Expedition 30 was a mission to the International Space Station (ISS) that took place from December 2011 to April 2012. It involved a crew of six astronauts and cosmonauts, including Dan Burbank, Oleg Kononenko, and Andrey Babkin. The mission focused on scientific research, technology demonstrations, and maintaining the ISS. During Expedition 30, the crew conducted various experiments in fields such as biology, physics, and materials science. They also performed routine maintenance and upgrades to the station, ensuring its continued operation and support for future missions. The expedition contributed to our understanding of living and working in space.