As October draws to a close, Halloween brings costumes, candy, and decorations designed to make everyday things feel frightening. Some of the holiday’s darker stories, though, aren’t make-believe. Discarded pumpkins can harm wildlife, trick-or-treating carries real risks for children, and one notorious crime helped fuel decades of fears about poisoned candy. Here are ten unsettling […]

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William the Conqueror seized the English crown in 1066 by defeating King Harold at the Battle of Hastings. He then built the Tower of London to secure his power over his new domain. Construction of the central keep, the White Tower, took about 20 years. Masons came from Normandy, and stone was brought from Caen […]

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Scientists often discover new animals in places that seem made for exploration: remote rainforests, deep oceans, isolated islands, and unexplored caves. But nature does not always follow expectations. Sometimes, previously unknown species turn up where people live, work, travel, and conduct research. A fish can be misidentified in a neuroscience lab, a scorpion can be […]

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Nuclear weapons tests were supposed to happen at test sites: Bikini Atoll, Nevada, Semipalatinsk, remote stretches of ocean and desert where governments could detonate something terrible, take measurements, and eventually pack up. The fallout did not respect the arrangement. Atmospheric tests in the 1950s and early 1960s scattered radioactive isotopes around the planet. Some settled […]

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Real history often outdoes the stories we make up. Around the world, towns grew around staircases and mines; ancient engineers found ways to store water in dry landscapes; and communities built floating islands. The histories behind these places may sound like fantasy, but every one is real—and people can still visit many of them today. […]

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Death is the one appointment every human keeps, yet people have spent thousands of years searching for a way to cancel it. Ancient kings pursued magical plants and mysterious springs, emperors swallowed poisonous metals, and aristocrats drank gold or claimed to remember events that happened centuries before their birth. Not every famous quest for immortality […]

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The Appalachian Mountains are beautiful by day, but darkness can turn even the most inviting trail into something sinister. For generations, the region’s battlefields, railroad towns, isolated communities, and shadowy forests have inspired stories of restless ghosts, strange lights, phantom animals, and creatures that refuse to fit comfortably into the natural world. Some of these […]

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Mathematics can seem abstract, but modern life runs on ideas that once existed only inside a mathematician’s head. Computer graphics depend on matrices. Aircraft and medical equipment rely on fluid dynamics. Financial systems use accounting methods developed during the Renaissance, while physics depends on mathematical descriptions of symmetry and curved space. Pythagoras, Isaac Newton, and […]

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Movies usually make it obvious whom audiences should support. The protagonist gets stirring music, an emotional backstory, and a triumphant final scene, while the antagonist becomes the obstacle between the hero and a happy ending. However, being an antagonist does not necessarily make someone evil. Sometimes it merely means dating the wrong person, enforcing an […]

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Most lakes follow a familiar routine. Rivers and rainfall fill them, fish live in them, and visitors spend lazy afternoons beside them. Then some lakes swallow themselves, trap methane beneath sheets of ice, produce astonishing amounts of lightning, or preserve entire forests underwater. Some of these places look dangerous without being quite as deadly as […]

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Television has always been capable of turning actors into household names, but the right sitcom can also manufacture a music star. Sometimes the series builds in the transition, with a young performer singing onscreen before releasing records under their own name. In other cases, a sitcom simply gives an ambitious musician the audience needed to […]

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Historical dramas are filled with compromises. Timelines are compressed, conversations are invented, and inconvenient facts disappear whenever they interfere with a satisfying ending. As a result, viewers learn to be suspicious whenever something on-screen seems especially strange. Sometimes, however, the detail that looks like a writer’s bizarre invention is one of the truest things in […]

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Bears possess enormous strength, formidable teeth, and powerful claws, yet their fuzzy fur and lumbering movements can make them look deceptively cuddly. That combination has fascinated people for centuries, inspiring everything from military mascots to beloved stuffed animals. Some basic bear facts are widely known. Black bears can climb trees, polar bears thrive in the […]

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A sudden outbreak of unexplained physical symptoms can be terrifying. Today, doctors can test for countless pathogens, chemicals, and environmental contaminants. Throughout much of history, however, physicians lacked modern toxicology to help them investigate mysterious illnesses. People might blame strange symptoms on contagion, nutritional deficiencies, hereditary disorders, or even curses. In some cases, investigators took […]

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Espionage is one of the rare fields where a job well done is never publicly celebrated or even acknowledged. The public usually learns about an intelligence operation only when a spy is exposed, an operation fails, or governments finally declassify the details decades later. These missions involved more than trench coats, dead drops, and stolen […]

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Somewhere beneath an ordinary-looking lake, streets lead to houses nobody has entered for decades. Across the world, communities were abandoned or forcibly emptied to make room for dams and reservoirs. Homes were demolished, churches were stripped of their bells, and entire populations relocated before the rising water erased what remained. But these places did not […]

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Animal behavior often seems predictable. Swallows follow the summer, ants build colonies, and most creatures run when they encounter a predator or wildfire. But nature keeps throwing researchers curveballs, sometimes from species humans have studied for centuries. Some of these discoveries reveal unexpected intelligence, while others expose physical abilities that sound nearly impossible. Orcas flee […]

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Artists pour their souls into recording studios, but success can create a peculiar kind of regret when one song comes to overshadow everything else they have accomplished. Fans may cherish a familiar anthem forever, while the musician who recorded it must sing the same words night after night, answer the same questions, and watch one […]

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In the winter of 2010, residents of a small Arkansas town awoke to find thousands of dead birds littering their lawns. Just days earlier, tens of thousands of dead fish had surfaced in the same state. It was the kind of coincidence that fuels conspiracy theories, yet investigators ultimately traced the two disasters to entirely […]

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Movie tough guys are expected to throw punches, fire weapons, survive explosions, and walk away from car crashes without looking back. They are not usually expected to stand beneath a spotlight and sing. Yet some of Hollywood’s most intimidating actors have accepted roles requiring them to perform everything from country music and Cole Porter standards […]

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