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What are cosmic rays primarily composed of?

In: Astronomy [Edit categories]

Answer:

atomic nuclei

First answer by MiiCHEllESPARkY. Last edit by MiiCHEllESPARkY. Contributor trust: 1 [recommend contributor ]. Question popularity: 1 [recommend question].

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What is a cosmic ray?
Cosmic ray: A ray of radiation of extraterrestrial origin, consisting of one or more charged particles such as protons, alpha particles, and larger atomic nuclei. Cosmic rays entering the atmosphere...
Who discovered Cosmic Rays?
Cosmic rays were discovered in 1912 by Victor Hess
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50% heluim and 50% hydrogen
Which is primarily composed of DNA?
genes
Cytoplasm is composed primarily of what?
Its a jelly-like substance