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Which planet is the densest in the Solar System?
SpacePlanets
Quick Answer
Earth is the densest planet in the Solar System, with an average density of about 5.51 g/cm³.
The Full Story
Earth has the highest average density of any planet in the Solar System. Its density is about 5.51 grams per cubic centimeter, higher than Mercury’s roughly 5.43 g/cm³ despite Mercury being much smaller. The difference comes from Earth’s large iron-rich core and the way dense materials are concentrated inside rocky planets. This makes Earth a standout among the terrestrial planets.
Key Facts
1.Earth’s average density is about 5.51 g/cm³
2.Mercury’s average density is about 5.43 g/cm³
3.Earth’s density reflects its iron-rich core and rocky composition
YouTube Angle
Suggested video title for this topic:
"The densest planet is not the one you might expect."