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TIL the motto of Spain was originally Non Plus Ultra ("Nothing further beyond") but after the discovery of the New World it was reversed to be Plus Ultra ("Further beyond").

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Z8vWY TIL that the ozone layer is recovering and restoring wind circulation (and it is not due to lockdown)
mnYv TIL the total power of sunlight striking Earth’s atmosphere is estimated at 174 Petawatts. That’s 174 quadrillion watts.
WkrX9 TIL Sharks can suffer from cancer. The misconception that sharks do not get cancer was spread by the 1992 book 'Sharks Don't Get Cancer' by I. William Lane and used to sell extracts of shark cartilage as cancer prevention treatments.
dDAyK TIL, canines have a more sensitive CFF of up to 80Hz or 80 flickers per second. "This might explain why most dogs cannot be planted in front of the television to engage them, it doesn't look real."
OEv4 TIL For nearly a century, the French have prohibited entry into an area of more than 460 square miles because there is an almost impossible amount of ammunition and dead bodies to recover from the battlefield’s of World War One. The area is called “Zone Rouge”, and much of it is still off limits