Astronomers detect mysterious high-energy particle falling to Earth from space
The Amaterasu particle is one of the highest-energy cosmic rays ever detected.
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The Amaterasu particle is one of the highest-energy cosmic rays ever detected.
The Amaterasu particle is one of the highest-energy cosmic rays ever detected.
The Amaterasu particle is one of the highest-energy cosmic rays ever detected.
Space scientists seeking to understand the enigmatic origins of powerful cosmic rays have detected an extremely rare, ultra-high-energy particle that they believe traveled to Earth from beyond the Milky Way galaxy.
The detection of such a high-energy cosmic ray—charged particles that travel through space at almost the speed of light—is "exceedingly rare."