[1] - https://ntrs.nasa.gov/api/citations/20205009350/downloads/03...
I'll make an educated guess that, as of this moment, there are zero functioning swarms of humanoid robots recharging on such a reactor on Earth.
Once we add radiation shielding, software and hardware reliability, landing (marsing?) it all safely and deploying it (among others) I wouldn't be surprised if the earliest arrival time is, unsurprisingly, 20 years in the future.
What? The unmanned space program has been beyond the edges of our solar system. Meanwhile humans have been day tourists in space. I don't know how you can come to this conclusion that "humans > robots" when humans have never even been close to the surface of Mars.
>> Even just a tiny temporarily occupied Mars science outpost would be a tremendous boost to our understanding of the planet
How many robots could we land with the equivalent resources, or telescope satellites, or autonomous probes?