{"id":8017,"date":"2018-07-31T12:20:35","date_gmt":"2018-07-31T15:20:35","guid":{"rendered":"https:\/\/blog.mindthegraph.com\/?p=8017"},"modified":"2022-10-18T08:10:27","modified_gmt":"2022-10-18T11:10:27","slug":"nasa-water-on-mars","status":"publish","type":"post","link":"https:\/\/mindthegraph.com\/blog\/fi\/nasa-water-on-mars\/","title":{"rendered":"Vett\u00e4 Marsissa: Mars: Mit\u00e4 sinun on tiedett\u00e4v\u00e4 - ja n\u00e4ht\u00e4v\u00e4"},"content":{"rendered":"

Tutkijat ovat l\u00f6yt\u00e4neet todisteita siit\u00e4, ett\u00e4 Marsissa on nestem\u00e4ist\u00e4 vett\u00e4.<\/p>\n

Uusi paperi otsikolla Tutkatodisteet Marsin j\u00e4\u00e4tik\u00f6nalaisesta nestem\u00e4isest\u00e4 vedest\u00e4 Marsissa<\/a>\u00a0julkaistiin Science-lehdess\u00e4. Artikkelin mukaan Marsin etel\u00e4navan j\u00e4\u00e4kerroksen alla saattaa olla nestem\u00e4ist\u00e4 vett\u00e4.<\/p>\n

\"Vett\u00e4 pidet\u00e4\u00e4n yhten\u00e4 el\u00e4m\u00e4n perusedellytyksist\u00e4. T\u00e4m\u00e4 on ensimm\u00e4inen Marsista koskaan l\u00f6ydetty vakaa nestem\u00e4isen veden alue, ja sit\u00e4 voitaisiin pit\u00e4\u00e4 mahdollisena elinymp\u00e4rist\u00f6n\u00e4\", selitt\u00e4\u00e4 tietoja analysoinut Roberto Orosei, Italiassa sijaitsevan radioastronomian instituutin johtava tutkija.<\/p>\n

T\u00e4m\u00e4 l\u00f6yt\u00f6 on erityisen h\u00e4mm\u00e4stytt\u00e4v\u00e4, koska t\u00e4llaisia maanalaisia j\u00e4rvi\u00e4 on maapallon napojen l\u00e4hell\u00e4, l\u00e4hinn\u00e4 Gr\u00f6nlannissa ja Etel\u00e4mantereella. Yksi n\u00e4ist\u00e4 j\u00e4rvist\u00e4, Etel\u00e4mantereella sijaitseva j\u00e4\u00e4tik\u00f6nalainen Whillans-j\u00e4rvi, ei ole ollut maan pinnalla miljooniin vuosiin. Ja \u00e4skett\u00e4in tutkijat l\u00f6ysiv\u00e4t bakteereja, jotka el\u00e4v\u00e4t siell\u00e4 edelleen t\u00e4ysin eristyksiss\u00e4.<\/p>\n

Vostok-j\u00e4rvi, joka sijaitsee kilometrien pituisen j\u00e4\u00e4n alla, on ollut j\u00e4\u00e4n peitossa ainakin 15 miljoonaa vuotta. El\u00e4m\u00e4nmuotojen analyysi viittaa siihen, ett\u00e4 Vostok-j\u00e4rvess\u00e4 saattaa olla ainutlaatuinen ekosysteemi, joka perustuu kivien kemikaaleihin auringonvalon sijaan ja joka on el\u00e4nyt eristyksiss\u00e4 satoja tuhansia vuosia.<\/p>\n

\"AntarcticLakes\"
Vostok-j\u00e4rven, Etel\u00e4mantereen suurimman tunnetun j\u00e4\u00e4tik\u00f6nalaisen j\u00e4rven infografiikka. Nestem\u00e4isen veden uskotaan viev\u00e4n tuhansia vuosia kulkeakseen j\u00e4rven l\u00e4pi, joka on Pohjois-Amerikan Ontarioj\u00e4rven kokoinen. Luotto: Nicolle Rager-Fuller \/ NSF.<\/figcaption><\/figure>\n
<\/div>\n
<\/div>\n

Tutkijat ovat l\u00f6yt\u00e4neet mikro-organismeja my\u00f6s maanalaisista kaivoksista. N\u00e4m\u00e4 mikro-organismit ovat sukua muinaisille lajeille, jotka eliv\u00e4t aikoinaan vesipitoisissa ymp\u00e4rist\u00f6iss\u00e4. T\u00e4llaiset vaellukset her\u00e4tt\u00e4v\u00e4t mahdollisuuden, ett\u00e4 sama tapahtuu Marsissa - veden vet\u00e4ytyess\u00e4 el\u00e4m\u00e4 siirtyy syvemm\u00e4lle maan alle.<\/p>\n

Parhaat kuvat vedest\u00e4 Marsissa<\/strong><\/h2>\n

 <\/p>\n

Me uskomme, ett\u00e4 tieteen on oltava visuaalista. Jos haluat n\u00e4ytt\u00e4\u00e4 yksityiskohtia ja saada lukijan kiinnitt\u00e4m\u00e4\u00e4n huomiota ty\u00f6h\u00f6si, visuaaliset resurssit ovat loistava ty\u00f6kalu.<\/p>\n

Siksi valitsin parhaat kuvat t\u00e4st\u00e4 tuoreesta l\u00f6yd\u00f6st\u00e4.<\/p>\n

01. Marsin etel\u00e4inen napalevy, otettu Euroopan avaruusj\u00e4rjest\u00f6n Mars Express -kiertoradalla. ESA\/DLR\/FU Berlin<\/strong><\/p>\n

 <\/p>\n

\"ca_0727NID_Mars_South_Polar_Polar_Ice_Cap_online\"<\/a><\/p>\n

 <\/p>\n

02. My\u00f6s Marsin etel\u00e4inen napalappu ja Mars Expressin v\u00e4rikoodatut havainnot on sijoitettu p\u00e4\u00e4llekk\u00e4in paikassa, jossa ne havaittiin. ESA\/DLR\/FU Berlin<\/strong><\/p>\n

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

 <\/p>\n

03. Viimeisen\u00e4 Euroopan avaruusj\u00e4rjest\u00f6n Mars Express -avaruusalus etsii planeetan etel\u00e4navalta nestem\u00e4ist\u00e4 vett\u00e4.\u00a0<\/strong>ESA\/INAF\/Davide Coero Borga<\/strong><\/p>\n

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

 <\/p>\n

\"Seuraa vett\u00e4\"<\/a> on ollut yksi NASAn Mars-ohjelman p\u00e4\u00e4tavoitteista. Vesi ohjaa t\u00e4ll\u00e4 hetkell\u00e4 NASA:n tutkimusta ulommassa aurinkokunnassa. Jupiterin Europa-kuun kaltaiset valtameripalloiset maailmat voivat olla elinkelpoisia. Jopa Ceresin kaltaiset protoplaneetat voivat selitt\u00e4\u00e4, miten vesi varastoituu kivisiin \"\u00e4mp\u00e4reihin\", jotka kuljettavat vett\u00e4 l\u00e4pi aurinkokunnan.<\/p>","protected":false},"excerpt":{"rendered":"

Tutkijat ovat l\u00f6yt\u00e4neet todisteita siit\u00e4, ett\u00e4 Marsissa on nestem\u00e4ist\u00e4 vett\u00e4. Science-julkaisussa julkaistiin uusi artikkeli otsikolla Radar evidence of subglacial liquid water on Mars. Artikkelin mukaan Marsin etel\u00e4navan j\u00e4\u00e4kerroksen alla saattaa olla nestem\u00e4ist\u00e4 vett\u00e4. \"Vett\u00e4 pidet\u00e4\u00e4n yhten\u00e4 el\u00e4m\u00e4n perusedellytyksist\u00e4. [...]<\/p>","protected":false},"author":11,"featured_media":8032,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"image","meta":[],"categories":[959,28],"tags":[247,51,246,249,248,554,71,250],"yoast_head":"\nWater on Mars: What you need to know - and see - Mind the Graph Blog<\/title>\n<meta name=\"description\" content=\"The discovery of water on Mars is especially amazing because there are underground lakes like this near Earth\u2019s poles, mainly in Greenland and Antarctica.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mindthegraph.com\/blog\/fi\/nasa-water-on-mars\/\" \/>\n<meta property=\"og:locale\" content=\"fi_FI\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Water on Mars: What you need to know - and see - Mind the Graph Blog\" \/>\n<meta property=\"og:description\" content=\"The discovery of water on Mars is especially amazing because there are underground lakes like this near Earth\u2019s poles, mainly in Greenland and Antarctica.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mindthegraph.com\/blog\/fi\/nasa-water-on-mars\/\" \/>\n<meta property=\"og:site_name\" content=\"Mind the Graph Blog\" \/>\n<meta property=\"article:published_time\" content=\"2018-07-31T15:20:35+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-10-18T11:10:27+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2018\/07\/ghf.png\" \/>\n\t<meta property=\"og:image:width\" content=\"632\" \/>\n\t<meta property=\"og:image:height\" content=\"474\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Fabiola Soares\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Fabiola Soares\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Water on Mars: What you need to know - 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