Supernova remnant is source of extreme cosmic particles

Astronomers have long sought the launch sites for some of the highest energy protons in our galaxy. Now, a study using 12 years of data from NASA’s Fermi Gamma-ray Space Telescope confirms that a remnant of a supernova, or star explosion, is just such a place, solving a decade-long cosmic mystery.

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Fermi Confirms Star Wreck as Source of Extreme Cosmic Particles - SpaceRef

What are cosmic rays?

Extremely fast acceleration of cosmic rays in a supernova remnant

Cosmic ray - Wikipedia

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