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TIL the "jellyfish effect" (or "space jellyfish") is when a rocket's high-altitude exhaust plume is illuminated by sunlight before dawn or after dusk

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4QNa TIL that the tombstone marking John Belushi’s original burial location on Martha’s Vineyard has a skull and crossbones that reads, “I may be gone but Rock and Roll lives on.”
1aNg7 TIL it's illegal to let your donkey sleep in your bathtub in Arizona. In 1924, a merchant near the town of Kingman let his donkey sleep in an old bathtub when a local dam broke. The donkey was swept away in the tub and the locals spent a lot of manpower rescuing the animal. The donkey survived.
Brkxd TIL we only know about MKUltra because while the CIA was trying to destroy all the files on it due to paranoia around Watergate, some of them were sent to the wrong office and not destroyed
4g8o TIL All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye’s lens. People who undergo surgery to remove the lens can detect ultraviolet light.
e0akE TIL, in 2011 Apple had more cash than the United States Treasury Department.