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TIL since 2020, white LED streetlights have been turning purple because of a defect during the manufacturing process between 2017 and 2019. The yellow phosphor coating was delaminating, and the blue LED began showing through, giving off a purplish glow.

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Oo8nL TIL There are whales alive today who were born before Moby Dick was written
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b6nrE TIL about mammoth hunters, people in Russia's far north who hunt for and sell "ice ivory": the tusks of mammoths. Some will illegally utilise firefighting equipment to melt ice and dig huge tunnels into the ground in search of remains.
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