Expedition 27 was a mission to the International Space Station (ISS) that took place from March to September 2011. 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. During Expedition 27, the crew included Commander Dmitry Kondratyev, Flight Engineer Cady Coleman, and Flight Engineer Paolo Nespoli, among others. They performed spacewalks, maintained the ISS, and collaborated with ground teams to ensure the station's operations continued smoothly. The mission contributed to the ongoing exploration of space and the development of future missions.