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Home Q & A Board Science-Related Homework Help Physics Astronomy
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jbrisell jbrisell
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5 years ago
Dark matter in galaxies and clusters of galaxies is purely hypothetical because we have no way of detecting its presence.
A) True
B) False
Textbook 
The Essential Cosmic Perspective

The Essential Cosmic Perspective


Edition: 7th
Authors:
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leavemealoneleavemealone
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5 years ago
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jbrisell Author
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5 years ago
Correct Slight Smile TY
dianeflunder
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Yesterday
Smart ... Thanks!
annabananerz
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2 hours ago
This site is awesome
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