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 cautions that the beliefs he endorses could lead to an overabundance of what?

2. What is the primary distinguishing feature that SETI looks for to identify a communication from an intelligent source?

3. What element does Sagan say motivated the space programs of the 60s and 70s?

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

5. Sagan describes the "myth" that he believes should be created as centering around what?

Short Essay Questions

1. How could planetary tides pull a small planet apart?

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

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

4. What does Sagan want to see on Mars?

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

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

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

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

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

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

Essay Topics

Write an essay for ONE of the following topics:

Essay Topic 1

The geocentric theory of the solar system stated that the sun, the moon, and the planets orbit around the Earth. This world-view was formally endorsed for more than fifteen hundred years, but was eventually shattered by the heliocentric theory.

1) Explain the geocentric theory, including the details of its layout for the solar system and how it accounted for some of the abnormalities in the orbits of the planets.

2) Discuss the origin of this theory and how it came to be embraced by scholars and religious leaders alike.

3) Describe some of the shortcomings of this theory, according to Sagan's arguments.

Essay Topic 2

Mars is Earth's nearest neighbor and the best candidate for human exploration and settlement.

1) Explain some of the characteristics of the planet Mars, including those that make it a good candidate for human colonization.

2) Discuss the indicators on Mars that suggest to Sagan that life could be found on the planet.

3) Describe the process that Sagan discusses which would be necessary to terraform Mars.

Essay Topic 3

Terraforming is the process of modifying and entire planet to make it more hospitable for human life.

1) Describe the processes of terraforming that Sagan outlines for Mars and the moon Titan.

2) Discuss the moral aspects of the effort of terraforming, and summarize Sagan's views on the issue.

3) Describe, according to information and arguments from the book, some of the benefits that the human species as a whole would reap through the wholesale terraforming of another planet.

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