text: My next point is that the author also states that we have already had missions there. If Earth poured money into going there at all, more than once, we must have seen some value in the mission because of its potential data and learning opportunities. The crafts may have only lated for days, but we still were able to learn. If we we not going to gain anything from the missons, we would not have wasted time and money to get there, multiple times.