There is one benefit to human spaceflight over robotic spaceflight: the human body is a much more adapted tool to unknown situations than robots are. A human hand is a better manipulator than any robotic tool (look up videos of robots trying to turn a doorknob and open a door, e.g.), and our locomotion tends to be well-adapted to adverse terrain.
But it is far from clear that such versatility is worth all of the costs of human spaceflight, principally the fact that humans are fragile bags of water that require fine-tuned environmental conditions to operate (and such conditions are difficult to provide in space).
> : the human body is a much more adapted tool to unknown situations than robots are.
Here on Earth, that is true.
Everywhere else however, our body is confined to a bulky, heavy, unwieldy space suit, and has exactly as much range of movement as the air supply allows.
And the thing is: We can make better robots. There is clear progress in terms of their capabilities. Not so long ago, [this][1] would only have been possible as CGI, today, it is technical reality.
This rapid path to improvement, simply doesn't exist for biological systems.
But it is far from clear that such versatility is worth all of the costs of human spaceflight, principally the fact that humans are fragile bags of water that require fine-tuned environmental conditions to operate (and such conditions are difficult to provide in space).