The Sailing Stones of Death Valley: The Geological Mystery That Solved Itself
Heavy rocks move across a flat California desert, leaving winding tracks. Discover the ice-and-wind physics that solved the mystery of the sailing stones.
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Tuesday, September 22, 2026
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Unsolved Science
The Taos Hum: The Unsolved Noise That Baffles Scientists and Drives Residents Mad
Heard by only 2% of the population, the Taos hum is a low-frequency rumble in New Mexico that has never been explained. Discover the theories behind this acoustic mystery.
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Why the 72-Second WOW! Signal Remains Space’s Greatest Unsolved Mystery
Detected on August 15, 1977, the WOW! signal was a 72-second blast of radio noise from deep space that has never been explained. Discover why this cosmic whisper remains unsolved.
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Hessdalen Lights: The Glowing Orbs of Hessdalen Valley
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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Devils Kettle Falls: The Waterfall That Swallows Half a River
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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Scientists Have No Idea What 3I/ATLAS Really Is — And That’s Terrifying
An object from outside our solar system is passing through right now — and scientists can’t agree on what it is. 3I/ATLAS has 12 anomalies that don’t fit standard comet models. Here’s what we actually know.
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