Expedition 19 was a mission to the International Space Station (ISS) that took place from March to September 2009. It was part of a series of expeditions aimed at maintaining and expanding the ISS. The crew included astronauts from NASA, Roscosmos, and ESA, who conducted scientific research and performed maintenance tasks during their stay. The mission featured a six-member crew, including Commander Gennady Padalka and Flight Engineer Michael Barratt. They worked on various experiments in fields such as biology, physics, and technology, contributing to our understanding of life in space. Expedition 19 helped pave the way for future missions and advancements in space exploration.