Are manned missions necessary and feasible to other planets and exo-planets?

Are manned missions necessary and feasible to other planets and exo-planets?
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1 Answer

Answer :

I asked a similar question specifically about the planned mission to Mars. The Mars rovers were spectacularly successful, exceeding all expectations. I don’t see why we can’t do more of the same. A manned trip to Mars presents some interesting problems. There was no shower facility on the Moon flights. That won’t work for the duration of a Mars flight. How is that going to be taken care of? Also, what to do with body excretions becomes kind of tricky. Robots do not have any of these difficulties, nor do they need to be fed, require oxygen or comfortable temperatures. It makes so much more sense to use them instead of humans.
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