With this book Immanuel Velikovsky first presented the revolutionary results of his 10-year-long interdisciplinary research to the public, founded modern catast

In the 1950s, Immanuel Velikovsky propounded catastrophism in several popular books including the bestselling Worlds in Collision. He speculated that the ‘pla

Over forty authorities present sections on the nucleus, dust, coma, and tails of comets, along with sections on their origin, and relationships to other solar s