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Be very careful about using eclipse glasses to stare at the sun
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34
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3869
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August 6, 2017
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Watch some free diving beneath ice for your daily dose of NOPE
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21
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2356
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April 1, 2017
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Death Star ice cube mold
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9
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2371
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March 17, 2015
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Comet Lovejoy reaches peak, green brightness this week. Here's how to watch
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6
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1129
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January 19, 2015
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Photography: These starscapes may inspire a move to Finland
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6
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1181
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December 21, 2016
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