I just finished this. It was excellent. I really enjoyed it. Much of his science in the book is dead on with things that have been studied. Such as using hydrogen and the atmospheric CO2 to make methane and oxygen for the MAV. Inflateable habitats have also been studied as a weight saving method for space travel.
But beyond the science, this was just an excellent read. Humorous. Reading through the thread it appears Matt Damon gets the role of Whatney. Not sure about that one. I would hope the movie maintains some of the humorous aspects of the book and I don't see Damon playing the humorous role. Not sure who I'd like instead though.
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