Expedition 66 was a mission to the International Space Station (ISS) that took place from November 2021 to March 2022. It involved a crew of seven astronauts from various countries, including NASA, Roscosmos, and ESA. The mission focused on scientific research, technology demonstrations, and international collaboration in space. During Expedition 66, the crew conducted over 200 experiments in fields such as biology, physics, and Earth science. They also worked on maintenance tasks and upgrades for the ISS, ensuring its continued operation and supporting future missions. The expedition highlighted the importance of teamwork in advancing space exploration.