Laser ranging

Laser ranging is a precise measurement technique that uses laser beams to determine distances to distant objects. A laser pulse is emitted toward the target, and when it hits, some of the light reflects back to a detector. By measuring the time it takes for the laser to travel to the object and return, and knowing the speed of light, the distance can be calculated accurately. This method is used in applications like mapping terrain, measuring the Moon’s distance, and monitoring Earth's surface changes, providing high-precision spatial data for scientific and practical purposes.