While a humanoid R2 unit is cool, way back around 2001 NASA had students come up with ideas for ‘micro robots’ for the ISS. Many designs were sketched… but one stood out… one I had hoped they would use some day.
Now, looks like between 2004 and 2006 they actually took some ‘spheres’ up to the ISS to see how early models would work…
Sure wish they had taken it all the way…. sort of ‘in conjunction with’ the R2 units. Would have been very cool.