The Shapley - Curtis Debate in 1920
URL: http://antwrp.gsfc.nasa.gov/diamond_jubilee/debate_1920.html
Submitted: Sat Sep 06 2003
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CT: Astronomy: History: Worldviews: The Shapley - Curtis Debate in 1920
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The "great debate" about the scale of the universe and the nature of spiral nebulae.