Which of the Following Fundamental Astronomical Questions Did Curtis and Shapley

question 4

Multiple Choice

Which of the following fundamental astronomical questions did Curtis and Shapley debate in 1920 in their famous confrontation?

• A) Whether the Sun was at the center of the Milky Way Galaxy
• B) Whether the universe was expanding outward in all directions
• C) Whether the "spiral nebulae" were part of the Milky Way Galaxy or more distant,separate entities
• D) Whether the theory of general relativity could be used to explain the behavior of our universe

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