Cosmic ray particle, historical image

Cosmic ray particle, historical image

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Credit: AIP Emilio Segre Visual Archives, Darrow Collection /SCIENCE PHOTO LIBRARY

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Caption: Cosmic ray particle. Image by Karl Darrow (1891-1982), showing the track of a cosmic ray particle with abundant branches (auger). Cosmic rays are high-energy radiation of unknown origin, mainly originating outside the Solar System. This radiation mainly consists of high-energy protons and atomic nuclei. Data from space telescopes now suggest that a high proportion of this radiation comes from the supernovae of massive stars.

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Keywords: 1900s, 20th century, american, astrophysical, astrophysics, atomic physics, auger, black and white, black-and-white, branch, branches, branching, cosmic rays, historical, history, history of science, monochrome, no-one, nobody, particle, particles, physical, physics, radiation, ray, trace, track, us, usa

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