cosmic ray

noun

: a stream of atomic nuclei of extremely penetrating character that enter the earth's atmosphere from outer space at speeds approaching that of light

Examples of cosmic ray in a Sentence

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Despite being underground to avoid interference from cosmic rays and radiation, the detector's sensitivity is unprecedented. —

Benedict Cosgrove, Newsweek, 18 Dec. 2024 Most electrons in cosmic rays have energies of a few hundred gigaelectronvolts (GeV). —

Michael Irving, New Atlas, 29 Nov. 2024 Researchers have known that at least hundreds of black hole jet systems exerted at least some influence on early the universe’s evolution through the emission of cosmic rays, heavy atoms, magnetic fields, and heat. —

Andrew Paul, Popular Science, 18 Sep. 2024 With trillions of times the energy of visible light, these cosmic rays seem to be coming from a powerful source relatively close to our solar system. —

Michael Irving, New Atlas, 29 Nov. 2024 See all Example Sentences for cosmic ray