Denis Puy is full professor at the University of Montpellier 2. He obtained his PhD in 1992, with a theoretical study on the role of thermal instability during the cosmological recombination period. He then obtained a EEC Marie Curie postdoc at the SISSA-Trieste in the cosmology group of Dennis Sciama. He became Tomalla visiting assistant professor at the Institute for Theoretical Physics at the University of Zurich, followed by a position of Assistant at the University of Geneva. He joined LUPM in 2005.