Energetic particles that pop briefly into existence when cosmic rays hit Earth’s atmosphere could help assess hidden damage ...

Using a decade’s worth of data from the H.E.S.S. telescopes in Namibia, they’ve observed a sharp kink in the energy spectrum ...

Scientists have detected the most energetic cosmic rays ever discovered, and they're being produced by mysterious sources ...

The most powerful cosmic-ray electrons and positrons ever detected slamming into Earth's atmosphere carry energies so high ...

Scientists have a problem with cosmic rays—they produce too many muons at the Earth's surface. Cascades of muons are ...

When stars explode as supernovas, they can cause serious cosmic carnage. Is Earth in any danger from any nearby stars?

In a groundbreaking discovery, scientists have detected the most energetic cosmic rays ever observed, and they are coming ...

Astrophysicists have detected the most energetic electrons ever recorded raining down on Earth. With trillions of times the ...

They are affected by magnetic fields throughout the Universe and arrive at Earth from all directions. These particles also ...

An international team of scientists has recorded the most powerful cosmic rays in the history of observations. The mysterious ...

"Understanding these cosmic rays allows us to unveil big particle accelerators in the universe that are often associated with ...

Scientists at the HESS observatory in Namibia have found the most energetic cosmic rays ever detected, reaching up to 40 ...