👉 The term "light particles" refers to subatomic entities that are too small to be seen with the naked eye, typically ranging from about 0.001 to 10 picometers in size. These particles include electrons, protons, and photons (light itself can be considered a form of particle-wave duality). In the context of astrophysics and particle physics, "light particles" often denote photons, which are the quanta of electromagnetic radiation, or other elementary particles like neutrinos. When described as "light," this usually indicates particles with very low mass and energy, making them extremely difficult to detect directly due to their minimal interaction with matter. They are often used in discussions about phenomena such as cosmic microwave background radiation, which is a key piece of evidence for the Big Bang theory, or in particle accelerators where high-energy collisions can produce these particles. The "light" aspect in this rating emphasizes their ethereal and elusive nature, highlighting the challenges scientists face in observing and studying them directly.
