Life in the Universe (4th Edition)
4th Edition
ISBN: 9780134089089
Author: Jeffrey O. Bennett, Seth Shostak
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 7, Problem 34TYU
The Cassini spacecraft (a) flew past Pluto; (b) landed on Mars; (c) is orbiting Saturn.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Which of these is an example of an energy source that could exist on Europa (or beneath its surface) and help enable life in a Europan ocean?
a Volcanoes and/or hydrothermal vents on the seafloor
b Solar flares from the Sun that penetrate Europa's ice and send radiation into the liquid-water ocean
c Europa's rapid motion as it orbits Jupiter
d The combustion of fossils fuels beneath the surface, similar to burning coal in the Earth's crust
There is strong evidence that Europa, a satellite of Jupiter, has a liquid ocean beneath its icy surface. Many scientists think we should land a vehicle there to search for life. Before launching it, we would want to test such a lander under the gravity conditions at the surface of Europa. One way to do this is to put the lander at the end of a rotating arm in an orbiting earth satellite.
Mission to Titan: Titan is the largest of Saturn’s moons and the only moon in the Solar System that possesses a dense atmosphere and large liquid bodies (seas or lakes) at its surface. For these and other reasons, many exobiologists think that Titan is the most likely place in the Solar System beside Earth where life might exist. NASA is considering sending a 600 kg space probe into orbit around Titan in order to map its surface. This would be followed a few years later by a 320 kg robotic lander that would land on the surface of Titan in order to look for life. a) What would be the space probe’s velocity and orbital period if the probe were to orbit at an altitude of 70 km above the surface of Titan? b) What force would the lander’s thrusters need to produce in order to allow the lander to hover just above the surface of Titan.
Chapter 7 Solutions
Life in the Universe (4th Edition)
Ch. 7 - Why do we expect the elements of life to be widely...Ch. 7 - How does the strength of sunlight vary with...Ch. 7 - Under what conditions does it seem reasonable to...Ch. 7 - Why is a liquid medium important for life? Why...Ch. 7 - Summarize the three major environmental...Ch. 7 - Why do the Moon and Mercury seem unlikely to be...Ch. 7 - Why is Venus so much hotter than Earth? How does...Ch. 7 - Why does Mars seem such a good candidate for life?Ch. 7 - Briefly discuss the possibility of life on Jupiter...Ch. 7 - With regard to habitability, how do the cases of...
Ch. 7 - What characteristics make some of the large moons...Ch. 7 - Briefly describe the prospects for habitability of...Ch. 7 - Describe and distinguish between space missions...Ch. 7 - For a few of the most important past, present, or...Ch. 7 - On the smallest moon of Uranus, my team discovered...Ch. 7 - New spacecraft images show lakes of liquid water...Ch. 7 - We are pumping water for our new Moon colony from...Ch. 7 - I was part of the first group of people to land on...Ch. 7 - We sent a robotic airplane into the atmosphere of...Ch. 7 - On a moon of Neptune, we discovered photosynthetic...Ch. 7 - We deposited bacteria (from Earth) that get energy...Ch. 7 - The drilled sample showed no signs of life on...Ch. 7 - We cut holes in the frozen surface of a methane...Ch. 7 - The drilled sample from Mars brought up rock that...Ch. 7 - Oxygen and carbon are (a) rarer than almost all...Ch. 7 - On an asteroid that is twice as far as Earth from...Ch. 7 - Compared to liquid water, liquid methane is (a)...Ch. 7 - Frozen lakes often have liquid water beneath their...Ch. 7 - Temperatures on Mercury are (a) always very hot;...Ch. 7 - On Venus, liquid water (a) does not exist...Ch. 7 - The reason Venus is so much hotter than Earth is...Ch. 7 - Life is probably not possible in Jupiters...Ch. 7 - Which of the following are you most likely to find...Ch. 7 - The Cassini spacecraft (a) flew past Pluto; (b)...Ch. 7 - Bizarre Forms of Life. Discuss some forms of life...Ch. 7 - Making a Living. Consider various methods by which...Ch. 7 - Solar System Tour. Based on the brief tour in this...Ch. 7 - Galileo Spacecraft. In 2003, scientists...Ch. 7 - Greenhouse Effect. The text (in Chapter 4) makes...Ch. 7 - Prob. 41IFCh. 7 - Understanding Newtons Version of Keplers Third Law...Ch. 7 - Understanding Newtons Version of Keplers Third Law...Ch. 7 - Earth Mass. The Moon orbits Earth in an average...Ch. 7 - Jupiter Mass. Jupiters moon Io orbits Jupiter...Ch. 7 - Pluto/Charon Mass. Plutos moon Charon orbits Pluto...Ch. 7 - Mission to Pluto. The New Horizons spacecraft took...Ch. 7 - Planetary Missions. Visit the web page for one of...
Additional Science Textbook Solutions
Find more solutions based on key concepts
8. Estimate the change in gravitational potential energy when you rise from bed to a standing position.
a. No c...
College Physics
Answer Problems 3 through 5 by choosing one of the eight labeled acceleration vectors or selecting option I: = ...
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
Two skaters toss a basketball back and forth on frictionless ice. Which of the following does not change? (a) t...
Essential University Physics: Volume 1 (3rd Edition)
Normal forces are applied uniformly over the surface of a spherical volume of water whose radius is 20.0cm . If...
University Physics Volume 1
1. When is energy most evident?
Conceptual Physics (12th Edition)
How does the net work done on cart A(Wnet,A) compare to the net work done on cart B(Wnet,B) ? Explain. Is the k...
Tutorials in Introductory Physics
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- Imagine a trans-Neptunian object with roughly the same mass as Earth but located 50 AU from the sun. a) based on the solar nebula theory, what do you think this object would be made of and why? b) on the basis of speculation, assume a reasonable density for this object and calculate its diameter in units of Earth radii.arrow_forwardOn February 7, 1999, NASA launched a spacecraft with the ambitious mission of making a close encounter with a comet, collecting samples from its tail, and returning the samples to Earth for analysis. This spacecraft, appropriately named Stardust, took almost five years to rendezvous with its objective-comet Wild 2 (pronounced "Vilt 2")-and another two years to return its samples. The reason for the long round trip is that the spacecraft had to make three orbits around the Sun, and also an Earth Gravity Assist (EGA) flyby, to increase its speed enough to put it in an orbit appropriate for the encounter.When Stardust finally reached comet Wild 2 on January 2, 2004, it flew within 147 miles of the comet's nucleus, snapping pictures and collecting tiny specks of dust in the glistening coma. The approach speed between the spacecraft and the comet at the encounter was a relatively "slow" 6200 m/s, so that dust particles could be collected safely without destroying the vehicle. Note that…arrow_forwardWhy is Pluto not considered a major planet, and what other peculiarity distinguishes it from the major planets?arrow_forward
- What is the difference between a planetesimal and a protoplanet?arrow_forwardLook at Figure 21-11. Which molecule(s) can escape from Earths gravity? From Mars? From Venus? Figure 21-11 Loss of atmospheric gases. Dots represent the escape velocity and temperature of various Solar System bodies. The lines represent the typical highest velocities of molecules of various masses. The Jovian planets have high escape velocities and can hold onto even the lowest-mass molecules. Mars can hold only the more massive molecules, and the Moon has such a low escape velocity that even massive molecules can escape.arrow_forwardPresent theory suggests that giant planets cannot form without condensation of water ice, which becomes vapor at the high temperatures close to a star. So how can we explain the presence of jovian-sized exoplanets closer to their star than Mercury is to our Sun?arrow_forward
- Describe the solar nebula, and outline the sequence of events within the nebula that gave rise to the planetesimals.arrow_forwardNASA Scientists want to measure the current distance between two of Jupiter's Moons, Ganymede and Europa. They set up a laser on the surface of Ganymede, shine it at a mirror on the surface of Europa and measure how long it takes for the laser light to return to a detector on the surface of Ganymede. They calculated the current distance between the two moons to be 787 million meters. How long did it take the light to make it to Europa and back? *Give answers to at least three significant figures. DO NOT submit answers in scientific notation. Use symbols for units (i.e. m, s, kg, N)*arrow_forward(a) What is the difference between the forces due to Neptune on a 1.0 kg mass located at the near side of Triton and at the far side of Triton? Triton has a mean radius of 1,353 km and a mean orbital radius about Neptune of 354,800 km. (Enter the magnitude in newtons.) N (b) Compare this difference to the difference for Earth due to the Moon, 0.22 x 10- N. (Tidal forces are the cause of volcanic activity on some moons.) AFTriton due to Neptune AF Earth due to Moonarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Foundations of Astronomy (MindTap Course List)PhysicsISBN:9781337399920Author:Michael A. Seeds, Dana BackmanPublisher:Cengage Learning
AstronomyPhysicsISBN:9781938168284Author:Andrew Fraknoi; David Morrison; Sidney C. WolffPublisher:OpenStax
An Introduction to Physical SciencePhysicsISBN:9781305079137Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar TorresPublisher:Cengage Learning
Foundations of Astronomy (MindTap Course List)
Physics
ISBN:9781337399920
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
Astronomy
Physics
ISBN:9781938168284
Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher:OpenStax
An Introduction to Physical Science
Physics
ISBN:9781305079137
Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher:Cengage Learning
Kepler's Three Laws Explained; Author: PhysicsHigh;https://www.youtube.com/watch?v=kyR6EO_RMKE;License: Standard YouTube License, CC-BY