IceCube neutrino search sets first constraints on proton fraction of ultrahigh-energy cosmic rays
Astrobitica
July 28, 2025 (Last updated: July 28, 2025) 1 minute read
Neutrinos are subatomic particles with no charge and very little mass that are known to weakly interact with other matter in the universe. Due to their weak interactions with other particles, these particles are notoriously difficult to detect.