If You Find Aliens, Who Do You Call? Various officials reveal how they pass the buck on such calls.

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Meet the Murderous Viking Princess Who Brought the Faith to Eastern Europe. Game of Thrones could learn a thing or two from Saint Olga.

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Silver Medal Shocker. The story of the notorious U.S.-USSR gold medal basketball game at the 1972 Olympics.

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Star Wars and the Strategic Use of Chasms. No real spaceship or space station will ever have that much elbow room.

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The Story of Hyperchess, a 3D Chess Game Inspired by Star Trek. Max Chappell worked for 20 years to get it right.

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In the 16th century, Dutch Renaissance artist Pieter Bruegel the Elder painted a village scene filled with people doing nonsensical things. Netherlandish Proverbs illustrates over 100 old Dutch proverbs.

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The Slash: The 20-Foot Clearing That Stretches 5525 Miles Across World's Longest Border. You can see it in satellite images

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10 Things Done to Balls to Give Athletes a Competitive Edge. The "deflate-gate" scandal of 2015 was far from the only time it was done.