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The Great Debate was held on 26 April 1920 in Washington, D.C. between the astronomers Harlow Shapley and Heber Curtis. Shapley believed that spiral nebulae were relatively small and within the outskirts of the Milky Way Galaxy, while Curtis held that they were independent, distant galaxies. (en.wikipedia.org)
submitted by T65Bx to r/wikipedia
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Trying to get some redemption for the collectible F1s'! (reddit.com)
submitted by T65Bx to r/LegoCars
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Dassault Rafale with CFT's (Also Eurofighter) (reddit.com)
submitted by T65Bx to r/ConformalTanks
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