The prevailing theory for the source of neutrinos is that they are emitted from gamma ray-emitting galactic nuclei. When protons, positively-charged subatomic particles, are flung out from these ...

it is thought that a beta particle is formed when a neutron splits up into a proton and an electron. While it will pass through air, it cannot penetrate thin metal foil. Gamma waves come from the ...

The gamma-ray bubble indicates a super cosmic ray accelerator inside it, which can boost protons to energies of up to 20 PeV and inject them into interstellar space. The researchers identified a ...