\nCercet\u0103torii b\u0103nuiau deja de mai mul\u0163i ani c\u0103 sub stratul gros de ghea\u0163\u0103 care acoper\u0103 Enceladus se afl\u0103 ap\u0103 \u00een stare lichid\u0103. \u00cen prezent, \u015ftiin\u0163a a f\u0103cut un pas \u00eenainte, iar oamenii de \u015ftiin\u0163\u0103 au anun\u0163at c\u0103 sub acel strat gros de ghea\u0163\u0103 s-ar putea afla primele forme de via\u0163\u0103 extraterestre ce ar putea fi descoperite de oameni, iar acestea nu sunt fosilizate, ci vii.<\/p>\n
\nAnalizele datelor transmise de sonda spa\u0163ial\u0103 Cassini, aflat\u0103 \u00een acea zon\u0103 a Sistemului Solar, au stat la baza a dou\u0103 studii recente care i-au f\u0103cut pe oamenii de \u015ftiin\u0163\u0103 s\u0103 spere c\u0103 vor descoperi \u00een viitor forme de via\u0163\u0103 care tr\u0103iesc pe alte corpuri tere\u015fti, nu doar pe Terra. Primul studiu, publicat joi \u00een revista Nature, a analizat o serie de fragmente minuscule minerale, expulzate de gheizerele de pe Enceladus.<\/p>\n
\nAcele bobi\u0163e de siliciu, spun oamenii de \u015ftiin\u0163\u0103, nu pot s\u0103 provin\u0103 dec\u00e2t din pu\u0163uri hidrotermale situate pe fundul unui ocean de ap\u0103 lichid\u0103, care ejecteaz\u0103 ap\u0103 cald\u0103 \u00eenc\u0103rcat\u0103 cu minerale, la o temperatur\u0103 de cel pu\u0163in 90\u00b0C.<\/p>\n
\nAstfel de izvoare cu ap\u0103 cald\u0103 exist\u0103 pe fundul oceanelor de pe Terra \u015fi ele reprezint\u0103 zone \u00een care au loc o serie de schimburi intense \u00eentre ap\u0103 \u015fi roc\u0103, dezvolt\u00e2nd un mediu \u00een care bacteriile, printre alte vie\u0163uitoare, pot s\u0103 prospere. De altfel, bobi\u0163ele de siliciu de pe Enceladus sunt “tinere”, dovad\u0103 a faptului c\u0103 activitatea geotermal\u0103 a satelitului lui Saturn se desf\u0103\u015foar\u0103 \u00een prezent \u015fi, f\u0103r\u0103 \u00eendoial\u0103, de c\u00e2teva milioane de ani deja.<\/p>\n
\nAl doilea studiu a analizat norii de vapori \u015fi de ghea\u0163\u0103 de la polul sudic al satelitului Enceladus, care con\u0163in \u015fi metan. Studiul afirm\u0103 c\u0103 activitatea geotermal\u0103 reprezint\u0103 una dintre cele dou\u0103 explica\u0163ii posibile care justific\u0103 prezen\u0163a metanului \u00een acei nori.<\/p>\n
\nP\u00e2n\u0103 \u00een prezent, activitatea geotermal\u0103 nu a fost identificat\u0103 pe niciun alt corp ceresc \u00een afar\u0103 de Terra, iar prezen\u0163a apei calde care interac\u0163ioneaz\u0103 cu un fund oceanic st\u00e2ncos reprezint\u0103 un indiciu serios care atest\u0103 prezen\u0163a unor organisme vii. Cercet\u0103torii se afl\u0103 \u00eens\u0103, deocamdat\u0103, doar \u00eentr-o etap\u0103 a supozi\u0163iilor. Dup\u0103 ce sonda Cassini \u00ee\u015fi va \u00eencheia misiunea, \u00een 2017, mai multe proiecte ce vizeaz\u0103 lansarea unor noi vehicule spa\u0163iale c\u0103tre Saturn \u015fi sateli\u0163ii s\u0103i vor fi demarate \u00een Europa, Statele Unite \u015fi Japonia.<\/p>\n","protected":false},"excerpt":{"rendered":"
Izvoare cu ap\u0103 cald\u0103, active, au fost descoperite de oamenii de \u015ftiin\u0163\u0103 pe Enceladus, unul dintre sateli\u0163ii planetei Saturn, informeaz\u0103 site-ul 20minutes.fr.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[510],"tags":[33999,39792,12877],"class_list":["post-119043","post","type-post","status-publish","format-standard","hentry","category-actualitate","tag-apa-calda","tag-enceladus","tag-izvoare"],"_links":{"self":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/posts\/119043","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=119043"}],"version-history":[{"count":0,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/posts\/119043\/revisions"}],"wp:attachment":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=119043"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=119043"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=119043"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}