jsc2025e067906_alt (July 31, 2025) --- Roscosmos cosmonaut and Expedition 75 flight engineer Pyotr Dubrov poses for a preflight portrait at NASA's Johnson Space Center in Houston, Texas. Credit: NASA/Robert Markowitz

jsc2025e074502 (Aug. 14, 2020) --- Roscosmos cosmonaut and Soyuz MS-28 Backup Commander Pyotr Dubrov poses for a portrait in his Sokol launch and entry suit at the Gagarin Cosmonaut Training Center in Star City, Russia. Credit: GCTC

Expedition 65 Russian cosmonaut Pyotr Dubrov is seen during the State Commission meeting to approve the Soyuz launch of Expedition 65 to the International Space Station, Thursday, April 8, 2021 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 65 NASA astronaut Mark Vande Hei, Roscosmos cosmonauts Pyotr Dubrov and Oleg Novitskiy, are scheduled to launch to the International Space Station aboard the Soyuz MS-18 spacecraft on April 9. Photo Credit: (NASA/Bill Ingalls)

Roscosmos cosmonaut Pyotr Dubrov is seen in quarantine, behind glass, during a press conference, Monday, July 13, 2026 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 75 crewmembers: NASA astronaut Anil Menon, Roscosmos cosmonauts Pyotr Dubrov and Anna Kikina are scheduled to launch aboard the Soyuz MS-29 spacecraft to the International Space Station on July 14. Photo Credit: (NASA/Bill Ingalls)

Roscosmos cosmonaut Pyotr Dubrov is seen in quarantine, behind glass, during a press conference, Monday, July 13, 2026 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 75 crewmembers: NASA astronaut Anil Menon, Roscosmos cosmonauts Pyotr Dubrov and Anna Kikina are scheduled to launch aboard the Soyuz MS-29 spacecraft to the International Space Station on July 14. Photo Credit: (NASA/Bill Ingalls)

Roscosmos cosmonaut Pyotr Dubrov is seen in quarantine, behind glass, during a press conference, Monday, July 13, 2026 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 75 crewmembers: NASA astronaut Anil Menon, Roscosmos cosmonauts Pyotr Dubrov and Anna Kikina are scheduled to launch aboard the Soyuz MS-29 spacecraft to the International Space Station on July 14. Photo Credit: (NASA/Bill Ingalls)

Expedition 66 Russian cosmonaut Pyotr Dubrov is helped out of the Soyuz MS-19 spacecraft just minutes after he, Russian cosmonaut Anton Shkaplerov and NASA astronaut Mark Vande Hei, landed in a remote area near the town of Zhezkazgan, Kazakhstan on Wednesday, March 30, 2022. Vande Hei and Dubrov are returning to Earth after logging 355 days in space as members of Expeditions 64-66 aboard the International Space Station. For Vande Hei, his mission is the longest single spaceflight by a U.S. astronaut in history. Shkaplerov is returning after 176 days in space, serving as a Flight Engineer for Expedition 65 and commander of Expedition 66. Photo Credit: (NASA/Bill Ingalls)

Russian cosmonaut Pyotr Dubrov is seen outside the Soyuz MS-19 spacecraft after he landed with fellow Expedition 66 crew members Anton Shkaplerov of Roscosmos, and NASA astronaut Mark Vande Hei in a remote area near the town of Zhezkazgan, Kazakhstan on Wednesday, March 30, 2022. Vande Hei and Dubrov are returning to Earth after logging 355 days in space as members of Expeditions 64-66 aboard the International Space Station. For Vande Hei, his mission is the longest single spaceflight by a U.S. astronaut in history. Shkaplerov is returning after 176 days in space, serving as a Flight Engineer for Expedition 65 and commander of Expedition 66. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 crewmember Pyotr Dubrov of Roscosmos is seen in quarantine, behind glass, during a press conference, Monday, July 13, 2026, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 75 crewmembers NASA astronaut Anil Menon and Roscosmos cosmonauts Pyotr Dubrov and Anna Kikina are scheduled to launch aboard the Soyuz MS-29 spacecraft to the International Space Station on July 14. Photo Credit: (NASA/John Kraus)

Expedition 65 prime crew member Russian cosmonaut Pyotr Dubrov of Roscosmos, takes part in spin chair training, Saturday, April 3, 2021, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Dubrov, NASA astronaut Mark Vande Hei, and Russian cosmonaut Oleg Novitskiy of Roscosmos are scheduled to launch to the International Space Station aboard the Soyuz MS-18 spacecraft on April 9. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 65 Russian cosmonaut Pyotr Dubrov is seen in quarantine, behind glass, during a press conference, Thursday, April 8, 2021 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 65 NASA astronaut Mark Vande Hei, Roscosmos cosmonauts Oleg Novitskiy and Dubrov are scheduled to launch to the International Space Station aboard the Soyuz MS-18 spacecraft on April 9. Photo Credit: (NASA/Bill Ingalls)

Expedition 65 prime crew member Russian cosmonaut Pyotr Dubrov of Roscosmos takes part in tilt table training Saturday, April 3, 2021, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Dubrov, Oleg Novitskiy of Roscosmos, and NASA astronaut Mark Vande Hei, are scheduled to launch to the International Space Station aboard the Soyuz MS-18 spacecraft on April 9. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 65 Roscosmos cosmonaut Pyotr Dubrov is seen in quarantine, behind glass, during a press conference, Thursday, April 8, 2021 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 65 NASA astronaut Mark Vande Hei, Roscosmos cosmonauts Oleg Novitskiy and Dubrov are scheduled to launch to the International Space Station aboard the Soyuz MS-18 spacecraft on April 9. Photo Credit: (NASA/Bill Ingalls)

Expedition 65 prime crew member Russian cosmonaut Pyotr Dubrov of Roscosmos signs his name to a wall mural bearing the picture of a Soyuz launch at the Baikonur Cosmodrome Museum, Sunday, April 4, 2021 at the Baikonur Cosmodrome in Kazakhstan. Dubrov, Oleg Novitskiy of Roscosmos, and NASA astronaut Mark Vande Hei are scheduled to launch to the International Space Station aboard the Soyuz MS-18 spacecraft on April 9. Photo Credit: (NASA/GCTC/Irina Spector)

Roscosmos cosmonauts Oleg Novitskiy and Pyotr Dubrov laugh during a press conference, Thursday, April 8, 2021 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Expedition 65 NASA astronaut Mark Vande Hei, Novitskiy and Dubrov are scheduled to launch to the International Space Station aboard the Soyuz MS-18 spacecraft on April 9. Photo Credit: (NASA/Bill Ingalls)

Expedition 65 prime crew members NASA astronaut Mark Vande Hei, left, plays a game of chess with his crew mate Russian cosmonaut Pyotr Dubrov of Roscosmos Saturday, April 3, 2021, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Vande Hei, Dubrov and Oleg Novitskiy of Roscosmos are scheduled to launch to the International Space Station aboard the Soyuz MS-18 spacecraft on April 9. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 65 prime crew members Russian cosmonaut Oleg Novitskiy, left, and Pyotr Dubrov of Roscosmos take part in tilt table training Saturday, April 3, 2021, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Novitskiy, Dubrov, and NASA astronaut Mark Vande Hei, are scheduled to launch to the International Space Station aboard the Soyuz MS-18 spacecraft on April 9. Photo Credit: (NASA/GCTC/Irina Spector)

Roscosmos cosmonaut Pyotr Dubrov signs a mural at the Cosmonaut Hotel prior to departing for suit-up and launch on a Soyuz rocket with fellow crewmates Roscosmos cosmonaut Anna Kikina, and NASA astronaut Anil Menon, Tuesday, July 14, 2026, in Baikonur, Kazakhstan. The launch will send Menon, Dubrov, and Kikina on a mission to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 Roscosmos cosmonaut Pyotr Dubrov waves as he and fellow crew mates, NASA astronaut Anil Menon, and Roscosmos cosmonaut Anna Kikina depart the Cosmonaut Hotel to suit-up for their Soyuz launch, Tuesday, July 14, 2026, in Baikonur, Kazakhstan. The launch will send Menon, Dubrov, and Kikina on a mission to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 Roscosmos cosmonaut Pyotr Dubrov waves as he departs the Cosmonaut Hotel with crew mates Roscosmos cosmonaut Anna Kikina, and NASA astronaut Anil Menon, to suit-up for their Soyuz launch, Tuesday, July 14, 2026, in Baikonur, Kazakhstan. The launch will send Menon, Dubrov, and Kikina on a mission to the International Space Station. Photo Credit: (NASA/GCTC/Pavel Shvets)

Expedition 65 prime crew member, Russian cosmonaut Pyotr Dubrov of Roscosmos, boards the bus that will take him to his flight to Baikonur for launch from the Baikonur Cosmodrome, Friday, March 26, 2021 at the Gagarin Cosmonaut Training Center (GCTC) in Star City, Russia. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 65 Russian cosmonaut Pyotr Dubrov waves as he departs the Cosmonaut Hotel to suit-up with Russian cosmonaut Oleg Novitskiy and NASA astronaut Mark Vande Hei for their Soyuz launch to the International Space Station, Friday, April 9, 2021, in Baikonur, Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

Expedition 65 prime crew member Russian cosmonaut Pyotr Dubrov of Roscosmos lays flowers at the site where Russian space icons are interred as part of traditional pre-launch ceremonies, Wednesday, March 24, 2021, at Red Square in Moscow. Photo Credit: (NASA/GCTC/Andrey Shelepin)

NASA, Roscosmos, and Russian Search and Recovery Forces meet at the Cosmonaut Hotel in Karaganda, Kazakhstan to discuss the readiness for the landing of Expedition 66 crew members Mark Vande Hei of NASA, and Pyotr Dubrov, and Anton Shkaplerov of Roscosmos, Monday, March 28, 2022, at the Cosmonaut Hotel in Karaganda, Kazakhstan. Vande Hei and Dubrov will be returning to Earth after logging 355 days in space as members of Expeditions 64-66 aboard the International Space Station. For Vande Hei, his mission is the longest single spaceflight by a U.S. astronaut in history. Shkaplerov will be returning after 176 days in space, serving as a Flight Engineer for Expedition 65 and commander of Expedition 66. Photo Credit: (NASA/Bill Ingalls)

Expedition 66 Russian cosmonaut Pyotr Dubrov is carried to a medical tent shortly after he and fellow crew mates Mark Vande Hei of NASA and Anton Shkaplerov of Roscosmos landed in their Soyuz MS-19 spacecraft near the town of Zhezkazgan, Kazakhstan on Wednesday, March 30, 2022. Vande Hei and Dubrov are returning to Earth after logging 355 days in space as members of Expeditions 64-66 aboard the International Space Station. For Vande Hei, his mission is the longest single spaceflight by a U.S. astronaut in history. Shkaplerov is returning after 176 days in space, serving as a Flight Engineer for Expedition 65 and commander of Expedition 66. Photo Credit: (NASA/Bill Ingalls)

Expedition 65 prime crew members NASA astronaut Mark Vande Hei, left, and Russian cosmonauts Pyotr Dubrov, center, and Oleg Novitskiy of Roscosmos, pose for a photo after Dubrov planted a tree bearing his name as part of traditional pre-launch activities, Saturday, April 3, 2021, at the Cosmonaut Hotel in Baikonur, Kazakhstan. The trio are scheduled to launch to the International Space Station aboard the Soyuz MS-18 spacecraft on April 9. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 65 Russian cosmonaut Pyotr Dubrov walks to board the Soyuz MS-18 spacecraft for launch, Friday, April 9, 2021 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket sent Dubrov, NASA astronaut Mark Vande Hei and Russian cosmonaut Oleg Novitskiy on a mission to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 crewmembers: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov, and Anna Kikina, right, are seen in quarantine, behind glass, during a press conference, Monday, July 13, 2026 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Menon, Dubrov, and Kikina are scheduled to launch aboard the Soyuz MS-29 spacecraft to the International Space Station on July 14. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 crewmembers: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov and Anna Kikina, right, are seen in quarantine, behind glass, during a press conference, Monday, July 13, 2026 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Menon, Dubrov, and Kikina are scheduled to launch aboard the Soyuz MS-29 spacecraft to the International Space Station on July 14. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 crewmembers: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov, and Anna Kikina, right, are seen in quarantine, behind glass, during a press conference, Monday, July 13, 2026 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Menon, Dubrov, and Kikina are scheduled to launch aboard the Soyuz MS-29 spacecraft to the International Space Station on July 14. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 crewmembers: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov, and Anna Kikina, right, are seen in quarantine, behind glass, during a press conference, Monday, July 13, 2026 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Menon, Dubrov, and Kikina are scheduled to launch aboard the Soyuz MS-29 spacecraft to the International Space Station on July 14. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 crewmembers: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov, and Anna Kikina, right, are seen in quarantine, behind glass, during a press conference, Monday, July 13, 2026 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Menon, Dubrov, and Kikina are scheduled to launch aboard the Soyuz MS-29 spacecraft to the International Space Station on July 14. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 crew members: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov, and Anna Kikina, right, depart the Cosmonaut Hotel to suit-up for their Soyuz launch, Tuesday, July 14, 2026, in Baikonur, Kazakhstan. The launch will send Menon, Dubrov, and Kikina on a mission to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 crewmembers: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov and Anna Kikina, right, are seen in quarantine, behind glass, during a press conference, Monday, July 13, 2026 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Menon, Dubrov, and Kikina are scheduled to launch aboard the Soyuz MS-29 spacecraft to the International Space Station on July 14. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 crewmembers: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Anna Kikina, and Pyotr Dubrov, right, are seen in quarantine, behind glass, during a press conference, Monday, July 13, 2026 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Menon, Dubrov, and Kikina are scheduled to launch aboard the Soyuz MS-29 spacecraft to the International Space Station on July 14. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 crewmembers: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov, and Anna Kikina, right, are seen in quarantine, behind glass, during a press conference, Monday, July 13, 2026 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Menon, Dubrov, and Kikina are scheduled to launch aboard the Soyuz MS-29 spacecraft to the International Space Station on July 14. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 crewmembers: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov and Anna Kikina, right, are seen in quarantine, behind glass, during a press conference, Monday, July 13, 2026 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Menon, Dubrov, and Kikina are scheduled to launch aboard the Soyuz MS-29 spacecraft to the International Space Station on July 14. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 crewmembers: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov and Anna Kikina, right, are seen during the State Commission meeting to approve the Soyuz launch of Expedition 75 to the International Space Station, Monday, July 13, 2026 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Menon, Dubrov, and Kikina are scheduled to launch aboard the Soyuz MS-29 spacecraft to the International Space Station on July 14. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 crewmembers: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov and Anna Kikina, right, are seen in quarantine, behind glass, during a press conference, Monday, July 13, 2026 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Menon, Dubrov, and Kikina are scheduled to launch aboard the Soyuz MS-29 spacecraft to the International Space Station on July 14. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 crewmembers: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov and Anna Kikina, right, are seen in quarantine, behind glass, during a press conference, Monday, July 13, 2026 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Menon, Dubrov, and Kikina are scheduled to launch aboard the Soyuz MS-29 spacecraft to the International Space Station on July 14. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 crewmembers: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov and Anna Kikina, right, are seen in quarantine, behind glass, during a press conference, Monday, July 13, 2026 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Menon, Dubrov, and Kikina are scheduled to launch aboard the Soyuz MS-29 spacecraft to the International Space Station on July 14. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 crewmembers: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov, and Anna Kikina, right, are seen in quarantine, behind glass, during a press conference, Monday, July 13, 2026 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Menon, Dubrov, and Kikina are scheduled to launch aboard the Soyuz MS-29 spacecraft to the International Space Station on July 14. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 crew members: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov, and Anna Kikina, right, depart the Cosmonaut Hotel to suit-up for their Soyuz launch, Tuesday, July 14, 2026, in Baikonur, Kazakhstan. The launch will send Menon, Dubrov, and Kikina on a mission to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 crew members: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov, and Anna Kikina, right, depart the Cosmonaut Hotel to suit-up for their Soyuz launch, Tuesday, July 14, 2026, in Baikonur, Kazakhstan. The launch will send Menon, Dubrov, and Kikina on a mission to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 crew members: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov, and Anna Kikina, right, depart the Cosmonaut Hotel to suit-up for their Soyuz launch, Tuesday, July 14, 2026, in Baikonur, Kazakhstan. The launch will send Menon, Dubrov, and Kikina on a mission to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 crewmemebers: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov, and Anna Kikina, right, wave as they depart the Cosmonaut Hotel to suit-up for their Soyuz launch, Tuesday, July 14, 2026, in Baikonur, Kazakhstan. The launch will send Menon, Dubrov, and Kikina on a mission to the International Space Station. Photo Credit: (NASA/Victor Zelentsov)

Expedition 75 crew members: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov, and Anna Kikina, right, depart the Cosmonaut Hotel to suit-up for their Soyuz launch, Tuesday, July 14, 2026, in Baikonur, Kazakhstan. The launch will send Menon, Dubrov, and Kikina on a mission to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 65 NASA astronaut Mark Vande Hei, left, Roscosmos cosmonauts Oleg Novitskiy, center, and Pyotr Dubrov wave as they depart the Cosmonaut Hotel to suit-up for their Soyuz launch to the International Space Station, Friday, April 9, 2021, in Baikonur, Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

Expedition 65 prime crew member Russian cosmonaut Pyotr Dubrov of Roscosmos waves during a press conference prior to his launch from the Baikonur Cosmodrome in Kazakhstan, Wednesday, March 24, 2021 at the Gagarin Cosmonaut Training Center (GCTC) in Star City, Russia. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 65 prime crew member Russian cosmonaut Pyotr Dubrov of Roscosmos is seen during a press conference prior to his launch from the Baikonur Cosmodrome in Kazakhstan, Wednesday, March 24, 2021 at the Gagarin Cosmonaut Training Center (GCTC) in Star City, Russia. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 65 prime crew member Russian cosmonaut Pyotr Dubrov of Roscosmos speaks during a press conference prior to his launch from the Baikonur Cosmodrome in Kazakhstan, Wednesday, March 24, 2021 at the Gagarin Cosmonaut Training Center (GCTC) in Star City, Russia. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 65 NASA astronaut Mark Vande Hei, left, Roscosmos cosmonauts Oleg Novitskiy, center, and Pyotr Dubrov wave as they depart the Cosmonaut Hotel to suit-up for their Soyuz launch to the International Space Station, Friday, April 9, 2021, in Baikonur, Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 NASA astronaut Anil Menon, left, and Roscosmos cosmonaut Pyotr Dubrov, talk as they and Roscosmos cosmonaut Anna Kikina have their Russian Sokol suits pressure checked for their Soyuz launch to the International Space Station Tuesday, July 14, 2026 in Baikonur, Kazakhstan. Photo Credit: (NASA/GCTC/Pavel Shvets)

Expedition 65 prime crew members, NASA astronaut Mark Vande Hei, left, and Russian cosmonauts Oleg Novitskiy of Roscosmos, center, and Pyotr Dubrov of Roscosmos, right, arrive in Baikonur, Kazakhstan from the Gagarin Cosmonaut Training Center (GCTC), Friday, March 26, 2021. They are scheduled to launch from the Baikonur Cosmodrome on a Soyuz rocket April 9. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 65 prime crew members NASA astronaut Mark Vande Hei, left, and Russian cosmonauts Oleg Novitskiy, center, and Pyotr Dubrov, right, of Roscosmos practice rendezvous techniques on a laptop simulator, Saturday, April 3, 2021, at the Cosmonaut Hotel in Baikonur, Kazakhstan. They are scheduled to launch to the International Space Station aboard the Soyuz MS-18 spacecraft on April 9. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 65 prime crew members, NASA astronaut Mark Vande Hei, left, and Russian cosmonauts Oleg Novitskiy of Roscosmos, center, and Pyotr Dubrov of Roscosmos, right, meet with mission managers after arriving in Baikonur, Kazakhstan from the Gagarin Cosmonaut Training Center (GCTC), Friday, March 26, 2021. They are scheduled to launch from the Baikonur Cosmodrome on a Soyuz rocket April 9. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 65 prime crew member Pyotr Dubrov of Roscosmos has his Sokol suit pressure checked during a fit check to prepare for launch with crew mates Russian cosmonaut Oleg Novitskiy of Roscosmos and NASA astronaut Mark Vande Hei, Saturday, March 27, 2021 at the Baikonur Cosmodrome in Kazakhstan. They are scheduled to launch on a Soyuz rocket April 9. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 65 prime crew member Pyotr Dubrov of Roscosmos dons his Sokol suit during the fit check to prepare for launch with fellow Russian cosmonaut Oleg Novitskiy of Roscosmos, and NASA astronaut Mark Vande Hei, Saturday, March 27, 2021 at the Baikonur Cosmodrome in Kazakhstan. They are scheduled to launch on a Soyuz rocket April 9. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 65 prime crew member Pyotr Dubrov of Roscosmos dons his Sokol suit during the fit check to prepare for launch with fellow Russian cosmonaut Oleg Novitskiy of Roscosmos, and NASA astronaut Mark Vande Hei, Saturday, March 27, 2021 at the Baikonur Cosmodrome in Kazakhstan. They are scheduled to launch on a Soyuz rocket April 9. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 65 prime crew member Russian cosmonaut Pyotr Dubrov of Roscosmos pauses for a photo as he climbs inside the Soyuz MS-18 spacecraft during the final fit check to prepare for launch with fellow Russian cosmonaut Oleg Novitskiy of Roscosmos, and NASA astronaut Mark Vande Hei, Sunday, April 4, 2021 at the Baikonur Cosmodrome in Kazakhstan. The trio are scheduled to launch to the International Space Station on a Soyuz rocket April 9. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 65 prime crew member Pyotr Dubrov of Roscosmos has his Sokol suit pressure checked during a fit check to prepare for launch with crew mates Russian cosmonaut Oleg Novitskiy of Roscosmos and NASA astronaut Mark Vande Hei, Saturday, March 27, 2021 at the Baikonur Cosmodrome in Kazakhstan. They are scheduled to launch on a Soyuz rocket April 9. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 65 prime crew members, NASA astronaut Mark Vande Hei, and Russian cosmonauts Oleg Novitskiy of Roscosmos, and Pyotr Dubrov of Roscosmos, pose for a photo with Roscosmos mission managers after arriving in Baikonur, Kazakhstan from the Gagarin Cosmonaut Training Center (GCTC), Friday, March 26, 2021. They are scheduled to launch from the Baikonur Cosmodrome on a Soyuz rocket April 9. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 65 Russian cosmonaut Pyotr Dubrov performs the traditional door signing at the Cosmonaut Hotel prior to departing the hotel for launch on a Soyuz rocket with fellow crewmates Russian cosmonaut Oleg Novitskiy and NASA astronaut Mark Vande Hei, Friday, April 9, 2021, in Baikonur, Kazakhstan. Launch of the Soyuz rocket will sent the trio on a mission to the International Space Station. Photo Credit: (NASA/GCTC/Irina Spector

Expedition 65 prime crew member Oleg Novitskiy of Roscosmos, right, pauses for a photo as he climbs inside the Soyuz MS-18 spacecraft during the final fit check to prepare for launch with fellow Russian cosmonaut Pyotr Dubrov of Roscosmos, left, and NASA astronaut Mark Vande Hei, Sunday, April 4, 2021 at the Baikonur Cosmodrome in Kazakhstan. The trio are scheduled to launch to the International Space Station on a Soyuz rocket April 9. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 65 Russian cosmonaut Pyotr Dubrov receives the traditional blessing outside the Cosmonaut Hotel prior to departing the hotel for launch on a Soyuz rocket with fellow crewmates Russian cosmonaut Oleg Novitskiy and NASA astronaut Mark Vande Hei, Friday, April 9, 2021, in Baikonur, Kazakhstan. Launch of the Soyuz rocket sent the trio on a mission to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 65 prime crew members, NASA astronaut Mark Vande Hei, left, and Russian cosmonauts Oleg Novitskiy of Roscosmos, center, and Pyotr Dubrov of Roscosmos, right, meet with mission managers after arriving in Baikonur, Kazakhstan from the Gagarin Cosmonaut Training Center (GCTC), Friday, March 26, 2021. They are scheduled to launch from the Baikonur Cosmodrome on a Soyuz rocket April 9. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 65 prime crew members, NASA astronaut Mark Vande Hei, left, and Russian cosmonauts Oleg Novitskiy of Roscosmos, center, and Pyotr Dubrov of Roscosmos, right are greeted by onlookers after arriving in Baikonur, Kazakhstan from the Gagarin Cosmonaut Training Center (GCTC), Friday, March 26, 2021. They are scheduled to launch from the Baikonur Cosmodrome on a Soyuz rocket April 9. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 65 prime crew members, NASA astronaut Mark Vande Hei, left, and Russian cosmonauts Oleg Novitskiy of Roscosmos, center, and Pyotr Dubrov of Roscosmos, right, arrive in Baikonur, Kazakhstan from the Gagarin Cosmonaut Training Center (GCTC), Friday, March 26, 2021. They are scheduled to launch from the Baikonur Cosmodrome on a Soyuz rocket April 9. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 65 prime crew member Pyotr Dubrov of Roscosmos waters a tree bearing his name while crew mates NASA astronaut Mark Vande Hei, left, watches and Oleg Novitskiy of Roscosmos, holds it straight for him, as part of traditional pre-launch activities, Saturday, April 3, 2021, at the Cosmonaut Hotel in Baikonur, Kazakhstan. The trio are scheduled to launch to the International Space Station aboard the Soyuz MS-18 spacecraft on April 9. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 65 prime crew members NASA astronaut Mark Vande Hei, left, and Russian cosmonauts Oleg Novitskiy, center, and Pyotr Dubrov of Roscosmos, pose for a photo after a tree planting ceremony that is part of traditional pre-launch activities, Saturday, April 3, 2021, in Baikonur, Kazakhstan. The trio are scheduled to launch to the International Space Station aboard the Soyuz MS-18 spacecraft on April 9. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 65 prime crew member Russian cosmonaut Pyotr Dubrov of Roscosmos is seen inside the Soyuz MS-18 spacecraft during a fit check to prepare for launch with fellow Russian cosmonaut Oleg Novitskiy of Roscosmos and NASA astronaut Mark Vande Hei, Saturday, March 27, 2021 at the Baikonur Cosmodrome in Kazakhstan. They are scheduled to launch on a Soyuz rocket April 9. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 75 Roscosmos cosmonaut Pyotr Dubrov walks with Roscosmos Director of Human Spaceflight Programs Sergei Krikalev, left, and Roscosmos Director General Dmitry Bakanov to board the Soyuz MS-29 spacecraft for launch with NASA astronaut Anil Menon, and Roscosmos cosmonaut Anna Kikina, Tuesday, July 14, 2026 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket will send the trio on a mission to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 crewmembers: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov and Anna Kikina, and backup crew members: NASA astronaut Deniz Burnham, Roscosmos cosmonauts Dmitry Petelin and Konstantin Borisov, right, are seen during the State Commission meeting to approve the Soyuz launch of Expedition 75 to the International Space Station, Monday, July 13, 2026 at the Cosmonaut Hotel in Baikonur, Kazakhstan. Menon, Dubrov, and Kikina are scheduled to launch aboard the Soyuz MS-29 spacecraft to the International Space Station on July 14. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 crewmembers: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov and Anna Kikina, along with backup crewmemebers: NASA astronaut Deniz Burnham, Roscosmos cosmonauts Dmitry Petelin, and Konstantin Borisov, right, are seen in quarantine, behind glass, during a press conference, Monday, July 13, 2026 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Menon, Dubrov, and Kikina are scheduled to launch aboard the Soyuz MS-29 spacecraft to the International Space Station on July 14. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 crewmembers: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov and Anna Kikina, along with backup crewmemebers: NASA astronaut Deniz Burnham, Roscosmos cosmonauts Dmitry Petelin, and Konstantin Borisov, right, are seen in quarantine, behind glass, during a press conference, Monday, July 13, 2026 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Menon, Dubrov, and Kikina are scheduled to launch aboard the Soyuz MS-29 spacecraft to the International Space Station on July 14. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 crewmembers NASA astronaut Anil Menon, left, and Roscosmos cosmonauts Pyotr Dubrov and Anna Kikina, right, are seen during the State Commission meeting to approve the Soyuz MS-29 launch to the International Space Station, Monday, July 13, 2026, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Menon, Dubrov, and Kikina are scheduled to launch aboard the Soyuz MS-29 spacecraft to the International Space Station on July 14. Photo Credit: (NASA/John Kraus)

Expedition 75 crewmembers NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov and Anna Kikina, along with backup crew members Deniz Burnham of NASA and Dmitry Petelin and Konstantin Borisov of Roscosmos, right, are seen in quarantine, behind glass, during a press conference, Monday, July 13, 2026, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Menon, Dubrov, and Kikina are scheduled to launch aboard the Soyuz MS-29 spacecraft to the International Space Station on July 14. Photo Credit: (NASA/John Kraus)

Expedition 75 crewmembers: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov, and Anna Kikina, along with backup crewmemebers: NASA astronaut Deniz Burnham, Roscosmos cosmonauts Dmitry Petelin, and Konstantin Borisov, right, are seen in quarantine, behind glass, during a press conference, Monday, July 13, 2026 a the Cosmonaut Hotel in Baikonur, Kazakhstan. Menon, Dubrov, and Kikina are scheduled to launch aboard the Soyuz MS-29 spacecraft to the International Space Station on July 14. Photo Credit: (NASA/Bill Ingalls)

From left to right Expedition 65 backup crew members NASA astronaut Anne McClain and Russian cosmonaut Anton Shkaplerov of Roscosmos, and prime crew members NASA astronaut Mark Vande Hei, and Russian cosmonauts Pyotr Dubrov and Oleg Novitskiy of Roscosmos, and backup crew member Oleg Artemyev of Roscosmos pose for a photo after Dubrov planted a tree bearing his name as part of traditional pre-launch activities, Saturday, April 3, 2021, at the Cosmonaut Hotel in Baikonur, Kazakhstan. Vande Hei, Novitskiy and Dubrov are scheduled to launch to the International Space Station aboard the Soyuz MS-18 spacecraft on April 9. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 65 NASA astronaut Mark Vande Hei, left, Russian cosmonauts Oleg Novitskiy, center, and Pyotr Dubrov talk with mission management prior to their Soyuz launch to the International Space Station Friday, April 9, 2021 in Baikonur, Kazakhstan. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 65 NASA astronaut Mark Vande Hei, left, Russian cosmonauts Oleg Novitskiy, center, and Pyotr Dubrov report to Roscosmos mission management prior to their Soyuz launch to the International Space Station Friday, April 9, 2021 in Baikonur, Kazakhstan. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 65 NASA astronaut Mark Vande Hei, Russian cosmonauts Oleg Novitskiy and Pyotr Dubrov board the Soyuz MS-18 spacecraft for launch, Friday, April 9, 2021 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket sent the trio on a mission to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 65 NASA astronaut Mark Vande Hei, Russian cosmonauts Oleg Novitskiy and Pyotr Dubrov board the Soyuz MS-18 spacecraft for launch, Friday, April 9, 2021 at the Baikonur Cosmodrome in Kazakhstan. Launch of the Soyuz rocket sent the trio on a mission to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 crew members: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov, and Anna Kikina, right, prepare to have their Russian Sokol suits pressure checked as they ready for their Soyuz launch to the International Space Station Tuesday, July 14, 2026 in Baikonur, Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 crew members: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov, and Anna Kikina, right, prepare to have their Russian Sokol suits pressure checked as they ready for their Soyuz launch to the International Space Station Tuesday, July 14, 2026 in Baikonur, Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 crew members: Roscosmos cosmonauts Pyotr Dubrov, foreground, Anna Kikina, and NASA astronaut Anil Menon, background, prepare to have their Russian Sokol suits pressure checked as they ready for their Soyuz launch to the International Space Station Tuesday, July 14, 2026 in Baikonur, Kazakhstan. Photo Credit: (NASA/Bill Ingalls)

Expedition 75 crewmembers: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov, and Anna Kikina, right, report to Roscosmos leadership as they depart building 254 for their Soyuz launch to the International Space Station Tuesday, July 14, 2026 in Baikonur, Kazakhstan. Photo Credit: (NASA/Victor Zelentsov)

Expedition 75 crewmembers: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov, and Anna Kikina, right, depart building 254 for their Soyuz launch to the International Space Station Tuesday, July 14, 2026 in Baikonur, Kazakhstan. Photo Credit: (NASA/Victor Zelentsov)

Expedition 75 crewmemebers: NASA astronaut Anil Menon, left, Roscosmos cosmonauts Pyotr Dubrov, and Anna Kikina, right, have their Russian Sokol Suits pressure checked as they prepare for their Soyuz launch to the International Space Station Tuesday, July 14, 2026 in Baikonur, Kazakhstan. Photo Credit: (NASA/Victor Zelentsov)

NASA Administrator Jared Isaacman, right, and NASA Deputy Administrator Matt Anderson, left, speak with Expedition 75 crewmembers NASA astronaut Anil Menon and Roscosmos cosmonauts Pyotr Dubrov and Anna Kikina following pressure checks of their Russian Sokul suits before launch, Tuesday, July 14, 2026, at the Baikonur Cosmodrome in Kazakhstan. The launch will send NASA astronaut Anil Menon and Roscosmos cosmonauts Pyotr Dubrov and Anna Kikina to the International Space Station aboard the Soyuz MS-29 spacecraft. Photo Credit: (NASA/John Kraus)

Expedition 65 Russian cosmonaut Pyotr Dubrov is helped into his Russian Sokol suit as he and fellow crewmates Russian cosmonaut Oleg Novitskiy and NASA astronaut Mark Vande Hei, prepare for their Soyuz launch to the International Space Station Friday, April 9, 2021 in Baikonur, Kazakhstan. Launch of the Soyuz rocket sent the trio on a mission to the International Space Station. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 65 Russian cosmonaut Pyotr Dubrov has his Russian Sokol suit pressure checked as he and fellow crewmates Russian cosmonaut Oleg Novitskiy and NASA astronaut Mark Vande Hei, prepare for their Soyuz launch to the International Space Station Friday, April 9, 2021 in Baikonur, Kazakhstan. Launch of the Soyuz rocket sent the trio on a mission to the International Space Station. Photo Credit: (NASA/Bill Ingalls)

Expedition 65 prime crew members NASA astronaut Mark Vande Hei, left, and Russian cosmonaut Pyotr Dubrov of Roscosmos, center, watch as Russian cosmonaut Oleg Novitskiy of Roscosmos lays flowers at the site where Russian space icons are interred as part of traditional pre-launch ceremonies, Wednesday, March 24, 2021, at Red Square in Moscow. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 65 prime crew members Pyotr Dubrov of Roscosmos, left, Oleg Novitskiy of Roscosmos, center, and NASA astronaut Mark Vande Hei, right, are seen holding their Sokol suits during a fit check, Saturday, March 27, 2021 at the Baikonur Cosmodrome in Kazakhstan. They are scheduled to launch on a Soyuz rocket April 9. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 65 NASA astronaut Mark Vande Hei, left, Roscosmos cosmonauts Oleg Novitskiy and Pyotr Dubrov, right, are seen during the State Commission meeting to approve the Soyuz launch of Expedition 65 to the International Space Station, Thursday, April 8, 2021 at the Cosmonaut Hotel in Baikonur, Kazakhstan. The trio are scheduled to launch to the International Space Station aboard the Soyuz MS-18 spacecraft on April 9. Photo Credit: (NASA/Bill Ingalls)

Expedition 65 Russian cosmonaut Pyotr Dubrov has his Russian Sokol suit pressure checked as he and fellow crewmates NASA astronaut Mark Vande Hei and Russian cosmonaut Oleg Novitskiyprepare for their Soyuz launch to the International Space Station Friday, April 9, 2021 in Baikonur, Kazakhstan. Launch of the Soyuz rocket sent the trio on a mission to the International Space Station. Photo Credit: (NASA/GCTC/Irina Spector)

Expedition 65 Roscosmos cosmonauts Oleg Novitskiy , left, Pyotr Dubrov, center, and NASA astronaut Mark Vande Hei, wave as they depart the Cosmonaut Hotel to suit-up for their Soyuz launch to the International Space Station, Friday, April 9, 2021, in Baikonur, Kazakhstan. Later that same day the crew launched in their Soyuz MS-18 spacecraft to the International Space Station. Photo Credit: (NASA/GCTC/Irina Spector

Expedition 65 NASA astronaut Mark Vande Hei, left, Roscosmos cosmonauts Oleg Novitskiy and Pyotr Dubrov, right, are seen in quarantine, behind glass, during a press conference, Thursday, April 8, 2021 a the Cosmonaut Hotel in Baikonur, Kazakhstan. The trio is scheduled to launch to the International Space Station aboard the Soyuz MS-18 spacecraft on April 9. Photo Credit: (NASA/Bill Ingalls)

Expedition 65 prime crew members, Russian cosmonauts Pyotr Dubrov of Roscosmos, left, and Oleg Novitskiy of Roscosmos, wave goodbye after boarding the bus to their flight to Baikonur for launch from the Baikonur Cosmodrome, Friday, March 26, 2021 at the Gagarin Cosmonaut Training Center (GCTC) in Star City, Russia. Photo Credit: (NASA/GCTC/Andrey Shelepin)

Expedition 65 crew member Pyotr Dubrov of Roscosmos, signs in for Soyuz qualification exams Monday, March 22, 2021, at the Gagarin Cosmonaut Training Center (GCTC) in Star City, Russia, in advance of his scheduled launch April 9 from Baikonur Cosmodrome in Kazakhstan to the International Space Station. Photo Credit: (NASA/GCTC/Andrey Shelepin)