>Joking aside, I think small nuclear power sources tend to use much, much more problematic stuff than enriched uranium.

The rover ones use Pu-238.

> You know, the Mars rover‘s pictures are censored in some areas… that’s where the radioisotope batteries are located.

The Curiosity and Perserverance rovers each have one MMRTG (multimission radiothermal generator), and I've never seen a picture of the rover where it is censored, and its actually explicitly called out and shown and drawn attention to in lots of NASA publicity stuff.

https://share.google/cqF7eqAJtLH52ALtN

https://mars.nasa.gov/internal_resources/788/

Looks like I misremembered or confused the censoring stuff. Thanks for the correction.