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TIL The International Potato Center has successfully grown potatoes in a simulated Mars environment. They grew the plants in a CubeSat which mimicked the Martian air pressure and atmosphere, and used saline desert soils analogous to Martian soils as the growing medium.

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wrAP TIL that on a 1983 episode of Three’s Company, John Ritter’s scrotum falls out of his shorts. Viewer complained in 2001 and it was edited out. Ritter’s quote on this: “I’ve requested that they air both versions, edited and unedited, because sometimes you feel like a nut, and sometimes you don’t.”
QJpad TIL that wrasse (a kind of cleaning fish) can keep track of over 100 regular clients. They sometimes cheat certain clients, and if those clients get angry and chase them, they offer a complimentary fin massage. They can also outperform chimps on certain mental impermanence tests.
kkKB TIL: According to the study of Epigenetics, what your grandparents ate for lunch decades before you were even conceived may have altered the genetic material that makes you who you are today.
6Ew67 TIL: Cleopatras' fame as a beautiful seductive master was entirely made by Octavian as a way of explaining how this foreign queen managed to seduce two of Rome's most powerful men, while being described as a beauty, she was best known for her intelligence and charm.
Z8kv TIL that Mister Rogers was awarded 40 honorary degrees throughout his career as an entertainer and educator.