World-class expertise in the study of plasma — the hot, charged state of matter composed of free electrons and atomic nuclei, or ions, that makes up 99 percent of the visible universe — has won frontier science projects for three physicists at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL). The three-year awards provide PPPL principal research physicists Sam Cohen, Erik Gilson and Yevgeny Raitses with $330,000 each per year to pursue projects ranging from the study of plasma particles thousands of times thinner than a human hair to the formation of celestial bodies. The PPPL projects represent three of the nine awarded by DOE.