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TIL Sunspots are used to observe the sun's rotation and have an average lifespan of 2 weeks. A magnification of 40x-50x in a filtered telescope shows a full-disc view of the Sun, and if sunspots are present, they will appear quite small

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ynew TIL A Japanese farmer discovered a gold seal while repairing an irrigation ditch in 1784. The seal turned out to be 95% pure gold and was a gift from the Chinese Emperor to a Japanese envoy from 54 CE, the earliest recorded date of contact between the two countries
5VkB TIL that when the Apollo team jettisoned their lunar module, the collision caused “the entire Moon [to ring] like a gong, vibrating and resonating for almost an hour after the impact.”
NXdoM TIL The cast of Futurama made a full-length radio episode reunion.
DQA7j TIL a 2,000 person riot occurred in April 1998 at Ohio University after the bars closed early due to the daylight savings time change, resulting in over 30 arrests, the deployment of rubber and wooden projectiles by police, and one person being charged for punching a police horse.
LX10 TIL that Hunter S. Thompson once called Bill Murray at 3:30 in the morning to inform him about a new idea that should revolutionize the American sports industry. He called it “Shotgun Golf”.