A long-standing cosmic mystery is beginning to yield new clues as researchers uncover a strikingly consistent pattern in the ...

Ultraheavy particle clue: Penn State-led research suggests some ultrahigh-energy cosmic rays are made of nuclei heavier than ...

There may be an ultraheavy explanation for the mystery surrounding the origins of the highest-energy particles ever observed.

Detection by Askaryan Radio Array holds promise for future research into sources, nature of cosmic rays and neutrinos ...

New analyses by the IceCube observatory could help scientists understand where neutrinos form and what is producing them ...

New particle clue: Scientists identified ultraheavy nuclei as possible constituents of the highest-energy cosmic rays, offering new insight into their mysterious origins. Extreme origins: Potential ...

A century after their discovery, cosmic rays—particles of extreme energy originating from the far reaches of the ...

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A dead star accelerates protons to extreme speeds, shedding light on the origin of the most energetic cosmic rays.

A negative film which Tom Liggett developed after it returned from space captured some images believed to be created by ...

NASA's Artemis I mission takes a selfie of the Orion capsule on its way to the moon. Travel beyond the Earth's atmosphere and magnetic fields involves exposure to high levels of radiation from the sun ...

For years, scientists have searched for the sources of the most energetic particles in ...