Attack from Mars to Earth. Image source: aliens.wikia.com

Imagine one of your friends claim to have come from Mars, Earth and human beings live among us. You have to explain to him that there is no indication of the existence of the people from Mars on earth does not exist in addition to those years studying the planet b. (Mars) By space agencies and academic centers, is a sign of how even simple life forms exist in the time it has not gotten what wildlife species reach more sophisticated or intelligent species and finally the space trips so that they can تمدنهایی to successfully fulfill the. In response you or your friend argues that humans are not seen by Mars, interest and academic and scientific centers is also governed by the same Martian, and in fact they are the ones that people will rule and because human beings were not allow enslaving; that we have the facts they discover. In such circumstances you have to continue that discussion or trying to see that the scientific evidence or documentation for a more convincing hypothesis presenting opposing sides, your friend can provide you with the evidence as the evidence tampering and unnecessarily reject and ultimately result in the discussion also changes could not be created.