Friends and family members of the Soyuz MS-08 crew watch a live view of the International Space Station, as seen by cameras onboard the spacecraft with Expedition 55-56 crewmembers Oleg Artemyev of Roscosmos and Ricky Arnold and Drew Feustel of NASA, on screens at the Moscow Mission Control Center as the spacecraft approaches for docking, Friday, March 23, 2018 in Korolev, Russia. The Soyuz MS-08 spacecraft carrying Artemyev, Feustel, and Arnold docked at 3:40 p.m. Eastern time (10:40 p.m. Moscow time) and joined Expedition 55 Commander Anton Shkaplerov of Roscosmos, Scott Tingle of NASA, and Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA). Photo Credit: (NASA/Joel Kowsky)

Expedition 55 flight engineer Drew Feustel of NASA is seen after the hatches were opened between the Soyuz MS-08 spacecraft and the International Space Station on screens at the Moscow Mission Control Center in Korolev, Russia, Saturday, March 24, 2018, a few hours after the Soyuz MS-08 docked to the International Space Station. Hatches were opened at 5:48 p.m. Eastern time on March 23 (12:48 a.m. Moscow time on March 24) and Feustel, Oleg Artemyev of Roscosmos, and Ricky Arnold of NASA joined Expedition 55 Commander Anton Shkaplerov of Roscosmos, Scott Tingle of NASA, and Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA) onboard the orbiting laboratory. Photo Credit: (NASA/Joel Kowsky)

NASA Associate Administrator for the Human Exploration and Operations Mission Directorate Bill Gerstenmaier speaks with the Soyuz MS-08 crew from the Moscow Mission Control Center in Korolev, Russia a few hours after the Soyuz MS-08 docked to the International Space Station on Saturday, March 24, 2018. Hatches were opened at 5:48 p.m. Eastern time on March 23 (12:48 a.m. Moscow time on March 24) and Oleg Artemyev of Roscosmos, Ricky Arnold of NASA and Drew Feustel of NASA joined Expedition 55 Commander Anton Shkaplerov of Roscosmos, Scott Tingle of NASA, and Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA) onboard the orbiting laboratory. Photo Credit: (NASA/Joel Kowsky)

Guests watch a live view of the International Space Station, as seen by cameras onboard the Soyuz MS-08 spacecraft with Expedition 55-56 crewmembers Oleg Artemyev of Roscosmos and Ricky Arnold and Drew Feustel of NASA, on screens at the Moscow Mission Control Center as the spacecraft approaches for docking, Friday, March 23, 2018 in Korolev, Russia. The Soyuz MS-08 spacecraft carrying Artemyev, Feustel, and Arnold docked at 3:40 p.m. Eastern time (10:40 p.m. Moscow time) and joined Expedition 55 Commander Anton Shkaplerov of Roscosmos, Scott Tingle of NASA, and Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA). Photo Credit: (NASA/Joel Kowsky)

Expedition 55 flight engineer Ricky Arnold of NASA is seen after the hatches were opened between the Soyuz MS-08 spacecraft and the International Space Station on screens at the Moscow Mission Control Center in Korolev, Russia, Saturday, March 24, 2018, a few hours after the Soyuz MS-08 docked to the International Space Station. Hatches were opened at 5:48 p.m. Eastern time on March 23 (12:48 a.m. Moscow time on March 24) and Arnold, Oleg Artemyev of Roscosmos, and Drew Feustel of NASA joined Expedition 55 Commander Anton Shkaplerov of Roscosmos, Scott Tingle of NASA, and Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA) onboard the orbiting laboratory. Photo Credit: (NASA/Joel Kowsky)

Icons for the International Space Station and Soyuz MS-08 spacecraft are seen on a tracking map on a screen in the Moscow Mission Control Center as the spacecraft approaches for docking, Friday, March 23, 2018 in Korolev, Russia. The Soyuz MS-08 spacecraft carrying Expedition 55-56 crewmembers Oleg Artemyev of Roscosmos and Ricky Arnold and Drew Feustel of NASA docked at 3:40 p.m. Eastern time (10:40 p.m. Moscow time) on March 23 and joined Expedition 55 Commander Anton Shkaplerov of Roscosmos, Scott Tingle of NASA, and Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA). Photo Credit: (NASA/Joel Kowsky)

NASA Associate Administrator for the Human Exploration and Operations Mission Directorate Bill Gerstenmaier speaks with the Soyuz MS-08 crew from the Moscow Mission Control Center in Korolev, Russia a few hours after the Soyuz MS-08 docked to the International Space Station on Saturday, March 24, 2018. Hatches were opened at 5:48 p.m. Eastern time on March 23 (12:48 a.m. Moscow time on March 24) and Oleg Artemyev of Roscosmos, Ricky Arnold of NASA and Drew Feustel of NASA joined Expedition 55 Commander Anton Shkaplerov of Roscosmos, Scott Tingle of NASA, and Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA) onboard the orbiting laboratory. Photo Credit: (NASA/Joel Kowsky)

A live view of the International Space Station, as seen by cameras onboard the Soyuz MS-08 spacecraft with Expedition 55-56 crewmembers Oleg Artemyev of Roscosmos and Ricky Arnold and Drew Feustel of NASA, is seen on screens at the Moscow Mission Control Center as the spacecraft approaches for docking, Friday, March 23, 2018 in Korolev, Russia. The Soyuz MS-08 spacecraft carrying Artemyev, Feustel, and Arnold docked at 3:40 p.m. Eastern time (10:40 p.m. Moscow time) and joined Expedition 55 Commander Anton Shkaplerov of Roscosmos, Scott Tingle of NASA, and Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA). Photo Credit: (NASA/Joel Kowsky)

A live view of the International Space Station, as seen by cameras onboard the Soyuz MS-08 spacecraft with Expedition 55-56 crewmembers Oleg Artemyev of Roscosmos and Ricky Arnold and Drew Feustel of NASA, is seen on screens at the Moscow Mission Control Center as the spacecraft approaches for docking, Friday, March 23, 2018 in Korolev, Russia. The Soyuz MS-08 spacecraft carrying Artemyev, Feustel, and Arnold docked at 3:40 p.m. Eastern time (10:40 p.m. Moscow time) and joined Expedition 55 Commander Anton Shkaplerov of Roscosmos, Scott Tingle of NASA, and Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA). Photo Credit: (NASA/Joel Kowsky)

NASA International Space Station Program Manager Kirk Shireman speaks with the Expedition 54 crew from the Moscow Mission Control Center in Korolev, Russia a few hours after the Soyuz MS-07 docked to the International Space Station on Tuesday, Dec. 19, 2017. Hatches were opened at 5:55 a.m. EST and Anton Shkaplerov of Roscosmos, Scott Tingle of NASA, and Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA) joined Expedition 54 Commander Alexander Misurkin of Roscosmos and crewmates Mark Vande Hei and Joe Acaba of NASA aboard the orbiting laboratory. Photo Credit: (NASA/Joel Kowsky)

A live view of the International Space Station, as seen by cameras onboard the spacecraft with Expedition 56-57 crewmembers Serena Auñón-Chancellor of NASA, Sergey Prokopyev of Roscosmos, and Alexander Gerst of ESA (European Space Agency) is seen on screens at the Moscow Mission Control Center as the spacecraft approaches for docking, Friday, June 8, 2018 in Korolev, Russia. The Soyuz MS-09 spacecraft carrying Auñón-Chancellor, Prokopyev, and Gerst docked at 9:01am EDT (4:01pm Moscow time) to the Rassvet module of the International Space Station to join Expedition 56 Commander Drew Feustel of NASA and flight engineers Ricky Arnold of NASA and Oleg Artemyev of Roscosmos. Photo Credit: (NASA/Joel Kowsky)

NASA Associate Administrator for the Human Exploration and Operations Mission Directorate William Gerstenmaier speaks with the Soyuz MS-09 crew from the Moscow Mission Control Center in Korolev, Russia a few hours after the Soyuz MS-09 docked to the International Space Station on Friday, June 8, 2018. Hatches were opened at 11:17am EDT (6:17pm Moscow time) and Sergey Prokopyev of Roscosmos, Serena Auñón-Chancellor of NASA, and Alexander Gerst of ESA (European Space Agency) joined Expedition 56 Commander Drew Feustel of NASA, Ricky Arnold of NASA, and Oleg Artemyev of Roscosmos onboard the orbiting laboratory. Photo Credit: (NASA/Joel Kowsky)

A live view of the International Space Station, as seen by cameras onboard the spacecraft with Expedition 56-57 crewmembers Serena Auñón-Chancellor of NASA, Sergey Prokopyev of Roscosmos, and Alexander Gerst of ESA (European Space Agency) is seen on screens at the Moscow Mission Control Center as the spacecraft approaches for docking, Friday, June 8, 2018 in Korolev, Russia. The Soyuz MS-09 spacecraft carrying Auñón-Chancellor, Prokopyev, and Gerst docked at 9:01am EDT (4:01pm Moscow time) to the Rassvet module of the International Space Station to join Expedition 56 Commander Drew Feustel of NASA and flight engineers Ricky Arnold of NASA and Oleg Artemyev of Roscosmos. Photo Credit: (NASA/Joel Kowsky)

Friends and family members of the Soyuz MS-07 crew watch a live view of the International Space Station, as seen by cameras onboard the spacecraft with Expedition 54-55 crewmembers Anton Shkaplerov of Roscosmos, Scott Tingle of NASA, and Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA) onboard, on screens at the Moscow Mission Control Center as the spacecraft approaches for docking, Tuesday, Dec. 19, 2017 in Korolev, Russia. The Soyuz MS-07 spacecraft carrying Shkaplerov, Tingle, and Kanai docked with the International Space Station at 3:39 a.m. EST, Tuesday, Dec. 19 while 250 statute miles over the southern coast of Italy and joined Expedition 54 Commander Alexander Misurkin of Roscosmos, and NASA astronauts Joe Acaba and Mark Vande Hei. Photo Credit: (NASA/Joel Kowsky)

Guests watch a live view of the International Space Station, as seen by cameras onboard the spacecraft with Expedition 56-57 crewmembers Serena Auñón-Chancellor of NASA, Sergey Prokopyev of Roscosmos, and Alexander Gerst of ESA (European Space Agency), on screens at the Moscow Mission Control Center as the spacecraft approaches for docking, Friday, June 8, 2018 in Korolev, Russia. The Soyuz MS-09 spacecraft carrying Auñón-Chancellor, Prokopyev, and Gerst docked at 9:01am EDT (4:01pm Moscow time) to the Rassvet module of the International Space Station to join Expedition 56 Commander Drew Feustel of NASA and flight engineers Ricky Arnold of NASA and Oleg Artemyev of Roscosmos. Photo Credit: (NASA/Joel Kowsky)

U.S. Ambassador to Russia Jon Huntsman Jr. is seen in the Moscow Mission Control Center in Korolev, Russia while waiting to speak with the Soyuz MS-07 crew after their docking with the International Space Station, Tuesday, Dec. 19, 2017. Hatches were opened at 5:55 a.m. EST and Anton Shkaplerov of Roscosmos, Scott Tingle of NASA, and Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA) joined Expedition 54 Commander Alexander Misurkin of Roscosmos and crewmates Mark Vande Hei and Joe Acaba of NASA aboard the orbiting laboratory. Photo Credit: (NASA/Joel Kowsky)

Expedition 55 flight engineer Oleg Artemyev of Roscosmos is seen embracing Scott Tingle of NASA after the hatches were opened between the Soyuz MS-08 spacecraft and the International Space Station on screens at the Moscow Mission Control Center in Korolev, Russia, Saturday, March 24, 2018, a few hours after the Soyuz MS-08 docked to the International Space Station. Hatches were opened at 5:48 p.m. Eastern time on March 23 (12:48 a.m. Moscow time on March 24) and Artemyev, Ricky Arnold of NASA and Drew Feustel of NASA joined Expedition 55 Commander Anton Shkaplerov of Roscosmos, Scott Tingle of NASA, and Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA) onboard the orbiting laboratory. Photo Credit: (NASA/Joel Kowsky)

Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA) is seen after the opening of the hatches between the Soyuz MS-07 spacecraft and the International Space Station on the screens in the Moscow Mission Control Center in Korolev, Russia a few hours after the Soyuz MS-07 docked to the International Space Station on Tuesday, Dec. 19, 2017. Hatches were opened at 5:55 a.m. EST and Shkaplerov, Scott Tingle of NASA, and Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA) joined Expedition 54 Commander Alexander Misurkin of Roscosmos and crewmates Mark Vande Hei and Joe Acaba of NASA aboard the orbiting laboratory. Photo Credit: (NASA/Joel Kowsky)

U.S. Ambassador to Russia Jon Huntsman Jr. speaks with the Soyuz MS-07 crew from the Moscow Mission Control Center in Korolev, Russia a few hours after the Soyuz MS-07 docked to the International Space Station on Tuesday, Dec. 19, 2017. Hatches were opened at 5:55 a.m. EST and Anton Shkaplerov of Roscosmos, Scott Tingle of NASA, and Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA) joined Expedition 54 Commander Alexander Misurkin of Roscosmos and crewmates Mark Vande Hei and Joe Acaba of NASA aboard the orbiting laboratory. Photo Credit: (NASA/Joel Kowsky)

Japan Aerospace Exploration Agency (JAXA) International Space Station Program Manager Koichi Wakata speaks with the Expedition 54 crew from the Moscow Mission Control Center in Korolev, Russia a few hours after the Soyuz MS-07 docked to the International Space Station on Tuesday, Dec. 19, 2017. Hatches were opened at 5:55 a.m. EST and Anton Shkaplerov of Roscosmos, Scott Tingle of NASA, and Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA) joined Expedition 54 Commander Alexander Misurkin of Roscosmos and crewmates Mark Vande Hei and Joe Acaba of NASA aboard the orbiting laboratory. Photo Credit: (NASA/Joel Kowsky)

Friends and family members of the Soyuz MS-07 crew watch a live view of the International Space Station, as seen by cameras onboard the spacecraft with Expedition 54-55 crewmembers Anton Shkaplerov of Roscosmos, Scott Tingle of NASA, and Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA) onboard, on screens at the Moscow Mission Control Center as the spacecraft approaches for docking, Tuesday, Dec. 19, 2017 in Korolev, Russia. The Soyuz MS-07 spacecraft carrying Shkaplerov, Tingle, and Kanai docked with the International Space Station at 3:39 a.m. EST, Tuesday, Dec. 19 while 250 statute miles over the southern coast of Italy and joined Expedition 54 Commander Alexander Misurkin of Roscosmos, and NASA astronauts Joe Acaba and Mark Vande Hei. Photo Credit: (NASA/Joel Kowsky)

Scott Tingle of NASA is seen embracing Expedition 54 Commander Alexander Misurkin after the opening of the hatches between the Soyuz MS-07 spacecraft and the International Space Station on the screens in the Moscow Mission Control Center in Korolev, Russia a few hours after the Soyuz MS-07 docked to the International Space Station on Tuesday, Dec. 19, 2017. Hatches were opened at 5:55 a.m. EST and Tingle, Anton Shkaplerov of Roscosmos, and Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA) joined Expedition 54 Commander Alexander Misurkin of Roscosmos and crewmates Mark Vande Hei and Joe Acaba of NASA aboard the orbiting laboratory. Photo Credit: (NASA/Joel Kowsky)

Icons for the International Space Station and Soyuz MS-09 spacecraft are seen on a tracking map on a screen in the Moscow Mission Control Center as the spacecraft approaches for docking, Friday, June 8, 2018 in Korolev, Russia. The Soyuz MS-09 spacecraft carrying Serena Auñón-Chancellor of NASA, Sergey Prokopyev of Roscosmos, and Alexander Gerst of ESA (European Space Agency) docked at 9:01am EDT (4:01pm Moscow time) to the Rassvet module of the International Space Station to join Expedition 56 Commander Drew Feustel of NASA and flight engineers Ricky Arnold of NASA and Oleg Artemyev of Roscosmos. Photo Credit: (NASA/Joel Kowsky)

Expedition 55 Commander Anton Shkaplerov of Roscosmos is seen on screen greeting Oleg Artemyev of Roscosmos the hatches were opened between the Soyuz MS-08 spacecraft and the International Space Station at the Moscow Mission Control Center in Korolev, Russia, Saturday, March 24, 2018, a few hours after the Soyuz MS-08 docked to the International Space Station. Hatches were opened at 5:48 p.m. Eastern time on March 23 (12:48 a.m. Moscow time on March 24) and Artemyev, Ricky Arnold of NASA, and Drew Feustel of NASA joined Expedition 55 Commander Anton Shkaplerov of Roscosmos, Scott Tingle of NASA, and Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA) onboard the orbiting laboratory. Photo Credit: (NASA/Joel Kowsky)

Anton Shkaplerov of Roscosmos is seen after the opening of the hatches between the Soyuz MS-07 spacecraft and the International Space Station on the screens in the Moscow Mission Control Center in Korolev, Russia a few hours after the Soyuz MS-07 docked to the International Space Station on Tuesday, Dec. 19, 2017. Hatches were opened at 5:55 a.m. EST and Shkaplerov, Scott Tingle of NASA, and Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA) joined Expedition 54 Commander Alexander Misurkin of Roscosmos and crewmates Mark Vande Hei and Joe Acaba of NASA aboard the orbiting laboratory. Photo Credit: (NASA/Joel Kowsky)

A live view of the International Space Station, as seen by cameras onboard the spacecraft with Expedition 56-57 crewmembers Serena Auñón-Chancellor of NASA, Sergey Prokopyev of Roscosmos, and Alexander Gerst of ESA (European Space Agency) is seen on screens at the Moscow Mission Control Center as the spacecraft approaches for docking, Friday, June 8, 2018 in Korolev, Russia. The Soyuz MS-09 spacecraft carrying Auñón-Chancellor, Prokopyev, and Gerst docked at 9:01am EDT (4:01pm Moscow time) to the Rassvet module of the International Space Station to join Expedition 56 Commander Drew Feustel of NASA and flight engineers Ricky Arnold of NASA and Oleg Artemyev of Roscosmos. Photo Credit: (NASA/Joel Kowsky)

U.S. Ambassador to Russia Jon Huntsman Jr. is seen during an interview with NASA Public Affairs Office Rob Navias in the Moscow Mission Control Center in Korolev, Russia after the Soyuz MS-07 spacecraft docked with the International Space Station, Tuesday, Dec. 19, 2017. Photo Credit: (NASA/Joel Kowsky)

Expedition 56 flight engineer Alexander Gerst of ESA (European Space Agency) is seen after the hatches were opened between the Soyuz MS-09 spacecraft and the International Space Station on screens at the Moscow Mission Control Center in Korolev, Russia a few hours after the Soyuz MS-09 docked to the International Space Station on Friday, June 8, 2018. Hatches were opened at 11:17am EDT (6:17pm Moscow time) and Gerst, Serena Auñón-Chancellor of NASA, and Sergey Prokopyev of Roscosmos joined Expedition 56 Commander Drew Feustel of NASA, Ricky Arnold of NASA, and Oleg Artemyev of Roscosmos onboard the orbiting laboratory. Photo Credit: (NASA/Joel Kowsky)

Expedition 56 flight engineers Ricky Arnold of NASA, left, Oleg Artemyev of Roscosmos, center, and Commander Drew Feustel are seen waving as they wait for the Soyuz hatch to open on a screen in the Moscow Mission Control Center in Korolev, Russia a few hours after the Soyuz MS-09 docked to the International Space Station on Friday, June 8, 2018. Hatches were opened at 11:17am EDT (6:17pm Moscow time) and Serena Auñón-Chancellor of NASA, Sergey Prokopyev of Roscosmos, and Alexander Gerst of ESA (European Space Agency) joined Expedition 56 Commander Drew Feustel of NASA, Ricky Arnold of NASA, and Oleg Artemyev of Roscosmos onboard the orbiting laboratory. Photo Credit: (NASA/Joel Kowsky)

Expedition 56 flight engineer Serena Auñón-Chancellor of NASA is seen after the hatches were opened between the Soyuz MS-09 spacecraft and the International Space Station on screens at the Moscow Mission Control Center in Korolev, Russia a few hours after the Soyuz MS-09 docked to the International Space Station on Friday, June 8, 2018. Hatches were opened at 11:17am EDT (6:17pm Moscow time) and Auñón-Chancellor, Alexander Gerst of ESA (European Space Agency), and Sergey Prokopyev of Roscosmos joined Expedition 56 Commander Drew Feustel of NASA, Ricky Arnold of NASA, and Oleg Artemyev of Roscosmos onboard the orbiting laboratory. Photo Credit: (NASA/Joel Kowsky)

Icons for the International Space Station and Soyuz MS-07 spacecraft are seen on a tracking map on a screen in the Moscow Mission Control Center as the spacecraft approaches for docking, Tuesday, Dec. 19, 2017 in Korolev, Russia. The Soyuz MS-07 spacecraft carrying Anton Shkaplerov of Roscosmos, Scott Tingle of NASA, and Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA) docked with the International Space Station at 3:39 a.m. EST, Tuesday, Dec. 19 while 250 statute miles over the southern coast of Italy and joined Expedition 54 Commander Alexander Misurkin of Roscosmos, and NASA astronauts Joe Acaba and Mark Vande Hei. Photo Credit: (NASA/Joel Kowsky)

Friends and family members of the Soyuz MS-07 crew watch a live view of the International Space Station, as seen by cameras onboard the spacecraft with Expedition 54-55 crewmembers Anton Shkaplerov of Roscosmos, Scott Tingle of NASA, and Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA) onboard, on screens at the Moscow Mission Control Center as the spacecraft approaches for docking, Tuesday, Dec. 19, 2017 in Korolev, Russia. The Soyuz MS-07 spacecraft carrying Shkaplerov, Tingle, and Kanai docked with the International Space Station at 3:39 a.m. EST, Tuesday, Dec. 19 while 250 statute miles over the southern coast of Italy and joined Expedition 54 Commander Alexander Misurkin of Roscosmos, and NASA astronauts Joe Acaba and Mark Vande Hei. Photo Credit: (NASA/Joel Kowsky)

Icons for the International Space Station and Soyuz MS-07 spacecraft are seen on a tracking map along with live video of the International Space Station are seen on screen in the Moscow Mission Control Center as the Soyuz MS-07 spacecraft approaches for docking, Tuesday, Dec. 19, 2017 in Korolev, Russia. The Soyuz MS-07 spacecraft carrying Anton Shkaplerov of Roscosmos, Scott Tingle of NASA, and Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA) docked with the International Space Station at 3:39 a.m. EST, Tuesday, Dec. 19 while 250 statute miles over the southern coast of Italy and joined Expedition 54 Commander Alexander Misurkin of Roscosmos, and NASA astronauts Joe Acaba and Mark Vande Hei. Photo Credit: (NASA/Joel Kowsky)

Expedition 54 flight engineers Scott Tingle of NASA, bottom left, Anton Shkaplerov of Roscosmos, bottom center, and Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA) bottom right, are seen with flight engineer Joe Acaba of NASA, top left, Commander Alexander Misurkin, top center, and flight engineer Mark Vande Hei of NASA, top right, on a video monitor as they speak with family and friends at the Moscow Mission Control Center in Korolev, Russia a few hours after the Soyuz MS-07 docked to the International Space Station on Tuesday, Dec. 19, 2017. Photo Credit: (NASA/Joel Kowsky)

Expedition 55 flight engineers Ricky Arnold of NASA, bottom left, Oleg Artemyev of Roscosmos, bottom center, and Drew Feustel of NASA, bottom right are seen with flight enginner Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA), top left, Commander Anton Shkaplerov of Roscosmos, top center, and flight engineer Scott Tingle of NASA, top right, on a video monitor as they talk to family and friends at the Moscow Mission Control Center in Korolev, Russia a few hours after the Soyuz MS-08 docked to the International Space Station on Saturday, March 24, 2018. Hatches were opened at 5:48 p.m. Eastern time on March 23, 12:48 a.m. Moscow time on March 24. Photo Credit: (NASA/Joel Kowsky)

Expedition 56 flight engineers Sergey Prokopyev of Roscosmos, bottom left, Alexander Gerst of ESA (European Space Agency), bottom center, and Serena Auñón-Chancellor of NASA, bottom right, are seen with flight engineer Oleg Artemyev of Roscosmos, top left, Commander Drew Feustel of NASA, top center, and flight engineer Ricky Arnold of NASA, top right, are seen on a video monitor as they talk to family and friends at the Moscow Mission Control Center in Korolev, Russia a few hours after the Soyuz MS-09 docked to the International Space Station on Friday, June 8, 2018. Hatches were opened at 11:17am EDT (6:17pm Moscow time). Photo Credit: (NASA/Joel Kowsky)

U.S. Ambassador to Russia Jon Huntsman Jr., right, is seen during an interview with NASA Public Affairs Officer Rob Navias, left, in the Moscow Mission Control Center in Korolev, Russia after the Soyuz MS-07 spacecraft docked with the International Space Station, Tuesday, Dec. 19, 2017. Photo Credit: (NASA/Joel Kowsky)

Expedition 55 flight engineers Ricky Arnold of NASA, bottom left, Oleg Artemyev of Roscosmos, bottom center, and Drew Feustel of NASA, bottom right are seen with flight engineer Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA), top left, Commander Anton Shkaplerov of Roscosmos, top center, and flight engineer Scott Tingle of NASA, top right, on a video monitor as they talk to family and friends at the Moscow Mission Control Center in Korolev, Russia a few hours after the Soyuz MS-08 docked to the International Space Station on Saturday, March 24, 2018. Hatches were opened at 5:48 p.m. Eastern time on March 23, 12:48 a.m. Moscow time on March 24. Photo Credit: (NASA/Joel Kowsky)

Expedition 56 flight engineers Sergey Prokopyev of Roscosmos, bottom left, Alexander Gerst of ESA (European Space Agency), bottom center, and Serena Auñón-Chancellor of NASA, bottom right, are seen with flight engineer Oleg Artemyev of Roscosmos, top left, Commander Drew Feustel of NASA, top center, and flight engineer Ricky Arnold of NASA, top right, are seen on a video monitor as they talk to family and friends at the Moscow Mission Control Center in Korolev, Russia a few hours after the Soyuz MS-09 docked to the International Space Station on Friday, June 8, 2018. Hatches were opened at 11:17am EDT (6:17pm Moscow time). Photo Credit: (NASA/Joel Kowsky)

Expedition 56 flight engineers Sergey Prokopyev of Roscosmos, bottom left, Alexander Gerst of ESA (European Space Agency), bottom center, and Serena Auñón-Chancellor of NASA, bottom right, are seen with flight engineer Oleg Artemyev of Roscosmos, top left, Commander Drew Feustel of NASA, top center, and flight engineer Ricky Arnold of NASA, top right, are seen on a video monitor as they talk to family and friends at the Moscow Mission Control Center in Korolev, Russia a few hours after the Soyuz MS-09 docked to the International Space Station on Friday, June 8, 2018. Hatches were opened at 11:17am EDT (6:17pm Moscow time). Photo Credit: (NASA/Joel Kowsky)

Expedition 55 flight engineers Ricky Arnold of NASA, bottom left, Oleg Artemyev of Roscosmos, bottom center, and Drew Feustel of NASA, bottom right are seen with flight engineer Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA), top left, Commander Anton Shkaplerov of Roscosmos, top center, and flight engineer Scott Tingle of NASA, top right, on a video monitor as they talk to family and friends at the Moscow Mission Control Center in Korolev, Russia a few hours after the Soyuz MS-08 docked to the International Space Station on Saturday, March 24, 2018. Hatches were opened at 5:48 p.m. Eastern time on March 23, 12:48 a.m. Moscow time on March 24. Photo Credit: (NASA/Joel Kowsky)

Expedition 54 flight engineers Scott Tingle of NASA, bottom left, Anton Shkaplerov of Roscosmos, bottom center, and Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA) bottom right, are seen with flight engineer Joe Acaba of NASA, top left, Commander Alexander Misurkin, top center, and flight engineer Mark Vande Hei of NASA, top right, on a video monitor as they U.S. Ambassador to Russia Jon Huntsman Jr. at the Moscow Mission Control Center in Korolev, Russia a few hours after the Soyuz MS-07 docked to the International Space Station on Tuesday, Dec. 19, 2017. Photo Credit: (NASA/Joel Kowsky)

NASA International Space Station Program Manager Kirk Shireman, right, speaks with U.S. Ambassador to Russia Jon Huntsman Jr., left, at the Moscow Mission Control Center in Korolev, Russia a few hours after the Soyuz MS-07 docked to the International Space Station on Tuesday, Dec. 19, 2017. Photo Credit: (NASA/Joel Kowsky)

Expedition 54 flight engineers Scott Tingle of NASA, bottom left, Anton Shkaplerov of Roscosmos, bottom center, and Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA) bottom right, are seen with flight engineer Joe Acaba of NASA, top left, Commander Alexander Misurkin, top center, and flight engineer Mark Vande Hei of NASA, top right, on a video monitor as they speak with family and friends at the Moscow Mission Control Center in Korolev, Russia a few hours after the Soyuz MS-07 docked to the International Space Station on Tuesday, Dec. 19, 2017. Photo Credit: (NASA/Joel Kowsky)

Expedition 54 flight engineers Scott Tingle of NASA, bottom left, Anton Shkaplerov of Roscosmos, bottom center, and Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA) bottom right, are seen with flight engineer Joe Acaba of NASA, top left, Commander Alexander Misurkin, top center, and flight engineer Mark Vande Hei of NASA, top right, on a video monitor as they U.S. Ambassador to Russia Jon Huntsman Jr. at the Moscow Mission Control Center in Korolev, Russia a few hours after the Soyuz MS-07 docked to the International Space Station on Tuesday, Dec. 19, 2017. Photo Credit: (NASA/Joel Kowsky)