The Famous Curtis-Shapley Debate in 1920 Concerned Which Fundamental Astronomical

question 359

Multiple Choice

The famous Curtis-Shapley debate in 1920 concerned which fundamental astronomical question in astronomy?

• A) whether all stars were like the Sun or fundamentally different
• B) whether the spiral "nebulae" were part of the Milky Way Galaxy or more distant, separate entities
• C) whether the universe was expanding outward in all directions
• D) whether the Sun was at the center of the Milky Way Galaxy

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