At this moment, Earth is moving in several different ways at once. It spins on its axis, circles the Sun at roughly 30 kilometers per second, and accompanies the entire Solar System on a vastly larger journey around the Milky Way. The famil...
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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:...
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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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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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On October 30, 1961, a Soviet Tu-95 bomber crossed the frozen landscape of Novaya Zemlya carrying an object so large that the aircraft had been specially modified to accommodate it. The bomb...
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From the ground, Earth is almost too large to understand. Nations fill maps. Mountain ranges divide regions. Oceans separate continents. Political borders seem concrete because they organize...
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Listen to some of NASA's most famous recordings from the outer Solar System and space does not sound silent at all. Jupiter whistles, crackles and roars. Saturn produces eerie rising tones....
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Suppose engineers invent a computer chip that performs the same calculation using half as much electricity. The obvious conclusion is that electricity consumption should fall. Now suppose th...
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There is a place in the South Pacific where the horizon contains nothing but water and the nearest scraps of land are roughly 2,688 kilometers away. No island marks the spot. There is no lig...
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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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