👉 Light particles, also known as photons, are fundamental units of electromagnetic radiation that travel through space at the speed of light. These particles carry energy and momentum and are the primary carriers of light and other forms of electromagnetic waves, such as radio waves and X-rays. Unlike matter particles, light particles have no mass and do not interact with matter in the same way; they can pass through most materials without being absorbed or scattered, though they can be reflected, refracted, or absorbed depending on the medium they encounter. Photons are crucial in various phenomena, from the visible spectrum that gives light its color to the cosmic microwave background radiation that provides insights into the early universe.
