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TIL Hubble watched a failed supernova turn into a black hole before its very eyes. These so-called "massive fails" (seriously) are thought to occur when the core of a star is so huge its exploding shell of gas cannot escape, and instead collapses back in on itself.

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ne7n9 TIL Submarine R-14, after losing all fuel and communications, reached Hawaii by building a sail out of blankets
BDWW TIL of Cincinnati Freedom, a cow that jumped a 6 foot fence at a slaughterhouse in Cincinnati, only to evade police officers for 11 days, making national news headlines, and eventually living out the rest of its life in NY.
xlZ5 TIL Watson and Crick, famous for discovering the DNA double helix model, essentially stole their information from female scientist Rosalind Franklin.
nej8W TIL As part of its military fortifications, Switzerland has set up thousands of demolition points that allow them to blow up their own roads, bridges, and railroads in the event of emergency, sabotaging all entry points into the country.
4kggw TIL that percent of women receiving computer science degrees in the United States has dropped by half since the 1980s.