From the air, parts of the Namib Desert look as if someone has stamped an enormous sheet of polka dots across the landscape. Thousands upon thousands of roughly circular patches of bare ground interrupt the grassland, often with a taller fr...
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Open the Voynich Manuscript and almost everything about it looks tantalizingly close to comprehension. Lines of neat handwriting run from left to right. Words are separated by spaces. Paragr...
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High on a mountain in late spring, a patch of snow can suddenly look as though someone spilled watermelon juice across it. The surface turns pale pink, rose red or even crimson, sometimes st...
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Imagine taking the mass of a mountain and compressing it until its boundary is smaller than an atom. There would be no miniature rocky mountain inside, no visible sphere and certainly nothin...
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In daylight, the water may look ordinary — or even unappealingly reddish-brown. Then darkness falls, a wave breaks, and the shoreline suddenly flashes electric blue. Footsteps sparkle in wet...
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Imagine two identical buildings on the same street. One has a broken window that is repaired the next morning. The other has a broken window that remains shattered for weeks. Graffiti appear...
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You open a social-media app to check one headline. A war update leads to a natural disaster, which leads to political outrage, an economic warning and a frightening health story. Twenty minu...
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For many Americans, Labor Day means a three-day weekend, backyard cookouts, crowded beaches, college football and the unofficial end of summer. Retailers turn it into a sales event, swimming...
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For decades, coffee has occupied an awkward place in conversations about heart health. It contains caffeine, a stimulant that can temporarily raise blood pressure and make some people feel t...
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When a tropical system appears in the Atlantic, the urge to watch it move across a map can become almost compulsive. A disturbance off Africa becomes a colored area on an outlook. A few days...
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