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TIL the 1908 Tunguska event flattened over 80 million trees across 830 square miles in Siberia, caused by an asteroid explosion in the atmosphere that left no impact crater.

Read more nasa.gov

via reddit.com

mxN0P TIL - Most of the smoke billowing up from a space shuttle launch is not exhaust. It is water vapor from the pool of water under the shuttle designed to absorb the acoustic shock waves that could otherwise tear the shuttle apart.
kJYrg TIL Although popular culture has them associated with medieval castles since the 19th century, underground prisons, dungeons and oubliettes were not as common in English Castles. Evidence suggests that rooms previously identified as dungeons, were in fact storage rooms for ice, or drainage pipes
rP6y TIL that when Charles II died the autopsy stated that his body “did not contain a single drop of blood; his heart was the size of a peppercorn; his lungs corroded; his intestines rotten and gangrenous; he had a single testicle, black as coal, and his head was full of water.”
NAJP TIL when asked what his inspiration was for the Funkadelic album “Free Your Mind…and Your Ass Will Follow”, George Clinton said it was an attempt to “see if we can cut a whole album while we’re all tripping on acid.”
JPn1 TIL: In 2007, a 55 year-old Slovenian man swam the Amazon, 3,274 miles, non-stop over 66 days. When told that his daily intake of two bottles of wine should be lessened for his health, he responded “I have to drink, I have to swim-I am Martin!”