STS-126 was a Space Shuttle mission to the International Space Station (ISS) flown by Space Shuttle Endeavour. The mission launched on November 14, 2008, and was the twentieth shuttle mission to visit the ISS. The primary objective of the mission was to deliver and install the Leonardo Multi-Purpose Logistics Module (MPLM), which would provide additional living and working space for the ISS crew, and to perform maintenance and repair work on the station. The mission also included the delivery of supplies and equipment to the ISS and the rotation of the crew of the ISS.