Visiting other planets is key to advancing not only our scientific knowledge but also our entire civilization.
Given the economic difficulties, should the US government make such a substantial investment necessary to send a man to Mars? It is obviously a greater challenge than the moon was.
Even if we were enjoying good economic times, why should we even bother spending billions on space travel when we could lower taxes and the leave the cosmos for science fiction writers? Some people feel this way.
Any ideas?
Edward