{"id":384517,"date":"2026-03-11T02:10:58","date_gmt":"2026-03-10T16:10:58","guid":{"rendered":"http:\/\/www.vibewire.com.au\/?guid=71358b7cea46dfbb99c5bc7df58ae74b"},"modified":"2026-03-11T02:10:58","modified_gmt":"2026-03-10T16:10:58","slug":"celebrating-nasas-mars-reconnaissance-orbiters-20th-anniversary-crater-near-sirenum-fossae","status":"publish","type":"post","link":"https:\/\/www.vibewire.com.au\/?p=384517","title":{"rendered":"Celebrating NASA\u2019s Mars Reconnaissance Orbiter\u2019s 20th Anniversary: Crater Near Sirenum Fossae"},"content":{"rendered":"<div id=\"\" class=\"hds-media hds-module wp-block-image\">\n<div class=\"margin-left-auto margin-right-auto nasa-block-align-inline\">\n<div class=\"hds-media-wrapper margin-left-auto margin-right-auto\">\n<figure class=\"hds-media-inner hds-cover-wrapper hds-media-ratio-none \"><a href=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2026\/03\/pia11777orig.jpg\"><img decoding=\"async\" width=\"2048\" height=\"1280\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2026\/03\/pia11777orig.jpg?w=2048\" class=\"attachment-2048x2048 size-2048x2048\" alt=\"An impact crater with a sharp rim seen from above. Most of the landscape is orange, while the steep inner slope on the north side of the crater is a deep blue-black.\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" loading=\"lazy\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2026\/03\/pia11777orig.jpg 2880w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2026\/03\/pia11777orig.jpg?resize=300,188 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2026\/03\/pia11777orig.jpg?resize=768,480 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2026\/03\/pia11777orig.jpg?resize=1024,640 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2026\/03\/pia11777orig.jpg?resize=1536,960 1536w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2026\/03\/pia11777orig.jpg?resize=2048,1280 2048w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2026\/03\/pia11777orig.jpg?resize=400,250 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2026\/03\/pia11777orig.jpg?resize=600,375 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2026\/03\/pia11777orig.jpg?resize=900,563 900w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2026\/03\/pia11777orig.jpg?resize=1200,750 1200w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2026\/03\/pia11777orig.jpg?resize=2000,1250 2000w\" sizes=\"auto, (max-width: 2048px) 100vw, 2048px\" \/><\/a><\/figure><figcaption class=\"hds-caption padding-y-2\">\n<div class=\"hds-credits\">NASA\/JPL-Caltech\/Univ. of Arizona<\/div>\n<\/figcaption><\/div>\n<\/div>\n<\/div>\n<p>NASA&#8217;s <a href=\"https:\/\/science.nasa.gov\/mission\/mars-reconnaissance-orbiter\/\" rel=\"noopener\">Mars Reconnaissance Orbiter<\/a> (MRO) captures a detailed view of a relatively fresh crater in this image released on June 3, 2015. The crater has a sharp rim and well-preserved ejecta. The steep inner slopes are carved by gullies and include possible recurring <a href=\"https:\/\/www.nasa.gov\/missions\/mars-reconnaissance-orbiter\/recurring-martian-streaks-flowing-sand-not-water\/\">slope lineae<\/a> on the equator-facing slopes. This crater is monitored for changes over time.<\/p>\n<p>For 20 years, MRO has sought out the history of water on Mars with its science instruments. In that time, it has sent back important data that will help us when future astronauts land on the planet and explore it.<\/p>\n<p><em>Image credit:<\/em><em> <\/em><em>NASA\/JPL-Caltech\/Univ. of Arizona<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>NASA\u2019s Mars Reconnaissance Orbiter (MRO) captures a detailed view of a relatively fresh crater in this image released on June 3, 2015. The crater has a sharp rim and well-preserved ejecta. The steep inner slopes are carved by gullies and include possible recurring slope lineae on the equator-facing slopes. This crater is monitored for changes [\u2026]<\/p>\n","protected":false},"author":13,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[19834,7727],"tags":[],"class_list":["post-384517","post","type-post","status-publish","format-standard","hentry","category-craters","category-mars"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.vibewire.com.au\/index.php?rest_route=\/wp\/v2\/posts\/384517","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vibewire.com.au\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vibewire.com.au\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vibewire.com.au\/index.php?rest_route=\/wp\/v2\/users\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vibewire.com.au\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=384517"}],"version-history":[{"count":1,"href":"https:\/\/www.vibewire.com.au\/index.php?rest_route=\/wp\/v2\/posts\/384517\/revisions"}],"predecessor-version":[{"id":384518,"href":"https:\/\/www.vibewire.com.au\/index.php?rest_route=\/wp\/v2\/posts\/384517\/revisions\/384518"}],"wp:attachment":[{"href":"https:\/\/www.vibewire.com.au\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=384517"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vibewire.com.au\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=384517"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vibewire.com.au\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=384517"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}