ScienceMars HiRISE imagesMars HiRISE imagesBy Jacob Kastrenakes / @jake_kSource NASA/JPL/University of Arizona Sep 20, 2013, 5:27 PM UTC|CommentsShare this storyPreviousNext1/12 Exposed layers of sediment at Nili Fossae, a group of large troughsCommentsMost Popular11 great movies from the 2023 Sundance Film FestivalIs this Microsoft’s ChatGPT-powered Bing?Breaking a 16-year-old tradition in Dwarf FortressTwitter will let businesses keep their gold checkmarks — for $1,000 per monthLisa’s Family PhotosFrom our sponsorAdvertiser Content From