If you mean the one in Boston: Mars and Venus, of course, five cupids playing with Mars's armour and to the right a river god and goddess. To the left probably a wood nymph (dryad).
There are many reasons why they did it. Mythologywise, in the war of Troy, there were gods who were besides the troyans (Aphrodite, Artemis, Mars...) and who were against them (Hera, Athene, Poseidon...). Since Aeneas was troyan, and his descendants were the Romans, Roman people considered the 'antagonist' gods bad, but they respected them too. In another aspect, there were some cultures what romans involved in their culture. Those mythologies had their gods too, and their characteristic influenced the Roman mythology.
no
A most notable statue of Hadrian in Rome is missing clothing; a marble statue depicting Hadrian as the god Mars. Most other representations of Hadrian show him dressed as a soldier or draped in the clothing of a noble Roman. The statue of Hadrian at the British Museum is missing the tip of his nose; a statue of Hadrian destroying the enemy in Greece is missing his left arm and another in Greece missing his head and arms.
The possessive form of Mars is Mars'
There are no people on Mars, and no astronauts have visited Mars. The Moon, yes, Mars, no.
Tina Marjorino, she may look familiar to you because she's in the movie Napoleon Dynamite :) Just to add to this answer, you may also have seen her in Alice in Wonderland, Veronica Mars and/or HBO's Big Love xD
Mars.
*mars odyssey *mars global surveyor *mars pathfinder
Mars vs. Mars was created on 2005-02-15.
They are not quite on Mars. They are moons of Mars.
The planet Mars was named by the ancient Romans after their god of war, Mars.
The Mars Candy Company was founded by Frank Mars.
a description of mars is 60% of mars is rocky and 40% of mars is a flat surface