I was born in Argentina, where I studied up to obtaining a PhD from the National University at La Plata. After several fellowships (Sussex University, Inst. for Radioastronomy, Princeton University, Lawrence Livermore Natl. Lab.) and long stays in Italy, I started a new group on high-energy astrophysics in Barcelona. I have received several scientific awards (among them, the Chinese Academy of Science Senior Visiting Professorship, the Friedrich Wilhelm Bessel Award of the Humboldt Foundation of Germany, the Shakti Duggal Award on Cosmic Ray Physics of the International Union of Pure and Applied Physics, and the Guggenheim Fellowship). I have published 220+ papers, which have 12000+ citations. These papers can be accessed from ADS (http://bit.ly/1f9pno4). I edited 7 books. I became Director of the Institute of Space Sciences in March, 2016.