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A new analysis says that the asymmetry between the two faces of the moon is due to crust thickness differences that resulted from variable cooling rates after the molten formation of our companion. Karen Hopkin reports
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Eleven-year-old Simon Kaschock-Marenda's science fair project led to a publication about the insecticidal effects of the sweetener Truvia. Karen Hopkin reports
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Learn more about your ad choices. Visit megaphone.fm/adchoices
Learn more about your ad choices. Visit megaphone.fm/adchoices
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