Edit. HarperCollins Publisher, Inc., 1988 New York. BasicBooks. 8ºM (20,5×13,5cm). 203 págs. Rústica ilustrada. Cubierta deslucida. Leves signos de humedad sin afectar a lectura. Signos de uso. «Now updated with a major new afterword that incorporates the latest cosmological research, this classic of contemporary science writing by a Nobel Prize -winning physicist explains to general readers what happened when the universe began, and how we know.»