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 ...
Cosmic particles with phenomenal energy have puzzled scientists for decades. A new theory may finally unveil their origin. Ultra-high-energy cosmic rays (UHECRs) surpass in power anything humans can ...
Supermassive black holes are some of the most powerful engines in the universe. These giants sit at the centers of galaxies, including your own Milky Way, and sometimes become active by pulling in ...
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, ...
The Large High Altitude Air Shower Observatory (LHAASO) has discovered a giant ultra-high-energy gamma-ray bubble structure in the Cygnus star-forming region, which is the first time that the origin ...
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 ...
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