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What's Ultra-high-energy neutrinos? 

(UHE neutrinos) are subatomic particles with energies greater than 10 petaelectronvolts (PeV), mean a level of energy that allows them to travel vast cosmic distances & potentially reveal info most energetic events in the universe. Neutrinos are created when ultra-relativistic cosmic rays interact with any other particles or photons.

Key aspects of UHE neutrinos: Origin
They are thought to be produced in the same environments that create high-energy cosmic rays & gamma rays, such as active galactic nuclei, gamma-ray bursts, & other extreme cosmic events.

Detection Challenges:
UHE neutrinos are extremely rare and interact weakly with matter, making them difficult to detect.

Importance in Astronomy:
Their ability to travel through space without being significantly deflected or absorbed by interstellar material makes them useful for studying distant astrophysical objects and processes.

Potential to Reveal New Physics:
The study of UHE neutrinos may provide clues about the nature of cosmic rays, new fundamental physics, and the evolution of the universe.

What happens if a neutrino hits you?.

Fortunately, be'cos neutrinos are so weakly interacting, they are completely harmless: although hundreds of billions of solar neutrinos are passing through you or me at this very moment (even if it happens to be night-time – they pass through the Earth too, no problem), the chances that one of them will interact with an ...