Start Getting Noticed

Mercury

Composition
Very little is known about Mercury; ground-based telescopes reveal only an illuminated crescent with limited detail. Mercury is similar in appearance to the Moon: it is heavily cratered with regions of smooth plains, has no natural satellites and no substantial atmosphere. However, unlike the moon, it has a large iron core. It is an exceptionally dense planet due to the large relative size of its core.

Size
Diameter: 3,032 miles

Rotation
Period of Time: 58.6 Days

Distance from Sun
Minimum: 28.6 million miles
Maximum: 43.4 million miles

Bonus Video

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