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Iron planet facts for kids

Kids Encyclopedia Facts

An iron planet is a planet whose core consists of mostly iron. These planets often have a small mantle and a very large core. Mercury is known to be an iron-rich planet - and is the largest celestial body in the Solar System to be so.

In science fiction, these planets are sometimes called "cannonballs".

See also

Kids robot.svg In Spanish: Planeta de hierro para niños

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Iron planet Facts for Kids. Kiddle Encyclopedia.