Pluto was not discovered by a famous professor or a decorated scientist. It was discovered by Clyde Tombaugh, a farm kid who loved the night sky so much that he taught himself how to build telescopes and began sending his planet sketches to professional astronomers. At the time, Tombaugh had no college degree in astronomy. But he had something else. Patience. Precision. Obsession. In 1929, Lowell Observatory hired him to search for a possible ninth planet, a mysterious “Planet X” that scientists

Planet Sketch, The Best of Napkin Squirrel (season 2)