
Expedition 61 backup crewmembers Sergei Ryzhikov of Roscosmos, left, and Thomas Marshburn of NASA as seen during a press conference, Tuesday, Sept. 24, 2019 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 61 cosmonaut Oleg Skripochka of Roscosmos and Jessica Meir of NASA, and spaceflight participant Hazzaa Ali Almansoori of the United Arab Emirates will launch September 25th on the Soyuz MS-15 spacecraft from the Baikonur Cosmodrome to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Astronaut Edward T. Lu, Expedition 7 NASA International Space Station Science Officer and Flight Engineer, left, enjoys some hot tea with NASA Flight Surgeon Dr. Thomas H. Marshburn, center, and a Russian Medical personnel onboard a Russian helicopter in Arqalyk, Kazakhstan, Monday, October 27, 2003. Photo Credit: (NASA/Bill Ingalls)

Expedition 61 backup crewmember Thomas Marshburn of NASA is seen during a press conference, Tuesday, Sept. 24, 2019 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 61 cosmonaut Oleg Skripochka of Roscosmos and Jessica Meir of NASA, and spaceflight participant Hazzaa Ali Almansoori of the United Arab Emirates will launch September 25th on the Soyuz MS-15 spacecraft from the Baikonur Cosmodrome to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Astronaut Edward T. Lu, Expedition 7 NASA International Space Station Science Officer and Flight Engineer, rests in a chair after landing in the Soyuz TMA-2 spacecraft in Kazakhstan on Monday, October 27, 2003 at 9:41 p.m. (EST). On the left is NASA Flight Surgeon Dr. Thomas H. Marshburn. Photo Credit: (NASA/Bill Ingalls)

Expedition 61 backup crewmember Thomas Marshburn of NASA is blessed by a Russian Orthodox Priest in the Cosmonaut Hotel Wednesday, Sept. 25, 2019 in Baikonur, Kazakhstan. Expedition 61 prime crewmembers Jessica Meir of NASA and Oleg Skripochka of Roscosmos, and spaceflight participant Hazzaa Ali Almansoori of the United Arab Emirates will launch later in the day on the Soyuz MS-15 spacecraft from the Baikonur Cosmodrome to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Dr. Thomas H. Marshburn, NASA Flight Surgeon, center, is helped to a Russian helicopter by interpreter Paul Kharmats, far left, astronaut James H. Newman and NASA International Space Station Program Manager William Gerstenmaier, right. Dr. Marshburn was on one of four helicopters that were advanced to Arkalyk, Kazakhstan a day prior to the Expedition 7 Soyuz landing, Monday, October 27, 2003. Photo Credit: (NASA/Bill Ingalls)

STS-127 Commander Mark Polansky, at podium, speaks to White House interns at the Eisenhower Executiive Office Building in Washington, Thursday, Sept. 24, 2009. Seated from left are crew members Christopher Cassidy, David Wolf, Julie Payette, Douglas Hurley and Thomas Marshburn. Photo Credit: (NASA/Paul E. Alers)

STS-127 Commander Mark Polansky, at podium, speaks to White House interns at the Eisenhower Executiive Office Building in Washington, Thursday, Sept. 24, 2009. Seated from left are crew members Christopher Cassidy, David Wolf, Julie Payette, Douglas Hurley and Thomas Marshburn. Photo Credit: (NASA/Paul E. Alers)

STS-127 Commander Mark Polansky, at podium, speaks to White House interns at the Eisenhower Executiive Office Building in Washington, Thursday, Sept. 24, 2009. Seated from left are crew members Christopher Cassidy, David Wolf, Douglas Hurley and Thomas Marshburn. Photo Credit: (NASA/Paul E. Alers)

The Soyuz rocket is reflected in the glasses of Expedition 61 backup crew member Thomas Marshburn of NASA shortly after it was rolled out by train to the launch pad, Monday, Sept. 23, 2019 at the Baikonur Cosmodrome in Kazakhstan. Expedition 61 crewmembers Jessica Meir of NASA and Oleg Skripochka of Roscosmos, and spaceflight participant Hazzaa Ali Almansoori of the United Arab Emirates will launch September 25th on the Soyuz MS-15 spacecraft from the Baikonur Cosmodrome to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 60 backup crew member Thomas Marshburn of NASA is seen in quarantine, behind glass, during a press conference, Friday, July 19, 2019 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 60 Soyuz Commander Alexander Skvortsov of Roscosmos, flight engineer Andrew Morgan of NASA, and flight engineer Luca Parmitano of ESA (European Space Agency) are scheduled to launch to the International Space Station aboard the Soyuz MS-13 spacecraft at 12:28 p.m. Eastern time (9:28 p.m. Baikonur time) on Saturday, July 20. Photo Credit: (NASA/Joel Kowsky)

Canadian Space Agency astronaut Julie Payette, a mission specialist on STS-127, at podium, speaks to White House interns at the Eisenhower Executiive Office Building in Washington, Thursday, Sept. 24, 2009. Seated from left are crew members Christopher Cassidy, David Wolf, Mark Polansky, Douglas Hurley and Thomas Marshburn. Photo Credit: (NASA/Paul E. Alers)

STS-127 Commander Mark Polansky, standing left, talks about the recent mission to White House interns at the Eisenhower Executiive Office Building in Washington, Thursday, Sept. 24, 2009. Seated from left are crew members Julie Payette, Christopher Cassidy, David Wolf, Douglas Hurley and Thomas Marshburn. Photo Credit: (NASA/Paul E. Alers)

STS-127 Commander Mark Polansky, at podium, and crew member David Wolf, standing right, answer questions from White House interns at the Eisenhower Executiive Office Building in Washington, Thursday, Sept. 24, 2009. Seated from left are crew members Christopher Cassidy, Douglas Hurley and Thomas Marshburn. Photo Credit: (NASA/Paul E. Alers)

Expedition 7 Commander, Yuri I. Malenchenko, second from left, facing camera, NASA International Space Station Science Officer and Flight Engineer, Edward T. Lu, center, and prime crew Flight Surgeon Thomas Marshburn eat dinner at the Cosmonaut Hotel along with the backup crew members, astronaut Michael Foale, left, back to camera, cosmonaut Alexander Kaleri, center, back to camera, and an unidentified Russian flight surgeon in Baikonur, Kazakhstan, Wednesday, April 9, 2003. Photo Credit: (NASA/Bill Ingalls)

jsc2021e030975_alt (July 28, 2021) --- Portrait of NASA astronaut Thomas Marshburn.

jsc2021e030957_alt (July 28, 2021) --- Portrait of NASA astronaut Thomas Marshburn.

Expedition 60 backup crew members Sergey Ryzhikov of Roscosmos, left, and Thomas Marshburn of NASA, right, are seen in quarantine, behind glass, during a press conference, Friday, July 19, 2019 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 60 Soyuz Commander Alexander Skvortsov of Roscosmos, flight engineer Andrew Morgan of NASA, and flight engineer Luca Parmitano of ESA (European Space Agency) are scheduled to launch to the International Space Station aboard the Soyuz MS-13 spacecraft at 12:28 p.m. Eastern time (9:28 p.m. Baikonur time) on Saturday, July 20. Photo Credit: (NASA/Joel Kowsky)

Expedition 60 backup crew members Thomas Marshburn of NASA, left, Sergey Ryzhikov of Roscosmos, center, and Soichi Noguchi of the Japan Aerospace Exploration Agency (JAXA), right, pose for a picture on the launch pad as the Soyuz rocket arrives at the launch pad by train, Thursday, July 18, 2019 at the Baikonur Cosmodrome in Kazakhstan. Expedition 60 Soyuz Commander Alexander Skvortsov of Roscosmos, flight engineer Andrew Morgan of NASA, and flight engineer Luca Parmitano of ESA (European Space Agency) are scheduled to launch aboard their Soyuz MS-13 spacecraft at 12:28 p.m. Eastern time (9:28 p.m. Baikonur time) , on Saturday, July 20. Photo Credit: (NASA/Joel Kowsky)

Backup spaceflight participant Sultan Al-Neyadi of the United Arab Emirates, left, and Expedition 61 backup crewmembers Sergei Ryzhikov of Roscosmos and Thomas Marshburn of NASA, pose for a photograph as the Soyuz rocket is rolled out by train to the launch pad, Monday, Sept. 23, 2019 at the Baikonur Cosmodrome in Kazakhstan. Expedition 61 crewmembers Jessica Meir of NASA and Oleg Skripochka of Roscosmos, and spaceflight participant Hazzaa Ali Almansoori of the United Arab Emirates will launch September 25th on the Soyuz MS-15 spacecraft from the Baikonur Cosmodrome to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Spaceflight participant Hazzaa Ali Almansoori of the United Arab Emirates , left, Expedition 61 prime crew members Oleg Skripochka of Roscosmos and Jessica Meir of NASA, are seen with backup crew members spaceflight participant Sultan Al-Neyadi of the United Arab Emirates, Sergei Ryzhikov of Roscosmos and Thomas Marshburn of NASA, during the State Commission meeting to approve the crew's Soyuz launch to the International Space Station, Tuesday, Sept. 24, 2019 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Meir, Skripochka and Almansoori will launch September 25th on the Soyuz MS-15 spacecraft from the Baikonur Cosmodrome to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Spaceflight participant Hazzaa Ali Almansoori of the United Arab Emirates, left, Expedition 61 prime crewmembers Oleg Skripochka of Roscosmos and Jessica Meir of NASA, are seen with backup crew members paceflight participant Sultan Al-Neyadi of the United Arab Emirates, Sergei Ryzhikov of Roscosmos and Thomas Marshburn of NASA at the conclusion of a press conference, Tuesday, Sept. 24, 2019 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Meir, Skripochka, and Almansoori will launch September 25th on the Soyuz MS-15 spacecraft from the Baikonur Cosmodrome to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

A guest takes a selfie with backup spaceflight participant Sultan Al-Neyadi of the United Arab Emirates, left, and Expedition 61 backup crewmembers Sergei Ryzhikov of Roscosmos and Thomas Marshburn of NASA, as the Soyuz rocket is rolled out by train to the launch pad, Monday, Sept. 23, 2019 at the Baikonur Cosmodrome in Kazakhstan. Expedition 61 crewmembers Jessica Meir of NASA and Oleg Skripochka of Roscosmos, and spaceflight participant Hazzaa Ali Almansoori of the United Arab Emirates will launch September 25th on the Soyuz MS-15 spacecraft from the Baikonur Cosmodrome to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Spaceflight participant Hazzaa Ali Almansoori of the United Arab Emirates, left, Expedition 61 prime crewmembers Oleg Skripochka of Roscosmos and Jessica Meir of NASA, are seen with backup crew members paceflight participant Sultan Al-Neyadi of the United Arab Emirates, Sergei Ryzhikov of Roscosmos and Thomas Marshburn of NASA at the conclusion of a press conference, Tuesday, Sept. 24, 2019 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Meir, Skripochka, and Almansoori will launch September 25th on the Soyuz MS-15 spacecraft from the Baikonur Cosmodrome to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

JOHNSON SPACE CENTER, Houston -- JSC2008-E-139777 (21 Oct. 2008) --- Astronaut Thomas H. Marshburn, mission specialist

jsc2021e019568_alt (May 10, 2021) --- NASA astronaut and SpaceX Crew-3 Pilot Thomas Marshburn poses for a portrait at Johnson Space Center in Houston, Texas.

Expedition 60 backup crew members Thomas Marshburn of NASA, left, Soichi Noguchi of the Japan Aerospace Exploration Agency (JAXA), center, and Sergey Ryzhikov of Roscosmos, right, are seen as prime crew members Alexander Skvortsov of Roscosmos, Andrew Morgan of NASA, and Luca Parmitano of ESA (European Space Agency) have their Russian Sokol suits pressure checked in preparation for launch aboard the Soyuz MS-13 spacecraft, Saturday, July 20, 2019 at the Baikonur Cosmodrome in Kazakhstan. Skvortsov, Morgan, and Parmitano launched aboard the Soyuz MS-13 spacecraft at 12:28 p.m. Eastern time (9:28 p.m. Baikonur time) on July 20 to begin their journey to the International Space Station. Photo Credit: (NASA/Joel Kowsky)

Date: 03-09-12 Location: Ellington Field Subject: Expedition 35 (Soyuz 33S) crew member Tom Marshburn preparing for his T-38 fligh with NASA pilot Thomas Parent. Photographer: James Blair

jsc2021e009510 (March 3, 2021) --- SpaceX Crew-3 astronauts (from left) Thomas Marshburn and Kayla Barron are pictured during a training session at the Space Vehicle Mockup Facility at NASA's Johnson Space Center in Houston, Texas.

iss066e086655 (Dec. 6, 2021) --- NASA astronaut and Expedition 66 Flight Engineer Thomas Marshburn sets up hardware for the Vascular Echo human research study that examines the cardiovascular changes that take place in microgravity.

Date: 03-09-12 Location: Ellington Field Subject: Expedition 35 (Soyuz 33S) crew member Tom Marshburn preparing for his T-38 fligh with NASA pilot Thomas Parent. Photographer: James Blair

jsc2021e044838 (Sept. 28, 2021) --- Astronaut Thomas Marshburn of NASA's Commercial Crew Program, SpaceX Crew-3 Pilot, poses for a portrait in his pressure suit at SpaceX headquarters in Hawthorne, California. Credit: SpaceX

iss066e109471 (Jan. 7, 2022) --- NASA astronaut and Expedition 66 Flight Engineer Thomas Marshburn peers out from a window inside the cupola, the International Space Station's "window to the world."

jsc2021e038362 (Aug. 25, 2021) --- NASA astronaut and SpaceX Crew-3 Pilot Thomas Marshburn is pictured during preflight training at SpaceX headquarters in Hawthorne, California. Credit: SpaceX

iss066e079009 (Nov. 22, 2021) --- NASA astronaut and Expedition 66 Flight Engineer Thomas Marshburn collects potable water samples from inside the International Space Station's U.S. Destiny laboratory module for later analysis.

jsc2021e019138 (May 12, 2021) --- SpaceX Crew-3 astronauts Thomas Marshburn and Kayla Barron prepare for spacewalk training at the Neutral Buoyancy Laboratory at NASA's Johnson Space Center in Houston, Texas.

iss066e109475 (Jan. 7, 2022) --- Expedition 66 Flight Engineer Thomas Marshburn of NASA and Commander Anton Shkaplerov of Roscosmos peer out from windows inside the cupola, the International Space Station's "window to the world."

jsc2019e043008 (June 7, 2019) --- NASA astronaut and backup Expedition 61-62 crewmember Thomas Marshburn poses for a portrait at the Gagarin Cosmonaut Training Center in Star City, Russia.

JSC2008-E-047934 (19 June 2008) --- Astronaut Thomas H. Marshburn, STS-127 mission specialist, participates in a food tasting session in the Flight Projects Division Laboratory at NASA's Johnson Space Center.

jsc2021e042601 (Aug. 16, 2021) --- NASA astronaut and SpaceX Crew-3 Pilot Thomas Marshburn is pictured in his spacesuit during a training session at SpaceX headquarters in Hawthorns, California. Credit: SpaceX

Date: 03-09-12 Location: Ellington Field Subject: Expedition 35 (Soyuz 33S) crew member Tom Marshburn preparing for his T-38 fligh with NASA pilot Thomas Parent. Photographer: James Blair

SpaceX Crew-3 astronauts Raja Chari, Thomas Marshburn, Matthias Maurer and Kayla Barron departing Ellington Field, Houston, Texas for their launch at KSC. Photo Date: October 26, 2021. Photographer: Robert Markowitz

iss066e101967 (Jan. 3, 2022) --- NASA astronaut and Expedition 66 Flight Engineer Thomas Marshburn is pictured cleaning the ventilation system inside the International Space Station's Tranquility module.

jsc2021e038357 (May 18, 2021) --- The pilot and commander for the SpaceX Crew-3 mission, NASA astronauts Thomas Marshburn (background) and Raja Chari, are pictured during preflight training at SpaceX headquarters in Hawthorne, California. Credit: SpaceX

Date: 03-09-12 Location: Ellington Field Subject: Expedition 35 (Soyuz 33S) crew member Tom Marshburn preparing for his T-38 fligh with NASA pilot Thomas Parent. Photographer: James Blair

iss066e138146 (Feb. 9, 2022) --- From left, NASA's Expedition 66 Flight Engineers Thomas Marshburn and Mark Vande Hei pose for a portrait inside the International Space Station's Kibo laboratory module.

Date: 03-09-12 Location: Ellington Field Subject: Expedition 35 (Soyuz 33S) crew member Tom Marshburn preparing for his T-38 fligh with NASA pilot Thomas Parent. Photographer: James Blair

jsc2021e023379 (June 18, 2021) ---SpaceX Crew-3 astronauts (from left) Thomas Marshburn, Kayla Barron and Raja Chari train at the Space Vehicle Mockup Facility at NASA's Johnson Space Center in Houston, Texas.

jsc2021e038355 (May 18, 2021) --- NASA astronaut and SpaceX Crew-3 Pilot Thomas Marshburn is pictured during preflight training at SpaceX headquarters in Hawthorne, California. Credit: SpaceX

iss066e133931 (Feb. 2, 2022) --- NASA astronaut and Expedition 66 Flight Engineer Thomas Marshburn poses for a portrait inside the Unity module during his lunch period aboard the International Space Station.

Date: 03-09-12 Location: Ellington Field Subject: Expedition 35 (Soyuz 33S) crew member Tom Marshburn preparing for his T-38 fligh with NASA pilot Thomas Parent. Photographer: James Blair

iss066e084502 (Nov. 30, 2021) --- NASA astronauts and Expedition 66 Flight Engineers Thomas Marshburn and Mark Vande Hei examine an empty Advanced Plant Habitat inside the International Space Station's Kibo laboratory module..

jsc2021e038367 (July 26, 2021) --- SpaceX Crew-3 astronauts (from left) Matthias Maurer, Thomas Marshburn, Raja Chari and Kayla Barron are pictured during preflight training at SpaceX headquarters in Hawthorne, California. Credit: SpaceX

jsc2021e038356 (May 18, 2021) --- The pilot and commander for the SpaceX Crew-3 mission, NASA astronauts Thomas Marshburn (background) and Raja Chari, are pictured during preflight training at SpaceX headquarters in Hawthorne, California. Credit: SpaceX

jsc2021e043289 (Aug. 16, 2021) --- NASA astronaut and SpaceX Crew-3 Pilot Thomas Marshburn is pictured in his spacesuit during a training session at SpaceX headquarters in Hawthorns, California. Credit: SpaceX

jsc2021e043288 (Aug. 16, 2021) --- NASA astronaut and SpaceX Crew-3 Pilot Thomas Marshburn is pictured in his spacesuit during a training session at SpaceX headquarters in Hawthorns, California. Credit: SpaceX

Date: 03-09-12 Location: Ellington Field Subject: Expedition 35 (Soyuz 33S) crew member Tom Marshburn preparing for his T-38 fligh with NASA pilot Thomas Parent. Photographer: James Blair

jsc2021e042602 (Aug. 16, 2021) --- NASA astronaut and SpaceX Crew-3 Pilot Thomas Marshburn is pictured in his spacesuit during a training session at SpaceX headquarters in Hawthorns, California. Credit: SpaceX

iss066e019166 (Oct. 28, 2021) --- A pair of U.S. spacesuits are pictured inside the International Space Station's U.S. Quest airlock ready for an upcoming spacewalk to be conducted by NASA astronauts Thomas Marshburn and Kayla Barron.

iss066e082988 (Nov. 24, 2021) --- NASA astronauts and Expedition 66 Flight Engineers Thomas Marshburn and Kayla Barron work on U.S. spacesuits inside the International Space Station's Quest airlock.

jsc2021e038368 (July 26, 2021) --- SpaceX Crew-3 astronauts (from left) Raja Chari, Kayla Barron, Matthias Maurer and Thomas Marshburn are pictured during preflight training at SpaceX headquarters in Hawthorne, California. Credit: SpaceX

iss066e138134 (Feb. 9, 2022) --- From left, NASA's Expedition 66 Flight Engineers Thomas Marshburn, Raja Chari and Mark Vande Hei pose for a portrait inside the International Space Station's Kibo laboratory module.

Date: 03-09-12 Location: Ellington Field Subject: Expedition 35 (Soyuz 33S) crew member Tom Marshburn preparing for his T-38 fligh with NASA pilot Thomas Parent. Photographer: James Blair

jsc2021e042600 (Aug. 16, 2021) --- NASA astronaut and SpaceX Crew-3 Pilot Thomas Marshburn is pictured in his spacesuit during a training session at SpaceX headquarters in Hawthorns, California. Credit: SpaceX

Expedition 60 prime crew members flight engineer Andrew Morgan of NASA, left, Soyuz Commander Alexander Skvortsov of Roscosmos, second from left, and flight engineer Luca Parmitano of ESA (European Space Agency), third from left, are seen with backup crew members Soichi Noguchi of the Japan Aerospace Exploration Agency (JAXA), third from right, Sergey Ryzhikov of Roscosmos, second from right, and Thomas Marshburn of NASA, right, during the State Commission meeting to approve the Soyuz launch of Expedition 60 to the International Space Station, Friday, July 19, 2019 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 60 Soyuz Commander Alexander Skvortsov of Roscosmos, Andrew Morgan of NASA, and Luca Parmitano of ESA (European Space Agency) are scheduled to launch to the International Space Station aboard the Soyuz MS-13 spacecraft on Saturday, July 20. Photo Credit: (NASA/Joel Kowsky)

jsc2021e046405 (Oct. 9, 2021) --- The astronauts of SpaceX Crew-3 pose for a portrait in their suits during a training session. From left are, ESA (European Space Agency) astronaut Matthias Maurer and NASA astronauts Thomas Marshburn, Raja Chari and Kayla Barron. Chari is Commander, Marshburn is the Pilot, and Barron and Maurer are both Mission Specialists. Credit: SpaceX

iss066e077795 (Nov. 16, 2021) --- From left, Flight Engineers Thomas Marshburn, Kayla Barron and Matthias Maurer review spacewalk procedures. NASA astronauts Marshburn and Barron are scheduled to conduct a six-and-a-half-hour spacewalk to replace an antenna system on the International Space Station's Port-1 truss structure. ESA (European Space Agency) astronaut Maurer will operate the Canadarm2 robotic arm assisting the two spacewalkers.

jsc2021e046402 (Oct. 9, 2021) --- The astronauts of SpaceX Crew-3 pose for a portrait in their suits during a training session. From left are, ESA (European Space Agency) astronaut Matthias Maurer and NASA astronauts Thomas Marshburn, Raja Chari and Kayla Barron. Chari is Commander, Marshburn is the Pilot, and Barron and Maurer are both Mission Specialists. Credit: SpaceX

iss066e085461 (Dec. 2, 2021) --- This view from NASA spacewalker Thomas Marshburn's camera points downward toward the International Space Station with the Earth 265 miles below him. Marshburn was attached to the Canadarm2 robotic arm during a six-hour and 32 minute spacewalk to replace a failed antenna system on the orbiting lab's Port-1 truss structure.

jsc2021e046404 (Oct. 9, 2021) --- The astronauts of SpaceX Crew-3 pose for a portrait in their suits during a training session inside the SpaceX Crew Dragon spacecraft. From left are, ESA (European Space Agency) astronaut Matthias Maurer and NASA astronauts Raja Chari, Thomas Marshburn and Kayla Barron. Chari is Commander, Marshburn is the Pilot and Barron and Maurer are both Mission Specialists. Credit: SpaceX

jsc2021e046403 (Oct. 9, 2021) --- The astronauts of SpaceX Crew-3 pose for a portrait in their suits during a training session. From left are, NASA astronauts Kayla Barron, Raja Chari and Thomas Marshburn, and ESA (European Space Agency) astronaut Matthias Maurer. Chari is Commander, Marshburn is the Pilot, and Barron and Maurer are both Mission Specialists. Credit: SpaceX

iss066e085095 (Dec. 2, 2021) --- NASA spacewalker Thomas Marshburn is pictured attached to the tip of the Canadarm2 robotic arm during a six-hour and 32 minute spacewalk to replace a failed antenna system on the International Space Station's Port-1 truss structure.

PHOTO DATE: 20 July 2012 LOCATION: Bldg. 7, SSATA Chamber SUBJECT: Expedition 34/35 astronaut Tom Marshburn during SSATA EMU training and certification - Dry Run. Test Directors Gretchen Thomas, Christina Anchondo and Joel Maganza. STB-ST-962 PHOTOGRAPHER: Mark Sowa

jsc2021e038354 (May 6, 2021) --- SpaceX Crew-3 astronauts (from left) Matthias Maurer, Thomas Marshburn, Raja Chari and Kayla Barron pose for a portrait during preflight training at SpaceX headquarters in Hawthorne, California. Credit: SpaceX

iss066e083008 (Nov. 25, 2021) --- Expedition 66 crew members gather for a Thanksgiving meal inside the International Space Station's Unity module. From left, are NASA astronaut Thomas Marshburn with Roscosmos cosmonauts Anton Shkaplerov and Pyotr Dubrov.

iss066e078589 (Nov. 18, 2021) --- NASA astronaut Mark Vande Hei assists NASA spacewalker Thomas Marshburn in the U.S. Quest airlock before the beginning of a six-hour and 32-minute spacewalk to replace a faulty antenna system on the International Space Station's Port-1 truss structure.

jsc2021e009537 (March 3, 2021) --- SpaceX Crew-3 astronauts (from left) Matthias Maurer, Thomas Marshburn and Kayla Barron are pictured during a training session at the Space Vehicle Mockup Facility at NASA's Johnson Space Center in Houston, Texas.

PHOTO DATE: 20 July 2012 LOCATION: Bldg. 7, SSATA Chamber SUBJECT: Expedition 34/35 astronaut Tom Marshburn during SSATA EMU training and certification - Dry Run. Test Directors Gretchen Thomas, Christina Anchondo and Joel Maganza. STB-ST-962 PHOTOGRAPHER: Mark Sowa

jsc2021e038371 (July 26, 2021) --- SpaceX Crew-3 astronauts (from left) Thomas Marshburn, Matthias Maurer, Kayla Barron and Raja Chari are pictured during preflight training at NASA's Kennedy Space Center in Florida. Credit: SpaceX

iss067e003872 (April 6, 2022) --- NASA astronaut and Expedition 67 Commander Thomas Marshburn configures the Combustion Integrated Rack's combustion chamber for the Solid Fuel Ignition and Extinction study to investigate material flammability and ways to improve fire safety in space.

iss066e084306 (Nov. 26, 2021) --- NASA astronaut and Expedition 66 Flight Engineer Thomas Marshburn checks out chile peppers growing inside the International Space Station's Advanced Plant Habitat before they were harvested for the Plant Habitat-04 space botany experiment.

PHOTO DATE: 20 July 2012 LOCATION: Bldg. 7, SSATA Chamber SUBJECT: Expedition 34/35 astronaut Tom Marshburn during SSATA EMU training and certification - Dry Run. Test Directors Gretchen Thomas, Christina Anchondo and Joel Maganza. STB-ST-962 PHOTOGRAPHER: Mark Sowa

iss066e095334 (Dec. 22, 2021) --- NASA astronaut and Expedition 66 Flight Engineer Thomas Marshburn looks out of the cupola's main window at the approaching SpaceX Cargo Dragon vehicle as the International Space Station orbited 265 miles above northern Ukraine.

jsc2021e038372 (July 26, 2021) --- SpaceX Crew-3 astronauts (from left) Matthias Maurer, Thomas Marshburn, Raja Chari and Kayla Barron are pictured during preflight training at NASA's Kennedy Space Center in Florida. Credit: SpaceX

iss066e093684 (Dec. 20, 2021) --- Clockwise from bottom, are NASA astronauts Raja Chari, Kayla Barron and Thomas Marshburn with ESA (European Space Agency) astronaut Matthias Maurer are pictured during a playful portrait aboard the International Space Station.

jsc2021e038373 (July 26, 2021) --- SpaceX Crew-3 astronauts (from left) Matthias Maurer, Thomas Marshburn, Raja Chari and Kayla Barron are pictured during preflight training at NASA's Kennedy Space Center in Florida. Credit: SpaceX

iss067e003895 (April 6, 2022) --- NASA astronaut and Expedition 67 Commander Thomas Marshburn configures the Combustion Integrated Rack's combustion chamber for the Solid Fuel Ignition and Extinction study to investigate material flammability and ways to improve fire safety in space.

jsc2019e043007 (June 7, 2019) --- (From left) Backup Roscosmos spaceflight participant Sultan al-Neyadi of the United Arab Emirates and backup Expedition 61-62 crewmembers cosmonaut Sergey Ryzhikov of Roscosmos and NASA astronaut Thomas Marshburn pose for a crew portrait at the Gagarin Cosmonaut Training Center in Star City, Russia.

jsc2021e038353 (May 6, 2021) --- SpaceX Crew-3 astronauts (from left) Matthias Maurer, Thomas Marshburn, Raja Chari and Kayla Barron pose for a portrait during preflight training at SpaceX headquarters in Hawthorne, California. Credit: SpaceX

PHOTO DATE: 20 July 2012 LOCATION: Bldg. 7, SSATA Chamber SUBJECT: Expedition 34/35 astronaut Tom Marshburn during SSATA EMU training and certification - Dry Run. Test Directors Gretchen Thomas, Christina Anchondo and Joel Maganza. STB-ST-962 PHOTOGRAPHER: Mark Sowa

PHOTO DATE: 20 July 2012 LOCATION: Bldg. 7, SSATA Chamber SUBJECT: Expedition 34/35 astronaut Tom Marshburn during SSATA EMU training and certification - Dry Run. Test Directors Gretchen Thomas, Christina Anchondo and Joel Maganza. STB-ST-962 PHOTOGRAPHER: Mark Sowa

iss066e081635 (Nov. 21, 2021) --- Clockwise from bottom left are, International Space Station Commander Anton Shkaplerov of Roscosmos; NASA astronauts and Expedition Flight Engineers Raja Chari, Mark Vande Hei and Thomas Marshburn; and Roscosmos cosmonaut and Expedition 66 Flight Engineer Pyotr Dubrov.

iss066e078592 (Nov. 18, 2021) --- NASA astronaut Mark Vande Hei assists NASA astronauts (from left) Kayla Barron and Thomas Marshburn in the U.S. Quest airlock before the beginning of a six-hour and 32-minute spacewalk to replace a faulty antenna system on the International Space Station's Port-1 truss structure.

PHOTO DATE: 20 July 2012 LOCATION: Bldg. 7, SSATA Chamber SUBJECT: Expedition 34/35 astronaut Tom Marshburn during SSATA EMU training and certification - Dry Run. Test Directors Gretchen Thomas, Christina Anchondo and Joel Maganza. STB-ST-962 PHOTOGRAPHER: Mark Sowa

PHOTO DATE: 20 July 2012 LOCATION: Bldg. 7, SSATA Chamber SUBJECT: Expedition 34/35 astronaut Tom Marshburn during SSATA EMU training and certification - Dry Run. Test Directors Gretchen Thomas, Christina Anchondo and Joel Maganza. STB-ST-962 PHOTOGRAPHER: Mark Sowa

PHOTO DATE: 20 July 2012 LOCATION: Bldg. 7, SSATA Chamber SUBJECT: Expedition 34/35 astronaut Tom Marshburn during SSATA EMU training and certification - Dry Run. Test Directors Gretchen Thomas, Christina Anchondo and Joel Maganza. STB-ST-962 PHOTOGRAPHER: Mark Sowa

jsc2021e038370 (July 26, 2021) --- SpaceX Crew-3 astronauts (from left) Raja Chari, Kayla Barron, Matthias Maurer and Thomas Marshburn are pictured during preflight training at NASA's Kennedy Space Center in Florida. Credit: SpaceX

jsc2021e023380 (June 18, 2021) --- SpaceX Crew-3 astronauts (from left) Matthias Maurer, Thomas Marshburn, Kayla Barron and Raja Chari train at the Space Vehicle Mockup Facility at NASA's Johnson Space Center in Houston, Texas.

PHOTO DATE: 20 July 2012 LOCATION: Bldg. 7, SSATA Chamber SUBJECT: Expedition 34/35 astronaut Tom Marshburn during SSATA EMU training and certification - Dry Run. Test Directors Gretchen Thomas, Christina Anchondo and Joel Maganza. STB-ST-962 PHOTOGRAPHER: Mark Sowa

PHOTO DATE: 20 July 2012 LOCATION: Bldg. 7, SSATA Chamber SUBJECT: Expedition 34/35 astronaut Tom Marshburn during SSATA EMU training and certification - Dry Run. Test Directors Gretchen Thomas, Christina Anchondo and Joel Maganza. STB-ST-962 PHOTOGRAPHER: Mark Sowa