Status Report of the CAST Experiment

The CAST Collaboration has recently published the best experimental limit on the axion-photon coupling dominating for masses up to 0.02 eV. This limit superseding for the first time the astrophysical limits. Preliminary results from the He-4 Phase are presented, extending to masses up to 0.39 eV. The collaboration has succesfully commissioned the He-3 gas system which is indispensable to reach masses up to 1.2 eV, covering the HDM limit. During 2007 the CCD detector and the X-ray telescope were refurbished and all the other magnet lines were equipped with better performing Micromegas detectors. The experiment has already started the He-3 run based on solid grounds for further exploring uncharted but promising regions of phase space.