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“cosmic ray”
Any of a group of very high-energy particles reaching the earth from outer space or produced in the earth's atmosphere by the particles from outer space.
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cosmo-, cosm-, cosmico-, cosm, -cosmia, -cosmos, -cosmic, -cosmics, -cosmical, -cosmology, -cosms
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“cosmic ray”
An instrument used to detect and identify the direction of cosmic rays or the material that results when cosmic rays interact with the atmosphere.
This entry is located in the following units:
cosmo-, cosm-, cosmico-, cosm, -cosmia, -cosmos, -cosmic, -cosmics, -cosmical, -cosmology, -cosms
(page 2)
scopo-, scop-, scept-, skept-, -scope-, -scopy, -scopia, -scopic, -scopist
(page 7)
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“cosmic ray”
Nuclear and subatomic particles moving through space at high speeds: Cosmic rays are radiated from the Sun and other stars.
Cosmic rays are streams of ionizing radiations from space, largely of protons, alpha particles, and other atomic nuclei.
Cosmic rays are very high energy nuclei moving at velocities close to that of light which are probably produced by supernova explosions.
On striking the Earth's atmosphere, they produce cascades of other particles (by collision with nuclei in the atmosphere) called air showers.
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Astronomy and related astronomical terms
(page 7)