Mars , signs of water 火星 , 水的跡象

AFP PHOTO/HO / NASA/JPL-Caltech/University of Arizona 

New Video Showing Water Found Flowing on Mars
http://www.ibtimes.com/articles/192754/20110804/new-video-showing-water-found-flowing-on-mars.htm
AFP PHOTO / NASA/JPL-CALTECH/UNIVERSITY OF ARIZONA
Scientists find evidence of running water on Mars - thestar.com
http://www.thestar.com/news/world/article/1034689--scientists-find-evidence-of-running-water-on-mars?bn=1 
08-04-11: The Star-Ledger's Photos of the Day | NJ.com
http://photos.nj.com/njcom_photo_essays/2011/08/08-04-11_the_star-ledgers_phot.html