{"id":3389,"date":"2013-07-13T15:49:39","date_gmt":"2013-07-13T15:49:39","guid":{"rendered":"http:\/\/hobbyspace.com\/Blog\/?p=3389"},"modified":"2013-07-13T15:58:39","modified_gmt":"2013-07-13T15:58:39","slug":"3389","status":"publish","type":"post","link":"https:\/\/hobbyspace.com\/Blog\/?p=3389","title":{"rendered":"Ice pits and Swiss cheese terrain at the Mars south pole"},"content":{"rendered":"

Observation satellites orbiting Mars have spotted many odd Mars surface features<\/a> over the years. Here is an article about a circular depression in the south polar region seen by the\u00a0 Mars Reconnaissance Orbiter<\/a> <\/em>camera : The Ice Pits of Mars – The Planetary Society<\/a><\/p>\n

\"SouthernIceCap_500x512\"<\/a><\/p>\n

This circular depression on the south polar ice cap is about four kilometers across. It first caught the eye of Mars explorers in the 70s, and they still debate whether it’s an impact crater or a collapse feature. The ‘Swiss cheese’ terrain consists of shallow pits where carbon dioxide ice has sublimated away. This landscape was imaged by the high-resolution camera aboard the Mars Reconnaissance Orbiter<\/a> on four separate occasions pictured here. From left to right: March 2013, May 2013, September 2007, and December 2012. Click to see at full size<\/a>.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Observation satellites orbiting Mars have spotted many odd Mars surface features over the years. Here is an article about a circular depression in the south polar region seen by the\u00a0 Mars Reconnaissance Orbiter camera : The Ice Pits of Mars – The Planetary Society This circular depression on the south polar ice cap is about … Continue reading Ice pits and Swiss cheese terrain at the Mars south pole<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_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":""},"categories":[78,36,13],"tags":[],"class_list":["post-3389","post","type-post","status-publish","format-standard","hentry","category-mars","category-multiple-media","category-space-science"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/s34aWK-3389","jetpack-related-posts":[{"id":13469,"url":"https:\/\/hobbyspace.com\/Blog\/?p=13469","url_meta":{"origin":3389,"position":0},"title":"Video: “The history of the Martian South Polar Cap”","author":"TopSpacer","date":"November 5, 2016","format":false,"excerpt":"UC Santa Cruz grad student\u00a0Carver Bierson\u00a0gives an interesting SETI Institute talk about how the southern polar cap of Mars came to consist of multiple alternating layers of water ice and frozen CO2. He also addresses the question of whether the storehouse of earth's nuclear weapons could be used to melt\u2026","rel":"","context":"In "Mars"","block_context":{"text":"Mars","link":"https:\/\/hobbyspace.com\/Blog\/?cat=78"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/SSQ_exfk7GA\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":10340,"url":"https:\/\/hobbyspace.com\/Blog\/?p=10340","url_meta":{"origin":3389,"position":1},"title":"Study shows belts of buried glaciers in Mars central latitudes","author":"TopSpacer","date":"April 9, 2015","format":false,"excerpt":"It's been known for a long time that there is substantial water ice below the surface of the\u00a0polar regions\u00a0of Mars. Much less water was expected in the middle\u00a0latitudes. Now a Danish group has found signs that in fact there are massive amounts of water in the central latitudes. If proven,\u2026","rel":"","context":"In "Mars"","block_context":{"text":"Mars","link":"https:\/\/hobbyspace.com\/Blog\/?cat=78"},"img":{"alt_text":"mars_sphere_LDAs_sort2-500[1]","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2015\/04\/mars_sphere_LDAs_sort2-5001.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":10735,"url":"https:\/\/hobbyspace.com\/Blog\/?p=10735","url_meta":{"origin":3389,"position":2},"title":"Spotting caves on Mars","author":"TopSpacer","date":"June 10, 2015","format":false,"excerpt":"Bob Zimmerman reports on\u00a0a new scientific paper that describes a type of pit seen on the Mars surface that looks very similar to cave openings on earth:\u00a0Finding caves on Mars\u00a0-Behind The Black. Bob notes that a cluster of such pits are in area where there could be significant water ice\u2026","rel":"","context":"In "Mars"","block_context":{"text":"Mars","link":"https:\/\/hobbyspace.com\/Blog\/?cat=78"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":10065,"url":"https:\/\/hobbyspace.com\/Blog\/?p=10065","url_meta":{"origin":3389,"position":3},"title":"NASA study indicates Mars once had huge ocean","author":"TopSpacer","date":"March 5, 2015","format":false,"excerpt":"Mars was a whole lot wetter once upon a time: NASA Research Suggests Mars Once Had More Water than Earth\u2019s Arctic Ocean \u00a0 NASA scientists have determined that a primitive ocean on Mars held more water than Earth's Arctic Ocean and that the Red Planet has lost 87 percent of\u2026","rel":"","context":"In "Mars"","block_context":{"text":"Mars","link":"https:\/\/hobbyspace.com\/Blog\/?cat=78"},"img":{"alt_text":"15-032[1]","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2015\/03\/15-0321.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":13551,"url":"https:\/\/hobbyspace.com\/Blog\/?p=13551","url_meta":{"origin":3389,"position":4},"title":"Radar study finds Mars ice deposit with water comparable to Lake Superior","author":"TopSpacer","date":"November 26, 2016","format":false,"excerpt":"A huge underground deposit of water has been detected on Mars: Mars Ice Deposit Holds as Much Water as Lake Superior Frozen beneath a region of cracked and pitted plains on Mars lies about as much water as what's in Lake Superior, largest of the Great Lakes, researchers using NASA's\u2026","rel":"","context":"In "Mars"","block_context":{"text":"Mars","link":"https:\/\/hobbyspace.com\/Blog\/?cat=78"},"img":{"alt_text":"pia21136_hires1","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2016\/11\/PIA21136_hires1-1024x637.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":18925,"url":"https:\/\/hobbyspace.com\/Blog\/?p=18925","url_meta":{"origin":3389,"position":5},"title":"Space sciences roundup – June.5.2019","author":"TopSpacer","date":"June 4, 2019","format":false,"excerpt":"A sampling of recent articles, videos, and images from space-related science news items: [ Update: The InSight Mars lander team has come up with a plan for diagnosing and then testing a possible fix for the ground temperature probe that is stuck at a depth that is too shallow to\u2026","rel":"","context":"In "Asteroids & Comets"","block_context":{"text":"Asteroids & Comets","link":"https:\/\/hobbyspace.com\/Blog\/?cat=75"},"img":{"alt_text":"Side by side observation and artist's impression of Asteroid 199","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2019\/06\/Side_by_side_observation_and_artist_s_impression_of_Asteroid_1999_KW4_large1.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2019\/06\/Side_by_side_observation_and_artist_s_impression_of_Asteroid_1999_KW4_large1.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2019\/06\/Side_by_side_observation_and_artist_s_impression_of_Asteroid_1999_KW4_large1.jpg?resize=525%2C300 1.5x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/3389","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3389"}],"version-history":[{"count":3,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/3389\/revisions"}],"predecessor-version":[{"id":3392,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/3389\/revisions\/3392"}],"wp:attachment":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3389"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3389"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3389"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}