Nearly 100 years ago, scientists detected the first signs of cosmic rays — subatomic particles (mostly protons) that zip through space at nearly the speed of light. The most energetic cosmic rays hit ...

MINNEAPOLIS / ST. PAUL–Floating 125,000 feet above the Antarctic ice sheet, a balloon-borne experiment is making an unprecendented second loop around the South Pole, probing the heavens for the origin ...

BEIJING -- Scientists using China's Large High Altitude Air Shower Observatory (LHAASO) found that black holes, devouring ...

Milestone results released by the Large High Altitude Air Shower Observatory (LHAASO) on November 16 have solved a ...

Earth is under constant bombardment by cosmic rays, showers of high-energy particles that blast our planet from all directions at near light speed. While this might sound like the precursor to a ...

pt. I. Discovery -- The nature of the radiation -- Particles produced by the cosmic rays -- The primary cosmic radiation -- Radio waves from the galaxy -- Extensive air showers -- The origin of cosmic ...

Some of the most energetic cosmic rays in the galaxy may come from a surprisingly small source. If Max Planck Institute for Astrophysics researcher Laura Olivera-Nieto and her colleagues are right, ...

Could a comet be sent on such a trajectory through the galaxy that its surface no longer reflects the world from which it came? New observations of the comet 3I/ATLAS by the James Webb Space Telescope ...

A new study has an explanation for the unusual chemical makeup of our interstellar visitor. If true, it's not the best news we've ever heard.