The smallest planet in our solar system is Mercury. It is the closest planet to the sun and is only a little larger than Earth's moon. Mercury's diameter is about 4,880 km (3,032 miles), which is only about 38% the size of Earth. Despite its small size, Mercury is still a fascinating planet with many unique features, such as a heavily cratered surface, extreme temperatures, and a thin atmosphere.
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Mercury.
Explanation:
The smallest planet in our solar system is Mercury. It is the closest planet to the sun and is only a little larger than Earth's moon. Mercury's diameter is about 4,880 km (3,032 miles), which is only about 38% the size of Earth. Despite its small size, Mercury is still a fascinating planet with many unique features, such as a heavily cratered surface, extreme temperatures, and a thin atmosphere.
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