{"id":6784,"date":"2014-03-06T17:34:55","date_gmt":"2014-03-06T17:34:55","guid":{"rendered":"http:\/\/hobbyspace.com\/Blog\/?p=6784"},"modified":"2014-03-06T17:42:51","modified_gmt":"2014-03-06T17:42:51","slug":"martian-sand-dunes-in-spring","status":"publish","type":"post","link":"https:\/\/hobbyspace.com\/Blog\/?p=6784","title":{"rendered":"Martian sand dunes in spring"},"content":{"rendered":"<p>Another satellite image of the often strange and wonderful Mars landscape &#8211;\u00a0<a href=\"https:\/\/twitter.com\/NASA\/status\/441614586609823744\" target=\"_d\">Twitter \/ NASA:\u00a0<\/a><\/p>\n<p style=\"padding-left: 30px;\"><em>Martian sand dunes in spring are emerging from their winter CO2 (dry) ice cover: <a dir=\"ltr\" title=\"http:\/\/www.nasa.gov\/content\/martian-sand-dunes-in-spring\/#.UxikKfldWSo\" href=\"http:\/\/t.co\/nLaY4VrMko\" target=\"_blank\" rel=\"nofollow\" data-expanded-url=\"http:\/\/www.nasa.gov\/content\/martian-sand-dunes-in-spring\/#.UxikKfldWSo\">http:\/\/www.nasa.gov\/content\/martian-sand-dunes-in-spring\/#.UxikKfldWSo\u00a0\u2026<\/a> <a dir=\"ltr\" href=\"https:\/\/twitter.com\/HiRISE\">@HiRISE<\/a>\u00a0 <a dir=\"ltr\" href=\"http:\/\/t.co\/16HXzGC2SK\" data-pre-embedded=\"true\">pic.twitter.com\/16HXzGC2SK<\/a><\/em><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/pbs.twimg.com\/media\/BiDuIGVCcAAGyAE.jpg:large\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"6785\" data-permalink=\"https:\/\/hobbyspace.com\/Blog\/?attachment_id=6785\" data-orig-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2014\/03\/BiDuIGVCcAAGyAE1.jpg\" data-orig-size=\"598,374\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"BiDuIGVCcAAGyAE[1]\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2014\/03\/BiDuIGVCcAAGyAE1.jpg\" class=\"aligncenter  wp-image-6785\" alt=\"BiDuIGVCcAAGyAE[1]\" src=\"http:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2014\/03\/BiDuIGVCcAAGyAE1.jpg\" width=\"478\" height=\"299\" srcset=\"https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2014\/03\/BiDuIGVCcAAGyAE1.jpg 598w, https:\/\/hobbyspace.com\/Blog\/wp-content\/uploads\/2014\/03\/BiDuIGVCcAAGyAE1-300x187.jpg 300w\" sizes=\"auto, (max-width: 478px) 100vw, 478px\" \/><\/a><\/p>\n<p>More info at<\/p>\n<p style=\"text-align: center;\"><strong><a href=\"http:\/\/www.nasa.gov\/content\/martian-sand-dunes-in-spring\/#.UxiywONdVtA\" target=\"_d\">Martian Sand Dunes in Spring\u00a0<\/a><\/strong><\/p>\n<p>Mars\u2019 northern-most sand dunes are beginning to emerge from their winter cover of seasonal carbon dioxide (dry) ice. Dark, bare south-facing slopes are soaking up the warmth of the sun.<\/p>\n<p>The steep lee sides of the dunes are also ice-free along the crest, allowing sand to slide down the dune. Dark splotches are places where ice cracked earlier in spring, releasing sand. Soon the dunes will be completely bare and all signs of spring activity will be gone.<\/p>\n<p>This image was acquired by the HiRISE camera aboard NASA&#8217;s Mars Reconnaissance Orbiter on Jan. 16, 2014. The University of Arizona, Tucson, operates the HiRISE camera, which was built by Ball Aerospace &amp; Technologies Corp., Boulder, Colo. NASA&#8217;s Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Mars Reconnaissance Orbiter Project for the NASA Science Mission Directorate, Washington.<\/p>\n<p><a href=\"http:\/\/www.uahirise.org\/ESP_035033_2635\">&gt; More information and image products<\/a><\/p>\n<p><em>Image Credit: NASA\/JPL-Caltech\/Univ. of Arizona<br \/>\nCaption: Candy Hansen<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Another satellite image of the often strange and wonderful Mars landscape &#8211;\u00a0Twitter \/ NASA:\u00a0 Martian sand dunes in spring are emerging from their winter CO2 (dry) ice cover: http:\/\/www.nasa.gov\/content\/martian-sand-dunes-in-spring\/#.UxikKfldWSo\u00a0\u2026 @HiRISE\u00a0 pic.twitter.com\/16HXzGC2SK More info at Martian Sand Dunes in Spring\u00a0 Mars\u2019 northern-most sand dunes are beginning to emerge from their winter cover of seasonal carbon dioxide &hellip; <a href=\"https:\/\/hobbyspace.com\/Blog\/?p=6784\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Martian sand dunes in spring<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[78,36],"tags":[],"class_list":["post-6784","post","type-post","status-publish","format-standard","hentry","category-mars","category-multiple-media"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p34aWK-1Lq","jetpack-related-posts":[{"id":2743,"url":"https:\/\/hobbyspace.com\/Blog\/?p=2743","url_meta":{"origin":6784,"position":0},"title":"Dry-ice sleds on Mars","author":"TopSpacer","date":"June 11, 2013","format":false,"excerpt":"This article and video report on investigations into how chunks of dry-ice could explain long gullies seen on Martian sand dunes:\u00a0 Marks on Martian Dunes May Be Tracks of Dry-Ice Sleds - NASA http:\/\/youtu.be\/mNXBfz1iVzc","rel":"","context":"In &quot;Space Science&quot;","block_context":{"text":"Space Science","link":"https:\/\/hobbyspace.com\/Blog\/?cat=13"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/mNXBfz1iVzc\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":11935,"url":"https:\/\/hobbyspace.com\/Blog\/?p=11935","url_meta":{"origin":6784,"position":1},"title":"Video: Curiosity rover report &#8211; Dec.15.15","author":"TopSpacer","date":"December 16, 2015","format":false,"excerpt":"The latest report from NASA JPL on what's happening with the Curiosity rover on Mars: Curiosity performs the first investigation of active sand dunes on another planet. Studying the Bagnold Dunes on Mars will help scientists understand the physics of Martian dunes and how they move. https:\/\/youtu.be\/ur_TeOs3S64","rel":"","context":"In &quot;Mars&quot;","block_context":{"text":"Mars","link":"https:\/\/hobbyspace.com\/Blog\/?cat=78"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/ur_TeOs3S64\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":14118,"url":"https:\/\/hobbyspace.com\/Blog\/?p=14118","url_meta":{"origin":6784,"position":2},"title":"MRO images:  A sampling of Martian sand dunes","author":"TopSpacer","date":"March 29, 2017","format":false,"excerpt":"Beautiful views of sand dune formations on Mars via the HiRISE camera on the Mars Reconnaissance Orbiter\u00a0(MRO): ** The Splitting of the Dunes The mound in the center of this image appears to have blocked the path of the dunes as they marched south (north is to the left in\u2026","rel":"","context":"In &quot;Mars&quot;","block_context":{"text":"Mars","link":"https:\/\/hobbyspace.com\/Blog\/?cat=78"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2017\/03\/pia215721-1024x640.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":6554,"url":"https:\/\/hobbyspace.com\/Blog\/?p=6554","url_meta":{"origin":6784,"position":3},"title":"Sand dunes on Mars fly in formation","author":"TopSpacer","date":"February 19, 2014","format":false,"excerpt":"There are lots of weird surface features seen on Mars in images taken by the orbiters. Here is one of the weirder ones: Martian Dunes Flying in Formation Migratory birds and military aircraft often fly in a V-shaped formation. 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