{"id":9368,"date":"2014-12-04T15:23:11","date_gmt":"2014-12-04T20:23:11","guid":{"rendered":"http:\/\/hobbyspace.com\/Blog\/?p=9368"},"modified":"2014-12-04T15:23:11","modified_gmt":"2014-12-04T20:23:11","slug":"video-attempts-to-explain-loss-of-water-from-mars","status":"publish","type":"post","link":"https:\/\/hobbyspace.com\/Blog\/?p=9368","title":{"rendered":"Video: Attempts to explain loss of water from Mars"},"content":{"rendered":"<p>Here&#8217;s a <a href=\"http:\/\/www.seti.org\" target=\"_blank\">SETI Institute<\/a> seminar by Stephen Brecht on the question of what happened to the water believed once to have covered significant portions of Mars:\u00a0<a href=\"http:\/\/www.seti.org\/weeky-lecture\/attempts-explain-water-loss-mars\" target=\"_d\">Attempts to explain water loss from Mars &#8211;\u00a0SETI Institute<\/a><\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"1600\" height=\"900\" src=\"https:\/\/www.youtube.com\/embed\/Qmcnpe-j2z8?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=en&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n<p>From the video caption:<\/p>\n<p style=\"padding-left: 30px;\"><em>The debate about whether or not Mars ever had life upon it centers on the issue of water.<\/em><\/p>\n<p><em>Was there water on Mars? If so, where has it gone? One of the explanations for the water loss focuses on the idea that the solar wind is removing the water by acceleration ionospheric ions and removing them from Mars. <\/em><\/p>\n<p><em>The problem is complicated by a variety of features: the presence of crustal magnetic fields on the surface of Mars, the photo-chemistry taking place in Mars&#8217; atmosphere\/ionosphere, and the solar activity (EUV flux and solar wind behavior), and finally the small size of Mars. These features make for a very non-linear interaction which in many regions has little to do with fluid dynamics but rather plasma kinetics. <\/em><\/p>\n<p><em>In this talk a discussion of these issues as well as results of kinetic plasma simulations with data comparisons will be presented. Dr. Brecht will also discuss how the results from the ongoing MAVEN mission at Mars can be used to test the presented plasma simulation predictions.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Here&#8217;s a SETI Institute seminar by Stephen Brecht on the question of what happened to the water believed once to have covered significant portions of Mars:\u00a0Attempts to explain water loss from Mars &#8211;\u00a0SETI Institute From the video caption: The debate about whether or not Mars ever had life upon it centers on the issue of &hellip; <a href=\"https:\/\/hobbyspace.com\/Blog\/?p=9368\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Video: Attempts to explain loss of water from Mars<\/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_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":[78,13],"tags":[],"class_list":["post-9368","post","type-post","status-publish","format-standard","hentry","category-mars","category-space-science"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p34aWK-2r6","jetpack-related-posts":[{"id":8021,"url":"https:\/\/hobbyspace.com\/Blog\/?p=8021","url_meta":{"origin":9368,"position":0},"title":"Video: Pascal Lee talks about Photos and Deimos","author":"TopSpacer","date":"June 4, 2014","format":false,"excerpt":"In this SETI Institute blog, Mars expert\u00a0Pascal Lee talks about a Mission to Phobos and Deimos: Exploring the Moons of Mars\u00a0: After five decades of spacecraft exploration of the Solar System, the origin of two moons of Mars, Phobos and Deimos, remains a perplexing mystery. Are they a) captured asteroids,\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\/img.youtube.com\/vi\/4S7M-Wt61Hk\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":18632,"url":"https:\/\/hobbyspace.com\/Blog\/?p=18632","url_meta":{"origin":9368,"position":1},"title":"Space sciences roundup &#8211; May.2.2019","author":"TopSpacer","date":"May 2, 2019","format":false,"excerpt":"A sampling of recent articles, videos, and images from space-related science news items: ** Latest Mars exploration news: Curiosity Mission Updates - NASA Mars Curiosity Rover - \"Sols 2390-2393: Confirmation of another taste of the \"Clay-Bearing Unit\", as good as the first?\" - Curiosity drills a second hole into clay\u2026","rel":"","context":"In &quot;Astronomy&quot;","block_context":{"text":"Astronomy","link":"https:\/\/hobbyspace.com\/Blog\/?cat=12"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2019\/05\/NRB_609313639EDR_F0751398NCAM00309M_-br21.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":20523,"url":"https:\/\/hobbyspace.com\/Blog\/?p=20523","url_meta":{"origin":9368,"position":2},"title":"Space settlement roundup \u2013 Dec.17.2019","author":"TopSpacer","date":"December 17, 2019","format":false,"excerpt":"A sampling of recent articles, videos, and images related to human expansion into the solar system (see also previous space settlement postings): ** Map shows Mars settlers where to find water: NASA's Treasure Map for Water Ice on Mars | NASA A new paper published in Geophysical Research Letters will\u2026","rel":"","context":"In &quot;In Space Infrastructure&quot;","block_context":{"text":"In Space Infrastructure","link":"https:\/\/hobbyspace.com\/Blog\/?cat=15"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2019\/12\/pia235141-500x223.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":5365,"url":"https:\/\/hobbyspace.com\/Blog\/?p=5365","url_meta":{"origin":9368,"position":3},"title":"SETI Institute Videos: Ices, sand, water and dust in motion on Mars","author":"TopSpacer","date":"November 20, 2013","format":false,"excerpt":"Lori Fenton of the\u00a0SETI Institute\u00a0gives a talk in their seminar series titled:\u00a0Sight-seeing in the 21st century -- ices, sand, water, and dust in motion on Mars\u00a0- http:\/\/www.youtube.com\/watch?v=_x0ELRk7AAs&feature=share Caption: Humankind's earnest reconnaissance of Mars, made possible by advances in our technology, has progressed significantly over the past 150 years. Early ideas\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\/img.youtube.com\/vi\/_x0ELRk7AAs\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":8974,"url":"https:\/\/hobbyspace.com\/Blog\/?p=8974","url_meta":{"origin":9368,"position":4},"title":"Video: The case for shallow subsurface flowing water on Mars","author":"TopSpacer","date":"October 7, 2014","format":false,"excerpt":"This SETI Institute seminar by presents evidence\u00a0for subsurface water flows on Mars: \u00a0Recurring Slope Lineae: Shallow subsurface flowing water on Mars - David Stillman [Southwest Research Institute). From the caption: Abstract: Recurring Slope Lineae (RSL) are narrow (0.5 to 5 m) dark albedo features that incrementally lengthen down steep slopes\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\/img.youtube.com\/vi\/_qTdj2raqX4\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":15921,"url":"https:\/\/hobbyspace.com\/Blog\/?p=15921","url_meta":{"origin":9368,"position":5},"title":"Videos: Mars sample return mission + &#8220;Revving up for Future Exploration of the Red Planet&#8221;","author":"TopSpacer","date":"April 27, 2018","format":false,"excerpt":"Here is a new video from NASA JPL about a plan to return a sample of Martian soil to the earth: https:\/\/youtu.be\/ie3-UwPLUho And here is a video of a recent public lecture at the SETI Institute giving an overview of Mars research plans: Three SETI Institute planetary scientists who have\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\/img.youtube.com\/vi\/ie3-UwPLUho\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/9368","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=9368"}],"version-history":[{"count":1,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/9368\/revisions"}],"predecessor-version":[{"id":9369,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/9368\/revisions\/9369"}],"wp:attachment":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9368"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9368"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9368"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}