Master in Physics (Laurea) at the University of Pisa in Italy (1993), PhD at the University of Pisa (1996), research associate at CERN (1997), postdoc at the Institut des Hautes Etudes Scientifiques (IHES) in France (1997-1999). Richard C. Tolman Prize Postdoctoral Fellow at the California Institute of Technology in the USA (1999-2001), staff researcher (CR1) at the Institut d’Astrophysique de Paris (IAP) (2001-2004) and Laboratoire Astroparticule et Cosmologie (APC) in Paris (2005) with the Centre National de la Recherche Scientifique (CNRS). Associate Professor (2005-2010), Professor of Physics (2010-2014), College Park Professor (2014-2020) and Resarch Professor (since 2020) at the University of Maryland. Scientific Member and Director at the Max Planck Institute for Gravitational Physics (Albert Einstein Institute) (since 2014). Honorary Professor at the Humboldt University Berlin and at Potsdam University (since 2017).