Lunar origin research focuses on understanding how the Moon formed and how it has evolved over billions of years. There are several theories about the Moon's origin, including the giant impact hypothesis, which suggests that a Mars-sized body collided with Earth early in its history, ejecting material that eventually coalesced to form the Moon. Researchers study lunar rocks, craters, and surface features to gather data about the Moon's composition, structure, and history. This research can provide insights into the formation of the Earth-Moon system and the early solar system.