Some of the possibilities NASA has for Mars are, as the article says, “plans for radiation shielding, centrifugal artificial gravity, in-transit consumable resupply, and a return-lander.”
(Williams) This quote explains a few possibilities of how NASA could colonize Mars. Any of these possibilities could potentially work in the future. An advantage humans have with Mars colonization is that the days are similar. “A Martian day is 24 hours and 39 minutes, which means that plants and animals – not to mention human colonists – would find that familiar.” (Williams) This would help NASA because calculations would be easier and relative time checks would not be chores. Also, people could possibly grow Earth plants on Mars, according to this article.