I'm trying to put together a piece of work that could take a long time to complete. It's a fictional history book that's about Mankind's exploration into space that starts in 2013 AD to 2700 AD. There is this one segment I am trying to work on that involves a lot of political conflict on the colonies of Mars. Instead of focusing too much on the battles and the independence of these new Martian nations, I am seeing if I can pull off a plausible version of creating a new human racial group, simply known as the Martians. I had this mental image that human colonists living on Mars for 2 centuries slowly adapted and formed a new race. They have the red skin tone, equivalent to the martian surface and have black hair. If you really can't get the idea, it so happens the movie John Carter, based on the book Princess of Barsoom had a race of humans that looked different than humans on Earth. Honestly not what I had in mind, but expect my vision of a human martian to look like this, but the skin tone is more red. So, the reason why I wanted to make this fictional race is to explore racism. Tensions grow between the independent Martian States and the authoritarian Terrans on the red planet. The Terrans had an ideology that the "Terran Race" is the master race of the galaxy against all other alien life, but for some reason, they saw the Martians, whom are technically human as an abomination. This is because of the violent segregation of the Martians in the first place, and their racial culture has been blamed for it. What I need help on is if I'm missing something. How can I develop this further? What else should I explore in this subject for my story.