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TIL long before trees overtook the land, Earth was covered by giant mushrooms

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epEo6 TIL It is said that not even Nicolaus Copernicus ever saw planet Mercury. The reason is that, as an inner planet (to Earth), it will never angularly move away more than 28 degrees from the Sun
4XA9R TIL that scientists believe that people with blue eyes share a common ancestor. This eye colour was caused by a genetic mutation about 6000 to 10000 year ago most likely around the eastern Baltic Sea.
yQgLw TIL about two guys who used a decommissioned Atlas Missile Silo to produce an estimated 90% of the LSD sold in America in the late 90's and early 2000s.
kkYd TIL that a Nixon White House official who was jailed for directing the Watergate burglary team is now a scholar on ethics in government.
w0PY TIL 1 kg of coal can generate 8 kWh of heat, whereas 1 kg of uranium 235 can generate 24,000,000 kWh of heat.