What are astroparticles?

Let's examine a definition in this manner:

Particle physics is the study of particles, particularly the smallest detectable ones, and the forces and fields that affect them. To start, a particle is a very small piece of something that has mass and/or radiation.

Astroparticle physics examines the connections between astroparticles and astrophysics and cosmology. Astroparticles are particles with an astronomical origin.

You can read about astroparticle physics, including the problems they are trying to solve and their techniques, by clicking on the astroparticle wiki link.

Astroparticles are high-energy particles originating from space, such as cosmic rays, neutrinos, and gamma rays. They provide insights into astrophysical phenomena, including supernovae, black holes, and the early universe. Astroparticle physics studies their properties and interactions to understand cosmic phenomena and fundamental physics.