👉 Confirmed light particles, often referred to as photons, are elementary particles that constitute light and other forms of electromagnetic radiation. These particles are fundamental to the structure of matter and energy, carrying energy and momentum through space via electromagnetic fields. Photons are massless, meaning they have no rest mass, and they travel at the speed of light in a vacuum, approximately 299,792 kilometers per second. They exist in discrete packets, or quanta, which explains their quantized nature in various physical phenomena, such as the photoelectric effect and atomic transitions. Despite being massless, photons interact with charged particles like electrons, leading to phenomena like absorption, emission, and scattering of light, which are crucial in fields ranging from optics and quantum mechanics to astrophysics and cosmology.
