Lunar missions refer to spacecraft missions that are sent to study or explore the Moon. These missions can range from orbiters and landers to sample return missions, with the goal of conducting scientific research on the Moon's geology, surface features, composition, and history. The data collected from lunar missions can also help scientists better understand the formation and evolution of the Moon, as well as its potential as a future destination for human exploration and colonization. Notable lunar missions include the Apollo program, which landed astronauts on the Moon, as well as recent missions such as the Lunar Reconnaissance Orbiter and the Chang'e series by China.