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symbo symbo
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Posts: 1970
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7 years ago
What are cosmic rays?

(a)   Atomic nuclei and other subatomic particles striking the Earth’s atmosphere from space.
(b)   Beams of light emitted by rotating neutron stars, that sweep past the Earth like lighthouse beams.
(c)   Bursts of X rays from neutron stars in binary star systems.
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
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hyponoticahyponotica
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7 years ago
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symbo Author
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7 years ago
Thank you, thank you, thank you!
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Yesterday
This helped my grade so much Perfect
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2 hours ago
Good timing, thanks!
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