jsc2025e034096 (Feb. 3, 2025) --- Roscosmos cosmonaut and Soyuz MS-27 Commander Sergey Ryzhikov poses for a portrait in his Sokol launch and entry suit at the Gagarin Cosmonaut Training Center in Star City, Russia

jsc2025e033526 (April 23, 2025) --- Roscosmos cosmonaut and Soyuz MS-27 Commander Sergey Ryzhikov poses for a portrait in his Sokol launch and entry suit at the Gagarin Cosmonaut Training Center in Star City, Russia.

iss073e0704036 (Sept. 18, 2025) --- Roscosmos cosmonaut and Expedition 73 Commander Sergey Ryzhikov smiles for a portrait while inspecting an Orlan spacesuit inside the International Space Station's Poisk module.

iss073e0658312 (Sept. 10, 2025) --- Roscosmos cosmonaut and Expedition 73 Commander Sergey Ryzhikov holds a headset inside the International Space Station's Quest airlock. Ryzhikov was conducting a hearing examination frequently conducted inside Quest due to the module's quiet environment. Quest is used primarily to service spacesuits and stage spacewalks.

iss073e0547544 (Aug. 27, 2025) --- Roscosmos cosmonaut and Expedition 73 Commander Sergey Ryzhikov is pictured during electronics maintenance at the beginning of his shift aboard the International Space Station.

iss073e0880941 (Oct. 16, 2025) --- Roscosmos cosmonauts (from left) Sergey Ryzhikov and Alexey Zubritsky are pictured inside the International Space Station's Zvezda service module dressing up and preparing for a spacewalk. The duo would install a semiconductor materials experiment, remove a high-resolution camera monoblock, clean a window on the Zvezda service module, and remove a materials exposure experiment container during the six-hour and nine-minute excursion.

iss073e0981126 (Oct. 16, 2025) --- Roscosmos cosmonaut Sergey Ryzhikov is pictured attached to the end effector of the European robotic arm, holding the high-resolution camera (HRC) monoblock he removed during a six-hour and nine-minute spacewalk outside the International Space Station's Roscosmos segment. The HRC monoblock is part of a scientific optical telescope system designed to test compact radio-optical detectors for Earth observation, ecological monitoring, and emergency response.

iss072e940013 (April 8, 2025) --- Roscosmos cosmonaut and Expedition 72 Flight Engineer Sergey Ryzhikov enters the International Space Station shortly after docking to the Prichal module aboard the Soyuz MS-27 spacecraft. Ryzhikov is greeted by station Commander Alexey Ovchinin of Roscosmos (left) and flight engineers Takuya Onishi of JAXA (Japan Aerospace Exploration Agency), at right, and Don Pettit of NASA (far right).

iss073e0257845 (July 8, 2025) --- Roscosmos cosmonaut and Expedition 73 Flight Engineer Sergey Ryzhikov poses for a playful portrait in the Zvezda service module seemingly holding its treadmill above his head aboard the International Space Station. Ryzhikov was working on treadmill maintenance inspecting, removing, and replacing components on the exercise device. Credit: Roscosmos

Expedition 64 Roscosmos cosmonaut Sergey Ryzhikov is helped out of the Soyuz MS-17 spacecraft just minutes after he, Roscosmos cosmonaut Sergey Kud-Sverchkov, and NASA astronaut Kate Rubins landed in a remote area near the town of Zhezkazgan, Kazakhstan on Saturday, April 17, 2021. Rubins, Ryzhikov and Kud-Sverchkov returned after 185 days in space having served as Expedition 63-64 crew members onboard the International Space Station. Photo Credit: NASA/Bill Ingalls

Expedition 64 Roscosmos cosmonaut Sergey Ryzhikov is seen outside the Soyuz MS-17 spacecraft after he, Roscosmos cosmonaut Sergey Kud-Sverchkov, and NASA astronaut Kate Rubins landed in a remote area near the town of Zhezkazgan, Kazakhstan on Saturday, April 17, 2021. Rubins, Ryzhikov and Kud-Sverchkov returned after 185 days in space having served as Expedition 63-64 crew members onboard the International Space Station. Photo Credit: NASA/Bill Ingalls

Expedition 64 Roscosmos cosmonaut Sergey Ryzhikov is carried to a medical tent shortly after he, NASA astronaut Kate Rubins, and Roscosmos cosmonaut Sergey Kud-Sverchkov landed in their Soyuz MS-17 spacecraft near the town of Zhezkazgan, Kazakhstan on Saturday, April 17, 2021. Rubins, Ryzhikov and Kud-Sverchkov returned after 185 days in space having served as Expedition 63-64 crew members onboard the International Space Station. Photo Credit: NASA/Bill Ingalls

Expedition 64 Roscosmos cosmonaut Sergey Ryzhikov is helped out of the Soyuz MS-17 spacecraft just minutes after he, Roscosmos cosmonaut Sergey Kud-Sverchkov, and NASA astronaut Kate Rubins landed in a remote area near the town of Zhezkazgan, Kazakhstan on Saturday, April 17, 2021. Rubins, Ryzhikov and Kud-Sverchkov returned after 185 days in space having served as Expedition 63-64 crew members onboard the International Space Station. Photo Credit: NASA/Bill Ingalls

Expedition 64 Russian cosmonauts Sergey Ryzhikov, back, and Sergey Kud-Sverchkov of Roscosmos, front, take part in tilt table training, Tuesday, Oct. 6, 2020, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Ryzhikov, Kud-Sverchkov, and Kate Rubins of NASA are scheduled to launch to the International Space Station aboard the Soyuz MS-17 spacecraft on October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 NASA astronaut Kate Rubins, left, Roscosmos cosmonaut Sergey Ryzhikov, center, and Roscosmos cosmonaut Sergey Kud-Sverchkov sit in chairs outside the Soyuz MS-17 spacecraft after they landed in a remote area near the town of Zhezkazgan, Kazakhstan on Saturday, April 17, 2021. Rubins, Ryzhikov and Kud-Sverchkov returned after 185 days in space having served as Expedition 63-64 crew members onboard the International Space Station. Photo Credit: NASA/Bill Ingalls

iss073e0257842 (July 8, 2025) --- Roscosmos cosmonauts (from left) Sergey Ryzhikov and Alexey Zubritsky, both Expedition 73 flight engineers, join each other and photograph treadmill components for inspection inside the International Space Station's Zvezda service module. Credit: Roscosmos

Expedition 73 crewmembers NASA astronaut Jonny Kim, left, and Roscosmos cosmonauts Sergey Ryzhikov and Alexey Zubritskiy and backup crewmembers Chris Williams of NASA, Sergey Kud-Skverchkov, and Sergey Mikaev of Roscosmos are seen in quarantine, behind glass, during a press conference, Monday, April 7, 2025 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Kim, Ryzhikov, Zubritskiy are scheduled to launch aboard their Soyuz MS-27 spacecraft on April 8. Photo Credit: (NASA/Joel Kowsky)

Expedition 73 crewmembers NASA astronaut Jonny Kim, left, and Roscosmos cosmonauts Sergey Ryzhikov and Alexey Zubritskiy and backup crewmembers Chris Williams of NASA, Sergey Kud-Skverchkov, and Sergey Mikaev of Roscosmos are seen during the State Commission meeting to approve the Soyuz launch of Expedition 73 to the International Space Station, Monday, April 7, 2025, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Kim, Ryzhikov, Zubritskiy are scheduled to launch aboard their Soyuz MS-27 spacecraft on April 8. Photo Credit: (NASA/Joel Kowsky)

Expedition 73 crewmembers NASA astronaut Jonny Kim, left, and Roscosmos cosmonauts Alexey Zubritskiy and Sergey Ryzhikov and backup crewmembers Sergey Kud-Skverchkov, and Sergey Mikaev of Roscosmos, Chris Williams of NASA, are seen in quarantine, behind glass, as they pose for a picture at the conclusion of a press conference, Monday, April 7, 2025 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Kim, Ryzhikov, Zubritskiy are scheduled to launch aboard their Soyuz MS-27 spacecraft on April 8. Photo Credit: (NASA/Joel Kowsky)

Expedition 73 crewmembers NASA astronaut Jonny Kim, left, and Roscosmos cosmonauts Alexey Zubritskiy and Sergey Ryzhikov and backup crewmembers Sergey Kud-Skverchkov, and Sergey Mikaev of Roscosmos, Chris Williams of NASA, are seen in quarantine, behind glass, as they pose for a picture at the conclusion of a press conference, Monday, April 7, 2025 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Kim, Ryzhikov, Zubritskiy are scheduled to launch aboard their Soyuz MS-27 spacecraft on April 8. Photo Credit: (NASA/Joel Kowsky)

Expedition 73 crewmembers NASA astronaut Jonny Kim, left, and Roscosmos cosmonauts Sergey Ryzhikov and Alexey Zubritskiy and backup crewmembers Chris Williams of NASA, Sergey Kud-Skverchkov, and Sergey Mikaev of Roscosmos are seen in quarantine, behind glass, during a press conference, Monday, April 7, 2025 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Kim, Ryzhikov, Zubritskiy are scheduled to launch aboard their Soyuz MS-27 spacecraft on April 8. Photo Credit: (NASA/Joel Kowsky)

Expedition 64 NASA astronaut Kate Rubins, left, and Russian cosmonauts Sergey Ryzhikov, center, and Sergey Kud-Sverchkov, right, of Roscosmos, wave as they depart the Cosmonaut Hotel to suit-up for their Soyuz launch to the International Space Station, Wednesday, Oct. 14, 2020, in Baikonur, Kazakhstan. Launch of the Soyuz MS-17 spacecraft with Ryzhikov, Kud-Sverchkov, and Rubins occurred at 1:45 a.m. EDT to begin their six-month mission onboard the International Space Station. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 NASA astronaut Kate Rubins, left, and Russian cosmonauts Sergey Ryzhikov, center, and Sergey Kud-Sverchkov of Roscosmos, right, pose for a picture during the final Soyuz MS-17 spacecraft fit check, Wednesday, Oct. 7, 2020, at the Baikonur Cosmodrome in Kazakhstan. Rubins, Ryzhikov, and Kud-Sverchkov are scheduled to launch to the International Space Station aboard the Soyuz MS-17 spacecraft on October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 prime crew members NASA astronaut Kate Rubins, left, and Russian cosmonauts Sergey Ryzhikov, center, and Sergey Kud-Sverchkov, right, of Roscosmos, are seen in quarantine, behind glass, during a press conference, Tuesday, Oct. 13, 2020, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Rubins, Ryzhikov, and Kud-Sverchkov are scheduled to launch to the International Space Station aboard the Soyuz MS-17 spacecraft on October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 NASA astronaut Kate Rubins, left, and Russian cosmonauts Sergey Ryzhikov, center, and Sergey Kud-Sverchkov, right, of Roscosmos, are seen as they depart the Cosmonaut Hotel to suit-up for their Soyuz launch to the International Space Station, Wednesday, Oct. 14, 2020, in Baikonur, Kazakhstan. Launch of the Soyuz MS-17 spacecraft with Ryzhikov, Kud-Sverchkov, and Rubins occurred at 1:45 a.m. EDT to begin their six-month mission onboard the International Space Station. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 Russian cosmonauts Sergey Ryzhikov, left, and Sergey Kud-Sverchkov, center, of Roscosmos, and NASA astronaut Kate Rubins, left, are seen as they depart the Cosmonaut Hotel to suit-up for their Soyuz launch to the International Space Station, Wednesday, Oct. 14, 2020, in Baikonur, Kazakhstan. Launch of the Soyuz MS-17 spacecraft with Ryzhikov, Kud-Sverchkov, Rubins occurred at 1:45 a.m. EDT to begin their six-month mission onboard the International Space Station. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 NASA astronaut Kate Rubins, left, and Russian cosmonauts Sergey Ryzhikov, center, and Sergey Kud-Sverchkov, right, of Roscosmos, pose for a picture in quarantine, behind glass, following a press conference, Tuesday, Oct. 13, 2020, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Rubins, Ryzhikov, and Kud-Sverchkov are scheduled to launch to the International Space Station aboard the Soyuz MS-17 spacecraft on October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 NASA astronaut Kate Rubins, left, and Russian cosmonauts Sergey Ryzhikov, center, and Sergey Kud-Sverchkov, right, of Roscosmos, pose for a picture in quarantine, behind glass, following a press conference, Tuesday, Oct. 13, 2020, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Rubins, Ryzhikov, and Kud-Sverchkov are scheduled to launch to the International Space Station aboard the Soyuz MS-17 spacecraft on October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 Russian cosmonaut Sergey Ryzhikov of Roscosmos is seen while having his Sokol suit pressure checked during the Soyuz MS-17 spacecraft fit check, Monday, Sept. 28, 2020, at the Baikonur Cosmodrome in Kazakhstan. Ryzhikov, NASA astronaut Kate Rubins, and Russian cosmonaut Sergey Kud-Sverchkov of Roscosmos are preparing for launch to the International Space Station in their Soyuz MS-17 spacecraft from the Baikonur Cosmodrome in Kazakhstan on October 14, Baikonur time. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 Russian cosmonauts Sergey Ryzhikov, left, and Sergey Kud-Sverchkov, right, of Roscosmos are seen during pressure checks of their Sokol suits during the Soyuz MS-17 spacecraft fit check, Monday, Sept. 28, 2020, at the Baikonur Cosmodrome in Kazakhstan. Ryzhikov, Kud-Sverchkov, and NASA astronaut Kate Rubins are preparing for launch to the International Space Station in their Soyuz MS-17 spacecraft from the Baikonur Cosmodrome in Kazakhstan on October 14, Baikonur time. Photo Credit: (NASA/GCTC/Andrey Shelepin)

iss073e0881098 (Oct. 16, 2025) --- Roscosmos cosmonauts Alexey Zubritsky (left) and Sergey Ryzhikov (right) are pictured during a six-hour and nine-minute spacewalk outside the International Space Station's Roscosmos segment. The duo installed a semiconductor materials experiment, removed a high-resolution camera monoblock, cleaned a window on the Zvezda service module, and removed a materials exposure experiment container.

iss073e0981212 (Oct. 16, 2025) --- Roscosmos cosmonauts Sergey Ryzhikov (left) and Alexey Zubritsky (bottom right) work together to remove a high-resolution camera (HRC) monoblock during a six-hour and nine-minute spacewalk outside the International Space Station's Roscosmos segment. The HRC monoblock is part of a scientific optical telescope system designed to test compact radio-optical detectors for Earth observation, ecological monitoring, and emergency response.

iss073e0988203 (Oct. 28, 2025) --- Roscosmos cosmonauts (top to bottom) Alexey Zubritsky and Sergey Ryzhikov are pictured in their Orlan spacesuits conducting a spacewalk 270 miles above southern Argentina. During the spacewalk, the duo installed a pulse plasma injector, cleaned a window on the Nauka science module, replaced a materials science cassette on Nauka, and moved a controller interface for the European robotic arm.

iss073e0881103 (Oct. 16, 2025) --- Roscosmos cosmonauts Alexey Zubritsky (center) and Sergey Ryzhikov (upper right) are pictured during a spacewalk outside the Roscosmos segment of the International Space Station. During the six-hour and nine-minute excursion, the duo installed a semiconductor materials experiment, removed a high-resolution camera monoblock, cleaned a window on the Zvezda service module, and dismantled a materials exposure container.

Expedition 64 crew member Sergey Ryzhikov of Roscosmos signs in for Soyuz qualification exams as crew mate Sergey Kud-Sverchkov of Roscosmos looks on, Wednesday, Sept. 23, 2020 at the Gagarin Cosmonaut Training Center (GCTC) in Star City, Russia. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 crew member Sergey Ryzhikov of Roscosmos, signs in for Soyuz qualification exams as fellow crew member Sergey Kud-Sverchkov of Roscosmos looks on, Tuesday, Sept. 22, 2020 at the Gagarin Cosmonaut Training Center (GCTC) in Star City, Russia. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 Russian cosmonaut Sergey Ryzhikov of Roscosmos takes part in spin chair training, Tuesday, Oct. 6, 2020, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Ryzhikov, Sergey Kud-Sverchkov of Roscosmos and Kate Rubins of NASA are scheduled to launch to the International Space Station aboard the Soyuz MS-17 spacecraft on October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 Roscosmos cosmonaut Sergey Ryzhikov signs the Soyuz MS-17 spacecraft after he, Roscosmos cosmonaut Sergey Kud-Sverchkov, and NASA astronaut Kate Rubins landed in a remote area near the town of Zhezkazgan, Kazakhstan on Saturday, April 17, 2021. Rubins, Ryzhikov and Kud-Sverchkov returned after 185 days in space having served as Expedition 63-64 crew members onboard the International Space Station. Photo Credit: NASA/Bill Ingalls

Expedition 64 Russian cosmonaut Sergey Ryzhikov of Roscosmos is presented with a souvenir launch key during traditional pre-launch ceremonies at the Baikonur Cosmodrome Museum, Wednesday, Oct. 7, 2020, at the Baikonur Cosmodrome in Kazakhstan. Ryzhikov, Sergey Kud-Sverchkov of Roscosmos, and Kate Rubins of NASA are scheduled to launch to the International Space Station aboard the Soyuz MS-17 spacecraft on October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 Roscosmos cosmonaut Sergey Ryzhikov is seen outside the Soyuz MS-17 spacecraft after he, Roscosmos cosmonaut Sergey Kud-Sverchkov, and NASA astronaut Kate Rubins landed in a remote area near the town of Zhezkazgan, Kazakhstan on Saturday, April 17, 2021. Rubins, Ryzhikov and Kud-Sverchkov returned after 185 days in space having served as Expedition 63-64 crew members onboard the International Space Station. Photo Credit: NASA/Bill Ingalls

Expedition 64 Russian cosmonaut Sergey Ryzhikov of Roscosmos is seen in quarantine, behind glass, during a press conference, Tuesday, Oct. 13, 2020, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Ryzhikov, fellow cosmonaut Sergey Kud-Sverchkov and NASA astronaut Kate Rubins are scheduled to launch to the International Space Station aboard the Soyuz MS-17 spacecraft on October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 Russian cosmonaut Sergey Ryzhikov of Roscosmos waters a tree bearing his name as part of traditional pre-launch activities, Tuesday, Oct. 6, 2020, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Ryzhikov, Sergey Kud-Sverchkov of Roscosmos, and Kate Rubins of NASA are scheduled to launch to the International Space Station aboard the Soyuz MS-17 spacecraft on October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 Russian cosmonaut Sergey Ryzhikov of Roscosmos is seen in quarantine, behind glass, during a press conference, Tuesday, Oct. 13, 2020, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Ryzhikov, fellow cosmonaut Sergey Kud-Sverchkov and NASA astronaut Kate Rubins are scheduled to launch to the International Space Station aboard the Soyuz MS-17 spacecraft on October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

NASA astronaut Jonny Kim, left, and Roscosmos cosmonaut Sergey Ryzhikov are seen in quarantine, behind glass, during a press conference, Monday, April 7, 2025 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 73 crew members: NASA astronaut Jonny Kim, and Roscosmos cosmonauts Sergey Ryzhikov and Alexey Zubritskiy, are scheduled to launch aboard their Soyuz MS-27 spacecraft on April 8. Photo Credit: (NASA/Joel Kowsky)

Expedition 64 crew member Sergey Ryzhikov of Roscosmos plays a game of ping-pong, Tuesday, Oct. 6, 2020, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Ryzhikov, Sergey Kud-Sverchkov of Roscosmos and Kate Rubins of NASA are scheduled to launch to the International Space Station aboard the Soyuz MS-17 spacecraft on October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Roscosmos cosmonaut Sergey Ryzhikov is seen in quarantine, behind glass, during a press conference, Monday, April 7, 2025 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 73 crew members: NASA astronaut Jonny Kim, and Roscosmos cosmonauts Sergey Ryzhikov and Alexey Zubritskiy, are scheduled to launch aboard their Soyuz MS-27 spacecraft on April 8. Photo Credit: (NASA/Joel Kowsky)

Expedition 64 Russian cosmonaut Sergey Ryzhikov of Roscosmos performs the traditional door signing at the Cosmonaut Hotel prior to departing the hotel for launch on a Soyuz rocket with fellow crewmates Sergey Kud-Sverchkov of Roscosmos and Kate Rubins of NASA, Wednesday, Oct. 14, 2020, in Baikonur, Kazakhstan. Ryzhikov, Kud-Sverchkov, and Rubins launched in their Soyuz MS-17 spacecraft at 1:45 a.m. EDT to begin a six-month mission onboard the International Space Station. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 Russian cosmonaut Sergey Ryzhikov of Roscosmos signs his name to a wall mural bearing the picture of a Soyuz launch at the Baikonur Cosmodrome Museum, Wednesday, Oct. 7, 2020, at the Baikonur Cosmodrome in Kazakhstan. Ryzhikov, Sergey Kud-Sverchkov of Roscosmos, and Kate Rubins of NASA are scheduled to launch to the International Space Station aboard the Soyuz MS-17 spacecraft on October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 Roscosmos cosmonaut Sergey Ryzhikov is helped out of the Soyuz MS-17 spacecraft just minutes after he, Roscosmos cosmonaut Sergey Kud-Sverchkov, and NASA astronaut Kate Rubins landed in a remote area near the town of Zhezkazgan, Kazakhstan on Saturday, April 17, 2021. Rubins, Ryzhikov and Kud-Sverchkov returned after 185 days in space having served as Expedition 63-64 crew members onboard the International Space Station. Photo Credit: NASA/Bill Ingalls

Roscosmos cosmonaut Sergey Ryzhikov is seen during the State Commission meeting to approve the Soyuz launch of Expedition 73 to the International Space Station, Monday, April 7, 2025, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 73 crew members: NASA astronaut Jonny Kim, and Roscosmos cosmonauts Sergey Ryzhikov and Alexey Zubritskiy, are scheduled to launch aboard their Soyuz MS-27 spacecraft on April 8. Photo Credit: (NASA/Joel Kowsky)

Expedition 64 Russian cosmonaut Sergey Ryzhikov of Roscosmos is seen while having his Sokol suit pressure checked during the Soyuz MS-17 spacecraft fit check, Monday, Sept. 28, 2020, at the Baikonur Cosmodrome in Kazakhstan. Ryzhikov, NASA astronaut Kate Rubins, and Russian cosmonaut Sergey Kud-Sverchkov of Roscosmos are preparing for launch to the International Space Station in their Soyuz MS-17 spacecraft from the Baikonur Cosmodrome in Kazakhstan on October 14, Baikonur time. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 Russian cosmonaut Sergey Ryzhikov of Roscosmos waves as he climbs inside the Soyuz MS-17 spacecraft during the final fit check, Wednesday, Oct. 7, 2020, at the Baikonur Cosmodrome in Kazakhstan. Ryzhikov, Russian cosmonaut Sergey Kud-Sverchkov of Roscosmos and NASA astronaut Kate Rubins, are scheduled to launch to the International Space Station aboard the Soyuz MS-17 spacecraft on October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 Roscosmos cosmonaut Sergey Ryzhikov is seen outside the Soyuz MS-17 spacecraft after he, Roscosmos cosmonaut Sergey Kud-Sverchkov, and NASA astronaut Kate Rubins landed in a remote area near the town of Zhezkazgan, Kazakhstan on Saturday, April 17, 2021. Rubins, Ryzhikov and Kud-Sverchkov returned after 185 days in space having served as Expedition 63-64 crew members onboard the International Space Station. Photo Credit: NASA/Bill Ingalls

Expedition 64 prime crew members, NASA astronaut Kate Rubins, left, Russian cosmonaut Sergey Ryzhikov of Roscosmos, center, and Russian cosmonaut Sergey Kud-Sverchkov of Roscosmos pose for a photo at the bus after arriving in Baikonur, Kazakhstan from the Gagarin Cosmonaut Training Center, Sunday, Sept. 27, 2020. They are scheduled to launch from the Baikonur Cosmosdrome on a Soyuz rocket October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 prime crew members, NASA astronaut Kate Rubins, left, Russian cosmonaut Sergey Ryzhikov of Roscosmos, center, and Russian cosmonaut Sergey Kud-Sverchkov of Roscosmos arrive in Baikonur, Kazakhstan from the Gagarin Cosmonaut Training Center, Sunday, Sept. 27, 2020. They are scheduled to launch from the Baikonur Cosmosdrome on a Soyuz rocket October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 prime crew members, NASA astronaut Kate Rubins, left, Russian cosmonaut Sergey Ryzhikov of Roscosmos, center, and Russian cosmonaut Sergey Kud-Sverchkov of Roscosmos greet Russian officials after arriving in Baikonur, Kazakhstan from the Gagarin Cosmonaut Training Center, Sunday, Sept. 27, 2020. They are scheduled to launch from the Baikonur Cosmosdrome on a Soyuz rocket October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 prime crew member, NASA astronaut Kate Rubins, center, affixes an Expedition 64 sticker inside the airplane that delivered her and her crew mates Russian cosmonaut Sergey Ryzhikov of Roscosmos, front, and Russian cosmonaut Sergey Kud-Sverchkov of Roscosmos to Baikonur, Kazakhstan from the Gagarin Cosmonaut Training Center, Sunday, Sept. 27, 2020. They are scheduled to launch from the Baikonur Cosmosdrome on a Soyuz rocket October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

nhq201704100028 (April 10, 2017) --- Russian cosmonaut Sergey Ryzhikov of Roscosmos rests in a chair outside the Soyuz MS-02 spacecraft just minutes after he, NASA astronaut Shane Kimbrough, and Russian cosmonaut Andrey Borisenko of Roscosmos landed in a remote area near the town of Zhezkazgan, Kazakhstan on Monday, April 10, 2017 (Kazakh time). Kimbrough, Ryzhikov, and Borisenko are returning after 173 days in space where they served as members of the Expedition 49 and 50 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

nhq201704100024 (April 10, 2017) --- Russian cosmonaut Sergey Ryzhikov of Roscosmos is helped out of the Soyuz MS-02 spacecraft just minutes after he, NASA astronaut Shane Kimbrough, and Russian cosmonaut Andrey Borisenko of Roscosmos landed in a remote area near the town of Zhezkazgan, Kazakhstan on Monday, April 10, 2017 (Kazakh time). Kimbrough, Ryzhikov, and Borisenko are returning after 173 days in space where they served as members of the Expedition 49 and 50 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

nhq201704100034 (April 10, 2017) --- Russian cosmonaut Sergey Ryzhikov of Roscosmos is carried into a medical tent shortly after he, NASA astronaut Shane Kimbrough, and Russian cosmonaut Andrey Borisenko of Roscosmos landed in their Soyuz MS-02 spacecraft in a remote area near the town of Zhezkazgan, Kazakhstan on Monday, April 10, 2017 (Kazakh time). Kimbrough, Ryzhikov, and Borisenko are returning after 173 days in space where they served as members of the Expedition 49 and 50 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 64 crewmembers Sergey Kud-Sverchkov of Roscosmos, Sergey Ryzhikov of Roscosmos, and Kate Rubins of NASA pose for a group photograph with Roscosmos Director General Dmitry Rogozin, mission management, and the backup crew at the launch pad, Wednesday, Oct. 14, 2020, at the Baikonur Cosmodrome in Kazakhstan. Kud-Sverchkov, Ryzhikov, and Rubins launched at 1:45 a.m. EDT to begin six-month mission onboard the International Space Station. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 49 Russian cosmonaut Sergei Ryzhikov of Roscosmos dons his Russian Sokol suit ahead of the Soyuz qualification exams with Russian cosmonaut Sergei Ryzhikov and NASA astronaut Shane Kimbrough, Wednesday, Aug. 31, 2016, at the Gagarin Cosmonaut Training Center (GCTC) in Star City, Russia. Photo Credit: (NASA/Bill Ingalls)

Expedition 49 crew members Shane Kimbrough of NASA, left, Sergey Ryzhikov, center, and Andrey Borisenko of Roscosmos, right, pose for pictures in front of the base of a Soyuz rocket on Thursday, Oct. 13, 2016 at the Baikonur Cosmodrome in Kazakhstan. Expedition 49 flight engineer Shane Kimbrough of NASA, flight engineer Andrey Borisenko of Roscosmos, and Soyuz commander Sergey Ryzhikov of Roscosmos are scheduled to launch from the Baikonur Cosmodrome in Kazakhstan on Oct. 19. Photo Credit: (NASA/Victor Zelentsov)

Expedition 64 crew member Kate Rubins of NASA signs in for Soyuz qualification exams as crew mates Sergey Ryzhikov of Roscosmos, center, and Sergey Kud-Sverchkov of Roscosmos look on, Wednesday, Sept. 23, 2020 at the Gagarin Cosmonaut Training Center (GCTC) in Star City, Russia. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 64 crew member Sergey Kud-Sverchkov of Roscosmos signs in for Soyuz qualification exams, as crew mates Kate Rubins of NASA, left and Sergey Ryzhikov of Roscosmos look on, Wednesday, Sept. 23, 2020 at the Gagarin Cosmonaut Training Center (GCTC) in Star City, Russia. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 64 NASA astronaut Kate Rubins, back, and Russian cosmonauts Sergey Ryzhikov, middle, and Sergey Kud-Sverchkov, front, of Roscosmos, are seen inside the Soyuz MS-17 spacecraft during a fit check, Monday, Sept. 28, 2020, at the Baikonur Cosmodrome in Kazakhstan. The trio are preparing for launch to the International Space Station in their Soyuz MS-17 spacecraft from the Baikonur Cosmodrome in Kazakhstan on October 14, Baikonur time. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 NASA astronaut Kate Rubins, left, and Russian cosmonauts Sergey Ryzhikov, center, and Sergey Kud-Sverchkov, right, of Roscosmos are seen as they don their Sokol suits during the Soyuz MS-17 spacecraft fit check, Monday, Sept. 28, 2020, at the Baikonur Cosmodrome in Kazakhstan. The trio are preparing for launch to the International Space Station in their Soyuz MS-17 spacecraft from the Baikonur Cosmodrome in Kazakhstan on October 14, Baikonur time. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 crew members Russian cosmonauts Sergey Kud-Sverchkov, left, and Sergey Ryzhikov of Roscosmos, center, and NASA astronaut Kate Rubins, right, pose for a picture as part of pre-launch activities, Tuesday, Oct. 6, 2020, at the Cosmonaut Hotel in Baikonur, Kazakhstan. The trio are scheduled to launch to the International Space Station aboard the Soyuz MS-17 spacecraft on October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 NASA astronaut Kate Rubins, back, and Russian cosmonauts Sergey Ryzhikov, middle, and Sergey Kud-Sverchkov of Roscosmos are seen inside the Soyuz MS-17 spacecraft during a fit check, Monday, Sept. 28, 2020, at the Baikonur Cosmodrome in Kazakhstan. The trio are preparing for launch to the International Space Station in their Soyuz MS-17 spacecraft from the Baikonur Cosmodrome in Kazakhstan on October 14, Baikonur time. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 prime crew members, NASA astronaut Kate Rubins, left, Russian cosmonaut Sergey Ryzhikov of Roscosmos, center, and Russian cosmonaut Sergey Kud-Sverchkov of Roscosmos visit Red Square to lay flowers at the site where Russian space icons are interred as part of traditional pre-launch ceremonies, Thursday, Sept. 24, 2020 in Moscow. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 64 prime crew members, NASA astronaut Kate Rubins, left, Russian cosmonaut Sergey Ryzhikov of Roscosmos, center, and Russian cosmonaut Sergey Kud-Sverchkov of Roscosmos pose for a photo in front of the Tsar Bell in Red Square after laying flowers at the site where Russian space icons are interred as part of traditional pre-launch ceremonies, Thursday, Sept. 24, 2020 in Moscow. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 64 prime crew members, NASA astronaut Kate Rubins, left, Russian cosmonaut Sergey Ryzhikov of Roscosmos, center, and Russian cosmonaut Sergey Kud-Sverchkov of Roscosmos pose for a photo in front of the Tsar Cannon in Red Square after laying flowers at the site where Russian space icons are interred as part of traditional pre-launch ceremonies, Thursday, Sept. 24, 2020 in Moscow. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 64 crew members NASA astronaut Kate Rubins, left, and Russian cosmonauts Sergey Ryzhikov, center, and Sergey Kud-Sverchkov of Roscosmos, right, pose for a picture as part of pre-launch activities, Tuesday, Oct. 6, 2020, at the Cosmonaut Hotel in Baikonur, Kazakhstan. The trio are scheduled to launch to the International Space Station aboard the Soyuz MS-17 spacecraft on October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 NASA astronaut Kate Rubins, back, and Russian cosmonauts Sergey Ryzhikov, middle, and Sergey Kud-Sverchkov of Roscosmos are seen inside the Soyuz MS-17 spacecraft during a fit check, Monday, Sept. 28, 2020, at the Baikonur Cosmodrome in Kazakhstan. The trio are preparing for launch to the International Space Station in their Soyuz MS-17 spacecraft from the Baikonur Cosmodrome in Kazakhstan on October 14, Baikonur time. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 Russian cosmonaut Sergey Kud-Sverchkov of Roscosmos, center, plants a tree bearing his name as part of traditional pre-launch activities, Tuesday, Oct. 6, 2020, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Looking on are crew mates Sergey Ryzhikov of Roscosmos, left, and Kate Rubins of NASA, right.The trio are scheduled to launch to the International Space Station aboard the Soyuz MS-17 spacecraft on October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 crew members NASA astronaut Kate Rubins, left, and Russian cosmonauts Sergey Ryzhikov, center, and Sergey Kud-Sverchkov, right, of Roscosmos practice rendezvous techniques on a laptop simulator, Tuesday, Oct. 6, 2020, at the Cosmonaut Hotel in Baikonur, Kazakhstan. The trio are scheduled to launch to the International Space Station aboard the Soyuz MS-17 spacecraft on October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 Russian cosmonauts Sergey Kud-Sverchkov, back, and Sergey Ryzhikov, center, of Roscosmos, and NASA astronaut Kate Rubins, front, are seen inside the Soyuz MS-17 spacecraft during a fit check, Monday, Sept. 28, 2020, at the Baikonur Cosmodrome in Kazakhstan. The trio are preparing for launch to the International Space Station in their Soyuz MS-17 spacecraft from the Baikonur Cosmodrome in Kazakhstan on October 14, Baikonur time. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 NASA astronaut Kate Rubins, left, and Russian cosmonauts Sergey Kud-Sverchkov, center, and Sergey Ryzhikov of Roscosmos, right, are seen during a traditional tour of the Baikonur Cosmodrome Museum, Wednesday, Oct. 7, 2020, Baikonur Cosmodrome in Kazakhstan. The trio are scheduled to launch to the International Space Station aboard the Soyuz MS-17 spacecraft on October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 crew members Sergey Ryzhikov of Roscosmos, left, and Sergey Kud-Sverchkov of Roscosmos are seen on monitors during the Soyuz qualification exams Wednesday, Sept. 23, 2020 at the Gagarin Cosmonaut Training Center (GCTC) in Star City, Russia, in advance of their scheduled launch October 14 from Baikonur Cosmodrome in Kazakhstan to the International Space Station. Photo Credit: (NASA/GCTC/Andrey Shelepin)

nhq202010060004 (Oct. 6, 2020) --- Expedition 64 crew members NASA astronaut Kate Rubins, left, and Russian cosmonauts Sergey Ryzhikov, center, and Sergey Kud-Sverchkov, right, of Roscosmos review launch procedures with trainers, Tuesday, Oct. 6, 2020, at the Cosmonaut Hotel in Baikonur, Kazakhstan. The trio are scheduled to launch to the International Space Station aboard the Soyuz MS-17 spacecraft on October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 Russian cosmonauts Sergey Ryzhikov, left, and Sergey Kud-Sverchkov, right, of Roscosmos are seen following Russian Sokol suit pressure checks as they and fellow crewmate NASA astronaut Kate Rubins prepare for their Soyuz launch to the International Space Station Wednesday, Oct. 14, 2020, at the Baikonur Cosmodrome in Kazakhstan. The trio launched at 1:45 a.m. EDT to begin a six-month mission aboard the International Space Station. Photo Credit: (NASA/GCTC/Andrey Shelepin)

nhq202010060003 (Oct. 6, 2020) --- Expedition 64 crew members NASA astronaut Kate Rubins, left, and Russian cosmonauts Sergey Ryzhikov, center, and Sergey Kud-Sverchkov, right, of Roscosmos practice rendezvous techniques on a laptop simulator, Tuesday, Oct. 6, 2020, at the Cosmonaut Hotel in Baikonur, Kazakhstan. The trio are scheduled to launch to the International Space Station aboard the Soyuz MS-17 spacecraft on October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 NASA astronaut Kate Rubins, left, and Russian cosmonauts Sergey Ryzhikov, center, and Sergey Kud-Sverchkov, right, of Roscosmos take a moment during the Soyuz MS-17 spacecraft fit check to pose for a photograph, Monday, Sept. 28, 2020, at the Baikonur Cosmodrome in Kazakhstan. The trio are preparing for launch to the International Space Station in their Soyuz MS-17 spacecraft from the Baikonur Cosmodrome in Kazakhstan on October 14, Baikonur time. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 NASA astronaut Kate Rubins, left, and Russian cosmonauts Sergey Ryzhikov, center, and Sergey Kud-Sverchkov, right, of Roscosmos take a moment during the Soyuz MS-17 spacecraft fit check to pose for a photograph, Monday, Sept. 28, 2020, at the Baikonur Cosmodrome in Kazakhstan. The trio are preparing for launch to the International Space Station in their Soyuz MS-17 spacecraft from the Baikonur Cosmodrome in Kazakhstan on October 14, Baikonur time. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 NASA astronaut Kate Rubins, left, and Russian cosmonauts Sergey Kud-Sverchkov, center, and Sergey Ryzhikov of Roscosmos, right, are seen during a traditional tour of the Baikonur Cosmodrome Museum, Wednesday, Oct. 7, 2020, Baikonur Cosmodrome in Kazakhstan. The trio are scheduled to launch to the International Space Station aboard the Soyuz MS-17 spacecraft on October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 NASA astronaut Kate Rubins, left, and Russian cosmonauts Sergey Ryzhikov, center, and Sergey Kud-Sverchkov, right, of Roscosmos take a moment during the Soyuz MS-17 spacecraft fit check to pose for a photograph, Monday, Sept. 28, 2020, at the Baikonur Cosmodrome in Kazakhstan. The trio are preparing for launch to the International Space Station in their Soyuz MS-17 spacecraft from the Baikonur Cosmodrome in Kazakhstan on October 14, Baikonur time. Photo Credit: (NASA/GCTC/Andrey Shelepin)

nhq201704100051 (April 10, 2017) --- Girls in traditional Kazakhstan dress welcome back from space Expedition 50 Commander Shane Kimbrough of NASA and Flight Engineers Sergey Ryzhikov and Andrey Borisenko of Roscosmos at a Karaganda Airport welcome ceremony in Kazakhstan on Monday, April 10, 2017. 2017 (Kazakh time). Kimbrough, Ryzhikov, and Borisenko are returning after 173 days in space where they served as members of the Expedition 49 and 50 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

nhq201704100054 (April 10, 2017) --- Expedition 50 Commander Shane Kimbrough of NASA, left, and Flight Engineers Sergey Ryzhikov, center, and Andrey Borisenko of Roscosmos are seen at a Karaganda Airport welcome ceremony in Kazakhstan on Monday, April 10, 2017. 2017 (Kazakh time). Kimbrough, Ryzhikov, and Borisenko are returning after 173 days in space where they served as members of the Expedition 49 and 50 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

nhq201704100053 (April 10, 2017) --- Expedition 50 Commander Shane Kimbrough of NASA, left, and Flight Engineers Sergey Ryzhikov, center, and Andrey Borisenko of Roscosmos are seen at a Karaganda Airport welcome ceremony in Kazakhstan on Monday, April 10, 2017. 2017 (Kazakh time). Kimbrough, Ryzhikov, and Borisenko are returning after 173 days in space where they served as members of the Expedition 49 and 50 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 64 prime crew member Sergey Ryzhikov of Roscosmos lays flowers at the site where Russian space icons are interred as part of traditional pre-launch ceremonies, Thursday, Sept. 24, 2020 in Moscow. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 64 prime crew member Sergey Ryzhikov of Roscosmos lays flowers at the site where Russian space icons are interred as part of traditional pre-launch ceremonies, Thursday, Sept. 24, 2020 at Red Square in Moscow. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 64 prime and backup crew members are seen in quarantine, behind glass, during a press conference, Tuesday, Oct. 13, 2020, at the Cosmonaut Hotel in Baikonur, Kazakhstan. From left to right are prime crew members Kate Rubins of NASA, Sergey Ryzhikov of Roscosmos, and Sergey Kud-Sverchkov of Roscosmos, and backup crew members Petr Dubrov of Roscosmos, Oleg Novitskiy of Roscosmos, and Mark Vande Hei of NASA. Rubins, Ryzhikov, and Kud-Sverchkov are scheduled to launch to the International Space Station aboard the Soyuz MS-17 spacecraft on October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

The Expedition 64 prime and backup crew members pose for a picture next to a replica of a Vostok seat and passenger at the Baikonur Cosmodrome Museum, Wednesday, Oct. 7, 2020, at the Baikonur Cosmodrome in Kazakhstan. From left to right are the prime crew members Kate Rubins of NASA, Sergey Kud-Sverchkov of Roscosmos, and Sergey Ryzhikov of Roscosmos, and backup crew members Oleg Novitskiy of Roscosmos, Petr Dubrov of Roscosmos, and Mark Vande Hei of NASA. Rubins, Kud-Sverchkov, and Ryzhikov are scheduled to launch to the International Space Station aboard the Soyuz MS-17 spacecraft on October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

The Expedition 64 prime and backup crew members raise the flags of Russia, the United States, and Kazakhstan, Tuesday, Sept. 29, 2020, in traditional ceremonies outside the Cosmonaut Hotel in Baikonur, Kazakhstan. From left to right are Expedition 64 prime crew members Sergey Ryzhikov and Sergey Kud-Sverchkov of Roscosmos, prime crew member Kate Rubins, and her backup, Mark Vande Hei of NASA, and backup crew members Oleg Novitskiy and Petr Dubrov of Roscosmos. Ryzhikov, Kud-Sverchkov, and Rubins are scheduled to launch in their Soyuz MS-17 spacecraft on October 14 for their mission to the International Space Station. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 prime and backup crew members pose for a picture in quarantine, behind glass, following a press conference, Tuesday, Oct. 13, 2020, at the Cosmonaut Hotel in Baikonur, Kazakhstan. From left to right are prime crew members Kate Rubins of NASA, Sergey Kud-Sverchkov of Roscosmos, and Sergey Ryzhikov of Roscosmos, and backup crew members Oleg Novitskiy of Roscosmos, Petr Dubrov of Roscosmos, and Mark Vande Hei of NASA. Rubins, Ryzhikov, and Kud-Sverchkov are scheduled to launch to the International Space Station aboard the Soyuz MS-17 spacecraft on October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

The Expedition 64 prime and backup crew members raise the flags of Russia, the United States, and Kazakhstan, Tuesday, Sept. 29, 2020, in traditional ceremonies outside the Cosmonaut Hotel in Baikonur, Kazakhstan. From left to right are Expedition 64 prime crew members Sergey Ryzhikov and Sergey Kud-Sverchkov of Roscosmos, prime crew member Kate Rubins, and her backup, Mark Vande Hei of NASA, and backup crew members Oleg Novitskiy and Petr Dubov of Roscosmos. Ryzhikov, Kud-Sverchkov, and Rubins are scheduled to launch in their Soyuz MS-17 spacecraft on October 14 for their mission to the International Space Station. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 backup and prime crew members pose for a picture as part of pre-launch activities, Tuesday, Oct. 6, 2020, at the Cosmonaut Hotel in Baikonur, Kazakhstan. From left to right are backup crew members Mark Vande Hei of NASA, Oleg Novitskiy of Roscosmos, Petr Dubrov of Roscosmos, and prime crew members Kate Rubins of NASA, Sergey Ryzhikov of Roscosmos, and Sergey Kud-Sverchkov of Roscosmos. Expedition 64 prime crew members Ryzhikov, Kud-Sverchkov, and Rubins are scheduled to launch to the International Space Station aboard the Soyuz MS-17 spacecraft on October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 prime and backup crew members pose for a picture as part of pre-launch activities, Tuesday, Oct. 6, 2020, at the Cosmonaut Hotel in Baikonur, Kazakhstan. From left to right are prime crew members Sergey Kud-Sverchkov of Roscosmos, Sergey Ryzhikov of Roscosmos, and Kate Rubins of NASA, and backup crew members Petr Dubrov of Roscosmos, Oleg Novitskiy of Roscosmos, and Mark Vande Hei of NASA. Expedition 64 prime crew members Ryzhikov, Kud-Sverchkov, and Rubins are scheduled to launch to the International Space Station aboard the Soyuz MS-17 spacecraft on October 14. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 Russian cosmonaut Sergey Ryzhikov of Roscosmos dons his Sokol suit during the Soyuz MS-17 spacecraft fit check with fellow Russian cosmonaut Sergey Kud-Sverchkov and NASA astronaut Kate Rubins, Monday, Sept. 28, 2020, at the Baikonur Cosmodrome in Kazakhstan. The trio are preparing for launch to the International Space Station in their Soyuz MS-17 spacecraft from the Baikonur Cosmodrome in Kazakhstan on October 14, Baikonur time. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 64 Russian cosmonaut Sergey Ryzhikov of Roscosmos is seen after donning his Sokol suit during the Soyuz MS-17 spacecraft fit check with fellow Russian cosmonaut Sergey Kud-Sverchkov and NASA astronaut Kate Rubins, Monday, Sept. 28, 2020, at the Baikonur Cosmodrome in Kazakhstan. The trio are preparing for launch to the International Space Station in their Soyuz MS-17 spacecraft from the Baikonur Cosmodrome in Kazakhstan on October 14, Baikonur time. Photo Credit: (NASA/GCTC/Andrey Shelepin)