Extravehicular Activities in Space

Astronauts performing spacewalks outside the International Space Station, showcasing various tasks like hardware installation against the backdrop of Earth and space.

iss059e114054 (6/20/2019) --- View of the Orbiting Carbon Observatory-3 (OCO-3) payload on the Japanese Experiment Module (JEM) Exposed Facility (EF). The OCO-3, to be installed on the Japanese Experiment Module-Exposed Facility (JEM-EF) of the International Space Station (ISS), observes the complex dynamics of the Earths atmospheric carbon cycle. The OCO-3 payload is designed to collect the space-based measurements needed to quantify variations in the column-averaged atmospheric carbon dioxide (CO2) dry-air mole fraction, XCO2, with the precision, resolution, and coverage needed to improve the understanding of surface CO2 sources and sinks (fluxes) on regional scales (?1000 km), and the processes controlling their variability over the seasonal cycle.

S123-E-006087 (13/14 March 2008) --- Astronauts Rick Linnehan (right), STS-123 mission specialist; and Garrett Reisman, Expedition 16 flight engineer, participate in the mission's first scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the seven-hour and one-minute spacewalk, Linnehan and Reisman prepared the Japanese logistics module-pressurized section (JLP) for removal from Space Shuttle Endeavour's payload bay; opened the Centerline Berthing Camera System on top of the Harmony module; removed the Passive Common Berthing Mechanism and installed both the Orbital Replacement Unit (ORU) tool change out mechanisms on the Canadian-built Dextre robotic system, the final element of the station's Mobile Servicing System.

S118-E-07966 (15 Aug. 2007) --- Astronaut Clay Anderson, Expedition 15 flight engineer, 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, Anderson and astronaut Rick Mastracchio (out of frame), STS-118 mission specialist, 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. The blackness of space and Earth's horizon provide the backdrop for the scene.

S134-E-007141 (18 May 2011) --- In the grasp of space shuttle Endeavours robotic Canadarm, the Express Logistics Carrier-3 (ELC-3) is transferred from Endeavours payload bay for hand off to the International Space Stations Canadarm2 to be installed on the left side of the stations truss structure. ELC-3 holds spare hardware for future station use, including an ammonia tank, a high pressure gas tank, a cargo transport container, two S-band antenna assemblies and a spare arm for DEXTRE, the Special Purpose Dexterous Manipulator.

ISS028-E-016271 (12 July 2011) --- NASA astronaut Ron Garan, Expedition 28 flight engineer, egresses the Quest airlock on the International Space Station as he prepares to join crewmate Mike Fossum on a July 12 spacewalk

ISS028-E-016269 (12 July 2011) --- NASA astronaut Ron Garan, Expedition 28 flight engineer, egresses the Quest airlock on the International Space Station as he prepares to join crewmate Mike Fossum on a July 12 spacewalk

$iss059e114054 (6/20/2019) --- View of the Orbiting Carbon Observatory-3 (OCO-3) payload on the Japanese Experiment Module (JEM) Exposed Facility (EF). The OCO-3, to be installed on the Japanese Experiment Module-Exposed Facility (JEM-EF) of the International Space Station (ISS), observes the complex dynamics of the Earths atmospheric carbon cycle. The OCO-3 payload is designed to collect the space-based measurements needed to quantify variations in the column-averaged atmospheric carbon dioxide (CO2) dry-air mole fraction, XCO2, with the precision, resolution, and coverage needed to improve the understanding of surface CO2 sources and sinks (fluxes) on regional scales (?1000 km), and the processes controlling their variability over the seasonal cycle.$

ISS020-E-022004 (18 July 2009) --- AstronautsTim Kopra (left) and Dave Wolf kick off new work on the International Space Station with the first of five scheduled space walks, to be spread over the next several days.

S127-E-009248 (27 July 2009) --- Astronaut Christopher Cassidy, STS-127 mission specialist, participates in the mission's fifth and final session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the four-hour, 54-minute spacewalk, Cassidy and astronaut Tom Marshburn (out of frame), mission specialist, secured multi-layer insulation around the Special Purpose Dexterous Manipulator known as Dextre, split out power channels for two space station Control Moment Gyroscopes, installed video cameras on the front and back of the new Japanese Exposed Facility and performed a number of get ahead” tasks, including tying down some cables and installing handrails and a portable foot restraint to aid future spacewalkers.

The main objective of the STS-100 mission, the sixth International Space Station (ISS) assembly flight, was the delivery and installation of the Canadian-built Space Station Remote Manipulator System (SSRMS), or Canadarm2. In this photograph, astronaut Scott E. Parazynski, mission specialist, works with cables associated with the robotic arm during one of two days of extravehicular activity (EVA). Both space walks were shared with Chris A. Hadfield, mission specialist representing the Canadian Space Agency (CSA), who is visible in the helmet visor of Parazynski. STS-100 launched April 19, 2001 aboard the Space Shuttle Orbiter Endeavour for an 11 day mission.

S121-E-06219 (10 July 2006) --- Astronaut Michael E. Fossum, STS-121 mission specialist, removes the trailing umbilical system-reel assembly (TUS-RA) from the S0 truss on the International Space Station during the mission's second session of extravehicular activity (EVA). Fossum is anchored on the mobile foot restraint on the Canadarm2.

S126-E-008324 (20 Nov. 2008) --- Astronaut Shane Kimbrough, STS-126 mission specialist, participates in the mission's second scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 45-minute spacewalk, Kimbrough and astronaut Heidemarie Stefanyshyn-Piper (out of frame), mission specialist, continued the process of removing debris and applying lubrication around the starboard Solar Alpha Rotary Joint (SARJ), replaced four more of the SARJ's 12 trundle bearing assemblies, relocated two equipment carts and applied lubrication to the station's robotic Canadarm2.

ISS030-E-080004 (16 Feb. 2012) --- Russian cosmonaut Oleg Kononenko, Expedition 30 flight engineer, participates in a session of extravehicular activity (EVA) to continue outfitting the International Space Station. During the six-hour, 15-minute spacewalk, Kononenko and Russian cosmonaut Anton Shkaplerov (out of frame), flight engineer, moved the Strela-1 crane from the Pirs Docking Compartment to begin preparing the Pirs for its replacement next year with a new laboratory and docking module. The duo used another boom, the Strela-2, to move the hand-operated crane to the Poisk module for future assembly and maintenance work. Both telescoping booms extend like fishing rods and are used to move massive components outside the station. On the exterior of the Poisk Mini-Research Module 2 (MRM2), they also installed the Vinoslivost Materials Sample Experiment, which will investigate the influence of space on the mechanical properties of the materials. The spacewalkers also collected a test s

STS111-E-5162 (11 June 2002) --- Astronauts Franklin R. Chang-Diaz (center frame) and Philippe Perrin, both STS-111 mission specialists, work in tandem on the second scheduled session of extravehicular activity (EVA) for the STS-111 mission. During the spacewalk, Chang-Diaz and Perrin attached power, data and video cables from the International Space Station (ISS) to the Mobile Base System (MBS) and used a power wrench to complete the attachment of the MBS onto the Mobile Transporter (MT). Perrin represents CNES, the French Space Agency.

S124-E-006292 (3 June 2008) --- Backdropped by Earth's horizon and the blackness of space, various components of the International Space Station are featured in this image photographed by a STS-124 crewmember during the mission's first scheduled spacewalk while Space Shuttle Discovery is docked with the station. The Kibo Japanese Pressurized Module (JPM) is visible in the foreground.

ISS041-E-067002 (7 Oct. 2014) --- NASA astronaut Reid Wiseman, Expedition 41 flight engineer, participates in a session of extravehicular activity (EVA) as work continues on the International Space Station. During the six-hour, 13-minute spacewalk, Wiseman and European Space Agency astronaut Alexander Gerst (out of frame), flight engineer, worked outside the space station's Quest airlock relocating a failed cooling pump to external stowage and installing gear that provides back up power to external robotics equipment.

ISS023-E-044876 (17 May 2010) --- NASA astronaut Steve Bowen, STS-132 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 seven-hour, 25-minute spacewalk, Bowen and NASA astronaut Garrett Reisman (out of frame), mission specialist, loosened bolts holding six replacement batteries, installed a second antenna for high-speed Ku-band transmissions and adding a spare parts platform to Dextre, a two-armed extension for the stations robotic arm.

S127-E-009556 (27 July 2009) --- A close-up view of the Japanese Experiment Module - Exposed Facility and Kibo laboratory of the International Space Station are featured in this image photographed by a STS-127 crew member while Space Shuttle Endeavour remains docked with the station.

S124-E-007239 (8 June 2008) --- Astronaut Ron Garan, STS-124 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, 33-minute spacewalk, Garan and astronaut Mike Fossum (out of frame), mission specialist, exchanged a depleted Nitrogen Tank Assembly for a new one, removed thermal covers and launch locks from the Kibo laboratory, reinstalled a repaired television camera onto the space station's left P1 truss, and retrieved samples of a dust-like substance from the left Solar Alpha Rotary Joint for analysis by experts on the ground.

ISS033-E-017373 (1 Nov. 2012) --- Japan Aerospace Exploration Agency astronaut Aki Hoshide, Expedition 33 flight engineer, participates in a session of extravehicular activity (EVA) outside the International Space Station on Nov. 1, 2012. During the six-hour, 38-minute spacewalk, Hoshide and NASA astronaut Sunita Williams (out of frame), commander, ventured outside the orbital outpost to perform work and to support ground-based troubleshooting of an ammonia leak.

. iss069e020815 (June 15, 2023) - NASA astronaut Woody Hburg is barely visible (center) tethered to the International Space Station's starboard truss structure during a spacewalk to install a roll-out solar array. Behind Hoburg, and at right, are the SpaceX Dragon cargo vehicle docked to the Harmony module's space-facing port and the SpaceX Dragon crew vehicle docked to Harmony's forward port.

S116-E-06938 (18 Dec. 2006) --- Astronaut Robert L. Curbeam Jr., STS-116 mission specialist, exits the Quest Airlock of the International Space Station as he and European Space Agency (ESA) astronaut Christer Fuglesang (out of frame), mission specialist, begin the mission's fourth session of extravehicular activity (EVA) while Space Shuttle Discovery was docked with the station. Curbeam and Fuglesang worked in tandem, using specially-prepared, tape-insulated tools, to guide the array wing neatly inside its blanket box during the 6-hour, 38-minute spacewalk.

ISS032-E-021296 (20 Aug. 2012) --- Russian cosmonaut Gennady Padalka, Expedition 32 commander, participates in a session of extravehicular activity (EVA) to continue outfitting the International Space Station. During the five-hour, 51-minute spacewalk, Padalka and Russian cosmonaut Yuri Malenchenko (out of frame), flight engineer, moved the Strela-2 cargo boom from the Pirs docking compartment to the Zarya module to prepare Pirs for its eventual replacement with a new Russian multipurpose laboratory module. The two spacewalking cosmonauts also installed micrometeoroid debris shields on the exterior of the Zvezda service module and deployed a small science satellite.

S127-E-007170 (20 July 2009) --- This is one of a series of digital still images showing astronaut Dave Wolf performing his second spacewalk and the Endeavours second also of the scheduled five overall in a little over a weeks time to continue work on the International Space Station. Astronauts Wolf and Tom Marshburn (out of frame), both mission specialists, successfully transferred a spare KU-band antenna to long-term storage on the space station, along with a backup coolant system pump module and a spare drive motor for the station's robot arm transporter. Installation of a television camera on the Japanese Exposed Facility experiment platform was deferred to a later spacewalk.

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.

iss059e005177 (March 29, 2019) --- NASA astronaut Christina Koch exits the Quest airlock shortly after setting her U.S. spacesuit to battery power beginning her first spacewalk to upgrade the International Space Station's power storage capacity. She and fellow spacewalker Nick Hague (out of frame) of NASA worked outside in the vacuum of space for six hours and 45 minutes to continue swapping batteries and install adapter plates on the station's Port-4 truss structure.

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.

ISS005-E-21775 (28 November 2002) --- Astronauts Michael E. Lopez-Alegria (left) and John B. Herrington, STS-113 mission specialists, work on the newly installed Port One (P1) truss on the International Space Station (ISS) during a session of extravehicular activity (EVA). The end effector of the Canadarm2 / Space Station Remote Manipulator System (SSRMS) and Earths horizon are visible in right frame.

S133-E-007379 (28 Feb. 2011) --- NASA astronauts Steve Bowen and Alvin Drew, both STS-133 mission specialists, participate in the missions first session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 34-minute spacewalk, Bowen and Drew installed the J612 power extension cable, move a failed ammonia pump module to the External Stowage Platform 2 on the Quest Airlock for return to Earth at a later date, installed a camera wedge on the right hand truss segment, installed extensions to the mobile transporter rail and exposed the Japanese Message in a Bottle experiment to space.

S123-E-008588 (23 March 2008) --- Astronaut Robert L. Behnken, STS-123 mission specialist, while holding a handrail on the Kibo Logistics Module, waves to members of the Endeavour and International Space Station crews working inside the orbital complex during the fifth and final spacewalk involving the STS-123/Expedition 16 personnel.

ISS041-E-067002 (7 Oct. 2014) --- NASA astronaut Reid Wiseman, Expedition 41 flight engineer, participates in a session of extravehicular activity (EVA) as work continues on the International Space Station. During the six-hour, 13-minute spacewalk, Wiseman and European Space Agency astronaut Alexander Gerst (out of frame), flight engineer, worked outside the space station's Quest airlock relocating a failed cooling pump to external stowage and installing gear that provides back up power to external robotics equipment.

ISS016-E-006875 (26 Oct. 2007) --- Astronaut Scott Parazynski, STS-120 mission specialist, participates in the first of five scheduled sessions of extravehicular activity (EVA) to perform work on the International Space Station while Space Shuttle Discovery is docked to the station. In just over six hours, Parazynski and astronaut Doug Wheelock (out of frame), mission specialist, installed the Harmony module in its temporary location on the station, readied the P6 truss for its relocation during the second EVA session, retrieved a failed radio communications antenna and snapped shut a window cover on Harmony that opened during launch on Discovery.

S127-E-007136 (20 July 2009) --- This is one of a series of digital still images showing astronaut Dave Wolf performing his second spacewalk and the Endeavours second also of the scheduled five overall in a little over a weeks time to continue work on the International Space Station. Astronauts Wolf and Tom Marshburn (out of frame), both mission specialists, successfully transferred a spare KU-band antenna to long-term storage on the space station, along with a backup coolant system pump module and a spare drive motor for the station's robot arm transporter. Installation of a television camera on the Japanese Exposed Facility experiment platform was deferred to a later spacewalk.

S118-E-07019 (13 Aug. 2007) --- Astronaut Rick Mastracchio, STS-118 mission specialist, participates in the mission's second planned session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the 6-hour, 28-minute spacewalk, Mastracchio and astronaut Dave Williams (out of frame), mission specialist representing the Canadian Space Agency, removed a faulty control moment gyroscope (CMG-3) and installed a new CMG into the station's Z1 truss. The failed CMG will remain at its temporary stowage location on the station's exterior 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 station's attitude in orbit.

S117-E-07264 (13 June 2007) --- Astronauts Steven Swanson and Patrick Forrester (out of frame), both STS-117 mission specialists, participate in the mission's second planned session of extravehicular activity (EVA), as construction resumes on the International Space Station. Among other tasks, Forrester and Swanson removed all of the launch locks holding the 10-foot-wide solar alpha rotary joint in place and began the solar array retraction.

ISS041-E-067002 (7 Oct. 2014) --- NASA astronaut Reid Wiseman, Expedition 41 flight engineer, participates in a session of extravehicular activity (EVA) as work continues on the International Space Station. During the six-hour, 13-minute spacewalk, Wiseman and European Space Agency astronaut Alexander Gerst (out of frame), flight engineer, worked outside the space station's Quest airlock relocating a failed cooling pump to external stowage and installing gear that provides back up power to external robotics equipment.

S127-E-007139 (20 July 2009) --- This is one of a series of digital still images showing astronaut Dave Wolf performing his second spacewalk and the Endeavours second also of the scheduled five overall in a little over a weeks time to continue work on the International Space Station. Astronauts Wolf and Tom Marshburn (out of frame), both mission specialists, successfully transferred a spare KU-band antenna to long-term storage on the space station, along with a backup coolant system pump module and a spare drive motor for the station's robot arm transporter. Installation of a television camera on the Japanese Exposed Facility experiment platform was deferred to a later spacewalk.

ISS016-E-009989 (9 Nov. 2007) --- Astronaut Peggy A. Whitson, Expedition 16 commander, participates in a session of extravehicular activity (EVA) as construction continues on the International Space Station (ISS). During the spacewalk Whitson and cosmonaut Yuri I. Malenchenko (out of frame), flight engineer representing Russia's Federal Space Agency, prepared for the relocation of the Pressurized Mating Adapter 2 (PMA-2) and the subsequent move of the new Harmony node to its permanent ISS home.

ISS006-E-46368 (8 April 2003) --- Astronauts Donald R. Pettit (left), Expedition Six NASA ISS science officer, and Kenneth D. Bowersox, mission commander, work in tandem on a session of extravehicular activity (EVA) as they perform a variety of maintenance tasks on the International Space Station (ISS). The spacewalk began at 7:40 a.m. (CDT) and ended at 2:06 p.m. (CDT) on April 8, 2003.

ISS041-E-067002 (7 Oct. 2014) --- NASA astronaut Reid Wiseman, Expedition 41 flight engineer, participates in a session of extravehicular activity (EVA) as work continues on the International Space Station. During the six-hour, 13-minute spacewalk, Wiseman and European Space Agency astronaut Alexander Gerst (out of frame), flight engineer, worked outside the space station's Quest airlock relocating a failed cooling pump to external stowage and installing gear that provides back up power to external robotics equipment.

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A portion of the International Space Station.

S123-E-006090 (13/14 March 2008) --- Astronaut Garrett Reisman, Expedition 16 flight engineer, participates in the mission's first scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the seven-hour and one-minute spacewalk, Reisman and astronaut Rick Linnehan (out of frame), STS-123 mission specialist, prepared the Japanese logistics module-pressurized section (JLP) for removal from Space Shuttle Endeavour's payload bay; opened the Centerline Berthing Camera System on top of the Harmony module; removed the Passive Common Berthing Mechanism and installed both the Orbital Replacement Unit (ORU) tool change out mechanisms on the Canadian-built Dextre robotic system, the final element of the station's Mobile Servicing System.

ISS022-E-062898 (11 Feb. 2010) --- NASA astronaut Robert Behnken, STS-130 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 6-hour, 32-minute spacewalk, Behnken and astronaut Nicholas Patrick (out of frame), mission specialist, relocated a temporary platform from the Special Purpose Dexterous Manipulator, or Dextre, to the stations truss structure and installed two handles on the robot. Once Tranquility was structurally mated to Unity, the spacewalkers connected heater and data cables that will integrate the new module with the rest of the stations systems. They also pre-positioned insulation blankets and ammonia hoses that will be used to connect Tranquility to the stations cooling radiators during the missions second spacewalk.

In the grasp of the Shuttle's Remote Manipulator System (RMS) robot arm, the U.S. Laboratory, Destiny, is moved from its stowage position in the cargo bay of the Space Shuttle Atlantis. This photograph was taken by astronaut Thomas D. Jones during his Extravehicular Activity (EVA). The American-made Destiny module is the cornerstone for space-based research aboard the orbiting platform and the centerpiece of the International Space Station (ISS), where unprecedented science experiments will be performed in the near-zero gravity of space. Destiny will also serve as the command and control center for the ISS. The aluminum module is 8.5- meters (28-feet) long and 4.3-meters (14-feet) in diameter. The laboratory consists of three cylindrical sections and two endcones with hatches that will be mated to other station components. A 50.9-centimeter (20-inch-) diameter window is located on one side of the center module segment. This pressurized module is designed to accommodate pressurized payl

ISS041-E-067002 (7 Oct. 2014) --- NASA astronaut Reid Wiseman, Expedition 41 flight engineer, participates in a session of extravehicular activity (EVA) as work continues on the International Space Station. During the six-hour, 13-minute spacewalk, Wiseman and European Space Agency astronaut Alexander Gerst (out of frame), flight engineer, worked outside the space station's Quest airlock relocating a failed cooling pump to external stowage and installing gear that provides back up power to external robotics equipment.

S128-E-007229 (1 Sept. 2009) --- Astronaut Nicole Stott, Expedition 20 flight engineer, participates in the STS-128 mission's first session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 35-minute spacewalk, Stott and astronaut John Danny” Olivas (out of frame), mission specialist, removed an empty ammonia tank from the station’s truss and temporarily stowed it on the station’s robotic arm. Olivas and Stott also retrieved the European Technology Exposure Facility (EuTEF) and Materials International Space Station Experiment (MISSE) from the Columbus laboratory module and installed them on Discovery’s payload bay for return.

ISS022-E-067157 (17 Feb. 2010) --- NASA astronaut Robert Behnken, STS-130 mission specialist, participates in the missions third and final session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the five-hour, 48-minute spacewalk, Behnken and Nicholas Patrick (out of frame), mission specialist, completed all of their planned tasks, removing insulation blankets and removing launch restraint bolts from each of the Cupolas seven windows.

NASA astronaut and Expedition 66 Flight Engineer Kayla Barron smiles while peering out from a window inside the cupola, the International Space Station's "window to the world."

iss061e136533 (Jan. 20, 2020) --- NASA astronaut Christina Koch is pictured near a solar array during a spacewalk to finalize upgrading power systems on the International Space Station's Port-6 truss structure.

STS100-714-015 (22 April 2001) --- Astronauts Scott E. Parazynski (center frame) and Chris A. Hadfield (partially obscured) prepare to unpack the new Space Station Remote Manipulator System (SSRMS) or Canadarm2 during the first of two STS-100 space walks. Hadfield represents the Canadian Space Agency (CSA). The image was exposed with a 70mm camera from inside the Space Shuttle Endeavour's crew cabin.

STS109-E-5452 (4 March 2002) --- Astronauts Richard M. Linnehan (partially visible on the end of Columbia's robotic arm), STS-109 mission specialist, and John M. Grunsfeld(center frame), payload commander, work to replace the starboard solar array on the Hubble Space Telescope (HST). Linnehan works while anchored to a foot restraint connected to the shuttle's Remote Manipulator System (RMS), controlled inside the shuttle's crew cabin by astronaut Nancy J. Currie, mission specialist. The image was recorded with a digital still camera.

The Prichal docking and the Nauka multipurpose laboratory module figure prominently in this image taken during a spacewalk with cosmonauts Anton Shkaplerov (at bottom of Prichal) and Pyotr Dubrov (at top of Prichal) who outfitted both modules to integrate with the International Space Station.

iss063e052722 (July 21, 2020) --- NASA spacewalkers (from left) Bob Behnken and Chris Cassidy set up the outside of the Tranquility module for the future installation of the NanoRacks airlock.

iss070e014007 (Oct. 25, 2023) --- Expedition 70 Flight Engineer Oleg Kononenko from Roscosmos is pictured during a spacewalk to inspect a backup radiator, deploy a nanosatellite, and install communications hardware on the International Space Station's Nauka science module.

ISS028-E-016227 (12 July 2011) --- This is a high angle view showing the Cupola, backdropped against the darkness of space and Earth's horizon, and some components of the International Space Station. In some of the images in this series, faces of several of the Atlantis STS-135 and Expedition 28 crew members can be seen in the Cupola's windows.

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.

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 stations Starboard 1 truss, completing the second of a three-spacewalk coolant tank replacement process.

. iss069e018596 (June 9, 2023) - Two SpaceX Dragon vehicles are pictured docked to the International Space Station's Harmony module in this photograph taken from NASA astronaut Woody Hoburg's camera during a spacewalk. At top, is the Dragon cargo vehicle that docked to Harmony's space-facing port on June 6 with over 7,000 pounds of science experiments, crew supplies, and station hardware. Barely visible at right, is the Dragon crew vehicle that docked to Harmony's forward port on March 3 carrying four SpaceX Crew-6 crew members.

ISS028-E-005630 (27 May 2011) --- A fish-eye lens attached to an electronic still camera was used to capture this image of NASA astronaut Michael Fincke (top center) during the mission's fourth session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the seven-hour, 24-minute spacewalk, Fincke and astronaut Greg Chamitoff (out of frame), both STS-134 mission specialists, completed the primary objectives for the spacewalk, including stowing the 50-foot-long boom and adding a power and data grapple fixture to make it the Enhanced International Space Station Boom Assembly, available to extend the reach of the space station's robotic arm. The docked space shuttle Endeavour is visible at left. The blackness of space and Earths horizon provide the backdrop for the scene.

S133-E-008080 (2 March 2011) --- NASA astronaut Steve Bowen, STS-133 mission specialist, participates in the missions second session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 14-minute spacewalk, Bowen and astronaut Alvin Drew (out of frame), mission specialist, tackled a variety of tasks, including venting into space some remaining ammonia from a failed pump module they moved during the missions first spacewalk.

S127-E-007135 (20 July 2009) --- This is one of a series of digital still images showing astronaut Dave Wolf performing his second spacewalk and the Endeavours second also of the scheduled five overall in a little over a weeks time to continue work on the International Space Station. Astronauts Wolf and Tom Marshburn (out of frame), both mission specialists, successfully transferred a spare KU-band antenna to long-term storage on the space station, along with a backup coolant system pump module and a spare drive motor for the station's robot arm transporter. Installation of a television camera on the Japanese Exposed Facility experiment platform was deferred to a later spacewalk.

ISS041-E-067002 (7 Oct. 2014) --- NASA astronaut Reid Wiseman, Expedition 41 flight engineer, participates in a session of extravehicular activity (EVA) as work continues on the International Space Station. During the six-hour, 13-minute spacewalk, Wiseman and European Space Agency astronaut Alexander Gerst (out of frame), flight engineer, worked outside the space station's Quest airlock relocating a failed cooling pump to external stowage and installing gear that provides back up power to external robotics equipment.

. iss068e045203 (Feb. 2, 2023) - NASA astronaut and Expedition 68 Flight Engineer Nicole Mann is pictured in her Extravehicular Mobility Unit, or spacesuit, during her second spacewalk. She and fellow spacewalker Koichi Wakata (out of frame) of the Japan Aerospace Exploration Agency (JAXA) installed a modification kit on the International Space Station's starboard truss structure that will enable the future installation of the orbiting lab's next roll-out solar array.

ISS023-E-022870 (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 airlocks 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.

S134-E-07608 (20 May 2011) --- NASA astronaut Andrew Feustel, STS-134 mission specialist, works to install a new Materials International Space Station Experiment (MISSE) on the EXPRESS (Expedite the Processing of Experiments to Space Station) Logistics Carrier 2 (ELC2) during the first session of extravehicular activity (EVA-1) on NASA's next to last space shuttle flight.

Astronauts participate in extravehicular activity

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 stations Starboard 1 truss, completing the second of a three-spacewalk coolant tank replacement process.

ISS032-E-025272 (5 Sept. 2012) --- NASA astronaut Sunita Williams, Expedition 32 flight engineer, participates in the missions third session of extravehicular activity (EVA). During the six-hour, 28-minute spacewalk, Williams and Japan Aerospace Exploration Agency astronaut Aki Hoshide (visible in the reflections of Williams helmet visor), flight engineer, completed the installation of a Main Bus Switching Unit (MBSU) that was hampered last week by a possible misalignment and damaged threads where a bolt must be placed. They also installed a camera on the International Space Stations robotic arm, Canadarm2. The bright sun is visible at left.

S127-E-006262 (16 July 2009) --- Backdropped by a blue and white Earth and the blackness of space, a partial view of Space Shuttle Endeavours payload bay, vertical stabilizer and orbital maneuvering system (OMS) pods are featured in this image photographed by a STS-127 crew member from an aft flight deck window.

S122-E-008149 (13 Feb. 2008) --- Anchored to a foot restraint on the station's robotic Canadarm2, astronaut Rex Walheim, STS-122 mission specialist, transfers a large nitrogen tank assembly -- used for pressurizing the station's ammonia cooling system -- during the second scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station.

ISS016-E-029500 (15 Feb. 2008) --- Astronaut Rex Walheim, mission specialist, holds onto a handrail on the Columbus laboratory, the newest piece of hardware on the International Space Station. Astronaut Stanley Love (out of frame), mission specialist, shared this extravehicular activity with Walheim.

ISS023-E-047360 (17 May 2010) --- Anchored to a Canadarm2 mobile foot restraint, NASA astronaut Garrett Reisman, STS-132 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 seven-hour, 25-minute spacewalk, Reisman and NASA astronaut Steve Bowen (out of frame), mission specialist, loosened bolts holding six replacement batteries, installed a second antenna for high-speed Ku-band transmissions and adding a spare parts platform to Dextre, a two-armed extension for the stations robotic arm.

S126-E-013902 (27 Nov. 2008) --- One of Endeavour's crew members recorded this image of one of the trusses on the International Space Station as crewmembers of both the shuttle and orbital outpost prepared to go separate ways on the following day. The nine astronauts and one cosmonaut did find time to work in a Thanksgiving meal and some brief traditional ceremonies.

STS112-E-05571 (14 October 2002) --- Astronauts Piers J. Sellers (left) and David A. Wolf, STS-112 mission specialists, work on the newly installed Starboard One (S1) Truss during the third and final scheduled session of extravehicular activity (EVA) for the STS-112 mission. The spacewalk lasted 6 hours and 36 minutes.

S116-E-06571 (16 Dec. 2006) --- Astronaut Robert L. Curbeam, Jr., STS-116 mission specialist, participates in the mission's third planned session of extravehicular activity (EVA) as construction resumes on the International Space Station. Astronaut Sunita L. Williams, (out of frame), Expedition 14 flight engineer, also participated in the 7-hour, 31-minute spacewalk.

ISS043E091810 (04/07/2015) --- The International Space Stations robotic arm, Canadarm2, is poised and ready to capture SpaceXs Dragon spacecraft following a training session on Apr. 7, 2015. Dragons upcoming flight will be SpaceXs sixth resupply flight to the station and will carry more than two tons of supplies and equipment for the Expedition 43 crew.

S127-E-007179 (20 July 2009) --- This is one of a series of digital still images showing astronaut Dave Wolf performing his second spacewalk and the Endeavours second also of the scheduled five overall in a little over a weeks time to continue work on the International Space Station. Astronauts Wolf and Tom Marshburn (out of frame), both mission specialists, successfully transferred a spare KU-band antenna to long-term storage on the space station, along with a backup coolant system pump module and a spare drive motor for the station's robot arm transporter. Installation of a television camera on the Japanese Exposed Facility experiment platform was deferred to a later spacewalk.

ISS041-E-067002 (7 Oct. 2014) --- NASA astronaut Reid Wiseman, Expedition 41 flight engineer, participates in a session of extravehicular activity (EVA) as work continues on the International Space Station. During the six-hour, 13-minute spacewalk, Wiseman and European Space Agency astronaut Alexander Gerst (out of frame), flight engineer, worked outside the space station's Quest airlock relocating a failed cooling pump to external stowage and installing gear that provides back up power to external robotics equipment.

ISS041-E-067002 (7 Oct. 2014) --- NASA astronaut Reid Wiseman, Expedition 41 flight engineer, participates in a session of extravehicular activity (EVA) as work continues on the International Space Station. During the six-hour, 13-minute spacewalk, Wiseman and European Space Agency astronaut Alexander Gerst (out of frame), flight engineer, worked outside the space station's Quest airlock relocating a failed cooling pump to external stowage and installing gear that provides back up power to external robotics equipment.

ISS026-E-024392 (3 Feb. 2011) --- While attached on the end of the Canadarm2, Dextre, the Canadian Space Agencys robotic “handyman”, is featured in this image photographed by an Expedition 26 crew member aboard the International Space Station. During the activities, Dextre unpacked two critical pieces of equipment delivered by Japans Kounotori2 spacecraft.

S132-E-008929 (21 May 2010) --- NASA astronaut Michael Good, STS-132 mission specialist, is seen in near foreground during the flight's final space walk. The photograph was made through one of Atlantis' aft flight deck windows. NASA astronaut Garrett Reisman can be seen in the background.

S120-E-010978 (28 Oct. 2007) --- Astronauts Daniel Tani (left), Expedition 16 flight engineer, and Scott Parazynski, STS-120 mission specialist, participate in the second scheduled session of extravehicular activity (EVA) as construction continues on the International Space Station. During the 6-hour, 33-minute spacewalk Tani and Parazynski outfitted the Harmony module, mated the power and data grapple fixture and reconfigured connectors on the starboard 1 (S1) truss that will allow the radiator on S1 to be deployed from the ground later. Also the spacewalkers worked in tandem to disconnect cables from the P6 truss, allowing it to be removed from the Z1 truss. Tani also visually inspected the station's starboard Solar Alpha Rotary Joint (SARJ) and gathered samples of "shavings" he found under the joint's multi-layer insulation covers.

ISS028-E-016265 (12 July 2011) --- NASA astronaut Ron Garan, Expedition 28 flight engineer, egresses the Quest airlock on the International Space Station as he prepares to join crewmate Mike Fossum on a July 12 spacewalk.

STS113-307-006 (30 November 2002) --- Astronaut Michael E. Lopez-Alegria, STS-113 mission specialist, traverses along the Starboard One (S1) truss on the International Space Station (ISS) during the missions third and final scheduled spacewalk.

S124-E-006387 (5 June 2008) --- Astronaut Mike Fossum, STS-124 mission specialist, participates in the mission's second scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the seven-hour, 11-minute spacewalk, Fossum and astronaut Ron Garan (out of frame), mission specialist, installed television cameras on the front and rear of the Kibo Japanese Pressurized Module (JPM) to assist Kibo robotic arm operations, removed thermal covers from the Kibo robotic arm, prepared an upper JPM docking port for flight day seven's attachment of the Kibo logistics module, readied a spare nitrogen tank assembly for its installation during the third spacewalk, retrieved a failed television camera from the Port 1 truss, and inspected the port Solar Alpha Rotary Joint (SARJ).

S103-E-5159 (21 December 1999) --- This electronic still camera's view and others in this series showing the Hubble Space Telescope (HST) being berthed in Discovery's bay were recorded during and soon after capture; and they were downlinked at the completion of the mission's first space walk on the following day by the busy STS-103 astronauts. The image was recorded at 19:47:02 GMT, Dec. 21, 1999.

ISS038-E-036084 (27 Jan. 2014) --- Russian cosmonauts Sergey Ryazanskiy, Expedition 38 flight engineer; and Oleg Kotov (out of frame), commander, attired in Russian Orlan spacesuits, participate in a session of extravehicular activity (EVA) in support of assembly and maintenance on the International Space Station. During the six-hour, eight-minute spacewalk, Kotov and Ryazanskiy completed the installation of a pair of high fidelity cameras that experienced connectivity issues during the Dec. 27 spacewalk, and retrieved scientific gear outside the station's Russian segment.

S128-E-007706 (5 Sept. 2009) --- European Space Agency astronaut Christer Fuglesang, STS-128 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 seven-hour, one-minute spacewalk, Fuglesang and NASA astronaut John Danny” Olivas (out of frame), mission specialist, deployed the Payload Attachment System (PAS), replaced the Rate Gyro Assembly #2, installed two GPS antennae and did some work to prepare for the installation of Node 3 next year. During connection of one of two sets of avionics cables for Node 3, one of the connectors could not be mated. This cable and connector were wrapped in a protective sleeve and safed. All other cables were mated successfully.

. iss068e021452 (Nov. 9, 2022) --- The Northrop Grumman Cygnus space freighter is pictured in the grip of the Canadarm2 robotic arm as ground controllers remotely install the cargo craft to the International Space Station's Unity module. The space station was orbiting into a sunset 257 miles above the Indian Ocean off the coast of the African nation of Tanzania.

S128-E-007703 (5 Sept. 2009) --- European Space Agency astronaut Christer Fuglesang, STS-128 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 seven-hour, one-minute spacewalk, Fuglesang and NASA astronaut John Danny” Olivas (out of frame), mission specialist, deployed the Payload Attachment System (PAS), replaced the Rate Gyro Assembly #2, installed two GPS antennae and did some work to prepare for the installation of Node 3 next year. During connection of one of two sets of avionics cables for Node 3, one of the connectors could not be mated. This cable and connector were wrapped in a protective sleeve and safed. All other cables were mated successfully.

STS100-342-024 (19 April-1 May 2001) --- In the grasp of the newly installed Canadarm2, also known by its technical name, the Space Station Remote Manipulator System (SSRMS), the Spacelab pallet is carefully moved by crewmembers inside the International Space Station (ISS). Sunglint on the station's solar arrays can be seen in the background.

ISS041-E-067002 (7 Oct. 2014) --- NASA astronaut Reid Wiseman, Expedition 41 flight engineer, participates in a session of extravehicular activity (EVA) as work continues on the International Space Station. During the six-hour, 13-minute spacewalk, Wiseman and European Space Agency astronaut Alexander Gerst (out of frame), flight engineer, worked outside the space station's Quest airlock relocating a failed cooling pump to external stowage and installing gear that provides back up power to external robotics equipment.

ISS016-E-012610 (24 Nov. 2007) --- Astronaut Peggy Whitson, Expedition 16 commander, participates in a session of extravehicular activity (EVA) as construction continues on the International Space Station. During the 7-hour, 4-minute spacewalk Whitson and astronaut Daniel Tani (out of frame), flight engineer, continued the external outfitting of the Harmony node in its new position in front of the Destiny laboratory. The blackness of space and Earth's horizon provide the backdrop for the scene.

S130-E-007458 (11 Feb. 2010) --- NASA astronaut Nicholas Patrick, STS-130 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 6-hour, 32-minute spacewalk, Patrick and astronaut Robert Behnken (out of frame), mission specialist, relocated a temporary platform from the Special Purpose Dexterous Manipulator, or Dextre, to the stations truss structure and installed two handles on the robot. Once Tranquility was structurally mated to Unity, the spacewalkers connected heater and data cables that will integrate the new module with the rest of the stations systems. They also pre-positioned insulation blankets and ammonia hoses that will be used to connect Tranquility to the stations cooling radiators during the missions second spacewalk.

S117-E-07585 (15 June 2007) --- Astronauts Jim Reilly (left) and John (Danny) Olivas, both STS-117 mission specialists, are photographed by a crewmate inside the spacecraft in the midst of a 7 hour, 58-minute spacewalk. The two each performed solo and shared tasks on their second and the mission's third extravehicular activity. Olivas is holding onto a handrail on the Destiny lab.

ISS022-E-067163 (17 Feb. 2010) --- NASA astronaut Robert Behnken, STS-130 mission specialist, participates in the missions third and final session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the five-hour, 48-minute spacewalk, Behnken and Nicholas Patrick (out of frame), mission specialist, completed all of their planned tasks, removing insulation blankets and removing launch restraint bolts from each of the Cupolas seven windows.

S82-E-5307 (14 Feb. 1997) --- Astronaut Mark C. Lee, STS-82 payload commander, in Hubble Space Telescope (HST) and astronaut Steven L. Smith, mission specialist, on Remote Manipulator System (RMS) during removal of Goddard High Resolution Spectrometer (GHRS). This view was taken with an Electronic Still Camera (ESC).

STS113-307-009 (30 November 2002) --- Astronaut Michael E. Lopez-Alegria, STS-113 mission specialist, participates in the missions third spacewalk. The International Space Stations (ISS) Canadarm2 is visible in right frame.

iss048e052292 (8/6/2016) --- A view of Optical Payload for Lasercomm Science (OPALS) installed on ExPRESS (Expedite the Processing of Experiments to Space Station) Logistics Carrier-1 (ELC-1). The Optical Payload for Lasercomm Science (OPALS) aims to demonstrate optical communications technology. This is accomplished by transferring a video from hardware onboard the ISS to our ground receiver at JPLs Optical Communications Telescope Laboratory (OCTL) in Wrightwood, California.

S126-E-008239 (18 Nov. 2008) --- Astronaut Steve Bowen, STS-126 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, 52-minute spacewalk, Bowen and astronaut Heidemarie Stefanyshyn-Piper (out of frame), mission specialist, worked to clean and lubricate part of the station's starboard Solar Alpha Rotary Joints (SARJ) and to remove two of SARJ's 12 trundle bearing assemblies. The spacewalkers also removed a depleted nitrogen tank from a stowage platform on the outside of the complex and moved it into Endeavour's cargo bay. They also moved a flex hose rotary coupler from the shuttle to the station stowage platform, as well as removing some insulation blankets from the common berthing mechanism on the Kibo laboratory.

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