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

Where does all that energy come from? For many years, scientists believed it came from shocks that occur in extreme astrophysical environments -- when, for example, a star explodes before forming a ...

"My dream would be to see a mission going to a Martian cave or to a Martian lava tube, because one of those caves could be ...

Coverage is expanded to include new content on high energy physics, the propagation of protons and nuclei in cosmic background radiation, neutrino astronomy, high-energy and ultra-high-energy cosmic ...

which are fundamental for cosmic ray propagation and provide crucially constraint on the physical processes in the ...

Previous measurements of the energy spectra of these cosmic rays revealed several unexplained features. In general, the ...

Her graduate work involved the measurement of the fragmentation cross sections of relativistic heavy nuclei on light targets, and the application of these cross sections to the problem of cosmic ray ...

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 ...

Credit: Mark Garlick/Science Photo Library via Alamy Scientists have detected the most energetic cosmic rays ever discovered, and they're being produced by mysterious sources relatively close to ...

"Cosmic rays are a century-old mystery," Mathieu de Naurois, a researcher at the French National Centre for Scientific Research and deputy director of the H.E.S.S. collaboration, told Space.com.

DURING the examination of about three thousand cosmic stars in Ilford G5 plates 200µ thick, exposed at balloon altitude, we observed in several cases two prongs of comparable length, making a ...