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 prime and backup crew members pose for a picture following Russian Sokol suit pressure checks, Wednesday, Oct. 14, 2020, at the Baikonur Cosmodrome in Kazakhstan. From left to right seated are prime crew members Kate Rubins of NASA, Sergey Ryzhikov of Roscosmos, and Sergey Kud-Sverchkov of Roscosmos; standing are backup crew members Mark Vande Hei of NASA, Oleg Novitskiy of Roscosmos, and Petr Dubov of Roscosmos. Rubins, Ryzhikov, and Kud-Sverchkov launched at 1:45 a.m. EDT to begin a six-month mission aboard the International Space Station. Photo Credit: (NASA/GCTC/Andrey Shelepin)