Expedition 55 prime crew members Ricky Arnold of NASA, left, Oleg Artemyev of Roscosmos, second from left, and Drew Feustel of NASA, center, are seen with backup crew members Alexey Ovchinin of Roscosmos, second from right, and Nick Hague of NASA, right, during the State Commission meeting to approve the Soyuz launch of Expedition 55 to the International Space Station, Tuesday, March 20, 2018. Arnold, Artemyev, and Feustel are scheduled to launch to the International Space Station aboard the Soyuz MS-08 spacecraft on Wednesday, March, 21.

- Image ID: PG934W
Expedition 55 prime crew members Ricky Arnold of NASA, left, Oleg Artemyev of Roscosmos, second from left, and Drew Feustel of NASA, center, are seen with backup crew members Alexey Ovchinin of Roscosmos, second from right, and Nick Hague of NASA, right, during the State Commission meeting to approve the Soyuz launch of Expedition 55 to the International Space Station, Tuesday, March 20, 2018. Arnold, Artemyev, and Feustel are scheduled to launch to the International Space Station aboard the Soyuz MS-08 spacecraft on Wednesday, March, 21.
MA and F Collection 2018 / Alamy Stock Photo
Image ID: PG934W