1. ES-3c Moons, Asteroids, Comets, and Meteors

2. Target I can analyze the difference between Moons, Asteroids, Comets, and Meteors I can compare Pluto to the other objects in the Kuiper Belt. I can explain why Pluto is no longer considered a planet.

3. Moons

4. What are they? Composed of Rock, similar to our Moon Some have atmospheres, most do not Various sizes, some large like our moon, some very small similar to asteroids. (Phobos)

5. Where are they?

6. Moons of Mars as seen from Curiosity rover https://en.wikipedia.org/ wiki/Phobos_(moon)#/m edia/File:PIA17352- MarsMoons- PhobosPassesDeimos- RealTime.gif https://upload.wikimedia.org/wikipedia/commons /d/db/Orbits_of_Phobos _and_Deimos.gif

7. Asteroids

8. What are they?

9. Ceres (dwarf planet) Largest object in the asteroid belt, 587 miles diameter Can it pull itself into a sphere? _______ Icy surface, with a liquid water ocean underneath This is a true color photo taken by NASA spacecraft Dawn in Early 2015. Dawn was the first space craft to orbit an extraterrestrial body. The other missions have been/are fly-bys.

10. Where are they?

11. Chesapeake Bay Impact Crater 35 million years ago

12. Comets

13. What are they? Balls of ice and metal As they approach the sun, the ice is blown back into two tails. The tails always are angled away from the sun.

14. Where are they?

15. Oort Cloud

16. Another perspective:

17. Meteors

18. Meteoroid, Meteor, Meteorite

19. Meteor Showers

20. Dwarf Planets Note the size of Ceres, a dwarf planet in the Asteroid belt. Size is to scale, distance is not. IAU= International Astronomical Union

21. Why called dwarf?

22. Orbits are not in the plane of the ecliptic (sun and other planets).