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 and 1 (of 3) essay topics.

Short Answer Questions

1. Sagan suggests that humans could live and thrive around what unusual type of star?

2. What does Sagan believe about weapons of mass destruction?

3. How old are the terrain features generated by Venus' volcanoes?

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

5. When does Sagan predict that anti-matter will be mass-manufactured?

Essay Topics

Essay Topic 1

Titan is the largest moon of Saturn and the most Earth-like of all of the moons in the solar system, making it a good candidate for finding extraterrestrial life.

1) Describe the characteristics of the moon Titan, including a discussion of its atmosphere and hydrocarbon lakes.

2) Assess the specific characteristics of the moon that make it suitable for life.

3) Discuss Sagan's personal involvement in the study of Titan, its importance to him, and why he believes the moon warrants further study.

Essay Topic 2

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.

Essay Topic 3

Each of the Voyager craft were fitted with golden phonograph records containing carefully selected information to be sent along with the probes into deep space.

1) Discuss the purpose of the Voyager records.

2) Explain the design of the Voyager records, why they are expected to endure without losing data, and how an alien intelligence would be expected to decode them.

3) Discuss the information contained on the records and why it was selected.

(see the answer keys)

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