A closely related subject is radiation. If you want to explore Jupiter, Saturn, or Fukushima you have some new challenges. In the latter case, they're talking

A closely related subject is radiation. If you want to explore Jupiter, Saturn, or Fukushima you have some new challenges. In the latter case, they're talking only a few hours of lifetime for ROV's going into the 500+ Sv/hr environment. I bet the military has a bunch of research on rad-hard equipment they're not keen to share. http://www.smithsonianmag.com/smart-news/fukushima-reactor-shows-highest-radiation-level-initial-meltdown-180962050/ http://www.smithsonianmag.com/smart-news/fukushima-reactor-s...