Pale Blue Dot: A Vision of the Human Future in Space Test | Final Test - Hard

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This test consists of 5 short answer questions, 10 short essay questions, and 1 (of 3) essay topics.

Short Answer Questions

1. Sagan says that the moon was once understood as a symbol of which of the following?

2. What fuel source might be viable within asteroids?

3. At the time this book was written, about how many asteroids were known to have paths that take them close to the Earth?

4. What is the primary way that humans add carbon dioxide to the atmosphere?

5. According to Sagan, how profitable is it for a nation to invest in space exploration?

Short Essay Questions

1. How well can an asteroid's path be calculated?

2. What does Sagan believe would be necessary for the safety of the human race to be secured?

3. What promising signs does Mars have for being host to life?

4. What location in the solar system either have or are believed to have once had volcanoes?

5. What is the purpose of SETI and how does it operate?

6. What is unusual about the ring systems of the planets in our solar system?

7. What does Sagan say that it is probably the fate of humanity to "live in the dark"?

8. How is Venus similar to Earth?

9. What resources does Sagan believe that carbon asteroids have that make them suitable for human habitation?

10. What does Sagan believe black holes have to offer?

Essay Topics

Write an essay for ONE of the following topics:

Essay Topic 1

Neptune is the most distant planet in the solar system.

1) Describe how Neptune was discovered.

2) Discuss and explain some of Neptune's distinguishing characteristics, including its warmth and Jupiter-like atmosphere.

3) Summarize Sagan's assessment of the planet an its importance in the field of space exploration. Why was it visited by the Voyager probes?

Essay Topic 2

Uranus was the first new planet discovered, aside from the five known to ancient cultures.

1) Discus the discovery of Uranus and what made this discovery unusual and unique.

2) Describe the planet Uranus, including a discussion of its unique inclination and theories to explain this feature.

3) Discuss Sagan's impression of the planet and the likelihood that it or its moons could harbor life.

Essay Topic 3

The Apollo Missions had an enormous impact on the field of space exploration, on the international status of the United States, and on the public's interest in space and science in general.

1) Describe the Apollo moon landings, their operation, mission, and the scientific information gained from them.

2) Discuss the effect that Sagan says the landings had on the international standing of the United States.

3) Explain how the moon landings impacted the field of space exploration and sparked the public's interest in the field. Cite Sagan's arguments to explain specific ways that this occurred.

(see the answer keys)

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