Light Detection and Ranging, commonly known as LiDAR, is a remote sensing technology that uses light in the form of a pulsed laser to measure distances. By sending out laser pulses and measuring the time it takes for them to bounce back after hitting an object, LiDAR can create precise, three-dimensional information about the shape and surface characteristics of the Earth and other objects. LiDAR is widely used in various fields, including geography, forestry, and urban planning. It helps in mapping terrain, assessing vegetation, and even in autonomous vehicles for navigation. The data collected can be processed to generate detailed digital elevation models and other valuable insights.