1. Solar System (Sizes to scale)

2. Inner solar system… Consists of: –Sun –Mercury –Venus –Earth Moon –Mars –Asteroid belt Ceres –Other debris Asteroids

3. Sun Contains 99.8% of all the mass of the solar system Only star in our solar system 865,000 miles in diameter

4. Mercury Closest planet to the sun The smallest of the 8 planets 2 nd hottest planet Very rocky… like Earth No stable atmosphere

5. View from Mariner 10 (1974) of Mercury

6. View from Messenger (2008) of Mercury

7. Venus 2 nd closest planet to the sun Hottest planet –Reach 860 degrees Fahrenheit Dense atmosphere –Mainly Carbon Dioxide –Greenhouse effect Why its so hot! Sister planet

8. Hot, rocky surface of Venus

9. Clouds of Venus

10. Mars 4 th planet from the sun –After Earth Atmosphere mainly Carbon Dioxide Polar ice caps –Frozen water Used to have liquid water in the past

11. Mars surface

12. Olympus Mons is the largest mountain in the solar system

13. Asteroid belt Rocks that never clumped together to form a planet Proto-planet –Ceres Can sometimes make way into inner solar system

14. Gaspra- Asteroid found in the Asteroid belt (1991)

15. Outer solar system… Consists of: –Jupiter –Saturn –Uranus –Neptune –Kuiper belt Pluto –Scattered disc Eris

16. Jupiter Largest planet in solar system Mainly Hydrogen and Helium –Enough gravity to hold onto these light elements Not rocky… Gas giant Has 63 moons… 47 of which are named

17. Is Jupiter large?

18. Hurricane the size of Earth

19. Saturn 2 nd largest planet Known for its rings  debris orbiting the planet Very similar to Jupiter One of its moons, Ganymede, is larger than Mercury… and is the only moon to possess an atmosphere

20. Is Saturn large?

21. Voyager image of Saturn’s rings

22. Uranus 7 th planet from the sun Completely tilted on its axis –97.77 degrees Winds can reach up to 560 mph Many poisonous gases in the atmosphere

23. Neptune Farthest planet from the sun Fastest winds in the solar system –1300 mph Methane atmosphere Dark spots are huge hurricanes

24. Kuiper belt This is where Pluto is found Similar to the asteroid belt –Contains debris that didn’t become part of a planet

25. Largest objects found in the Kuiper belt

26. Put it all together… Mercury-Venus-Earth-Mars-Asteroid belt-Jupiter-Saturn-Uranus-Neptune-Kuiper belt (Pluto)-Scattered disc (Eris)