Have intelligent beings from other planets visited Earth in the past? Ancient Indian monuments, sculptures on Easter Island, Egyptian pyramids, biblical legends - isn't this evidence of space missions on Earth? Have aliens had a decisive influence on human development? Did Atlantis, Lemuria, and other civilizations exist? And if so, what happened to them? Why did the mammoths suddenly disappear? And what about the mystery of the Bermuda Triangle? Or maybe the epic of Gilgamesh is the first space report?