How Big is the Solar System?August 7th, 2013
Joe Hanson of It’s Okay to be Smart illustrates just how large our Solar System is. People have a difficult time actually perceiving the size of the Solar System and how relatively tiny the planets are in relation. Hanson begins with a grapefruit representing the Sun and walks back to each of the planets. He even includes the planetoid, Pluto, for us lovers of Pluto. In relation to the grapefruit Sun, Earth is about 11.6 meters from the Sun and Earth is just 1 millimeter in diameter. The Asteroid Belt is the equivalent of a single grain of salt, crushed and scattered throughout the Belt’s orbit. And Neptune is more than 350 meters out, where the grapefruit Sun is no longer visible.