How to start living on Mars

SPACE EXPLORATION - The NASA Rover Curiosity has landed on Mars and has started explorations. As we see the first Curiosity images of the Red Planet, our dreams of visiting and living on Mars are revived. 

living on Mars

Manned missions to Mars have been written out for many years, in scenarios ranging from scientifically based to pure sci-fi and fantasy. All scenarios deal with the matter of creating the basic necessities for human life on Mars, such as a supply of food, water and breathable air.
Mars is considered to be a good candidate for human settlement because it has a (thin) atmosphere and frozen water masses (enough to cover the whole planet surface if it were to melt all at once).  Once on Mars, returning to Earth is relatively difficult, because it needs a lot of fuel. Supplying the Mars settlers from Earth could also become too expensive and problematic in the long run. 

We can use our knowledge and imagination to decide how to start living on Mars, but maybe we have the example right under our noses. How about interpreting ancient texts and archeological finds according to the ancient alien theory? If we do this, we could propose that the present conditions for life on Earth were created by ancient aliens a long time ago.

Did a meteorite exterminate the dinosaurs by chance? Or were advanced alien civilizations capable of manipulating the course of asteroids? They could have created the hit on purpose, in order to change the Earth’s geology and climate. Could this be an idea to manipulate Mars’ water resources?

Ancient alien theory also suggests that advanced aliens, perceived as ‘gods’ by man, used genetic engineering or DNA manipulation to create new life forms, including humans. This idea is based largely on the remains of ancient Sumerian culture. In a simpler form, could we spray the surface of Mars with good bacteria or building blocks for life? Could we grow specific Mars varieties of corn?