An expert believes it's not that hard: http://news.ycombinator.com/item?id=713585 http://news.ycombinator.com/item?id=713585 It's interesting to read both arti

An expert believes it's not that hard: http://news.ycombinator.com/item?id=713585 http://news.ycombinator.com/item?id=713585 It's interesting to read both articles because of the contrasting perceptions of the challenges a manned mission to Mars would pose.