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At their Cosmonaut Hotel crew quarters in Baikonur, Kazakhstan, the Expedition 55 prime and backup crewmembers raise the flags of Russia, the United States and Kazakhstan in traditional pre-launch ceremonies March 6. Prime crewmembers Drew Feustel and Ricky Arnold of NASA and Oleg Artemyev of Roscosmos will launch March 21 on the Soyuz MS-08 spacecraft from the Baikonur Cosmodrome for a five-month mission on the International Space Station. NASA/Victor Zelentsov

At their Cosmonaut Hotel crew quarters in Baikonur, Kazakhstan, the Expedition 55 prime and backup crewmembers raise the flags of Russia, the United States and Kazakhstan in traditional pre-launch ceremonies March 6. Prime crewmembers Drew Feustel and Rick

Photographer Victor Zelentsov