Physics World, the international physics magazine produced by the Institute of Physics, has named ALPHA's recent trapping of antihydrogen as part of the #1 physics breakthrough of 2010, jointly with the ASACUSA Collaboration's formation of antihydrogen in a 'cusp' trap. The complete list of ten breakthroughs from 2010 includes measurements of the atmosphere of an exoplanet 130 light-years away, a Bose-Einstein condenstate of photons, a new measurement of the proton size, and the first proton collisions at the LHC. Read the article and see the fill list here.