What is astroparticle physics?

According to physicists, the physical laws of the early universe were more symmetrical, had fewer particles, and united forces than they are today.

The primary distinction between the early universe and the present is the energy density. In order to replicate and investigate these conditions, high-energy particles must be used. One way to do this is by using particle accelerators, but regardless of how effective these accelerators are, the energy is still very small in comparison to the early universe.

Studying the highly energetic particles released by stars, supernovae, blackholes, and other massive astronomical objects is another approach to study high energy physics. These particles may possess some of the characteristics that we look for in our theories.

The study of particles originating from astronomical phenomena is known as astroparticle physics.

Astroparticle physics is a branch of physics that studies the relationship between elementary particles and celestial objects, such as stars, galaxies, and cosmic rays. It aims to understand phenomena like dark matter, neutrinos, and cosmic rays, by combining techniques and theories from particle physics, astronomy, and cosmology.