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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The probe is now transmitting data about the interstellar medium, including information about cosmic rays, magnetic fields, and particle densities. —

Thomas G. Moukawsher, Newsweek, 29 Nov. 2024 Their goal is to test how renewable materials such as wood hold up in space where there are extreme temperatures, harmful cosmic rays, and energetic solar particles. —

Abby Montanez, Robb Report, 6 Nov. 2024 Long-duration space missions to the moon and Mars will expose astronauts to radiation from cosmic rays, or high energy particles that move through space. —

Ashley Strickland, CNN, 19 Sep. 2024 The instrument hunts for elusive dark matter by characterizing high-energy particles known as cosmic rays. —

Mike Wall, Space.com, 16 Jan. 2025 See all Example Sentences for cosmic ray