Summarize expedition 33

Expedition 33 was a series of crewed missions to the International Space Station (ISS), conducted in late 2012 and early 2013. This expedition followed Expedition 32 and focused on various scientific research projects and maintenance tasks aboard the ISS. The crew of Expedition 33 included six astronauts from various space agencies, including NASA and the Russian space agency Roscosmos. They conducted experiments on topics such as microgravity effects on human physiology, advanced materials science, and the growth of plants in space. The mission also involved spacewalks for maintenance and upgrades to the station's systems, as well as the arrival of visiting cargo spacecraft. Overall, Expedition 33 contributed to the ongoing research and international collaboration that defines the ISS program, enhancing our understanding of life in space and preparing for future exploration missions.