If you think you are living in cramped conditions - think again!
during their six-month mission on board the ISS. Credit: NASA
(Clockwise from bottom) Expedition 54 Commander Alexander Misurkin of Roscosmos; NASA astronauts Mark Vande Hei and Joe Acaba; Roscosmos cosmonaut Anton Shkaplerov; Astronaut Norishige Kanai of the Japan Aerospace Exploration Agency; NASA astronaut Scott Tingle. Credit: NASA.