In the Great Debate of 1920, Curtis and Shapley Argued

question 71

Multiple Choice

In the Great Debate of 1920, Curtis and Shapley argued over whether or not:

• A) the Big Bang occurred
• B) the age of the universe was 14 billion years
• C) the universe was contracting
• D) life existed outside of Earth
• E) the spiral nebulae were located outside the Milky Way

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