Expedition 71 backup crew members, Roscosmos cosmonaut Ivan Vagner, left, NASA astronaut Don Pettit, right, and backup Belarus spaceflight participant Anastasia Lenkova, and are seen as the Soyuz rocket is rolled out by train to the launch pad at Site 31, Monday, March 18, 2024, at the Baikonur Cosmodrome in Kazakhstan. Expedition 71 NASA astronaut Tracy Dyson, Roscosmos cosmonaut Oleg Novitskiy, and Belarus spaceflight participant Marina Vasilevskaya are scheduled to launch aboard their Soyuz MS-25 spacecraft on March 21. Photo Credit: (NASA/Bill Ingalls)