In this article, we’ll take a look at the Characteristics that make Mercury such a Unique planet in the Solar system. But first, here are some quick facts about it. As you might already know, it is the closest planet to the Sun, but how close is it really? Average distance to the Sun57,909,227 km (35,983,125 miles)Length of year88 daysPlanet typeTerrestrialPosition in the Solar system1stRadius2...

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