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
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The instrument hunts for elusive dark matter by characterizing high-energy particles known as cosmic rays.
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Mike Wall, Space.com, 16 Jan. 2025
Because of the observed asymmetry between matter and antimatter, most of these cosmic rays are made from matter, but some are formed of antimatter.
—Keith Cooper, Space.com, 25 Dec. 2024
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
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Mike Wall, Space.com, 16 Jan. 2025
Because of the observed asymmetry between matter and antimatter, most of these cosmic rays are made from matter, but some are formed of antimatter.
—Keith Cooper, Space.com, 25 Dec. 2024
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
See all Example Sentences for cosmic ray
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“Cosmic ray.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cosmic%20ray. Accessed 6 Feb. 2025.
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