Salyavin, The NASA chief recently stated that there may be life forms that exist on Mars today. Here's the link:
http://www.examiner.com/article/ufo-enthusiasts-spot-odd-objects-on-mars-maybe-curiosity-wasn-t-first-explorer http://www.examiner.com/article/ufo-enthusiasts-spot-odd-objects-on-mars-maybe-curiosity-wasn-t-first-explorer
