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Home Q & A Board Science-Related Homework Help Physics Astronomy
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hermiz hermiz
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7 years ago
Given that our galaxy has a volume of approximately 8 1012 ly3, what is the average distance between civilizations if there are currently 1 million intelligent civilizations in our galaxy?
A) 1,500 ly
B) 200 ly
C) 320 ly
D) 2,800 ly
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Life in the Universe

Life in the Universe


Edition: 4th
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Life in the Universe, 4/E (Bennett, Shostak)
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DonskoyDonskoy
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7 years ago
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hermiz Author
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7 years ago
this is exactly what I needed
amandamraz
wrote...

Yesterday
Smart ... Thanks!
sadiewolf
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2 hours ago
Thanks
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