• Author: Immanuel Velikovsky
• ISBN: 9781906833718
• Publisher: Paradigm Books
• Language: English
• Format: Paperback

Worlds in Collision, published in 1950 by Immanuel Velikovsky, proposes catastrophic near collisions between Earth and other planets (primarily Venus and Mars) around the 15th century BCE. Drawing upon ancient myths and religious texts, Velikovsky argues these accounts describe actual cosmic events. Though widely criticized by the scientific community and considered pseudoscience, the book remains popular among alternative history enthusiasts and those interested in catastrophism. It explores themes of planetary upheaval, cultural trauma, and the reinterpretation of historical records.