In the days of global warming and BSE, science is increasingly a public issue. This book provides a theoretical framework which allows us to understand why and how scientists address the general public. The author develops the argument that turning to the public is not simply a response to inaccurate reporting by journalists or to public curiosity, nor a wish to gain recognition and additional funding. Rather, it is a tactic to which the scientific community are pushed by certain internal crisis situations. Bucchi examines three cases of scientists turning to the public: the cold fusion case, the COBE/Big Bang issue and Louis Pasteur's public demonstration of the anthrax vaccine, a historical case of public science. Finally, Bucchi presents his unique model of communications between science and the public, carried out through the media. This is a thoughtful and wide-ranging treatment of complex contemporary issues, touching upon the history and sociology of science, communication and media studies. Bucchi's theories on scientific communication in the media are a valuable contribution to the current debate on this subject.1. Introduction 1.1 The canonical account 1.2 The social representation of scientific theories 1.3 A communication continuum1.4 Cognitive trajectories and their obstacles 1.5 The popular stage and its implications 2. When Scientists turn to the public 2.1 When scientists turn to the public 2.2 Metaphors, paradoxes and boundary objects in public communication of science 2.3 Metaphors in science 2.4 Constitutive and popular metaphors 2.5 Metaphors and paradoxes 2.6 Paradox in science 2.7 Boundary objects 3. Case studies 3.0 Preliminary remarks 3.1 Making and unmaking science in public: The Cold Fusion case 3.1.1 Not just 'hyped' science 3.1.2 Signs of (con) fusion 3.1.3 Cold fusion and public communication 3.1.4 Cold fusion and the Italian daily press 3.1.5 In and out of the public level 3.1.6 The ways of deconstruction Appendix A Alsī