The Nephilim were the offspring (result of inter breeding) of what the Bible calls angels (Sons of God) and the women of the earth. The ancient astronaut theory seeks to explain anomalies in the human past, whether they be archaeological, mythological, anthropological, or palaeoanthropological. Evidence for this idea is found (a) in the improbability of Homo sapiens emerging so suddenly, according to the principles of orthodox Darwinism; and (b) in the myths of ancient civilisations which describe human-like gods coming down from the heavens and creating mankind in their own image. Homo sapiens is thus regarded as a hybrid being, incorporating a mix of terrestrial genes from Homo erectus and extraterrestrial genes from the race of the gods. Prior to the modern age of space travel and genetics, this theory for the origins of man could not have been conceived. And even now, in the 21st century, there are many people who would regard it as science fiction. However, in the light of the problems with the orthodox theory of human evolution, the idea of a genetic intervention by an intelligent human-like species (who themselves evolved on another planet over a more credible time frame) does require to be taken seriously as a potential solution to the mystery. According to Sitchins interpretation of the ancient myths, an extraterrestrial race of gods known as the Anunnaki came down to the Earth 445,000 years ago from a planet known as Marduk or Nibiru a planet which remains in our solar system on a vast elliptical orbit of 3,600 years. These Anunnaki-gods then created Homo sapiens, partly in their own image, using a process of genetic engineering, with the aim of using this hybrid species as a slave race. Sitchin undertakes a remarkable study of the myths of the creation of man, in which he argues that many words and phrases anticipate the modern practices of genetic engineering and cloning. http://www.planetxvideo.com