1. My Very Educated Mother Just Served Us Nine Pies

2. °Our solar system is comprised of the sun, 9 planets, asteroids, meteoroids, and comets °Our sun is one of 200 billion stars that make up the Milky Way galaxy °The Milky Way galaxy is one of 200 billion galaxies that make up the universe

3. ° The planets are divided into 2 groups: inner and outer

4. The inner planets are small and terrestrial (earth-like, rocky)

5. Mercury

6. heavily cratered, resembling our moon

7. trace atmosphere

8. 59 days to rotate 88 days to revolve (2 revolutions = 3 rotations)

9. largest temperature range 700 °F to -300 °F

10. ° no moons ° about the size of earth’s moon ° may be the remnant core of a planet

11. Venus

12. ° our nearest neighbor ° almost the same size as earth (sister planet)

13. inhospitable ° 97 % of the atmosphere is CO2 runaway Greenhouse Effect 900+ °F (hottest planet) ° air pressure 90 times that of earth ° sulfuric acid in the atmosphere give it a yellow tint

14. retrograde (clockwise) rotation

15. no moons

16. 3 brightest object in our sky

17. Mars

18. polar ice caps of CO2 and water which get larger and smaller with the seasons

19. the surface has an orange color due to iron oxidizing (rust)

20. several bits of evidence which suggest water: channels, river beds, ice caps

21. Olympus Mons, the largest volcano in the solar system (300 miles in diameter and 17 miles high)

22. almost the same size as Arizona

23. 2 moons: Phobos and Deimos

24. Asteroid belt rocky objects orbiting the sun between the inner and outer planets

25. they generally look like a potato

26. The Outer Planets

27. The Outer Planets: huge, Jovian (Jupiter- like), gaseous, moons, and rings And pluto

28. Jupiter

29. largest planet Great Red spot (2-3 times the size of earth)

30. Europa (moon) may have ocean under its ice crust

32. Io (moon) has atmosphere and active volcanoes

33. Saturn

34. less dense than water

35. 1,000+ rings

36. Uranus retrograde rotation (backwards)

37. axis of rotation is nearly 90° may be due to a collision with Miranda (moon)

39. Neptune

40. Great Dark Spot comes and goes

41. Pluto & Charon

42. not Jovian is now considered a dwarf planet consists of ice and rock Charon may be its double planet (half the size of Pluto) sunlight takes 6 hours to reach it most eccentric orbit (closer than Neptune from 1979-1999) travels in a tilted orbital plane