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Cosmic Ray Cool Fact - Introduction

Cosmic Rays

Cosmic rays are the fastest matter known to man. Some cosmic rays are moving at more than .999999 times the speed of light.




 

A service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA/GSFC

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