Interview: Global race to detect dark matter still on, says head of CERN

GENEVA, Dec. 5 (Xinhua) -- Even after decades of astrophysical and cosmological research and experiments, the biggest mystery in the universe - the elusive substance of dark matter -- still remains a head scratcher, the head of the European Organization for Nuclear Research (CERN) told Xinhua. Fabiola Gianotti, director-general of CERN, said in a recent interview that CERN has been breaking new ground in the search for dark matter, but that scientists are yet to accomplish what would be one of the most significant discoveries in physics. "Today, we know that some 25 percent of the universe is made up of a form of matter which is not known, and therefore it's called dark matter. We still...