Tommaso Castellani was born in Rome in 1979.In 2002 he graduates in Physics cum laude (Bsc+Msc) from 'Sapienza' University of Rome, where he obtains a Ph.D. in Physics in 2006. As a Ph.D. student he works in theoretical physics, and particularly in statistical mechanics and physics of disordered systems, both from analytical and computational point of view. After the Ph.D. he works mainly on science communication and science education. He teaches for five years in a vocational school in Rome. In 2005 he is among the founders of the association formaScienza, in which he works until 2011, coordinating and participating in national and international research-action projects on science education and communication. Then he works for three years at the Institute for Research on Population and Social Policies of National Research Council of Italy (CNR) in Rome. His main research interests are science and society relationships, science communication and science education. Since september 2015 he is a teacher at the Daniele Manin school in Rome.
As science writer, he is author of books, many papers on national and international journals, and a cycle of educational videos for the school. Between 2011 and 2013 he makes twelve episodes of the scientific program "Geo&Geo" for the RAI (Italian national television). As a science communicator he is particularly interested in sociological and historical aspects of science. In 2014 he joins the editorial board of the popular science journal "Sapere". In 2017 he publishes his first novel, a "mathematical thriller".