Alien Civilizations:Scientific Proof of their Existence

Long ago an advanced, alien civilization had a mission to dispatch life to earth. The theory was formulated by scientists Francis Crick and Leslie in 1972. Since that time much hard evidence has been gathered to support it. NASA has found water on Mars, scientists have also identified the basic stuff of life on meteors and the Kepler Telescope has found hundreds of earth-like planets. The book opens with an examination of these topics. Then moves on to the investigation of the modern UFO phenomenon and the evidence for ancient alien visition including the DNA analysis of non-human skulls found in Mexico and Peru..