Scientists with the HESS Observatory have identified the most energetic cosmic electrons ever observed. What could this mean ...

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

Five telescopes of the H.E.S.S.-collaboration in Namibia are used to study cosmic radiation, especially gamma radiation. With ...

High-energy particles, known as cosmic rays, provide a window into some of the most extreme environments in the universe.

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 ...

New research reports the most powerful cosmic rays ever detected. Because the rays lose energy as they travel through space, ...

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

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 ...

Scientists have recently identified electrons and positrons with the highest energies ever recorded on Earth. They provide evidence of cosmic processes emitting colossal amounts of energy, the origins ...

New insights into the origins of high-energy cosmic-ray electrons point to a mysterious source close to our solar system.