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TIL the idea that house dust is mostly composed of dead skin is a complete myth

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690Mw TIL Neptune is not blue in colour, instead it's pale greenish-blue, as is Uranus. The original photos of Neptune taken by Voyager 2 in 1980s had been enhanced to highlight it's atmospheric features. Over time the captions of this changes were left out and blue became the defining colour of Neptune.
R575l TIL of James Clerk Maxwell who wrote the first equations unifying electricity, magnetism, and light as being part of the same phenomenon.
d6M7 TIL of the Sagrada Familia: A church in Barcelona that has been under construction for over 130 years, and is still not expected to be complete by 2026 at the earliest estimate.
0w8lN TIL that Sitting Bull's remains were stolen from the Standing Rock Reservation, by his granddaughters, and buried in Mobridge SD. There a monument of Nancy Kicking Bear, a granddaughter of Sitting Bull, was erected.
xJ4k TIL the TV series Captain Planet was the first children’s show to deal with HIV-AIDS. The episode involved a villain brainwashed a community, making them think HIV could pass on just by casual contact, making the entire town hate a young man infected by HIV, voiced by Neil Patrick Harris.