{"id":725,"date":"2015-03-18T22:06:20","date_gmt":"2015-03-18T20:06:20","guid":{"rendered":"http:\/\/ziarulderimnic.ro\/?p=725"},"modified":"2015-03-18T22:05:26","modified_gmt":"2015-03-18T20:05:26","slug":"maven-detectat-aurore-nori-misteriosi-marte","status":"publish","type":"post","link":"https:\/\/ziarulderimnic.ro\/?p=725","title":{"rendered":"MAVEN a detectat aurore \u0219i nori misterio\u0219i pe Marte"},"content":{"rendered":"<figure id=\"attachment_726\" aria-describedby=\"caption-attachment-726\" style=\"width: 1000px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/ziarulderimnic.ro\/wp-content\/uploads\/2015\/03\/15-045a.jpg\" data-rel=\"lightbox-image-0\" data-rl_title=\"\" data-rl_caption=\"\" title=\"\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-726 lazyload\" data-src=\"http:\/\/ziarulderimnic.ro\/wp-content\/uploads\/2015\/03\/15-045a.jpg\" alt=\"Artist\u2019s conception of MAVEN\u2019s Imaging UltraViolet Spectrograph (IUVS) observing the \u201cChristmas Lights Aurora&quot; on Mars. MAVEN observations show that aurora on Mars is similar to Earth\u2019s &quot;Northern Lights&quot; but has a different origin. Image Credit: University of Colorado\" width=\"1000\" height=\"750\" data-srcset=\"https:\/\/ziarulderimnic.ro\/wp-content\/uploads\/2015\/03\/15-045a.jpg 1000w, https:\/\/ziarulderimnic.ro\/wp-content\/uploads\/2015\/03\/15-045a-300x225.jpg 300w, https:\/\/ziarulderimnic.ro\/wp-content\/uploads\/2015\/03\/15-045a-900x675.jpg 900w\" data-sizes=\"(max-width: 1000px) 100vw, 1000px\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 1000px; --smush-placeholder-aspect-ratio: 1000\/750;\" \/><noscript><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-726\" src=\"http:\/\/ziarulderimnic.ro\/wp-content\/uploads\/2015\/03\/15-045a.jpg\" alt=\"Artist\u2019s conception of MAVEN\u2019s Imaging UltraViolet Spectrograph (IUVS) observing the \u201cChristmas Lights Aurora&quot; on Mars. MAVEN observations show that aurora on Mars is similar to Earth\u2019s &quot;Northern Lights&quot; but has a different origin. Image Credit: University of Colorado\" width=\"1000\" height=\"750\" srcset=\"https:\/\/ziarulderimnic.ro\/wp-content\/uploads\/2015\/03\/15-045a.jpg 1000w, https:\/\/ziarulderimnic.ro\/wp-content\/uploads\/2015\/03\/15-045a-300x225.jpg 300w, https:\/\/ziarulderimnic.ro\/wp-content\/uploads\/2015\/03\/15-045a-900x675.jpg 900w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/noscript><\/a><figcaption id=\"caption-attachment-726\" class=\"wp-caption-text\">Artist\u2019s conception of MAVEN\u2019s Imaging UltraViolet Spectrograph (IUVS) observing the \u201cChristmas Lights Aurora&#8221; on Mars. MAVEN observations show that aurora on Mars is similar to Earth\u2019s &#8222;Northern Lights&#8221; but has a different origin.<br \/>Image Credit: University of Colorado<\/figcaption><\/figure>\n<p style=\"text-align: justify;\">\u00a0 \u00a0 Nava spa\u021bial\u0103 MAVEN a observat dou\u0103 fenomene nea\u0219teptate \u00een atmosfera mar\u021bian\u0103: un inexplicabil nor de praf la mare \u00een\u0103l\u021bime \u0219i o auror\u0103 ce ajunge ad\u00e2nc \u00een atmosfera mar\u021bian\u0103.<\/p>\n<p style=\"text-align: justify;\">\u00a0 \u00a0 Prezen\u021ba prafului la altitudini orbitale de la 150-300 km de suprafa\u021ba planetei a fost total nea\u0219teptat\u0103. De\u0219i sursa \u0219i compozi\u021bia prafului r\u0103m\u00e2n necunoscute, nu exist\u0103 nici un risc pentru MAVEN \u0219i alte nave spa\u021biale ce orbiteaz\u0103 \u00een jurul planetei Marte.<\/p>\n<p>\u201eDac\u0103 praful provine din atmosfer\u0103, asta demonstreaz\u0103 c\u0103 ne scap\u0103 procese fundamentale din atmosfera ma\u021bian\u0103\u201d, a spus Laila Andersson de la\u00a0University of Colorado&#8217;s Laboratory for Atmospherics and Space Physics (CU LASP), Boulder, Colorado.<\/p>\n<p style=\"text-align: justify;\">\u00a0 \u00a0 Nu se \u0219tie dac\u0103 norul de praf este un fenomen temporar sau este ceva ce dureaz\u0103. Densitatea norului este mai mare la altitudini mai mici. El a fost detectat cu sonda LPW \u0219i p\u00e2n\u0103 acum nici un alt instrument de la bordul MAVEN nu l-a detetctat.<\/p>\n<p style=\"text-align: justify;\">\u00a0 \u00a0 Spectograful \u00een ultraviolete de pe MAVEN (IUVS) a detectat ceea ce oamenii de \u0219tiin\u021b\u0103 au numit \u201eluminile de Cr\u0103ciun\u201d. Pentru cinci zile chiar \u00eenainte de 25 decembrie, MAVEN a detectat o str\u0103lucire ultraviolet\u0103 asem\u0103n\u0103toare aurorei \u00eenv\u00e2rtindu-se \u00een emisfera nordic\u0103 a planetei Marte. Aurora este\u00a0provocat\u0103 de ciocnirea unor particule \u00eenc\u0103rcate electric (de exemplu <a title=\"Electron\" href=\"http:\/\/ro.wikipedia.org\/wiki\/Electron\">electroni<\/a>) din <a title=\"Magnetosfer\u0103\" href=\"http:\/\/ro.wikipedia.org\/wiki\/Magnetosfer%C4%83\">magnetosfer\u0103<\/a> cu atomi din straturile superioare ale atmosferei, provoc\u00e2nd str\u0103lucire gazului din atmosfer\u0103.<\/p>\n<p style=\"text-align: justify;\">\u00a0 \u00a0 \u00a0 \u201eCe e surprinz\u0103tor \u00een leg\u0103tur\u0103 cu aceast\u0103 auror\u0103 este c\u00e2t de ad\u00e2nc coboar\u0103 ea \u00een atmosfer\u0103 &#8211; mult mai ad\u00e2nc dec\u00e2t orice alt\u0103 auror\u0103 observat\u0103 pe P\u0103m\u00e2nt sau \u00een alt\u0103 parte pe Marte\u201d, spune Arnaud Stiepen, membru IUVS la University of Colorado. \u201eElectronii care o produc trebuie s\u0103 fie foarte energiza\u021bi\u201d.<\/p>\n<p style=\"text-align: justify;\">\u00a0 \u00a0 Sursa pentru particule energetice pare s\u0103 fie Soarele. Marte a pierdut cu mult timp \u00een urm\u0103 (miliarde de ani) c\u00e2mpul magentic protector, a\u0219a cum are acum P\u0103m\u00e2mtul. De aceea, electronii lovesc direct \u00een atmosfer\u0103.<\/p>\n<p style=\"text-align: justify;\">\u00a0 \u00a0 MAVEN a fost lansat\u0103 \u00een 18 noiembrie 2013 pentru a rezolva misterul pierderii atmosferei de c\u0103tre Planeta Ro\u0219ie \u0219i c\u00e2t\u0103 ap\u0103 de\u021bine. Nava spa\u021bial\u0103 a ajuns \u00een septembrie 2015 pe orbit\u0103.<\/p>\n<p style=\"text-align: justify;\">\u00a0 \u00a0 Pentru mai multe poze f\u0103cute de MAVEN intra\u021bi <a href=\"http:\/\/www.nasa.gov\/mission_pages\/maven\/main\/index.html#.VQnNao6Ue6c\">aici.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00a0 \u00a0 Nava spa\u021bial\u0103 MAVEN a observat dou\u0103 fenomene nea\u0219teptate \u00een atmosfera mar\u021bian\u0103: un inexplicabil nor de praf la mare<\/p>\n","protected":false},"author":1,"featured_media":728,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","_monsterinsights_skip_tracking":false,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"ngg_post_thumbnail":0,"video_url":"","footnotes":""},"categories":[1,26,12],"tags":[125,126,22,127],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/ziarulderimnic.ro\/index.php?rest_route=\/wp\/v2\/posts\/725"}],"collection":[{"href":"https:\/\/ziarulderimnic.ro\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ziarulderimnic.ro\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ziarulderimnic.ro\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ziarulderimnic.ro\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=725"}],"version-history":[{"count":3,"href":"https:\/\/ziarulderimnic.ro\/index.php?rest_route=\/wp\/v2\/posts\/725\/revisions"}],"predecessor-version":[{"id":730,"href":"https:\/\/ziarulderimnic.ro\/index.php?rest_route=\/wp\/v2\/posts\/725\/revisions\/730"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ziarulderimnic.ro\/index.php?rest_route=\/wp\/v2\/media\/728"}],"wp:attachment":[{"href":"https:\/\/ziarulderimnic.ro\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=725"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ziarulderimnic.ro\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=725"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ziarulderimnic.ro\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=725"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}