a) How did scientists use Titan to guide Cassini on a tour of Saturn's moon system? b) What evidence supports the idea that a relatively recent catastrophic event was responsible for Saturn’s rings?

a) How did scientists use Titan to guide Cassini on a tour of Saturn's moon system? b) What evidence supports the idea that a relatively recent catastrophic event was responsible for Saturn’s rings?

Astronomy

1st Edition

ISBN:9781938168284

Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff

Publisher:Andrew Fraknoi; David Morrison; Sidney C. Wolff

Chapter12: Rings, Moons, And Pluto

Section: Chapter Questions

Problem 12E: Saturn’s E ring is broad and thin, and far from Saturn. It requires fresh particles to sustain...

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a) How did scientists use Titan to guide Cassini on a tour of Saturn's moon system?

b) What evidence supports the idea that a relatively recent catastrophic event was
responsible for Saturn’s rings?

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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.
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