@miriam98 - Space exploration robots provide a wide variety of useful functions, whether they are operating solo or to assist other manned missions.
Personally I don’t think that we need to get to “sentient” robots anytime soon. The advantage robots have is that they don’t need oxygen and they don’t need water.
I would rather see more robotic missions to planets in our solar system rather than worrying about a manned mission to Mars or something like that. I simply don’t see the benefit of sending humans out into the far reaches of space, except perhaps maybe for the thrill that it produces. But that’s not enough of a reason in my opinion. Robots are safer and more efficient.