Tonight on the History Channel was a program called "Secrets of the Ancient World". This episode dealt with UFOs as found in ancient writings. Sadaputa Prabhu was on discussing the Vimanas in the Mahabharata and Ramayan. Two interesting episodes in Alexander the Great's life were told in which UFOs assisted. Apparently the description of flying shields was recorded by both sides of the conflict. At one point, it is written that one of these shields fired a beam at a fortress wall which was destroyed allowing Alexander to invade. Anyways, it was pretty interesting.

Gauracandra