Worlds in Collision, the most discussed book of our time, propounds the startling theory that more than once within historical times the order in our planetary system was distrubed and caused enormous cataclysms; the earth became a primeval chaos lashed by tornadoes of cinders; the skies darkened; land masses were destroyed and large portions of the human race perished. The publication of Worlds in Collision, in 1950, shook the scientific world and...