{"id":235848,"date":"2007-11-13T18:16:00","date_gmt":"2007-11-13T18:16:00","guid":{"rendered":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/167884main_image_feature_746_ys_full.jpg"},"modified":"2023-03-17T14:59:33","modified_gmt":"2023-03-17T18:59:33","slug":"big-spherules-near-victoria","status":"inherit","type":"attachment","link":"https:\/\/www.nasa.gov\/image-detail\/big-spherules-near-victoria\/","title":{"rendered":"Big Spherules near Victoria"},"author":9,"comment_status":"closed","ping_status":"closed","template":"","meta":{"nasa_hds_core_meta_l10n":"en-US","nasa_hds_core_meta_article_editor":"","nasa_hds_core_meta_article_contacts":[],"nasa_hds_core_meta_article_topic":"","nasa_hds_core_meta_linked_locations":[],"nasa_hds_core_meta_article_related_articles":[],"hds_migrate_meta_pr_release_id":"","hds_migrate_meta_pr_release_type":"","nasa_hds_core_meta_location_x":"","nasa_hds_core_meta_location_y":"","nasa_hds_core_meta_gallery_images":[],"nasa_hds_core_meta_video_cc_file_id":"","nasa_hds_core_meta_audio_cc_file_id":""},"media-tags":[],"read_time":1,"video_cc_url":"","audio_cc_url":"","credits":"","original_date":{"stamp":0,"display":""},"description":{"rendered":"<p class=\"attachment\"><a href='https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/167884main_image_feature_746_ys_full.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/167884main_image_feature_746_ys_full.jpg?w=300\" class=\"attachment-medium size-medium\" alt=\"NASA - Big Spherules near Victoria\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/167884main_image_feature_746_ys_full.jpg 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/167884main_image_feature_746_ys_full.jpg?resize=150,150 150w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/167884main_image_feature_746_ys_full.jpg?resize=300,300 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/167884main_image_feature_746_ys_full.jpg?resize=768,768 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/167884main_image_feature_746_ys_full.jpg?resize=50,50 50w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/167884main_image_feature_746_ys_full.jpg?resize=100,100 100w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/167884main_image_feature_746_ys_full.jpg?resize=200,200 200w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/167884main_image_feature_746_ys_full.jpg?resize=400,400 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/167884main_image_feature_746_ys_full.jpg?resize=600,600 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/167884main_image_feature_746_ys_full.jpg?resize=900,900 900w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>This frame from the microscopic imager on the Mars Exploration Rover Opportunity shows spherules up to about 5 millimeters (one-fifth of an inch) in diameter. The camera took this image during the 924th Martian day, or sol, of Opportunity’s Mars-surface mission (Aug. 30, 2006), when the rover was about 200 meters (650 feet) north of Victoria Crater.<br \/>\nOpportunity discovered spherules like these, nicknamed “blueberries,” at its landing site in “Eagle Crater,” and investigations determined them to be iron-rich concretions that formed inside deposits soaked with groundwater. However, such concretions were much smaller or absent at the ground surface along much of the rover’s trek of more than 5 kilometers (3 miles) southward to Victoria. The big ones showed up again when Opportunity got to the ring, or annulus, of material excavated and thrown outward by the impact that created Victoria Crater. Researchers hypothesize that some layer beneath the surface in Victoria’s vicinity was once soaked with water long enough to form the concretions, that the crater-forming impact dispersed some material from that layer, and that Opportunity might encounter that layer in place if the rover drives down into the crater. <em>Image Credit: NASA\/JPL-Caltech\/Cornell\/U.S. Geological Survey<\/em><\/p>\n"},"caption":{"rendered":"<p>This frame from the microscopic imager on the Mars Exploration Rover Opportunity shows spherules up to about 5 millimeters (one-fifth of an inch) in diameter. The camera took this image during the 924th Martian day, or sol, of Opportunity’s Mars-surface mission (Aug. 30, 2006), when the rover was about 200 meters (650 ft) north of Victoria Crater.<\/p>\n"},"alt_text":"NASA - Big Spherules near Victoria","media_type":"image","mime_type":"image\/jpeg","media_details":{"width":1024,"height":1024,"file":"2023\/03\/167884main_image_feature_746_ys_full.jpg","filesize":349615,"sizes":{"thumbnail":{"file":"167884main_image_feature_746_ys_full.jpg?resize=150,150","width":150,"height":150,"filesize":349615,"mime_type":"image\/jpeg","source_url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/167884main_image_feature_746_ys_full.jpg?w=150&h=150&crop=1"},"medium":{"file":"167884main_image_feature_746_ys_full.jpg?resize=300,300","width":300,"height":300,"filesize":349615,"mime_type":"image\/jpeg","source_url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/167884main_image_feature_746_ys_full.jpg?w=300"},"medium_large":{"file":"167884main_image_feature_746_ys_full.jpg?resize=768,768","width":768,"height":768,"filesize":349615,"mime_type":"image\/jpeg","source_url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/167884main_image_feature_746_ys_full.jpg?w=1024"},"thumbnail-sm":{"file":"167884main_image_feature_746_ys_full.jpg?resize=50,50","width":50,"height":50,"filesize":349615,"mime_type":"image\/jpeg","source_url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/167884main_image_feature_746_ys_full.jpg?w=50&h=50&crop=1"},"thumbnail-md":{"file":"167884main_image_feature_746_ys_full.jpg?resize=100,100","width":100,"height":100,"filesize":349615,"mime_type":"image\/jpeg","source_url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/167884main_image_feature_746_ys_full.jpg?w=100&h=100&crop=1"},"thumbnail-lg":{"file":"167884main_image_feature_746_ys_full.jpg?resize=200,200","width":200,"height":200,"filesize":349615,"mime_type":"image\/jpeg","source_url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/167884main_image_feature_746_ys_full.jpg?w=200&h=200&crop=1"},"card-xsm":{"file":"167884main_image_feature_746_ys_full.jpg?resize=400,400","width":400,"height":400,"filesize":349615,"mime_type":"image\/jpeg","source_url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/167884main_image_feature_746_ys_full.jpg?w=400"},"card-sm":{"file":"167884main_image_feature_746_ys_full.jpg?resize=600,600","width":600,"height":600,"filesize":349615,"mime_type":"image\/jpeg","source_url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/167884main_image_feature_746_ys_full.jpg?w=600"},"card-md":{"file":"167884main_image_feature_746_ys_full.jpg?resize=900,900","width":900,"height":900,"filesize":349615,"mime_type":"image\/jpeg","source_url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/167884main_image_feature_746_ys_full.jpg?w=900"},"full":{"file":"167884main_image_feature_746_ys_full.jpg","width":1024,"height":1024,"mime_type":"image\/jpeg","source_url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/167884main_image_feature_746_ys_full.jpg"}},"image_meta":{"aperture":"0","credit":"","camera":"","caption":"","created_timestamp":"0","copyright":"","focal_length":"0","iso":"0","shutter_speed":"0","title":"","orientation":"0","keywords":[]},"credits":"","original_date":{"stamp":0,"display":""}},"post":null,"source_url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/167884main_image_feature_746_ys_full.jpg","_links":{"self":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/media\/235848"}],"collection":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/media"}],"about":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/types\/attachment"}],"author":[{"embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/users\/9"}],"wp:term":[{"taxonomy":"media-tags","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/media-tags?post=235848"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}