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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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 1901, divers working an ancient shipwreck near the Greek island of Antikythera recovered statues, ceramics, glass and a badly corroded mass of bronze. The wreck had carried valuable cargo...
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When sponge divers found an ancient shipwreck off the small Greek island of Antikythera around 1900, they brought up the kinds of objects archaeologists expected from a wealthy vessel of the...
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From the road near Fish Lake in central Utah, Pando looks like an ordinary mountain forest. Thousands of pale trunks rise from the ground. Their leaves tremble in the slightest breeze, turni...
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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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In the old medina of Fez, behind carved doors and walls that have witnessed more than a millennium of Moroccan history, books have survived dynasties, wars, political upheavals and the arriv...
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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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