Mercury is the closest planet to the Sun and the smallest one in the entire Solar System.
This planet’s name has nothing to do with the liquid metal, since Mercury was named
after the Roman messenger god. Despite being closer to the Sun than Venus, its
temperatures aren’t as terribly hot as that planet’s. Its surface is quite similar to that of
Earth’s Moon, which means there are a lot of craters and plains
Speaking of craters, many of them were named after artists or authors who made
significant contributions to their respective fields. Mercury takes a little more than 58
days to complete its rotation, so try to imagine how long days must be there! Since the
temperatures are so extreme, albeit not as extreme as in Venus, and the solar radiation
is so high, Mercury has been deemed to be non-habitable for humans