Kazakhstan Expedition 53 54 pose for photos in front of a statue of Yuri Gagarin the first human to fly in space.

In the town of Baikonur, Kazakhstan, Expedition 53-54 backup crewmembers Shannon Walker of NASA (left), Anton Shkaplerov of Roscosmos (center) and Scott Tingle of NASA (right) pose for photos Sept. 8 in front of a statue of Yuri Gagarin, the first human to fly in space. They are serving as backups to the prime crewmembers, Joe Acaba of NASA, Alexander Misurkin of Roscosmos and Mark Vande Hei of NASA, who will launch on Sept. 13 from the Baikonur Cosmodrome in Kazakhstan on the Soyuz MS-06 spacecraft for a five and a half month mission on the International Space Station. Credit: NASA/Victor Zelentsov