Expedition 26 was a mission to the International Space Station (ISS) that took place from December 2010 to June 2011. The crew included six astronauts from various space agencies, including NASA and the Russian Federal Space Agency. Their primary objectives were to conduct scientific research, perform maintenance on the ISS, and support ongoing operations in low Earth orbit. During Expedition 26, the crew carried out over 40 experiments in fields such as biology, physics, and Earth sciences. They also welcomed the arrival of the Space Shuttle Endeavour and the Progress spacecraft, which delivered supplies and equipment to the ISS, ensuring the station's continued functionality and research capabilities.