• Japan Debuts Six-Story Experimental Fusion Reactor

    Japan Debuts Six-Story Experimental Fusion Reactor

    The biggest experimental nuclear fusion reactor in operation was inaugurated north of Tokyo today, as scientists continue to plug away at making nuclear fusion a viable source of the world’s energy. The reactor—JT-60SA—is a tokamak, a doughnut-shaped reactor that can heat plasma to 360 million degrees Fahrenheit (200 million degrees Celsius). The reactor fired up…