› added 6 years ago

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TIL that 97% of the galaxies in our observable Universe are permanently unreachable by humans. The Universe is expanding so rapidly that even if humans left earth today, travelling at the speed of light, they could only ever reach about 3% of the total number of galaxies in our observable Universe.

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rN18w TIL In 1943, a Luftwaffe pilot came across a crippled B-17 trying to make it home after a bomb run. Instead of shooting it down, the German pilot escorted it home. The pilots met up 50 years later and became friends, and both died within a few months of each other
YrMd TIL movie theaters make almost no money from ticket sales and profit almost solely on concessions
LDgQ TIL the #3 cause of death in America - behind heart disease and cancer - is medical mistakes
7rJb7 TIL that The Monuments Men actually aimed to bring all German artwork back the United States, until the German people protested.
XEAQP TIL Some bluebottle jellyfish sails are right-handed and some are left-handed, across the body, so when the wind comes up it only grabs the ones with the sail going the right way for that particular breeze. It's nature's way of making sure the population never becomes extinct.