Velikovsky, Immanuel (1895–1979)
Russian author of a number of books, including Worlds
in Collision, in which he claimed that impacts and near encounters between
bodies in the Solar System can explain various dramatic events in human
history. His theories have been effectively demolished by Carl Sagan
Goldsmith, Donald, ed. Scientists Confront Velikovsky. Ithaca,
N.Y.: Cornell University Press (1989).