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11-57-29-2: At the Cosmonaut Hotel crew quarters in Baikonur, Kazakhstan, Expedition 40/41 Flight Engineer Alexander Gerst of the European Space Agency takes a turn on a tilt table May 21 as he tests his vestibular system during pre-launch medical tests. Gerst, Soyuz Commander Max Suraev of the Russian Federal Space Agency (Roscosmos) and Flight Engineer Reid Wiseman of NASA will launch on May 29, Kazakh time, on the Soyuz TMA-13M spacecraft from the Baikonur Cosmodrome for a 5 ½ month mission on the International Space Station. NASA/Victor Zelentsov

11-57-29-2: At the Cosmonaut Hotel crew quarters in Baikonur, Kazakhstan, Expedition 40/41 Flight Engineer Alexander Gerst of the European Space Agency takes a turn on a tilt table May 21 as he tests his vestibular system during pre-launch medical tests. Gerst, Soyuz Commander Max Suraev of the Russian Federal Space Agency (Roscosmos) and Flight Engineer Reid Wiseman of NASA will launch on May 29, Kazakh time, on the Soyuz TMA-13M spacecraft from the Baikonur Cosmodrome for a 5 ½ month mission on the International Space Station. NASA/Victor Zelentsov

Photographer Victor Zelentsov