Number 21 (Story #4), February 13, 1991 by Phillip F. Schewe and Ben Stein A RECORD HIGH MATTER DENSITY in an inertial-confinement fusion experiment has been achieved. S. Nahai of Osaka University in Japan has reported that 8-10 kilojoule laser pulses were used to compress a carbon-deuterium-tritium target to a density of 600 tons per cubic meter or, equivalently, a peak density of 1032 electrons per cubic meter, a density comparable to that at the Sun's core. (Nature, 7 Feb. 1991.)