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The cosmic phenomenon carried the energy of 240 quintillion electron volts - that's 240 billion billion (followed by 18 zeros). It was detected in Utah in May 2021 and revealed today.
In 1991, physicists spotted a cosmic ray with so much energy it warranted an ‘OMG.’ Now that energetic particle has a new companion.
The Amaterasu particle is one of the highest-energy cosmic rays ever detected.
Scientists spot a particle of intense energy, but explaining where it came from might require some new physics. Scientists spot a particle of intense energy, but explaining where it came from might require some new physics.
Space scientists have detected an extremely rare, ultra-high-energy particle that they believe traveled to Earth from beyond the Milky Way galaxy.