Martians
Colonizing Mars was an international effort before the Space Federation as we know it existed. It started as an experiment and a science colony. It evolved as a disciplined citizen center, with skillful colonists selected from many, all working toward a global effort to colonize more planets and adapt mankind to this new challenge.
Mars colonists enjoy a bonus to Science and Discipline. However, Mars has a long past and tried several times to become independent, meaning some grudges remain against Federation. As a result, Mars has a lack of Federal Values in its culture.