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‘Stealth dark matter’ theory may explain universe’s missing mass

25 September 2015 Astronomy Now

A Lawrence Livermore National Laboratory team has combined theoretical and computational physics techniques using the Laboratory’s 2-petaflop Vulcan supercomputer to devise a new model of dark matter. They found that dark matter is “stealthy” today, but would have been easy to detect in the extremely high-temperature plasma conditions that pervaded the early universe.