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Which planet is densest?
Quick Answer
Earth is the densest planet in the Solar System, with an average density of about 5.51 grams per cubic centimeter. Its iron-rich core helps make it unusually dense.
The Full Story
Among the eight planets, Earth has the highest average density. Its density is about 5.51 g/cm³, slightly higher than Mercury's. The reason is that Earth contains a large metallic core, especially iron and nickel, packed into a relatively compact rocky body. This density difference helps distinguish Earth from the gas and ice giants.
Key Facts
1.Earth's average density is about 5.51 g/cm³
2.Earth is denser than Mercury
3.Its iron-rich core increases overall density
YouTube Angle
Suggested video title for this topic:
"Our home planet is the densest world in the Solar System."
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