The Great Debate, Part IFrom MicaThe Great Debate, Part I A talk by Prof. Giuseppe Longo, Department of Physics, University of Napoli Federico III In 1920, Harlow Shapley and Heber D. Curtis held what became known as The Great Debate: Are distant spiral nebulae small and within our own galaxy, or are they large independent galaxies in their own right? This talk outlines the history that led up to The Great Debate. ReferencesThe 1920 Shapley-Curtis Discussion: Background, Issues, and Aftermath by Virginia Trimble The 'Great Debate': What Really Happened by Michael A. Hoskin, Editor, Journal for the History of Astronomy Wikipedia article about The Great Debate Media |