I think the real answer is that there should be some balance of manned vs. robotic missions. Where that balance lies is a matter for debate. Having worked on a

I think the real answer is that there should be some balance of manned vs. robotic missions. Where that balance lies is a matter for debate. Having worked on a robotic mission I am very much in favor of doing more of that. As for me knowing about this... I have more perspective than most people, but it all comes from listening to scientists, who are the ones with knowledge of the science gains. I wish they had a bit more voice than they do.