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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 21, To The Sky!, Chapter 22, Tiptoeing Through the Milky Way.

Multiple Choice Questions

1. Sagan suggests that the Apollo missions were primarily about what?
(a) Military strategy.
(b) Technology.
(c) Politics.
(d) Science.

2. What astronomical discovery did Galileo make that significantly damaged the geocentric theory?
(a) Gravity moves the planets.
(b) Jupiter has its own moons.
(c) Stars are stationary relative to the Earth.
(d) Planets move in ellipses.

3. Which of the following is NOT one of the missions that observed Venus using radar telescopes?
(a) Venera.
(b) Magellan.
(c) Vesta.
(d) Pioneer.

4. What is notable about the Sun's light in Sagan's distant picture of the Earth?
(a) It appears to bathe the Earth in light.
(b) It creates a halo around the Earth.
(c) It appears as many distinct shafts of light.
(d) It is extremely dim.

5. In what year did humans visit the moon for the last time?
(a) 1979.
(b) 1972.
(c) 1969.
(d) 1975.

Short Answer Questions

1. What did Steven Hawking worry about with regard to black holes?

2. The Voyager probes found large amounts of what element on Titan?

3. What concept does Sagan suggest that the image of the "pale blue dot" mocks?

4. What is the farthest orbital location that humans have ventured to since the last time men went to the moon?

5. What does Neptune's moon have less of compared to Titan?

(see the answer key)

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