Here's an episode of Space Policy from Planetary Radio. They go very in depth on the issue of pu-238, the efforts to restart production and why it is so complic

Here's an episode of Space Policy from Planetary Radio. They go very in depth on the issue of pu-238, the efforts to restart production and why it is so complicated. http://www.planetary.org/multimedia/planetary-radio/show/2016/august-2016-space-policy-edition-sls-europa-cost-of-next-mars-rover-return-of-plutonium-238.html http://www.planetary.org/multimedia/planetary-radio/show/201...