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Explain how astronomers discovered that there are other galaxies beyond the milky way.
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Explain how astronomers discovered that there are other galaxies beyond the milky way.

User Vikum Dheemantha
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Answer:

Using Cepheid variables, astronomers were able to measure distances to those stars that were in distant galaxies and determine there were other galaxies at great distances.

Step-by-step explanation:

Apologies if this isn't the right answer, though I hope it is. Have a good day/night!

User Nilesh Pethani
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