Perhaps one of the greatest aspects of modern astronomy was the "Great Pluto War". Astronomers had been looking for "Planet X" for decades before Clyde W. Tombaugh finally discovered Pluto in 1930, and until this decade, textbooks and other references listed Pluto correctly as the ninth planet in our solar system. Pluto's planethood status has been the subject of much controversy since 1992, when the first Kupier Belt was discovered. Finally in 2006, the International Astronomical Union (IAU) created an official definition for the term "planet", which Pluto failed to completely meet. In August 2006, Pluto was demoted from a planet to one of the forty-plus dwarf planets in our solar system.
For an extra 50 points, draft a timeline of Pluto's "life" in the solar system, from the time of its discovery to its demotion. Include any information you deem necessary. The only requirement is that you include the IAU's redefinition of a planet which reduced the number of planets in our solar system. There is no standard for how much information you include in your timeline. Instead, I will grade all submissions based off the one which I deem to be the most thorough and the most accurate. Each entry is guaranteed 30 points, but you can earn at least 50.
Be creative! I am leaving the assignment vague so that you may come up with your own methods.
Maximum Points: 50
Minimum Points: 30
This extra credit assignment will be due on Wednesday, July 4, 11:55 PM ET.
PLEASE CITE YOUR SOURCES!!
Happy hunting!