Office of Science . Simulating the Fourth State of Matter to Harness Fusion . An image from a computer simulation shows multi-scale turbulence in plasma. It includes both the large-scale motion of the ions and the faster, small-scale motion of the electrons. Image courtesy of E.A. Belli, General Atomics As you gaze into the night sky, stars look like tiny, glowing pinpricks shining through the dark. But inside those stars, reactions occur that prod...