By: ArtAlienTV-Gigapans
Image: NASA/JPL/University of Arizona ⧉
Subject: ArtAlienTV-Gigapans
License: Copyright, All Rights Reserved

Uploaded: 20 Mar 2021
Last Updated: 20 Mar 2021

324 megapixels
21,251 x 15,240 pixels
70.8 in X 50.8 in at 300dpi
0 pixels per inch

A field of sand dunes occupies this frosty 5-kilometer diameter crater in the high-latitudes of the northern plains of Mars. Some dunes have separated from the main field and appear to be climbing up the crater slope along a gully-like form. The surface of the main dune field is characterized by a series of dark-toned polygonal patterns. These may be the result of seasonal frost processes. Several of the steeper dune slopes, pointing in the downwind direction, host narrow furrows suggesting the start of gully formation. The crater floor contains a variety of textures, including lobate and striped patterns that indicate seasonal thaw caused by sublimating ice. Broad downslope movement of materials on the crater slopes opposite the dune field superficially resemble gullies, except that they are generally not defined by distinctive alcoves, incised channels, or sediment aprons. These are the hallmarks of gullies elsewhere on the planet. Written by: Ginny Gulick (narration: Tre Gibbs) (15 March 2021) This image has had 20% brightness and 20% contrast applied for better shape definition. See video here for more 👉 My enhanced image clips are subject to copyright but the gigapan image is Creative Commons: Attribution. All these finds must be credited to ArtAlienTV unless stated otherwise. TRY the FREE ArtAlienTV APP HERE 👉 http://h.fanapp.mobi/artalientv Access to over 20 million space images. Powerful space research utility app. Please Donate with PAYPAL and help this important research. Send payments to: [email protected] Very much appreciated however small 😊👍