Biography : *Stavros Katsanevas (male, born 1953)*professor exceptional class at University Paris Diderot, director of EGO, is the director of the European Gravitational Observatory (2018-). He has served as director of the Laboratory of Astroparticle Physics and Cosmology (APC) hosting the Paris Centre for Cosmological Physics (president George Smoot, Nobel Prize 2006) from 2014 till the end of 2017. He has also been deputy director of the National Institute of Nuclear and Particle Physics (IN2P3) of CNRS responsible for Astroparticle Physics and Cosmology (2002-2012), first coordinator of the EU funded ERANET ASPERA (2006-2012) gathering the European agencies funding Astroparticle Physics,first chairman of the European Consortium of Astroparticle Physics (APPEC) (2012-2015). His scientific contributions (over 400 publications), concern Particle Physics (QCD, neutrino properites, Higgs and supersymmetry searches) at CERN and Fermilab beam design (CERN to Gran Sasso), Astroparticle Physics (high energy neutrino telescopes), applications (smart sensors, medical physics) and phenomenological studies and simulations (Supersymmetry). He has written over 10 essays in different languages on the connection betwwen art and science, he is also member of the orientation board on Art and Science of the Foundation Daniel and NinaCarasso. Universe 2.0 Abstract : I will present the current work of the groupe I am coordinating, at the interface of art and science, under the name Universe 2.0. The aim of this project is to initiate an exploration, through a cross-reflection between artists and scientists, of the field that began with the recent discovery of gravitational waves, urgently questioning again the nature of space and time, their texture, the notions of origin and horizon, the role of information circulating in the Universe and its conservation or loss, the role of the human as observer and/or perturbator, more generally the nature of our embedding in the cosmos. In short, the overall image of a Gravitational Universe or Universe 2.0. I will present past experience with the connection between art and science as well as the preparation of future exhibition with the preliminary name "The rythm of Space". "Squaring the Circle", by Attila Csorgo References - Participation to the organisation of the art-science large retrospective of TomasSaraceno "On air" at the Palais de Tokyo 2018-2019, Article "In media Res" in the exhibition catalogue - "/Une procession cosmique/", opening essay in the book describing "/Transhumances/" a flagship project of Marseille Capitale Culturelle Européenne 2013. Published in Actes Sud. - "Commanditaire" of the work of art "/Squaring the Circle/" by Attila Csorgo to celebrate the 100 years of Cosmic Rays, financed by the /Fondation de France/in the framework of the program "Nouveaux commanditaires". The work was first exposed in the Museum of Modern Art "Palais de Tokyo", Paris and permanently exposed since June 2014 in the premises of the APC Laboratory.