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17: The Solar System

Last updated

Apr 1, 2025
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- 16.4: Nuclear Fusion
- 17.1: Introduction to the Solar System

Lumen Learning
Lumen Learning

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17.1: Introduction to the Solar System
This page outlines the historical progression of our understanding of the solar system, starting with the geocentric model of the ancient Greeks, transitioning to the heliocentric model by Copernicus, and refined by Kepler and Galileo. It describes the solar system's structure, which includes eight planets, dwarf planets, and numerous moons and asteroids, with the Sun being the largest mass. The formation of the solar system is explained by the nebular hypothesis.
17.2: Inner Planets
This page explores the inner planets—Mercury, Venus, Earth, and Mars—focusing on their geology, atmospheres, and distinctive features. It highlights Earth's unique qualities, compares Venus's extreme conditions and young surface to Mars's geological features and evidence of past water, and discusses ongoing exploration.
17.3: Outer Planets
This page discusses the outer planets: Jupiter, Saturn, Uranus, and Neptune, characterized as gas giants made up of hydrogen and helium. Jupiter is known for its Great Red Spot and has 63 moons, including Europa, a potential site for extraterrestrial life. Saturn has striking rings and Titan, which may harbor primitive life due to its methane lakes. Uranus is distinguished by its tilt and Shakespearean moons, while Neptune is recognized for its turbulent atmosphere.
17.4: Other Objects in the Solar System
This page explores celestial objects such as asteroids, comets, meteors, and meteorites, detailing their origins and characteristics. It highlights the asteroid belt's position, the formation of comets in the Kuiper belt and Oort cloud, and the classification of Pluto and other dwarf planets by the International Astronomical Union. The page underscores the significance of ongoing research in our solar system, examining the potential hazards and opportunities linked to these cosmic remnants.

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