PHY 580 - ASTROBIOLOGY FOR TEACHERS


ADDITIONAL QUESTIONS FROM THE READING


Chapter #12 Titan - A Natural Exobiology Laboratory.

 

1. What planet does Titan orbit? (page 192)

2. Whys is Titan technically not a planet even though it nearly as large as Mercury? (page 192)

3. What important biogenic molecule compose much of Titan's atmosphere? (page 192)

4. How does the surface atmospheric pressure of Titan compare to that of Earth? (page 192)

5. Does the atmosphere of Titan suggest that greenhouse warming would or would not be a possibility? (193)

6. For a planet located approximately 9.5 AU from the sum we would expect that the surface temperature would be somewhere around 100K. Why is it then that there is the possibility that surface temperature of Titan could be high enough to allow for liquid water? (page 193)

7. How does the average density of Titan compare to that of the Earth? (page 193 &endash; 194)

8. What is the physical significance of Titans relatively small (as compared to other terrestrial planets) average density? (page 194)

9. Provide a written description detailing the information provided in Figure 12.2. (page 196)

10. What is the measured surface temperature of Titan? (page 196)

11. Describe why finding Methane in the atmosphere of Titan suggests that methane is likely to be present on the surface. In what state is the surface methane likely to be found? (page 297)

12. What liquids other than methane is thought to dominate the surface of Titan? How is this liquid formed on Titan? (page 198 &endash; 199, 201)

13. What is the mechanism proposed by Jakosky to supply the necessary heat to have liquid water on the surface of Titan? (page 203)


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