I understand Curiosity is powered by plutonium decay. I was wondering if that kind of battery leaks.
If humans ever go to Mars, and they want to meet with Curiosity, would they need to take extra precautions?
(I understand that present-day settlers would need protection from cosmic and solar radiation anyway, due to the thin atmosphere on Mars. So for the purposes of this question please assume that we have spent 2,000 years or so terraforming Mars to give it an Earth-like atmosphere. Alternatively, imagine Curiosity finds a way to return to Earth. I'm just wondering if Curiosity's plutonium battery leaks a significant amount of radiation or not.)