Scientists with the Askaryan Radio Array in Antarctica have recorded the first in-ice evidence of radio pulses from cosmic rays, validating a decades-old prediction. The 13 detected events match ...

Cosmic rays are high-energy particles, chiefly protons and atomic nuclei, that pervade space and strike the Earth’s atmosphere. Detection techniques encompass ground-based air-shower arrays, ...

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Cosmic rays seen at Earth show a wide range of particle energies, from 107 electron-volts (eV) to more than 1020 eV, the latter being about the same as the kinetic energy of a 450 gram football ...

Scientists have discovered that ultraheavy atomic nuclei could explain some of the highest-energy cosmic rays ever observed.

Our planet has recently been struck by an extraordinary burst of cosmic rays, demonstrating an intensity level that is unparalleled in recorded history. As we delve into the specifics of this event, ...

We are zeroing in on the true composition of the rarest, highest-energy cosmic rays – which could help reveal their unknown origins. Previous ultra-high-energy cosmic ray detections – by the Pierre ...

A team of international astronomers have discovered a new cosmic object emitting both radio waves and x-rays. Astronomers from the International Centre for Radio Astronomy Research (ICRAR), in ...

A discovery involving researchers at The University of Hong Kong (HKU) has, for the first time, revealed millisecond pulsations hidden within a powerful cosmic explosion known as a gamma-ray burst ...

The universe is a cosmic web, woven from vast filaments that connect galaxies and clusters. Elena Pinetti explains how these ...