Matryoshka Dolls representing Expedition 55 crew members Norishige Kanai of the Japan Aerospace Exploration Agency (JAXA), left, Roscosmos cosmonaut Anton Shkaplerov, center, and NASA astronaut Scott Tingle are seen at a Karaganda Airport welcome ceremony in Kazakhstan on Sunday, June 3, 2018. Shkaplerov, Tingle, and Kanai are returning after 168 days in space where they served as members of the Expedition 54 and 55 crews onboard the International Space Station. Photo Credit: (NASA/Bill Ingalls)