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TIL one of Jupiter's moon, Europa is known to have a huge ocean underneath its icy surface. NASA is developing an ice-penetrating technology called ARCHIMEDES that uses laser light to penetrate Europa's crust and allow explorers to access its underlying ocean.

Read more science.nasa.gov

via reddit.com

kOgLm TIL: Johnny Cash and his first wife Vivian, named their daughter, Rosanne, after Cash's nicknames for his wife's breasts, "Rose" and "Anne."
awpmM TIL The New York Times was hoaxed into running an article about "grunge speak." A reporter pressured a receptionist from Sub Pop Records about whether grunge fans had their own slang. On the spot, she made up terms like "harsh realm," "cob nobbler" and "lamestain." The article was never corrected.
yQ8vl TIL that 'Die Hard' is a sequel to Frank Sinatra's 1968 movie 'The Detective.'
VMGkG TIL Stamps are considered a financial liability until they are used, so buying stamps does not provide the United States Post Office with more revenue. Only after the stamps are used can they be credited for revenue.
vPEj4 TIL Jim Carrey was trained by a specialist that trained CIA operatives to endure torture. While working on The Grinch, he wanted to quit because of the 8 hours of the heavy make up prep, but the producer hired the specialist and Carrey was able to go through the make up process 100 times.