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doit_the_clown doit_the_clown
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7 years ago
What is a rich cluster of galaxies?
A)   A cluster with more spiral galaxies than ellipticals
B)   A cluster (like our Local Group) that contains at least two large galaxies
C)   A cluster with a high metal content
D)   A cluster containing thousands of galaxies
Textbook 
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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papachulopapachulo
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7 years ago
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doit_the_clown Author
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7 years ago
Correct Slight Smile TY
megan.xo
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You make an excellent tutor!
mikey3091
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This site is awesome
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