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TIL that the black hole TON 618 is a very bright object in space that is located near the border of two constellations. It has one of the most massive black holes ever found and is as bright as 140 trillion suns. It’s located very far away from Earth, about 18.2 billion light-years away

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9Ylk6 TIL that a group of sperm whales adopted a bottlenose dolphin with a spinal deformation, after it was lost from its own dolphin group.
16w7D TIL that according to etymologists and all searches conducted of historical usage, the term “bucket list” as the idiom we know today was never used in any book, newspaper, or publication until the movie “The Bucket List” came out in 2007. All prior uses have been debunked as misdated.
wLY48 TIL The oldest-known message in a bottle was tossed overboard from a German ship in 1886 and found off the coast of Wedge Island, Australia earlier this year.
kOZk5 TIL of Stubbins Ffirth who attempted to prove that Yellow Fever wasn't contagious by smearing vomit, blood, saliva, and urine from patients in open wounds on his arms. While he never got sick, it later emerged that the samples he used had come from late-stage patients who were no longer contagious
j696X TIL: The ruins of Diocletian's Palace became shelter for the few remaining civilized people after the fall of the Roman Empire, taking advantage of the palace's robust walls from Barbarian raids. Over time it turned into the city of Split, as people settled and built homes inside the palace walls.