Expedition 52 was a mission to the International Space Station (ISS) that took place from June to September 2017. It involved a crew of six astronauts and cosmonauts who conducted scientific research and technology demonstrations in microgravity. The mission aimed to advance knowledge in various fields, including biology, physics, and Earth sciences. The crew for Expedition 52 included NASA astronauts Randy Bresnik and Mark Vande Hei, along with Russian cosmonauts Sergey Ryazanskiy and Andrey Babkin. They participated in spacewalks, maintenance tasks, and experiments that contributed to long-term human spaceflight and the future of exploration beyond low Earth orbit.