Mars pictures reveal frozen sea - A huge, frozen sea lies just below the surface of Mars, a team of European scientists announces. BBC - Sci/Nature The interpretation is based on images taken by the High Resolution Stereo Camera on Europe's Mars Express spacecraft. These show extensive fields of large, platy features - reminiscent of the fractured ice floes found in polar regions on Earth. Rad. There seems to be mounting evidence for large amounts of sub-surface water on Mars. Combined with observations of fluctuating metahne levels in the atmosphere, out chances of finding life or evidence of past life on Mars seem increasingly likely. Exciting times.