Abstract : In the heart of the Mediterranean, at a depth of about 2500 m, the eyes of ANTARES monitor the Universe seeking high energy cosmic neutrinos in order to reveal the secrets of the cosmic rays which their origin remains unknown since the discovery of their existence in early twentieth century. With its 12 lines, carrying 885 photomultipliers, ANTARES is the largest under water neutrino detector in the world. With its angular resolution, better than 0.3 degrees above 10 TeV, it is able to detect cosmic neutrinos coming from point-like sources. With two years of data taking in smaller configurations with 5 and 10 lines, several studies are in progress in order to improve the detection sensitivity and the discovery potential of cosmic neutrinos. Preliminary results on this topic will be discussed.