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TIL That 99.9% of Calico Colored Cats are Female

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6lgX TIL that there are more museums in the U.S. than there are Starbucks and McDonalds combined
4kLXa TIL: During the peak of the Vietnam war the Củ Chi tunnels linked Viet Cong support bases over a distance of 250 kilometers (155 miles), from the outskirts of Saigon all the way to the Cambodian border.
6EgJQ Jupiter is made of mostly hydrogen and helium gas. So, trying to land on it would be like trying to land on a cloud here on Earth. There's no outer crust to break your fall on Jupiter. Just an endless stretch of atmosphere. The big question, then, is: Could you fall through one end of Jupiter and out the other? It turns out, you wouldn't even make it halfway.
mx4pE TIL Nearly 3% of Antarctic ice in glaciers is penguin urine
vPejD TIL: Starfish Prime was the largest nuclear test in space. At 250 miles in the air, it EMPed 900 miles of Hawaii, frying electrical systems, setting off burglar alarms, and shut down 6+ satellites due to the months long radiation belt. After 5 years, traces of the electrons still linger in space.