Asteroid regolith refers to the layer of loose, fragmented material covering the surface of asteroids. This material is composed of a mixture of dust, rocks, and other debris that has accumulated over time due to various processes such as meteoroid impacts and space weathering. Studying asteroid regolith is important for understanding the geology and composition of asteroids, as well as for potential resource utilization and asteroid mining activities. Scientists analyze asteroid regolith through remote sensing data, sample return missions, and laboratory experiments to learn more about the formation and evolution of asteroids.