1. Have you thoroughly read chapter 6?

2. Which of the two Voyagers was launched first?

3. Name the Galillean moons of Jupiter.

4. How long is a day on Saturn (i.e. in how many hours does it rotate)?

5. What are the two largest moons in the solar system?

6. Name all 9 planets in order of current distance from Sun.

7. In what country were the microscope and telescope invented?

8. In what year were the Voyagers launched?

9. What was Huygens' religion?

10. Will the Voyager spacecraft ever return to earth?