The image shows a zoomed in section of Valles Marineris canyon . Nasa has created video showing the 'cloud of smoke ' It claims it could be a nuclear explosion or extra-terrestrial methane . The site suggests UFOvni Disclosure cut off the live feed showing the explosion . Scientists say it is an illusion caused by the angle of crater and trench . Last year , physicist Dr John Brandenburg said he believed Martians known as Cydonians and Utopians were massacred in the nuclear attack .
The image shows a zoomed in section of Valles Marineris canyon . UFOvni Disclosure has created video showing the 'cloud of smoke ' It claims it could be a nuclear explosion or extra-terrestrial methane . The site suggests Nasa cut off the live feed showing the explosion . Scientists say it is an illusion caused by the angle of crater and trench . Last year , physicist Dr John Brandenburg said he believed Martians known as Cydonians and Utopians were massacred in the nuclear attack .