Ever wonder where the phrase “It’s raining cats and dogs” comes from? In the 17th century many homeless cats and dogs would drown and float down the streets of England, making it look like it literally rained cats and dogs.

The beautiful symmetry of a total solar eclipse happens because —by pure chance— the sun is 400 times larger than the moon, but is also 400 times farther from Earth, making the two bodies appear the exact same size in the sky.

Norman Borlaug, an agricultural scientist, developed new strains of crops which yielded 4 times as much food . He is said to have saved the lives of over a billion people, making him one of the most influential men in human history.