A Laser Guide Star is a technology used in astronomy to improve the clarity of images taken by telescopes. It works by firing a powerful laser into the atmosphere, which creates an artificial star by exciting sodium atoms in the upper atmosphere. This artificial star helps astronomers measure and correct for distortions caused by atmospheric turbulence. By comparing the light from the laser guide star to the light from actual celestial objects, telescopes can adjust their optics in real-time. This process enhances the quality of images captured from distant objects, making it easier to study phenomena such as galaxies, stars, and other celestial bodies.