EXPLORE THE CORE: Check out this incredible 3D rendering of Idaho National Laboratory’s Advanced Test Reactor. ATR is world’s most powerful research reactor used by the Department of Energy, the U.S. Navy, and industry to advance nuclear fuels and materials research. The blue glow you see is Cherenkov radiation, which is essentially a shockwave of light released by water molecules in the reactor’s coolant as neutrons pass through them. The glow is most intense around the clover-shaped pie pieces

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