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TIL: For All Moonkind is a nonprofit working with the UN to preserve human heritage in space to protect damage to historical sites by tourists or errant explorers. It consists of Space Lawyers, policymakers, and space archeologists. It receives bipartisan support in the US.

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9YDaB TIL that the Arctic Circle is currently drifting northwards at a speed of about 15 m (49 ft) per year.
nerXd TIL The Triangle is theoretically an instrument of indefinite pitch, for its fundamental pitch is obscured by its nonharmonic overtones. Triangle parts in classical music can be very demanding and "the triangle is by no means a simple instrument to play"
nPV7 TIL the taco’s origin is unknown, but it was popularized by a group of “available” Mexican women called “the Chili Queens”.
XGYk TIL Despite being the face of anti-establishment. Guy Fawkes was a religious extremist, who tried to overthrow the king to establish a Catholic monarchy.
woJn8 TIL astronauts on board the ISS need to sleep near a ventilator fan. Warm air does not rise in space so astronauts in badly-ventilated sections end up surrounded by a bubble of carbon dioxide.