9Why has NASA not announced to the world the greatest scientific discovery ever made in the history of space exploration? Do you want to know what has really been discovered by the orbiters and rovers on the planet Mars? While scientists spend billions of dollars confirming that microbes live in the Martian soil, people sitting at home on their computers studying the Mars images are making far more astounding discoveries... they have found the possible archaeological remains of an extraterrestrial civilization. Hard to believe? Well, this challenging book invites you to take a look at the astounding pictures yourself and make up your own mind. Secret Mars presents over 160 incredible images taken by American and European spacecraft that reveal possible evidence of a civilization that once lived and may still live, on the planet Mars... powerful evidence that scientists are ignoring! This is the complete revised edition from the original 2013 publication in Britain. A visual and fascinating book!