STS-132 is a mission of the Space Shuttle Discovery to visit the International Space Station, planned for April 8, 2010. The mission is referred to by the ISS program as ULF4. The primary payload is scheduled to be the Russian Mini-Research Module 1 and the ICC-VLD. Additionally, at least three spacewalks are planned to stage spare components outside the station, including six spare batteries, a boom assembly for the Ku-band antenna and spares for the Canadian Dextre robotic arm extension. A radiator, airlock and European robotic arm for the Russian Multi-purpose Laboratory Module also are payloads on the flight. STS-132 will be the final mission of Discovery.