Deep in the Indian Ocean, the iron-clad snail absorbs dissolved metals from hydrothermal vents to forge its own magnetic, metal-plated armor. Discover how this deep-sea creature thrives in conditions that would dissolve other shells.
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Encephalitis lethargica was a mysterious sleepy sickness that infected millions, leaving survivors locked in a catatonic, frozen state for decades.
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In 1590, a supply ship returned to Roanoke Island to find all 115 settlers had vanished, leaving behind only the cryptic word “CROATOAN” carved into a post.
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In 1518, hundreds of people in Strasbourg danced uncontrollably for weeks until they died of exhaustion and heart attacks. Here is the medical mystery explained.
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Since the 1980s, unexplained glowing orbs have floated, darted, and flashed in Norway’s Hessdalen Valley. Discover the scientific theories behind this light show.
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At Devil’s Kettle Falls, half a river vanishes into a stone pothole. Discover the geology and the decades-long scientific struggle to find where it leads.
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The Mpemba Effect is a counterintuitive physics paradox where warm water freezes quicker than cold water under identical conditions.
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The Turritopsis dohrnii jellyfish can reverse its lifecycle from adult back to polyp when threatened, making it biologically immortal.
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The Voynich Manuscript is a 15th-century book written in a language nobody has ever translated, filled with drawings of plants that do not exist.
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Modern concrete crumbles in decades, but ancient Roman harbors still stand after 2,000 years under seawater. Here is the volcanic secret behind Roman concrete.
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