Nuclear reactor startup Transatomic Power is shutting down operations, after deciding it doesn’t see a viable path to bringing its molten salt reactor designs to scale. But the startup still wants its technology to play a role in the future of advanced nuclear reactors — so it’s making it all public. In a Tuesday announcement, Leslie Dewan, Transatomic’s CEO and co-founder, wrote, “We haven’t been able to scale up the company rapidly enough to build our reactor in a reasonable timeframe.