Expedition 17 was a mission to the International Space Station (ISS) that took place from April 2008 to October 2008. It involved a crew of six astronauts, including NASA astronaut Gregory Chamitoff and Russian cosmonaut Sergey Volkov. The mission focused on scientific research, technology demonstrations, and maintenance of the ISS. During Expedition 17, the crew conducted various experiments in fields such as biology, physics, and Earth sciences. They also worked on upgrading the station's systems and preparing for future expeditions, contributing to the ongoing development of the ISS as a platform for international cooperation in space exploration.