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TIL that a star called R136a1 is the most massive (265 solar masses) and most luminous (8,700,000 times the luminosity of the Sun) star known.

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5YQYQ TIL of May 35th, the date Chinese dissidents use to fool the censors when commemorating the anniversary of Tiananmen Square, June 4th, 1989
awpjy TIL while high on substances and during a meeting with a CBS exec in Germany, Ozzy Osbourne performed a Nazi goose-step on the executive's table before dipping his testicles in the executive's wine and then urinating in it. He only came to find out what he had done later by Sharon Osbourne.
a894o TIL I learned about the HMS Thesis submarine disaster. It had an escape chamber that saved 4 lives but the fifth person panicked when using it, dooming all 98 others aboard.
NxkM TIL ESPN used to show Magic: The Gathering tournaments.
yQVve Take a look out your window and you're bound to see a dinosaur or two—or at least the descendant of one. That little blue jay? Dinosaur. The obnoxious early rising crow? Dinosaur. The squirrel running up the tree? Well, that’s still a squirrel. But those feathered friends make your yard a real-life Jurassic Park. Most researchers believe birds are descendants of a group of dinosaurs that included the Tyrannosaurus rex. Fossil research has shown that birds and dinosaurs shared behaviors such as brooding and nest building. According to paleontologist and National Geographic grantee Jack Horner, it also stands to reason that dinosaurs had similar courting behaviors as today’s birds. Because various bird species tap-dance, moonwalk, and boogie to impress potential mates, it makes sense that dinosaurs did the same. Just imagine a giant T. rex with its tiny T. rex arms "twerking" its way into the heart of its intended. In this week’s Today I Learned, Horner explains how dinosaurs might have been the original smooth criminals.Read more about one species of Triceratops, Triceratops horridusAdditional footage provided by Cornell Lab of Ornithology