The Cosmic Perspective Fundamentals (2nd Edition)
2nd Edition
ISBN: 9780133889567
Author: Jeffrey O. Bennett, Megan O. Donahue, Nicholas Schneider, Mark Voit
Publisher: PEARSON
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Textbook Question
Chapter 5, Problem 21SEQ
Mars Missions. Find the latest results from the Mars Curiosity rover and the MAVEN orbiter. Have any of these results changed or confirmed any of the ideas Mars discussed in this chapter? Explain in a one- or two-page essay.
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Students have asked these similar questions
The principle cause of our intense interest in Mars in the decades before the dawn of the space age was that
Answers:
A.
a few astronomers believed that they saw evidence of an intelligent civilization on Mars.
B.
Mars has seasons just like the Earth and therefore should be inhabitable by humans.
C.
Mars has an unusual surface color and global dust storms, creating strange weather patterns.
D.
Mars has unusual orbital properties making our understanding of its motion around the Sun very difficult.
Activity #1. Compare and Contrast. Similarities and differences of Venus, Earth and Mars.
Do this on a separate sheet of paper.
1. Compare and contrast the three (3) terrestrial planets using table 1.
2. Provide explanations for your observations using table 2.
3. Answer the following guide questions.
Guide questions:
1. Does planet size affect gravity?
2. Why do you think Venus has the highest mean temperature among the three planets?
3. Is presence of water a primary factor for a planet to sustain life? Why or why not?
4. Based on your observations using table 2, what are the notable features that makes the
earth the only habitable planet among the three terrestrial planets?
5. What conclusions can you make?
If we send astronauts to Mars, there will be a time delay anytime we send or receive messages to them here on Earth. Given that Mars is an average of 54.6 million km away from Earth, how long is this time delay for a 2-way 'round-trip' communication - sent to Earth, then back to Mars? (this might be important in emergency situations)
answer choices
a)About 4 minutes.
b)About 30 seconds.
c)About 10 seconds.
d)About 6 minutes.
Chapter 5 Solutions
The Cosmic Perspective Fundamentals (2nd Edition)
Ch. 5 - Prob. 1QQCh. 5 - Choose the best answer to each of the following....Ch. 5 - Choose the best answer to each of the following....Ch. 5 - Choose the best answer to each of the following....Ch. 5 - Choose the best answer to each of the following....Ch. 5 - Prob. 6QQCh. 5 - Choose the best answer to each of the following....Ch. 5 - Choose the best answer to each of the following....Ch. 5 - Choose the best answer to each of the following....Ch. 5 - Choose the best answer to each of the following....
Ch. 5 - Choose the best answer to each of the following....Ch. 5 - Prob. 12QQCh. 5 - Explain all answers clearly, with complete...Ch. 5 - Explain all answers clearly, with complete...Ch. 5 - Explain all answers clearly, with complete...Ch. 5 - Explain all answers clearly, with complete...Ch. 5 - Explain all answers clearly, with complete...Ch. 5 - Explain all answers clearly, with complete...Ch. 5 - Explain all answers clearly, with complete...Ch. 5 - Prob. 20SEQCh. 5 - Mars Missions. Find the latest results from the...Ch. 5 - Explain all answers clearly, with complete...Ch. 5 - Explain all answers clearly, with complete...
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- Describe the current atmosphere on Mars. What evidence suggests that it must have been different in the past?arrow_forwardCO2 and planetary warming: understanding Earth’s complicated atmosphere Mars has an atmospheric pressure of 6 mbar (compared with Earth atmosphere pressure of 1013 mbar), 96% of which is CO2. The average calculated temperature of Mars is -57°C, whereas the actual average temperature is -55°C so that the amount of warming due to CO2 is only 2°C. On the other hand, the average calculated temperature of Earth, with 0.4 mbar of CO2, is -19°C, whereas the actual average temperature is 15°C so that the amount of warming due to CO2 is 34°C, much greater than that on Mars, which has higher CO2 concentration. Explain how this is possible.arrow_forwardSuppose that, decades from now, NASA is considering sending astronauts to Mars and Venus. In each case, describe what kind of protective gear they would have to carry, and what their chances for survival would be if their spacesuits ruptured.arrow_forward
- One source of information about Mars has been the analysis of meteorites from Mars. Since no samples from Mars have ever been returned to Earth from any of the missions we sent there, how do we know these meteorites are from Mars? What information have they revealed about Mars?arrow_forwardWe believe that all of the terrestrial planets had similar histories when it comes to impacts from space. Explain how this idea can be used to date the formation of the martian highlands, the martian basins, and the Tharsis volcanoes. How certain are the ages derived for these features (in other words, how do we check the ages we derive from this method)?arrow_forwardWhat were the canals on Mars eventually found to be? How do they differ from the outflow channels and valley networks on Mars?arrow_forward
- How long would radio signals take to travel from Earth to Venus and back if Venus were at its nearest point to Earth? At its farthest point from Earth? (Notes: The speed of light is 3.00 108 m/s. Necessary data to derive the distances between the objects in those two situations are given in the Celestial Profiles for Earth in Chapter 19 and Venus in this chapter.)arrow_forwardWhat is one of the Mars missions that is currently operating and write about the mission’s history, goals, and accomplishments to date.arrow_forwardFor which of the following reasons (select all that apply), is it useful/important to send rovers to other planetary bodies in our solar system? O a. The engineering innovations developed to produce successful/viable rovers and landers on other planets can help lead to developments in the technology used here on Earth that may have taken far more time to develop without the limitations provided by space travel to foreign worlds. O b. The data collected can help improve our understanding of the evolution/development of our solar system. O. Rovers/landers can be outfitted with various tools and equipment that can be used to inform of us of the geological histories of each of the planets they visit. O d. More direct probes of the planetary surface are possible to detect signs of the building blocks of life. O e. Rock samples can be used to calibrate our estimations of the age of the solar system.arrow_forward
- The gravity on Mars is about 38% that of Earth's gravity. Let's say some cargo has a mass of 15 kg here on Earth. First, what would be the weight of that cargo in kilograms on Mars? Explain your answer. Second, what would be the mass of that cargo in kilograms on Mars? Explain your answer.arrow_forwardThe close encounter hypothesis was rejected because of the following reasons except for this reason. b. It explained the planets were formed by gravitational disruption c. It failed to explain the orbital motions of planets d. It failed to explain why the solar system have 2 types of planets: terrestrial and jovianarrow_forwardPretend you are a NASA executive or a legislator. Design a new mission in our solar system. Pick any object in the system and decide whether you want to send an orbiter, a lander, a rover, some combination or those, a manned mission, or something else. What interests you about this object? What science questions can we answer? In basic terms, what kind of scientific instruments might you want to include on your mission? Justify your decisions with what you know about the scientific method, astronomy techniques, and the object itself from this class.arrow_forward
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