A PHOTO: Gullies of Matara Crater Author AlexPublished on April 5, 2018 Gullies on Martian sand dunes, like these in Matara Crater, have been very active, with many flows in the last ten years. via NASA https://ift.tt/2GDsf1J Share this:MastodonEmailLike this:Like Loading... Related posts: A PHOTO: Full-Circle Vista With a Linear Shaped Martian Sand Dune A PHOTO: Well-Preserved Impact Ejecta on Mars A PHOTO: Well-Preserved Impact Ejecta on Mars A PHOTO: Hues in a Crater Slope