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Cosmic ray
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宇宙線
a high-energy particle, mainly originating from outside the Solar System, that travels through space at nearly the speed of light
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Cosmic rays play a role in shaping the Earth's atmosphere and climate.
Astronomers study cosmic rays to understand the processes in distant regions of the universe.
Cosmic rays are energetic particles that bombard the Earth from space.
Earth's atmosphere shields us from most cosmic rays, but some penetrate to the surface.
Detecting cosmic rays helps scientists explore the mysteries of the cosmos.
