After almost a century of speculation, proposals and searches for dark matter, physicists now know that it currently ...

The High Energy Stereoscopic System is a ground-based gamma-ray telescope in the highlands of Namibia and sensitive in the ...

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

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

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

Scientists from the CNRS, a consortium of German universities, and the Max-Planck-Institut für Kernphysik working at the ...

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 ...

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

Researchers use the H.E.S.S. Observatory to overcome the challenge of detecting high-energy cosmic-ray electrons and ...