cosmic rays

plural noun

radiation consisting of particles, esp protons, of very high energy that reach the earth from outer space Also calledcosmic radiation

cosmic rays

Elementary particles , mainly protons , that are produced by the sun and other stars and then strike the upper atmosphere of the Earth . Some of these particles are absorbed, some help form the Van Allen belt , and some reach the Earth's surface, where they form a part of the background radiation that constantly surrounds us.

They know about our theoretical work on cosmic rays, including Suzanne's work up to about a month ago.

Jud explained that this was probably due to x-rays and cosmic rays which could penetrate the protective shield.

"Cosmic rays, perhaps," needled Smithy, and became instantly sorry when his friend's face began to redden.

They had molecular rays, cosmic rays, the energy of matter, then—what else had they now?

All particles that had been previously discovered were observed first in cosmic rays or some other form of natural radiation.

April 24, 2024gallimaufry

[gal-uh-maw-free ]

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