Space is a vacuum, so an astronaut cannot simply lift a visor and take a sniff. Yet crews returning from spacewalks have repeatedly described something remarkably close to a smell of space: an acrid, metallic aroma that follows them through...
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In the Chihuahuan Desert of northern Mexico, where Durango, Chihuahua and Coahuila approach one another across an immense dry basin, a patch of landscape has acquired one of the strangest re...
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For generations, chemistry books could place bismuth near the end of the periodic table's stable territory. Its naturally occurring isotope, bismuth-209, showed no detectable radioactive dec...
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In 1929, while scholars were cataloguing manuscripts in Istanbul's Topkapı Palace, they encountered a fragment of an extraordinary world map. Painted in vivid colors on parchment traditional...
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When Iñupiat hunters and biologists began finding ancient weapon fragments inside bowhead whales harvested in Arctic Alaska, the discoveries posed an extraordinary question: how long had the...
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Ice presents a small everyday mystery. A cold pavement can be dangerously slippery even when the air temperature is far below freezing, while many other crystalline solids are perfectly easy...
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An old tree can carry the shape of an injury long after the branch that caused it has disappeared. A swollen collar may surround the site of a lost limb. Growth rings can bend around the old...
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On September 9, 1947, somebody working with one of the most advanced calculating machines in the United States opened its hardware and found an unusually literal explanation for a malfunctio...
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There is a peculiar kind of certainty that appears around traditional food. A grandmother made a dish one way, a restaurant in its supposed birthplace serves it another, and suddenly one ver...
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Few subjects can turn an ordinary Italian lunch into a tribunal quite as quickly as a traditional recipe. Put cream in carbonara, use pancetta instead of guanciale, add garlic where somebody...
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