I am reminded of the robot "scrubbers" that were sent into the reactor at the 3 mile island facility. (during which, the value of an epoxy paint was demonstrated.)
Look at the Rover program which provided us with data way above expectation. Examples of instruments Please Register or Log in to view the hidden image!Opportunity's first self-portrait including the camera mast on Mars (February 14−20, 2018 / sols 4998−5004) It was taken with its microscopic imager instrument https://en.wikipedia.org/wiki/Mars_rover