Moontanman 2231 Posted August 20, 2020 According to a new paper Mars was not a water world in the deep past but an ice world. Rivers and alluvial fans were most likely made under a covering of ices says a paper in Nature Geoscience. https://www.forbes.com/sites/jamiecartereurope/2020/08/04/was-mars-once-the-white-planet-ice-sheets-not-rivers-created-martian-valleys-say-scientists 2 Share this post Link to post Share on other sites
joigus 356 Posted August 20, 2020 Very interesting piece of news. Thank you. +1 Although, AFAIK, Mars' surface is very homogeneous, I wonder if one could detect signs of past transport phenomena, normally associated to glaciers, like erratics. Something like that would definitely clinch the case, IMO. Or maybe Mars' geology is just too boring to hope for that. Scratching patterns could be another sign. Maybe also difficult to see on Mars' surface, as Martian soil is generally soft and windswept. 1 Share this post Link to post Share on other sites
Danijel Gorupec 94 Posted August 20, 2020 Very nice, Moontanman... as you once proposed and I accepted as more logical. 1 Share this post Link to post Share on other sites
