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TIL that during nuclear testing in Los Alamos in the ‘50s, an underground test shot a 2-ton steel manhole cover into the atmosphere at 41 miles/second. It was never found.

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via reddit.com

rREWw TIL that Buzz Aldrin's first words on the moon were "Beautiful view. Magnificent desolation."
awVv9 TIL that all Disc Galaxies rotate at about the same frequency (about once per billion years).
epDk TIL that a moment is 90 seconds.
mdEv TIL that over 350 documented cases of lynchings happened in California. But unlike their Southern, African American counterparts, the victims of this violence were largely Latino.
8aO6a TIL the longest named muscle is the 'levator labii superioris alaeque nasi'. It's the muscle that is used when sneering.