3. Asteroids

4. Found between Mars and Jupiter. Asteroids

5. Over 100,000 asteroids. Vesta is the largest – 330 miles in diameter. Size range – 330 miles to about 100 yards. Irregular-shaped rocky bodies. Some asteroids have moon(s). Asteroid Facts

6. Asteroids and Meteorites. How Are Asteroids, Comets and Meteors Different? Dawn’s Virtual Flight Over the Asteroid Vesta.

7. Comets

8. Are made of ices and rocky material. Are called “dirty snowballs” or “icy dirtballs.” Comets are made up of three parts. Comets

9. Nucleus – Made of ices – water, dry ice, ammonia as well as dirt and rocks.

10. Coma- Vaporizing (turning from solid to gas) gases surrounding nucleus.

11. Tail – gas and dust pushed away from comet by “solar wind.” Always points away from the Sun.

12. From where do they come? Comets The Kuiper Belt The Oort Cloud

13. The Kuiper Belt is found beyond the orbit of Neptune to 12 billion miles from the Sun. Comets

14. Oort Cloud is about one light year from the Sun.

15. Comets What Are Comets? Kuiper Belt Oort Cloud

16. Meteoroid, Meteor, Meteorite

17. These are made of rocks and dirt. A meteoroid is when the rocks or dirt are in outer space. Meteoroid, Meteor, Meteorite

18. A meteor is when the rock enters the atmosphere.

19. It is also known as a “shooting star.”

20. A meteorite is when the rock hits the Earth.

21. Meteoroids, Meteors, and Meteorites. Ten Biggest Meteor Strikes in History Russian Meteor

22. The presentation ends here.