Cosmic rays

Artist's concept of cosmic rays striking Earth's atmosphere and creating a shower of secondary particles. Researchers on Earth observe the secondary particles in order to study cosmic rays, which cannot penetrate Earth's atmosphere. Image via J. Yang / NSF

Amaterasu particle, one of highest-energy cosmic rays ever detected, is coming from an apparently empty region of space

Scientists think they’ve tracked down a source of mysterious high-energy cosmic rays that have been puzzling for over a century. The trail of a “ghost particle" detected at the South Pole pointed the way.

Using data from the IceCube Neutrino Observatory at the South Pole, scientists have reported progress in understanding the longstanding mystery of how and where cosmic rays originate, in a development that might help us find ways to shield astronauts and electronics from cosmic radiation.

Physicists are beginning to unravel the mysteries of ultrahigh-energy cosmic rays, particles accelerated by the most powerful forces in the universe.

WASHINGTON: Microscopic “timers” have revealed the likely source of galactic radiation that we detect at Earth.. Microscopic “timers” have revealed the lik

Bubble-chamber photograph of particle tracks from a cosmic ray collision.

the electromagnetic spectrum in the atmosphere science.memebase.com

Why is life built from molecules with preferred orientation? There’s a chance cosmic rays are to blame.

The results indicate that cosmic ray electron count rates are strongly influenced by the solar modulation.