Inner Planets: Solid, rocky surface, Smaller diameter, Closer to the Sun, Few or no moons, Shorter orbital period, No rings, More dense, Inside the Asteroid Belt, Slightly Elliptical Orbit, Lower Gravity, Mercury, Venus, Earth, Mars, Outer Planets: Gaseous, no solid surface, Larger diameter, Farther from the Sun, Many moons, Longer orbital period, Rings, Less dense, Outside Asteroid Belt, Highly Elliptical Orbit, Higher Gravity, Jupiter, Saturn, Uranus, Neptune,

Inner vs. Outer Planets

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