MERCURY
Mercury's surface is similar in appearance to that of the Moon, showing extensive mare-like plains and heavy cratering, indicating that it has been geologically inactive for billions of years. It is more heterogeneous than either Mars's or the Moon’s.
Source: Wikipedia
ROTATION TIME
58.6 DAYS
REVOLUTION TIME
87.97 DAYS
RADIUS
2,439.7 KM
AVERAGE TEMP.