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TIL that gravitational waves have a frequency conveniently within the range of human hearing. This is the sound of two black holes spiraling into one another, echoing through the universe for billions of years

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697yW TIL that the Great Pyramid of Cholula is the largest pyramid by volume known to exist. It's shorter but wider than Giza and consists of multiple structures build overtop one another.
JYaKV TIL the groundhog and woodchuck are the same animal.
BpjD TIL Pope Francis is against Catholics partaking in communion if they vote for women’s reproductive rights. Even if that person is a medical professional.
VBA5B TIL The migratory monarch butterfly known for its spectacular annual journey across the Americas was officially declared Endangered in 2022.
OOAL TIL concrete can be made translucent by incorporating optical fibers in merely 4% of its volume. The material feels and behaves just like concrete, but allows light to pass through.