Scientists have found a neutrino that could come from a gamma-ray burst, an active black hole or a collision between a cosmic ray and photons in the cosmic microwave background.

Why scientists are so excited about the highest-energy 'ghost particle' ever seen

Source: space
Source Link: https://www.space.com/science/particle-physics/why-scientists-are-so-excited-about-the-highest-energy-ghost-particle-ever-seen