Foreword : The role of the heretic / Isaac Asimov -- Introduction / Donald Goldsmith -- The sociological context of the Velikovsky controversy / Norman W. Stober -- An analysis of Worlds in collision / Carl Sagan -- Movements of celestial bodies-- Velikovsky's fatal flaw / J. Derral Mulholland -- Early cuneiform evidence for the existence of the planet Venus / Peter J. Huber -- Planetary astronomy and Velikovsky's catastrophism / David Morrison
