Fabio is an astrophysicist at the Center for Astrophysics | Harvard & Smithsonian in Cambridge (MA), and a Clay Fellow at the Smithsonian Astrophysical Observatory. His research focuses on "all things black holes," from the local ones to the farthest ever discovered, from the small to the super-massive ones. A large part of his research deals with the formation, cosmological evolution and observational signatures of the first population of black holes formed more than 13 billion years ago.Fabio is a very active science educator and loves outreach! With TED Conferences, he is the science educator for 10+ TED-Ed videos, mostly about physics and astrophysics. He is also a writer for Scientific American.