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.
Todos estaban muy entusiasmados con Curiosity con esa gran batería de plutonio a bordo, plutonio-238, que tiene una mayor actividad específica que el combustible de uranio poco enriquecido de estos reactores de sales fundidas, lo que significa que los efectos serían insignificantes, porque se lanza en frío, y al ponerlo en el espacio es cuando realmente se activa el reactor.