Prof. Andrea Milani is Full Professor of Mathematical Physics in the Department of Mathematics of the University of Pisa. His areas of research include the N-body problem, stability of the Solar System, asteroid dynamics and families, satellite geodesy, planetary exploration, orbit determination, and asteroid impact risk. He is the founder of the two web services, NeoDyS and AstDyS, dedicated to providing general information on all known asteroids, and the developer, together with his collaborators over the years, of the software suite OrbFit.