the Unity node of the International Space Station. The fruit was brought to the station on the ISS Progress 54 cargo spacecraft, which docked Feb. 5, 2014.

ISS038-E-013710 (9 Dec. 2013) --- In the International Space Station's Destiny laboratory, NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, prepares Robonaut 2 for an upcoming ground-commanded firmware update that will support the installation of a pair of legs for the humanoid robot. R2 was designed to test out the capability of a robot to perform tasks deemed too dangerous or mundane for astronauts. Robonaut's legs are scheduled to arrive to the station aboard the SpaceX-3 commercial cargo mission in February 2014.

ISS038-E-013714 (9 Dec. 2013) --- In the International Space Station's Destiny laboratory, NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, prepares Robonaut 2 for an upcoming ground-commanded firmware update that will support the installation of a pair of legs for the humanoid robot. R2 was designed to test out the capability of a robot to perform tasks deemed too dangerous or mundane for astronauts. Robonaut's legs are scheduled to arrive to the station aboard the SpaceX-3 commercial cargo mission in February 2014.

ISS038-E-031405 (15 Jan. 2014) --- In the International Space Station's Kibo laboratory, Russian cosmonaut Oleg Kotov (left), Expedition 38 commander; and NASA astronaut Rick Mastracchio, flight engineer, conduct a session with a pair of bowling-ball-sized free-flying satellites known as Synchronized Position Hold, Engage, Reorient, Experimental Satellites, or SPHERES. The experiment uses student written algorithms that operate the small satellites to demonstrate critical mission tasks such as formation flying and vehicle dockings.

ISS038-E-013712 (9 Dec. 2013) --- In the International Space Station's Destiny laboratory, NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, prepares Robonaut 2 for an upcoming ground-commanded firmware update that will support the installation of a pair of legs for the humanoid robot. R2 was designed to test out the capability of a robot to perform tasks deemed too dangerous or mundane for astronauts. Robonaut's legs are scheduled to arrive to the station aboard the SpaceX-3 commercial cargo mission in February 2014.

ISS038-E-031405 (15 Jan. 2014) --- In the International Space Station's Kibo laboratory, Russian cosmonaut Oleg Kotov (left), Expedition 38 commander; and NASA astronaut Rick Mastracchio, flight engineer, conduct a session with a pair of bowling-ball-sized free-flying satellites known as Synchronized Position Hold, Engage, Reorient, Experimental Satellites, or SPHERES. The experiment uses student written algorithms that operate the small satellites to demonstrate critical mission tasks such as formation flying and vehicle dockings.

ISS038-E-006765 (21 Nov. 2013) --- In the International Space Station's Destiny laboratory, NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, prepares to replace a dewar tray in the Minus Eighty Laboratory Freezer for ISS (MELFI) after inserting biological samples into the trays.

ISS038-E-006757 (21 Nov. 2013) --- In the International Space Station's Destiny laboratory, NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, removes a dewar tray from the Minus Eighty Laboratory Freezer for ISS (MELFI) in order to insert biological samples into the trays.

ISS038-E-008037 (25 Nov. 2013) --- NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, works with Biolab hardware in the Columbus laboratory of the International Space Station. Biolab is used to perform space biology experiments on microorganisms, cells, tissue cultures, plants and small invertebrates.

ISS038-E-044829 (10 Feb. 2014) --- NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, prepares to use an ultraviolet light to decontaminate hardware used for life science experiments inside the Microgravity Science Glovebox (MSG) in the Destiny laboratory of the International Space Station.

ISS038-E-008033 (25 Nov. 2013) --- NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, works with Biolab hardware in the Columbus laboratory of the International Space Station. Biolab is used to perform space biology experiments on microorganisms, cells, tissue cultures, plants and small invertebrates.

ISS038-E-031407 (16 Jan. 2014) --- NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, accesses the Commercial Generic Bioprocessing Apparatus-2 (CGBA-2) while working with the Vaccine-21 Group Activation Pack (GAP) experiment in the Harmony node of the International Space Station. This experiment also referred to as Antibiotic Effectiveness in Space-1 (AES-1) tests the hypothesis that antibiotics used to treat bacterial grown in space will exhibit reduced efficacy and will be associated with specific changes in bacterial gene expression that correlate with cell survival.

INTERNATIONAL SPACE STATION ASTRONAUTS RICK MASTRACCHIO, LEFT, AND MICHAEL HOPKINS DISCUSS THEIR WORK ON THE SPACE STATION DURING EXPEDITIONS 37, 38, AND 39 AT A NEWS CONFERENCE AT NASA'S MARSHALL SPACE FLIGHT CENTER ON JULY 29

INTERNATIONAL SPACE STATION ASTRONAUTS RICK MASTRACCHIO, LEFT, AND MICHAEL HOPKINS DISCUSS THEIR WORK ON THE SPACE STATION DURING EXPEDITIONS 37, 38, AND 39 AT A NEWS CONFERENCE AT NASA'S MARSHALL SPACE FLIGHT CENTER ON JULY 29

ISS039-E-014878 (22 April 2014) --- Part of the upper body of NASA astronaut Rick Mastracchio is pictured in a "selfie" or self-portrait during a spacewalk to replace a failed backup computer relay box in the S0 truss of the International Space Station on April 22, 2014. He was accompanied on the spacewalk by fellow Flight Engineer Steve Swanson of NASA.

ss038e008298 (11/26/2013) --- A view of NASA astronaut Rick Mastracchio, during the Material Science Laboratory (MSL) Solidification and Quench Furnace (SQF) Sample Cartridge Exchange aboard the International Space Station (ISS). The Materials Science Laboratory (MSL) is used for basic materials research in the microgravity environment of the ISS. The MSL can accommodate and support diverse Experiment Modules. In this way many material types, such as metals, alloys, polymers, semiconductors, ceramics, crystals, and glasses, can be studied to discover new applications for existing materials and new or improved materials.

As the construction continued on the International Space Station (ISS), STS-118 astronaut and mission specialist Rick Mastracchio was anchored on the foot restraint of the Canadarm2 as he participated in the third session of Extra Vehicular Activity (EVA) for the mission. Assisting Mastracchio was Expedition 15 flight engineer Clay Anderson (out of frame). During the 5 hour, 28 minute space walk, the two relocated the S-band Antenna Sub-Assembly from the Port 6 (P6) truss to the Port 1 (P1) truss, installed a new transponder on P1 and retrieved the P6 transponder.

As the construction continued on the International Space Station (ISS), STS-118 astronaut and mission specialist Rick Mastracchio participated in the second session of Extra Vehicular Activity (EVA) for the mission. Assisting Mastracchio was Canadian Space Agency representative Dave Williams (out of frame). During the 6 hour, 28 minute space walk, the two removed a faulty control moment gyroscope (CMG-3) and installed a new CMG into the Z1 truss. The failed CMG will remain in its temporary stowage location on the exterior of the station until it is returned to Earth on a later Shuttle mission. The new gyroscope is one of four CMGs that are used to control the orbital attitude of the station.

ISS023-E-024620 (17 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, poses for a photo in the Cupola of the International Space Station while space shuttle Discovery remains docked with the station.

Close-up view of Expedition 39 flight engineer Rick Mastracchio at the close of Extravehicular Activity 26 (EVA 26).

S96-16635 (1996) --- Astronaut Richard Mastracchio.

ISS037-E-028157 (8 Nov. 2013) --- NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, is pictured in the Destiny laboratory of the International Space Station.

JSC2001-01617 (June 2001) --- NASA astronaut Richard A. Mastracchio, mission specialist

ISS023-E-021506 (11 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, participates in the mission's second session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the seven-hour, 26-minute spacewalk, Mastracchio and astronaut Clayton Anderson (out of frame), mission specialist, unhooked and removed the depleted ammonia tank and installed a 1,700-pound ammonia tank on the station’s Starboard 1 truss, completing the second of a three-spacewalk coolant tank replacement process.

ISS023-E-021515 (11 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, participates in the mission's second session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the seven-hour, 26-minute spacewalk, Mastracchio and astronaut Clayton Anderson (out of frame), mission specialist, unhooked and removed the depleted ammonia tank and installed a 1,700-pound ammonia tank on the station’s Starboard 1 truss, completing the second of a three-spacewalk coolant tank replacement process.

ISS023-E-021503 (11 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, participates in the mission's second session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the seven-hour, 26-minute spacewalk, Mastracchio and astronaut Clayton Anderson (out of frame), mission specialist, unhooked and removed the depleted ammonia tank and installed a 1,700-pound ammonia tank on the station’s Starboard 1 truss, completing the second of a three-spacewalk coolant tank replacement process.

ISS023-E-021510 (11 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, participates in the mission's second session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the seven-hour, 26-minute spacewalk, Mastracchio and astronaut Clayton Anderson (out of frame), mission specialist, unhooked and removed the depleted ammonia tank and installed a 1,700-pound ammonia tank on the station’s Starboard 1 truss, completing the second of a three-spacewalk coolant tank replacement process.

ISS023-E-021535 (11 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, participates in the mission's second session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the seven-hour, 26-minute spacewalk, Mastracchio and astronaut Clayton Anderson (out of frame), mission specialist, unhooked and removed the depleted ammonia tank and installed a 1,700-pound ammonia tank on the station’s Starboard 1 truss, completing the second of a three-spacewalk coolant tank replacement process.

ISS023-E-021525 (11 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, participates in the mission's second session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the seven-hour, 26-minute spacewalk, Mastracchio and astronaut Clayton Anderson (out of frame), mission specialist, unhooked and removed the depleted ammonia tank and installed a 1,700-pound ammonia tank on the station’s Starboard 1 truss, completing the second of a three-spacewalk coolant tank replacement process.

ISS023-E-021537 (11 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, participates in the mission's second session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the seven-hour, 26-minute spacewalk, Mastracchio and astronaut Clayton Anderson (out of frame), mission specialist, unhooked and removed the depleted ammonia tank and installed a 1,700-pound ammonia tank on the station’s Starboard 1 truss, completing the second of a three-spacewalk coolant tank replacement process.

ISS023-E-021529 (11 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, participates in the mission's second session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the seven-hour, 26-minute spacewalk, Mastracchio and astronaut Clayton Anderson (out of frame), mission specialist, unhooked and removed the depleted ammonia tank and installed a 1,700-pound ammonia tank on the station’s Starboard 1 truss, completing the second of a three-spacewalk coolant tank replacement process.

SS023-E-023928 (15 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, is pictured in the Harmony node of the International Space Station while space shuttle Discovery remains docked with the station.

ISS023-E-024099 (16 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, prepares to eat a snack at the galley on the middeck of space shuttle Discovery while docked with the International Space Station.

S131-E-008538 (10 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, works in the Quest airlock of the International Space Station while space shuttle Discovery remains docked with the station.

ISS038-E-007156 (22 Nov. 2013) --- NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, exercises on the Cycle Ergometer with Vibration Isolation System (CEVIS) in the Destiny laboratory of the International Space Station.

ISS039-E-017570 (30 April 2013) --- In the European Space Agency's Columbus module, Flight Engineer Rick Mastracchio of NASA prepares to access a tool box designated for intravehicular work.

As the construction continued on the International Space Station (ISS), STS-118 Astronaut Rick Mastracchio and Canada Space Agency's Dave Williams (out of frame), participated in the first session of Extra Vehicular Activity (EVA) for the mission. During the 6 hour, 17 minute space walk, the two attached the Starboard 5 (S5) segment of truss, retracted the forward heat rejecting radiator from the Port 6 (P6) truss, and performed several get ahead tasks.

As the construction continued on the International Space Station (ISS), STS-118 Astronaut Rick Mastracchio and Canada Space Agency representative Dave Williams (out of frame), participated in the first session of Extra Vehicular Activity (EVA) for the mission. During the 6 hour, 17 minute space walk, the two attached the Starboard 5 (S5) segment of truss, retracted the forward heat rejecting radiator from the Port 6 (P6) truss, and performed several get ahead tasks.

As the construction continued on the International Space Station (ISS), STS-118 Astronaut Rick Mastracchio and Canada Space Agency's Dave Williams (out of frame), participated in the first session of Extra Vehicular Activity (EVA) for the mission. During the 6 hour, 17 minute space walk, the two attached the Starboard 5 (S5) segment of truss, retracted the forward heat rejecting radiator from the Port 6 (P6) truss, and performed several get ahead tasks.

ISS023-E-021097 (9 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, participates in the mission's first session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Mastracchio and astronaut Clayton Anderson (out of frame), mission specialist, helped move a new 1,700-pound ammonia tank from space shuttle Discovery’s cargo bay to a temporary parking place on the station, retrieved an experiment from the Japanese Kibo Laboratory exposed facility and replaced a Rate Gyro Assembly on one of the truss segments.

ISS023-E-021178 (9 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, participates in the mission's first session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Mastracchio and astronaut Clayton Anderson (out of frame), mission specialist, helped move a new 1,700-pound ammonia tank from space shuttle Discovery’s cargo bay to a temporary parking place on the station, retrieved an experiment from the Japanese Kibo Laboratory exposed facility and replaced a Rate Gyro Assembly on one of the truss segments.

ISS023-E-020981 (9 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, participates in the mission's first session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Mastracchio and astronaut Clayton Anderson (out of frame), mission specialist, helped move a new 1,700-pound ammonia tank from space shuttle Discovery’s cargo bay to a temporary parking place on the station, retrieved an experiment from the Japanese Kibo Laboratory exposed facility and replaced a Rate Gyro Assembly on one of the truss segments.

ISS023-E-021129 (9 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, participates in the mission's first session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Mastracchio and astronaut Clayton Anderson (out of frame), mission specialist, helped move a new 1,700-pound ammonia tank from space shuttle Discovery’s cargo bay to a temporary parking place on the station, retrieved an experiment from the Japanese Kibo Laboratory exposed facility and replaced a Rate Gyro Assembly on one of the truss segments.

ISS023-E-021096 (9 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, participates in the mission's first session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Mastracchio and astronaut Clayton Anderson (out of frame), mission specialist, helped move a new 1,700-pound ammonia tank from space shuttle Discovery’s cargo bay to a temporary parking place on the station, retrieved an experiment from the Japanese Kibo Laboratory exposed facility and replaced a Rate Gyro Assembly on one of the truss segments.

ISS023-E-020986 (9 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, participates in the mission's first session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Mastracchio and astronaut Clayton Anderson (out of frame), mission specialist, helped move a new 1,700-pound ammonia tank from space shuttle Discovery’s cargo bay to a temporary parking place on the station, retrieved an experiment from the Japanese Kibo Laboratory exposed facility and replaced a Rate Gyro Assembly on one of the truss segments.

ISS023-E-021088 (9 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, participates in the mission's first session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Mastracchio and astronaut Clayton Anderson (out of frame), mission specialist, helped move a new 1,700-pound ammonia tank from space shuttle Discovery’s cargo bay to a temporary parking place on the station, retrieved an experiment from the Japanese Kibo Laboratory exposed facility and replaced a Rate Gyro Assembly on one of the truss segments.

ISS023-E-020983 (9 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, participates in the mission's first session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Mastracchio and astronaut Clayton Anderson (out of frame), mission specialist, helped move a new 1,700-pound ammonia tank from space shuttle Discovery’s cargo bay to a temporary parking place on the station, retrieved an experiment from the Japanese Kibo Laboratory exposed facility and replaced a Rate Gyro Assembly on one of the truss segments.

ISS039-E-020702 (13 May 2014) --- NASA astronaut Rick Mastracchio, Expedition 39 flight engineer, places his crew patch on the wall in the Quest airlock of the Earth-orbiting International Space Station, continuing a Quest-based tradition of station crew members who have participated in space walks on their current flights. A short time later, Mastracchio joined Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency and Flight Engineer Mikhail Tyurin of Roscosmos as they departed the orbital outpost in a Soyuz vehicle.

As the construction continued on the International Space Station (ISS), STS-118 astronaut and mission specialist, Dave Williams, representing the Canadian Space Agency, was anchored on the foot restraint of the Canadarm2 as he participated in the second session of Extra Vehicular Activity (EVA) for the mission. Assisting Williams was Rick Mastracchio (out of frame). During the 6 hour, 28 minute space walk, the two removed a faulty control moment gyroscope (CMG-3) and installed a new CMG into the Z1 truss. The failed CMG will remain in its temporary stowage location on the exterior of the station until it is returned to Earth on a later Shuttle mission. The new gyroscope is one of four CMGs that are used to control the orbital attitude of the station.

ISS037-E-028165 (9 Nov. 2013) --- NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, equipped with a bungee harness, exercises on the Combined Operational Load Bearing External Resistance Treadmill (COLBERT) in the Tranquility node of the International Space Station.

S131-E-008742 (11 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, is pictured near a spoon and food package floating freely on the middeck of space shuttle Discovery while docked with the International Space Station.

ISS037-E-028164 (9 Nov. 2013) --- NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, equipped with a bungee harness, exercises on the Combined Operational Load Bearing External Resistance Treadmill (COLBERT) in the Tranquility node of the International Space Station.

ISS038-E-027223 (9 Jan. 2014) --- NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, works at the Fluid Science Laboratory (FSL) in the Columbus laboratory of the International Space Station.

ISS038-E-027224 (9 Jan. 2014) --- NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, works at the Fluid Science Laboratory (FSL) in the Columbus laboratory of the International Space Station.

ISS023-E-022222 (13 April 2010) --- Dwarfed by components of the International Space Station, NASA astronaut Rick Mastracchio (bottom center), STS-131 mission specialist, is seen working near the Quest airlock during the mission's third and final session of extravehicular activity (EVA) as construction and maintenance continue on the orbital complex. During the six-hour, 24-minute spacewalk, Mastracchio and astronaut Clayton Anderson (out of frame), mission specialist, hooked up fluid lines of the new 1,700-pound tank, retrieved some micrometeoroid shields from the Quest airlock’s exterior, relocated a portable foot restraint and prepared cables on the Zenith 1 truss for a spare Space to Ground Ku-Band antenna, two chores required before space shuttle Atlantis' STS-132/ULF-4 mission in May. Also featured in the image are a docked Russian Soyuz spacecraft and space shuttle Discovery.

S131-E-009477 (13 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, participates in the mission's third and final session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 24-minute spacewalk, Mastracchio and astronaut Clayton Anderson (out of frame), mission specialist, hooked up fluid lines of the new 1,700-pound tank, retrieved some micrometeoroid shields from the Quest airlock’s exterior, relocated a portable foot restraint and prepared cables on the Zenith 1 truss for a spare Space to Ground Ku-Band antenna, two chores required before space shuttle Atlantis' STS-132/ULF-4 mission in May.

ISS023-E-022880 (13 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, participates in the mission's third and final session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 24-minute spacewalk, Mastracchio and astronaut Clayton Anderson (out of frame), mission specialist, hooked up fluid lines of the new 1,700-pound tank, retrieved some micrometeoroid shields from the Quest airlock’s exterior, relocated a portable foot restraint and prepared cables on the Zenith 1 truss for a spare Space to Ground Ku-Band antenna, two chores required before space shuttle Atlantis' STS-132/ULF-4 mission in May.

ISS023-E-022882 (13 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, participates in the mission's third and final session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 24-minute spacewalk, Mastracchio and astronaut Clayton Anderson (out of frame), mission specialist, hooked up fluid lines of the new 1,700-pound tank, retrieved some micrometeoroid shields from the Quest airlock’s exterior, relocated a portable foot restraint and prepared cables on the Zenith 1 truss for a spare Space to Ground Ku-Band antenna, two chores required before space shuttle Atlantis' STS-132/ULF-4 mission in May.

S131-E-009478 (13 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, participates in the mission's third and final session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 24-minute spacewalk, Mastracchio and astronaut Clayton Anderson (out of frame), mission specialist, hooked up fluid lines of the new 1,700-pound tank, retrieved some micrometeoroid shields from the Quest airlock’s exterior, relocated a portable foot restraint and prepared cables on the Zenith 1 truss for a spare Space to Ground Ku-Band antenna, two chores required before space shuttle Atlantis' STS-132/ULF-4 mission in May.

ISS023-E-022227 (13 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, works near the Quest airlock during the mission's third and final session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 24-minute spacewalk, Mastracchio and astronaut Clayton Anderson (out of frame), mission specialist, hooked up fluid lines of the new 1,700-pound tank, retrieved some micrometeoroid shields from the Quest airlock’s exterior, relocated a portable foot restraint and prepared cables on the Zenith 1 truss for a spare Space to Ground Ku-Band antenna, two chores required before space shuttle Atlantis' STS-132/ULF-4 mission in May.

ISS039-E-020704 (13 May 2014) --- NASA astronaut Rick Mastracchio, Expedition 39 flight engineer, signs a wall in the Quest airlock of the Earth-orbiting International Space Station after mounting his crew patch, continuing a Quest-based tradition of station crew members who have participated in space walks on their respective flights. A short time later, Mastracchio joined Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency and Flight Engineer Mikhail Tyurin of Roscosmos as they departed the orbital outpost in a Soyuz vehicle.

STS106-370-006 (8-20 September 2000) --- Astronaut Richard A. Mastracchio, STS-106 mission specialist, is photographed on the aft flight deck of the Space Shuttle Atlantis. Mastracchio is marking his first space flight.

Expedition 39 Flight Engineer Rick Mastracchio of NASA answers questions from the media during a welcome home ceremony, Wednesday, May 14, 2014 at the Karaganda Airport in Kazakhstan. Mastracchio, Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), and Soyuz Commander Mikhail Tyurin of Roscosmos landed in their Soyuz TMA-11M spacecraft just a few hours earlier near the town of Zhezkazgan. Wakata, Tyurin and Mastracchio returned to Earth after more than six months onboard the International Space Station where they served as members of the Expedition 38 and 39 crews. Photo Credit: (NASA/Bill Ingalls)

S131-E-007159 (6 April 2010) --- NASA astronaut Alan Poindexter (right), STS-131 commander; along with astronauts Clayton Anderson (center) and Rick Mastracchio, both mission specialists, are pictured on the middeck deck of space shuttle Discovery during flight day two activities.

iss038e001780 (11/14/2013) --- A view of NASA astronaut Rick Mastracchio, posing with DIAPASON, in the U.S. Laboratory aboard the International Space Station(ISS). The DIAPASON conducts high-accuracy environmental control,pollution monitoring and particle recording with a simple instrument that captures nanoparticles.

S131-E-008519 (10 April 2010) --- NASA astronauts Rick Mastracchio (left) and Clayton Anderson, both STS-131 mission specialists, work in the Quest airlock of the International Space Station while space shuttle Discovery remains docked with the station.

ISS038-E-053250 (18 Feb. 2014) --- NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, works with the Burning and Suppression of Solids (BASS-II) experiment in the Microgravity Science Glovebox (MSG) located in the Destiny laboratory of the International Space Station. BASS-II explores how different substances burn in microgravity with benefits for combustion on Earth and fire safety in space.

ISS038-E-053251 (18 Feb. 2014) --- NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, works with the Burning and Suppression of Solids (BASS-II) experiment in the Microgravity Science Glovebox (MSG) located in the Destiny laboratory of the International Space Station. BASS-II explores how different substances burn in microgravity with benefits for combustion on Earth and fire safety in space.

ISS038-E-019271 (20 Dec. 2013) --- In the Quest airlock onboard the Earth-orbiting International Space Station, on the eve of their first spacewalk together, NASA astronauts Rick Mastracchio, right, and Mike Hopkins are completely suited in their extravehicular mobility unit spacesuits. NASA has scheduled at least two sessions of extravehicular activity for the two flight engineers to troubleshoot a faulty coolant pump on the orbital outpost.

ISS023-E-024146 (16 April 2010) --- NASA astronauts Rick Mastracchio (top) and Clayton Anderson, both STS-131 mission specialists, pose for a photo near the Combined Operational Load Bearing External Resistance Treadmill (COLBERT) in the Harmony node of the International Space Station while space shuttle Discovery remains docked with the station.

S118-E-07052 (13 Aug. 2007) --- Astronaut Rick Mastracchio, STS-118 mission specialist, smiles for a photo near the galley on the middeck of Space Shuttle Endeavour while docked with the International Space Station. A flour tortilla floats freely near Mastracchio.

ISS038-E-000714 (13 Nov. 2013) --- NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, works with equipment in the Destiny laboratory of the International Space Station.

ISS038-E-009306 (28 Nov. 2013) --- NASA astronauts Michael Hopkins (left) and Rick Mastracchio, both Expedition 38 flight engineers, pose for a photo with a Thanksgiving meal in the Unity node of the International Space Station.

Expedition 39 flight engineer Rick Mastracchio poses for a photo with the replacement Fan Pump Separator (FPS) and Extravehicular Mobility Unit (EMU) 3005. Image was taken in the Quest Airlock (A/L) during FPS remove and replace operations.

ISS039-E-018462 (5 May 2014) --? In the Harmony node of the Earth-orbiting International Space Station, NASA astronaut Rick Mastracchio, Expedition 39 flight engineer, prepares culture chambers for an experiment.

ISS038-E-031970 (12 Jan. 2014) --- NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, is pictured during Cygnus cargo preparation in the Harmony node of the International Space Station.

S118-E-05523 (9 Aug. 2007) --- Astronaut Rick Mastracchio, STS-118 mission specialist, works near the control panel on the aft flight deck of Space Shuttle Endeavour during flight day two activities.

ISS023-E-023970 (14 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, is pictured in the Unity node of the International Space Station while space shuttle Discovery remains docked with the station.

S118-E-06137 (11 Aug. 2007) --- Astronauts Rick Mastracchio and Canadian Space Agency's Dave Williams (out of frame), both STS-118 mission specialists, participate in the mission's first planned session of extravehicular activity (EVA), as construction continues on the International Space Station. During the 6-hour, 17-minute spacewalk Mastracchio and Williams attached the Starboard 5 (S5) segment of the station's truss, retracted the forward heat-rejecting radiator from the station's Port 6 (P6) truss, and performed several get-ahead tasks.

S118-E-06139 (11 Aug. 2007) --- Astronauts Rick Mastracchio and Canadian Space Agency's Dave Williams (out of frame), both STS-118 mission specialists, participate in the mission's first planned session of extravehicular activity (EVA), as construction continues on the International Space Station. During the 6-hour, 17-minute spacewalk Mastracchio and Williams attached the Starboard 5 (S5) segment of the station's truss, retracted the forward heat-rejecting radiator from the station's Port 6 (P6) truss, and performed several get-ahead tasks.

ISS023-E-021011 (9 April 2010) --- NASA astronaut Rick Mastracchio, STS-131 mission specialist, participates in the mission's first session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 27-minute spacewalk, Mastracchio and astronaut Clayton Anderson (out of frame), mission specialist, helped move a new 1,700-pound ammonia tank from space shuttle Discovery’s cargo bay to a temporary parking place on the station, retrieved an experiment from the Japanese Kibo Laboratory exposed facility and replaced a Rate Gyro Assembly on one of the truss segments.

S118-E-06135 (11 Aug. 2007) --- Astronauts Rick Mastracchio and Canadian Space Agency's Dave Williams (out of frame), both STS-118 mission specialists, participate in the mission's first planned session of extravehicular activity (EVA), as construction continues on the International Space Station. During the 6-hour, 17-minute spacewalk Mastracchio and Williams attached the Starboard 5 (S5) segment of the station's truss, retracted the forward heat-rejecting radiator from the station's Port 6 (P6) truss, and performed several get-ahead tasks.

S118-E-06134 (11 Aug. 2007) --- Astronauts Rick Mastracchio and Canadian Space Agency's Dave Williams (out of frame), both STS-118 mission specialists, participate in the mission's first planned session of extravehicular activity (EVA), as construction continues on the International Space Station. During the 6-hour, 17-minute spacewalk Mastracchio and Williams attached the Starboard 5 (S5) segment of the station's truss, retracted the forward heat-rejecting radiator from the station's Port 6 (P6) truss, and performed several get-ahead tasks.

Expedition 39 Flight Engineer Rick Mastracchio of NASA, left, and NASA Flight Surgeon Joseph Schmid prepare to depart in a helicopter from the Soyuz landing site near the town of Zhezkazgan, Kazakhstan where Mastracchio and Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), and Soyuz Commander Mikhail Tyurin of Roscosmos landed in their Soyuz TMA-11M spacecraft, Wednesday, May 14, 2014. Wakata, Tyurin and Mastracchio returned to Earth after more than six months onboard the International Space Station where they served as members of the Expedition 38 and 39 crews. Photo Credit: (NASA/Bill Ingalls)

Expedition 39 Flight Engineer Rick Mastracchio of NASA, is helped out of a helicopter at the Karaganda Airport in Kazakhstan after the two hour flight from the Soyuz landing site near the town of Zhezkazgan, Kazakhstan where Mastracchio and Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA), and Soyuz Commander Mikhail Tyurin of Roscosmos landed in their Soyuz TMA-11M spacecraft, Wednesday, May 14, 2014. Wakata, Tyurin and Mastracchio returned to Earth after more than six months onboard the International Space Station where they served as members of the Expedition 38 and 39 crews. Photo Credit: (NASA/Bill Ingalls)

ISS038-E-046385 (12 Feb. 2014) --- NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, uses a computer while setting up the Microgravity Science Glovebox (MSG) for the Burning and Suppression of Solids (BASS-II) experiment in the Destiny laboratory of the International Space Station. BASS-II explores how different substances burn in microgravity with benefits for combustion on Earth and fire safety in space.

ISS038-E-046381 (12 Feb. 2014) --- NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, sets up the Microgravity Science Glovebox (MSG) for the Burning and Suppression of Solids (BASS-II) experiment in the Destiny laboratory of the International Space Station. BASS-II explores how different substances burn in microgravity with benefits for combustion on Earth and fire safety in space.

ISS038-E-046391 (12 Feb. 2014) --- NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, sets up the Microgravity Science Glovebox (MSG) for the Burning and Suppression of Solids (BASS-II) experiment in the Destiny laboratory of the International Space Station. BASS-II explores how different substances burn in microgravity with benefits for combustion on Earth and fire safety in space.

ISS038-E-000068 (10 Nov. 2013) --- In the International Space Station?s Kibo laboratory, Japan Aerospace Exploration Agency astronaut Koichi Wakata (left) and NASA astronaut Rick Mastracchio, both Expedition 38 flight engineers, conduct a session with a pair of bowling-ball-sized free-flying satellites known as Synchronized Position Hold, Engage, Reorient, Experimental Satellites, or SPHERES.

ISS038-E-046387 (12 Feb. 2014) --- NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, sets up the Microgravity Science Glovebox (MSG) for the Burning and Suppression of Solids (BASS-II) experiment in the Destiny laboratory of the International Space Station. BASS-II explores how different substances burn in microgravity with benefits for combustion on Earth and fire safety in space.

ISS038-E-031992 (13 Jan. 2014) --- NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, works with the Ant Forage Habitat Facility in the Destiny laboratory of the International Space Station. The study examines the behavior of ants by comparing groups living on Earth to those in space.

Expedition 39 flight engineer Rick Mastracchio looks for a loose connection as he conducts troubleshooting operations on the Carbon Dioxide Removal Assembly (CDRA) in the Destiny U.S. Laboratory. Image was released by astronaut on Twitter. (IO Note: Camera data file contains incorrect time.)

ISS039-E-010325 (9 April 2014) --- NASA astronaut Rick Mastracchio, Expedition 38/39 flight engineer, is seen in the Harmony node on the Earth-orbiting International Space Station performing maintenance on a Carbon Dioxide Removal Assembly (CDRA) Desiccant/Adsorbent Bed on April 9, 2014.

ISS039-E-013152 (17 April 2014) --- Inside the Quest airlock of the International Space Station, NASA astronauts Steve Swanson (left) and Rick Mastracchio, both Expedition 39 flight engineers, participate in a dress rehearsal for an upcoming spacewalk during which they are to replace a failed backup computer relay box in the S0 truss.

S118-E-07383 (15 Aug. 2007) --- Astronaut Rick Mastracchio, STS-118 mission specialist, participates in the mission's third planned session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the 5-hour, 28-minute spacewalk, Mastracchio and astronaut Clay Anderson (out of frame), Expedition 15 flight engineer, relocated the S-Band Antenna Sub-Assembly from Port 6 (P6) to Port 1 (P1) truss, installed a new transponder on P1 and retrieved the P6 transponder.