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 type of waves could be analyzed to demonstrate that there is intelligent life on Earth?
(a) Microwaves.
(b) Ultraviolet waves.
(c) Cosmic waves.
(d) Radio waves.

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

3. The records on the Voyager craft are most like what type of information storage method?
(a) A telegraph code.
(b) A phonograph.
(c) Braille.
(d) Magnetic data storage.

4. Where does Neptune fall in the mission plan for the Voyager probes?
(a) They will pass by it only at an immense distance
(b) They will return to the inner solar system after passing it.
(c) They will go into decaying orbit around it.
(d) It is their final planetary destination.

5. Titan has what distinction among the moons of the planet it orbits?
(a) It is the only spherical moon.
(b) It is the largest moon.
(c) It is the only moon with ice water.
(d) It has the widest orbit.

Short Answer Questions

1. What major change have humans made to the environment that would be easily detectable from space?

2. Kuiper discovered that Titan has what chemical vital to the development of life?

3. In what way is Titan's cold atmosphere an advantage for the formation of life?

4. The Voyager probes found large amounts of what element on Titan?

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

Short Essay Questions

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

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

3. What does the Strong Anthropomorphic principle suggest?

4. What problems does NASA face in pursuing its missions?

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

6. What does Sagan think about the failure of the Voyager probes to find life in the solar system?

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

8. What message do the Voyager craft carry with them from Earth?

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

10. How was Sagan involved in discoveries about Titan?

(see the answer keys)

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