- The solar system is made up of the sun, eight planets, and numerous smaller bodies such as asteroids and comets.
- The four inner planets (Mercury, Venus, Earth, and Mars) are called the terrestrial planets because they are primarily composed of rock and metal.
- The four outer planets (Jupiter, Saturn, Uranus, and Neptune) are called the gas giants because they are primarily composed of gas and ice.
- The largest planet in the solar system is Jupiter, which is also the fifth planet from the sun.
- The smallest planet in the solar system is Mercury, which is also the closest planet to the sun.
- The solar system is located in the Milky Way galaxy, in a spiral arm called the Orion Arm.
- The solar system is estimated to be around 4.6 billion years old.
- The sun is a main-sequence star and is expected to remain in this phase for another 5 billion years.
- Saturn's rings are made up of billions of ice particles and rock debris of various sizes.
- There are more than 200 known moons in the solar system, with many more yet to be discovered.
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