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Question 4:
Compare and contrast the four star clusters (labeled A, B, C, and D) highlighted on the 30 Doradus image. How are they similar and how are they different?
Answer:

The star clusters are bright areas in the nebula where stars tend to be close to one another. Some of the clusters are brighter than others and some contain more stars than others. The spacing between the stars is not the same from one cluster to another. According to the text, the ages of the star clusters vary from about 2 million to about 25 million years old.

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