A new theory may finally unveil their origin. Ultra-high-energy cosmic rays (UHECRs) surpass in power anything humans can produce in laboratories. Their discovery dates back over 60 years, but their ...

The Earth's magnetic field, created by electrical currents from its molten iron core, extends into space and acts as a protective shield against harmful radiation, including cosmic rays and ...

Want to see cosmic rays? You might need a lot of expensive exotic gear. Nah. [The ActionLab] shows how a cup of coffee or cocoa can show you cosmic rays — or something — with just the right ...

The other method uses the relic radiation from the Big Bang and gives ... model -- and finding ways to spot signs of this slow cosmic spin.

"In the study, we combined all of the regions where the magnetic field would not have been connected, allowing cosmic radiation ... to survive on a planet whose atmosphere looked a lot different ...

Physicist Glennys Farrar has proposed a testable theory linking ultrahigh-energy cosmic rays to magnetic outflows from neutron star mergers, explaining key features and offering new directions for ...

This discovery offers a rare real-time look into the cosmic tug-of-war that may have shaped galaxies in the early universe. This discovery reveals an unexpected pattern in how stars are moving within ...

Cosmic rays are protons or atomic nuclei that travel ... but plenty still get through to hit the top of the atmosphere. Each causes a shower of secondary charged particles — electrons and ...

Cosmic rays are protons or atomic nuclei that travel through space ... Many are deflected by the planet's geomagnetic field, but plenty still get through to hit the top of the atmosphere. Each causes ...

These winds brush against Earth's magnetic field and upper atmosphere, which help shield the planet from cosmic rays originating elsewhere in the galaxy. But solar winds can also disrupt ...