About Mercury
Rotation Time
58.6 days
Revolution Time
88 days
Radius
2,439.7 km
Average Temperature
167 °C
Overview
Mercury is the smallest and closest planet to the Sun. It is a rocky planet with a cratered surface.
Internal Structure
Mercury has a solid, iron-rich core and a thin rocky mantle.
Surface Geology
Mercury's surface is heavily cratered and has extensive plains and cliffs.
References
Information sourced from Wikipedia.