Aug. 24, 2006: Pluto Deplanetized

  By Tony Long and Doug Cornelius 2006: Pluto, once the ninth planet from the sun, is downgraded to a mere “dwarf planet.” Our solar system loses a favorite kid brother and now has, officially, only eight planets. Pluto was discovered by American astronomer Clyde Tombaugh on Feb. 18, 1930. Comparing photographs taken of the [...]