GENERAL KNOWLEDGE

Detailed explanation-1: -Primary is radiation and secondary is particles like protons, etc. The properties are that they usually have really high energies and some can be more energetic than what is produced in the LHC. These rays are usually emanated from supernovae and the sun nearby.

Detailed explanation-2: -He had discovered cosmic rays. These high-energy particles arriving from outer space are mainly (89%) protons – nuclei of hydrogen, the lightest and most common element in the universe – but they also include nuclei of helium (10%) and heavier nuclei (1%), all the way up to uranium.

Detailed explanation-3: -We know today that galactic cosmic rays are atom fragments such as protons (positively charged particles), electrons (negatively charged particles) and atomic nuclei. While we know now they can be created in supernovas, there may be other sources available for cosmic ray creation.

Detailed explanation-4: -These days, based on their energies and composition, astronomers divide cosmic rays into four main types: solar cosmic rays, anomalous cosmic rays, galactic cosmic rays and ultra-high energy cosmic rays.