Cosmic Diary

Welcome to Cosmic Diary Skip to content Scientists Discussion Discovery Research Public lectures Search GO RSS Feed Twitter FaceBook Share Latest Posts May 22, 2012 by lfenton When dunes die A piece of Mars: This is what dunes look like when they die. At least on Mars. On Earth they typically get buried or eroded away. On Mars geology works slowly enough that the steep slopes of dunes are gradually reworked and pitted, and covered in fine layers of bright dust. (HiRISE PSP_005980_1085) aeolian | dunes | dust | erosion May 21, 2012 by lfenton Staircases A piece of Mars: Sedimentary layers on Mars are revealed by sandblasting. These are giant staircases dropping down towards the upper right, looking like some old eroded temple or city. Some bluish sand remains as a reminder of what scoured ...