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

2. What was the major result of the Cretaceous-Tertiary Collision?

3. Which of the following planets is NOT known to have a ring system?

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

5. According to Sagan, what was the major advantage of the attitude of the government towards the Apollo project?

Short Essay Questions

1. What would the process of "terraforming" on Mars be like?

2. What does Sagan conclude about the morality of terraforming and planetary colonization?

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

4. Why does Sagan suggest that space exploration aids in protecting the planet?

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

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

7. What does Sagan want to see on Mars?

8. What does Sagan think were the major upsides of the Apollo missions?

9. Why does Sagan believe it is unlikely that a manned mission to Mars will be carried out in the near future?

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

Essay Topics

Write an essay for ONE of the following topics:

Essay Topic 1

Sagan discusses the a manned mission to Mars as a desirable first step in extending the human race out beyond the Earth but identifies many practical problems with any proposed plan.

1) Explain why Sagan believes that a manned mission should be sent to the planet Mars.

2) Discuss some of the proposals for such a mission, what their aims would be, and how they would be carried out technically.

3) Describe the practical difficulties that Sagan outlines and how they could be overcome.

Essay Topic 2

The heliocentric theory was developed by Copernicus, Galileo, and others, and uprooted the dogmatically endorsed geocentric theory, forever changing the nature of scientific thought in the West.

1) Describe heliocentric theory and the scientists who proposed and developed it.

2) Explain some of the abnormalities and observations that lent support to the heliocentric theory.

3) Discuss the reasons that Sagan believes heliocentric theory was opposed by the church.

4) Describe the impact of the victory of the heliocentric theory over the geocentric model on scientific thinking in the West.

Essay Topic 3

Sagan suggests that the colonization of distant worlds is both feasible and critical to humanity.

1) Explain how does Sagan envisions colonization of distant worlds occurring. What would be the motive for such efforts?

2) Discuss some of the targets that Sagan suggests for colonization, including non-planets.

3) Describe why Sagan believes that colonization is critical to securing the safety of the human race.

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