Is there any conclusive proof that there was life on Mars?
1) “The ALH84001 meteorite was found on December 1984 on Antarctica by members of the ANSMET project; the meteorite weighs 1.93 kg. The sample was ejected from Mars about 17 million years ago and spent 11,000 years in or on the Antarctic ice sheets. Composition analysis by NASA revealed a kind of magnetite that on Earth, is only found in association with certain microorganisms; Then, in August 2002, another NASA team led by Thomas-Keptra published a study indicating that 25% of the magnetite in ALH 84001 occurs as small, uniform-sized crystals that, on Earth, is associated only with biologic activity, and that the remainder of the material appears to be normal inorganic magnetite. The extraction technique did not permit determination as to whether the possibly biologic magnetite was organized into chains as would be expected. The meteorite displays indication of relatively low temperature secondary mineralization by water and show evidence of preterrestrial aqueous alteration. Evidence
To the extent of HUMAN knowledge we have no conclusive proof that life could in fact dwell in a seemingly inhospitable environment such as Mars. BUT scientist are finding more and more species in more and more extreme environments across the Earth which leads to some speculation that maybe life on Mars is not as far-fetched as we had previously believed. Mars is a highly unexplored planet. We have covered a very, very, very, very insignificant fraction of Mars’s surface with probes, and our satellite imagery isn’t highly detailed enough to conclude anything on whether there is primitive life. Not only that, but it’s more likely for life to exist within Mars’s crust as opposed to on the surface (and we’ve really only explored just a bit of its surface), so we have a lot of more room to find life on Mars. Are there big green aliens with crazy big eyes that abduct us in our sleep? I can safely assume the answer is no. As for micro-bacterial life and rudimentary species, I might be so bold
