1. Pluto By: Matt and Luke

2. Pluto Pluto’s orbit is about 5,913,520,000 km from the sun Diameter: 2274 km Atmosphere contains: Nitrogen, Methane, and Carbon monoxide gases It takes Pluto about 248 Earth years to complete one revolution around the Sun and it rotates in the opposite direction of the other planets

3. Pluto Pluto’s orbit has an effect on it’s atmosphere. Pluto’s orbit is highly inclined, which causes Pluto to actually become closer to the sun than Neptune at a certain point in it’s orbit. Pluto is far from the sun it’s gases in the atmosphere freeze and when it is closer the surface melts releasing the gases back into the atmosphere.

4. Pluto Surface temperature when close to the sun is 43 Kelvin Surface temperature when far away is 36 Kelvin.

5. Pluto Pluto was discovered on February 18 th, 1930 Discovered by Clyde W. Tombaugh From 1930 to 2006 Pluto was considered our Solar system’s ninth planet. It is now considered a Dwarf planet Pluto has three moons: Charon, Nix, and Hydra

6. Pluto Charon is Pluto’s largest moon and was discovered in 1978 by astronomer, James Chritsy. Diameter: 1,205 Later on in 2005 Nix and Hydra were discovered. Nix’s diameter: 91 km Hydra’s diameter: 114 km

7. Pluto In 1992, astronomers discovered small icy objects behind Neptune that were similar in size and orbit to Pluto. This ring of objects, along with Pluto, were classified as the Kuiper belt. Its like an asteroid belt, except larger and consist of frozen objects.

8. Pluto Pluto has no been visited yet by a spacecraft. A space craft was launched in January 2006, and is expected to reach Pluto during the year 2015 Only observations have been done through the Hubble space telescope.

9. Pluto Through observations scientist predict that Pluto’s inner composition is about 60% rock and 40% ice. It’s core is made up of rock and it is surrounded by a mantle of ice.

10. Pluto http://www.youtube.com/watch?v=FqX2Ydnw tRc