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The top documents tagged [solar system atmosphere]
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solar system atmosphere
Touring Our Solar System Chapter 23 23.1 The Solar System 99.85% of the mass of our solar system is in the Sun, planets make up the rest. Gravity holds.
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Mr. Smith. Made of mainly gases. Much larger than any planet in the solar system. Creates the gravity needed to hold planets in orbit. The sun.
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Our 8 Planets
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