Everybody was really excited about Curiosity, and that had this big plutonium battery on board that has plutonium-238, which actually has a higher specific activity than the low-enriched uranium fuel of these molten salt reactors, which means that the effects would be negligible, because you launch it cold, and when it gets into space is where you actually activate this reactor.
Alle var virkelig begejstrede for Curiosity, og den havde dette store plutoniumbatteri om bord der har plutonium-238, hvilket faktisk har en højere specifik aktivitet end det mindre berigede uranbrændstof  i disse smeltede salt reaktorer, hvilket betyder at effekterne ville være ubetydelige, fordi man sender den kold op, og når den kommer ud i verdensrummet  er det faktisk der man aktiverer denne reaktor.