On 2 June 2013 CERN¹, in collaboration with its local partners, will be inaugurating a scientific tourist trail through the Pays de Gex and the Canton of Geneva known as the Passport to the Big Bang. A major programme of activities has been organised for the general public at various CERN sites, including special events and bike rides.

Geneva, 30 April 2013. The ALPHA collaboration at CERN¹ has published a paper in Nature Communications describing the first direct analysis of how antimatter is affected by gravity.

ALPHA was the first experiment to trap atoms of antihydrogen — neutral antimatter atoms held in place with a strong magnetic field for up to 1000 seconds. The original goal of the experiment was not to study gravity, but the researchers realised that the data they had already collected might be sensitive to gravitational effects.

Geneva, 24 April 2013. The LHCb collaboration at CERN¹ today submitted a paper to Physical Review Letters on the first observation of matter-antimatter asymmetry in the decays of the particle known as the B⁰_s. It is only the fourth subatomic particle known to exhibit such behaviour.

Geneva 3 April 2013. The international team running the Alpha Magnetic Spectrometer (AMS¹) today announced the first results in its search for dark matter. The results, presented by AMS spokesperson Professor Samuel Ting in a seminar at CERN², are to be published in the journal Physical Review Letters. They report the observation of an excess of positrons in the cosmic ray flux.