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TIL, every year on August 5th the Mars Curiosity rover is programmed to sing itself happy birthday

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78x6L TIL several mental illnesses reduce life expectancy more than heavy smoking. The average reduction in life expectancy in people with bipolar disorder is between 9-20 years, it's 10-20 years for schizophrenia, and 9-24 years for drug & alcohol abuse. The reduction for heavy smokers is 8-10 years.
J16Zv TIL Aldous Huxley was tripping on acid when he died
ne57o TIL that the annual Exxon safety calendar featured the Exxon Valdez for the month of March in 1989. On March 24th, 1989, the Valdez ran aground - the most devastating environmental oil spill in history.
PYRdE TIL Humans Are Currently Causing The Sixth Mass Extinction
6vvm TIL Near human-like levels of consciousness have been observed in the African gray parrot