At the Cosmonaut Hotel crew quarters in Baikonur Kazakhstan Expedition 51 crewmember Jack Fischer of NASA takes to test his vestibular system.

At the Cosmonaut Hotel crew quarters in Baikonur, Kazakhstan, Expedition 51 crewmember Jack Fischer of NASA takes a spin in a rotating chair to test his vestibular system April 13 as part of his pre-launch activities. Fischer and Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos) will liftoff April 20 from the Baikonur Cosmodrome on the Soyuz MS-04 spacecraft for a four and a half month mission on the International Space Station. NASA/Victor Zelentsov