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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Beyond The Electromagnetic Spectrum Lately, however, astronomers are even searching for and detecting high-energy cosmic ray particles, neutrino particles, and gravitational radiation --- none of which are part of the electromagnetic spectrum.
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Bruce Dorminey, Forbes.com, 23 Apr. 2025
In a new study, researchers from the Los Alamos National Laboratory in New Mexico argue that this spark is often provided by cosmic ray showers.
—Thomas G. Moukawsher, Newsweek, 21 Mar. 2025
The cosmic ray subsystem shut off on Voyager 1 last week included a trio of telescopes studying and measuring cosmic rays, or the most highly energetic particles in the universe, releasing from the sun and Milky Way galaxy.
—Ashley Strickland, CNN, 5 Mar. 2025
Voyager 2’s magnetic field and plasma wave equipment will also continue operating for the foreseeable future, while its cosmic ray subsystem will be retired in 2026.
—Andrew Paul, Popular Science, 5 Mar. 2025
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Bruce Dorminey, Forbes.com, 23 Apr. 2025
In a new study, researchers from the Los Alamos National Laboratory in New Mexico argue that this spark is often provided by cosmic ray showers.
—Thomas G. Moukawsher, Newsweek, 21 Mar. 2025
The cosmic ray subsystem shut off on Voyager 1 last week included a trio of telescopes studying and measuring cosmic rays, or the most highly energetic particles in the universe, releasing from the sun and Milky Way galaxy.
—Ashley Strickland, CNN, 5 Mar. 2025
Voyager 2’s magnetic field and plasma wave equipment will also continue operating for the foreseeable future, while its cosmic ray subsystem will be retired in 2026.
—Andrew Paul, Popular Science, 5 Mar. 2025
See All Example Sentences for cosmic ray
Cite this Entry
“Cosmic ray.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cosmic%20ray. Accessed 2 May. 2025.
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