One unsolved mystery, every morning at 8am.
A five-minute read on something nobody has figured out yet: what's known, why it's resisted an answer, the theories in contention, and what it would actually take to settle it. Then you tell us where you stand.
Today's mystery
№ 000219 AUGUST 2026DEATHURAL MOUNTAINS, USSR
Nine Hikers, One Mountain, No Explanation
Unsolved since 1959In February 1959, nine experienced hikers cut their way out of their own tent, from the inside, and walked into a Siberian night forty degrees below zero. A 2021 physics paper finally explained how. It still can't explain why.
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