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doit_the_clown doit_the_clown
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7 years ago
The typical diameter of a spiral galaxy is about
   A)  107 ly.    B)  105 ly.    C)  1 ly.    D)  100 ly.
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Discovering the Universe

Discovering the Universe


Edition: 7th
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Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

Albert Einstein
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discovererdiscoverer
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7 years ago
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7 years ago
I appreciate what you did here, answered it right Smiling Face with Open Mouth
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Thank you, thank you, thank you!
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Thanks
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