NASA Scientist Reviews “The Martian”

It is always interesting with sci fi movies to see how accurate they are. Some are way out of the this world, at least in this day and time, while others might be right on the money! Of course you wouldn't know this unless you are really big into science or work in a field related to the movie.

So could we colonize Mars? I don't think we could ship everyone and their dog into space, but is the movie close to being real life?