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 type of government is Sagan most opposed to?

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

3. Sagan worries about how societies of what type would handle the technology that could stop Earth-bound asteroids?

4. Where does Sagan think it is most likely that life will be found on Mars?

5. Sagan estimates that intelligent life might arise on average in one out of how many stars?

Short Essay Questions

1. What does Sagan want to see on Mars?

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

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

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

5. How is Venus similar to Earth?

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

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

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

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

10. How is Venus different from Earth?

Essay Topics

Write an essay for ONE of the following topics:

Essay Topic 1

The program SETI is the Search for Extraterrestrial Intelligence. Sagan endorses this program whole-heartedly despite its failure to date and many complaints about its cost.

1) Explain the SETI program and its goals, and how it goes about its search for intelligence.

2) Discuss some of the criticisms about the SETI program.

3) Explain why Sagan maintains his support for the program, despite its failure to date.

Essay Topic 2

In Chapter 1, Sagan discusses in detail the photo of the "pale blue dot" for which he named this book. He regards it as a singular and impressive symbol of man's place in the universe.

1) Describe how the photo of the "pale blue dot" was taken, the risks involved, and how Sagan was personally involved in its creation.

2) Describe the photo itself, using details from the book.

3) Explain how Sagan thinks that this photo demonstrates part of the triumph of the Voyager spacecraft.

4) Discuss in detail the meaning of this photo to Sagan and what it says to him about man's place in the universe.

Essay Topic 3

At the time this book was written, about 200 large asteroids were known to have orbits that would take them close to Earth. Asteroids have caused major catastrophes in the past and could be a threat in the future.

1) Describe how Earth-bound asteroids are identified and tracked.

2) Discuss the danger that asteroids pose to the Earth and some of the catastrophes that major impacts have brought about in the past.

3) Explain some of the methods that Sagan discusses in the book for dealing with Earth-bound asteroids.

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