Human eyes are not good. We have a massive central void in our vision that we literally fill in with our imagination. We can't sense light polarity, we can't se

Human eyes are not good. We have a massive central void in our vision that we literally fill in with our imagination. We can't sense light polarity, we can't sense beyond infrared or ultraviolet, and our resolution is poor. I suspect you could put together and deliver to Mars a highly redundant system with all of those capabilities for less than the addition fuel cost to launch a 100kg human, supplies, and life-support systems out of Earth's gravity well.