Democracy
The colonization of Mars may go along with advancements in social structures and leadership. Representative democracy is likly to be the most wanted kind of government.
With Elections
Just like on Earth the government of a marsian society can be elected by the colonists.
Without Elections
Representative democracy can work without elections, as well. Modelled on the ancient athenian democracy the marsian people can chose to selection the government members by lottery, which can be regarded as a more democratic principle.
