Waring's claims are not backed up by scientific evidence – space boffins have not found any clues that there is, or ever was, intelligent life on Mars. Alien expert Nigel Watson, author of 'UFOs of the First World War, said Waring's claims were little more than fairy tale. "It is a stretch of the imagination to see this rock as representing the head of Socrates," Watson told The Sun. "Certainly Mars has not been habitable for human existence for a very long time, so it is impossible that he could have lived there or had a statue made of him...