@neiltyson why does the moon only show one side towards Earth? Does it spin at the same speed it’s orbiting Earth??
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Science consists in discovering the frame and operations of Nature, and reducing them, as far as may be, to general rules or laws—establishing these rules by observations and experiments, and thence deducing the causes and effects of things. Sir Isaac Newton, The Principia 1687
Thanks. Twitter will use this to make your timeline better. UndoUndo
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