Pale Blue Dot: A Vision of the Human Future in Space Test | Mid-Book 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. Many of organic molecules arrived on Earth from what source?

2. Sagan suggest that modern religious thinking treats scientific evidence in what way?

3. How likely does Sagan think it is that the records on Voyager will eventually be found?

4. How does Sagan describe his reaction to the difficulties in detecting human life and intelligence on Earth from space?

5. What does Sagan claim is the key element of humanity's future?

Short Essay Questions

1. Why did ancient people believe there could not be any other planets beyond the ones they knew about?

2. What are the "great demotions" that Sagan refers to?

3. Why does Saga say he is optimistic about the "human prospect"?

4. What questions does Sagan say he intends to address in this book?

5. What types of strategies are most practical for stopping an Earth-bound asteroid?

6. Why does Sagan believe that America sent men to the moon?

7. When this book was written, what was known about planets in other solar systems?

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

9. What profit motivations exist in a manned mission to Mars?

10. What aspects of science make it unappealing to some?

Essay Topics

Write an essay for ONE of the following topics:

Essay Topic 1

Venus was once considered to be a "sister planet" to Earth, but is now known to be dramatically different from our own planet.

1) Discuss the characteristics of Venus, including the oddities in its climate, atmosphere, and surface.

2) Explain some of the similarities and differences between Earth and Venus and explain why this planet was once considered a "sister planet" to Earth.

3) Discuss Venus' unique place in the mythologies of ancient cultures around the world, as well as its unique positioning in the night sky as seen from Earth.

Essay Topic 2

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 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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