Scientists make potential breakthrough in search for dark matter

Sept 1 : Scientists have made a possible breakthrough in the hunt for dark matter — observing hints of it during an experiment about a mile (1.6 km) underground in South Dakota — though they stopped short of saying they have finally detected this elusive cosmic component.The researchers described a particle interaction documented at the Sanford Underground Research Facility — built in a former gold mine in the state's Black Hills region — that may have involved a hypothesized particle called a WIMP, short for "weakly interacting massive particle." This is one of the proposed candidates for being a dark matter particle.Ordinary matter makes up stars, planets, people and everything else we can see. But it represents only about 15 per cent of all the matter in the universe. The rest is though