Is the Vacuum Empty? -- the Higgs Field and the Dark Energy

The problems in understanding the true nature of the “vacuum” of space were discussed by theoretical physicist Alvaro de Rújula from CERN (the European Council for Nuclear Research) in Geneva, Switzerland, and a professor of physics at Boston University at the EPL symposium, “Physics In Our Times” held today (10 May) at the Fondation Del Duca de l’Institut de France, Paris.