Pale Blue Dot: A Vision of the Human Future in Space Test | Mid-Book Test - Medium

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This test consists of 5 multiple choice questions, 5 short answer questions, and 10 short essay questions.

Multiple Choice Questions

1. What abstract concept does Sagan specifically say he is optimistic about?
(a) The human prospect.
(b) The human capacity for love and discovery.
(c) Human destiny.
(d) The future.

2. What planet did Sagan spend a great deal of time studying when an important space probe passed near it in 1976?
(a) Mars.
(b) Saturn.
(c) Venus.
(d) Mercury.

3. Which of the following is NOT one of the ways that Sagan says life seems to be?
(a) Insignificant.
(b) Absurd.
(c) Meaningless.
(d) Intentional.

4. How old does Sagan state that "fundamentalist monotheists" believe the Earth to be?
(a) 1 million years old.
(b) 10,000 years old.
(c) 300,000 years old.
(d) 6,000 years old.

5. Sagan describes humans as which of the following, with respect to their arrival in the universe?
(a) Early adopters.
(b) Slow movers.
(c) Extreme latecomers.
(d) Middling achievers.

Short Answer Questions

1. At the time of the writing of this book, what is the farthest planet that humans had reached through the use of exploratory probes?

2. Which planet was Voyager 2 intended to visit first?

3. What fault does Sagan admit that science has?

4. Sagan suggests that the image of the "pale blue dot" teaches the need for what?

5. What visual resolution would be required to determine the existence of intelligent life on Earth?

Short Essay Questions

1. Why is it difficult to detect intelligent life on Earth?

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

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

4. What advantage make it more likely that the Voyager records will eventually be found?

5. Describe the planet Neptune.

6. What are the distinguishing characteristics of the planet Uranus?

7. Briefly describe the progress made to undermine the geocentric theory.

8. What seemingly important features of humanity does Sagan deny to be distinguishing?

9. What planets had been explored by human beings, at the time of the writing of this book?

10. How has the attitude of the Catholic church towards Galileo changed over time?

(see the answer keys)

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