Light pressure refers to the force exerted by light waves on a surface. Although light is often thought of as weightless, it carries momentum, which can create a small amount of pressure when it strikes an object. This phenomenon is most noticeable in situations like solar sails, where spacecraft use the pressure from sunlight to propel themselves through space. The concept of light pressure is rooted in the principles of physics and is closely related to electromagnetic radiation. It plays a role in various scientific applications, including optical tweezers, which use focused light to manipulate tiny particles, and in the study of photons, the fundamental particles of light.