Nj\u00eb meteorit i zbuluar n\u00eb vitin 2022 n\u00eb shkret\u00ebtir\u00ebn e Saharas\u00eb, n\u00eb Mali, \u00ebsht\u00eb formuar t\u00eb pakt\u00ebn 4.1 miliard\u00eb vjet m\u00eb par\u00eb n\u00eb koren e Marsit, duke u konsideruar si m\u00eb i vjetri nd\u00ebr 435 meteorit\u00ebt marsian\u00eb t\u00eb gjetur n\u00eb Tok\u00eb deri m\u00eb sot.<\/p>\n\n\n\n
Sipas shkenc\u00ebtar\u00ebve, analiza e meteoritit, t\u00eb quajtur Teghaza 001, ka zbuluar prova se n\u00eb Marsin e hersh\u00ebm ka pasur uj\u00eb t\u00eb l\u00ebngsh\u00ebm. Zbulimi ofron t\u00eb dh\u00ebna t\u00eb r\u00ebnd\u00ebsishme p\u00ebr kushtet mjedisore t\u00eb planetit t\u00eb kuq miliarda vjet m\u00eb par\u00eb dhe mb\u00ebshtet hipotez\u00ebn se ai mund t\u00eb ket\u00eb pasur kushte t\u00eb p\u00ebrshtatshme p\u00ebr zhvillimin e jet\u00ebs mikrobike.<\/p>\n\n\n\n
Shkenc\u00ebtari planetar Yang Liu, nga Laboratori i Propulsionit me Avion t\u00eb NASA-s, i menaxhuar nga Instituti i Teknologjis\u00eb n\u00eb Kaliforni (Caltech), e cil\u00ebsoi meteoritin si d\u00ebshmi t\u00eb nj\u00eb periudhe kur Marsi ishte ndoshta m\u00eb i ngroht\u00eb dhe m\u00eb i lag\u00ebsht se gjat\u00eb pjes\u00ebs m\u00eb t\u00eb madhe t\u00eb historis\u00eb s\u00eb tij.<\/p>\n\n\n\n
Meteoritit iu n\u00ebnshtrua analizave kimike, t\u00eb cilat treguan se shk\u00ebmbi magmatik, i njohur si gabro, ka nd\u00ebrvepruar me ujin gjat\u00eb ftohjes dhe kristalizimit t\u00eb ngadalt\u00eb n\u00eb n\u00ebntok\u00ebn marsiane. Ai \u00ebsht\u00eb formuar nga magma q\u00eb vinte nga thell\u00ebsit\u00eb e mantelit t\u00eb planetit.<\/p>\n\n\n\n
Sot, Marsi \u00ebsht\u00eb nj\u00eb planet i ftoht\u00eb dhe i that\u00eb, por t\u00eb dh\u00ebnat e mbledhura nga shkenc\u00ebtar\u00ebt tregojn\u00eb se miliarda vjet m\u00eb par\u00eb, n\u00eb sip\u00ebrfaqen e tij mund t\u00eb ken\u00eb ekzistuar lumenj, liqene dhe madje edhe nj\u00eb oqean n\u00eb hemisfer\u00ebn veriore.<\/p>\n\n\n\n
Nj\u00eb dritare drejt historis\u00eb s\u00eb hershme t\u00eb Marsit<\/p>\n\n\n\n
Teghaza 001 u gjet n\u00eb tet\u00eb pjes\u00eb n\u00eb shkret\u00ebtir\u00ebn e Saharas\u00eb, rreth 34 kilometra larg fshatit Bir Sali, n\u00eb Mali. Pjesa m\u00eb e madhe e tij kishte p\u00ebrmasat e nj\u00eb grushti. P\u00ebrb\u00ebr\u00ebsit kryesor\u00eb t\u00eb meteoritit jan\u00eb feldspati dhe pirokseni, nd\u00ebrsa ai p\u00ebrmban edhe kristale zirkoni me uranium.<\/p>\n\n\n\n
P\u00ebr t\u00eb p\u00ebrcaktuar mosh\u00ebn e shk\u00ebmbit, studiuesit p\u00ebrdor\u00ebn nj\u00eb teknik\u00eb q\u00eb bazohet n\u00eb zb\u00ebrthimin radioaktiv t\u00eb uraniumit n\u00eb plumb me kalimin e koh\u00ebs.<\/p>\n\n\n\n
Sipas Liu, meteorit\u00ebt marsian\u00eb jan\u00eb t\u00eb vetmet mostra t\u00eb drejtp\u00ebrdrejta nga Marsi q\u00eb shkenc\u00ebtar\u00ebt mund t\u00eb analizojn\u00eb n\u00eb laborator. Ata ndihmojn\u00eb n\u00eb kuptimin e formimit dhe evolucionit t\u00eb planetit, si dhe n\u00eb vler\u00ebsimin e kushteve q\u00eb mund t\u00eb ken\u00eb favorizuar jet\u00ebn.<\/p>\n\n\n\n
T\u00eb dh\u00ebnat e p\u00ebrftuara nga k\u00ebto mostra plot\u00ebsojn\u00eb dhe v\u00ebrtetojn\u00eb informacionin e mbledhur p\u00ebrmes satelit\u00ebve dhe mjeteve robotike q\u00eb eksplorojn\u00eb sip\u00ebrfaqen e Marsit.<\/p>\n\n\n\n
Vet\u00ebm tre meteorit\u00eb marsian\u00eb t\u00eb njohur datojn\u00eb nga historia e hershme e planetit. Nj\u00ebri prej tyre u zbulua n\u00eb Antarktid\u00eb n\u00eb vitin 1984 dhe fillimisht u vler\u00ebsua t\u00eb ishte rreth 4.5 miliard\u00eb vje\u00e7. Megjithat\u00eb, analizat e fundit tregojn\u00eb se ai \u00ebsht\u00eb af\u00ebrsisht po aq i vjet\u00ebr sa Teghaza 001, i cili mund t\u00eb jet\u00eb pak m\u00eb i vjet\u00ebr.<\/p>\n\n\n\n
A ka pasur jet\u00eb n\u00eb Mars?<\/p>\n\n\n\n
Gjetjet e reja mb\u00ebshtesin teorin\u00eb se Marsi i hersh\u00ebm kishte p\u00ebrb\u00ebr\u00ebsit dhe kushtet e nevojshme p\u00ebr t\u00eb mb\u00ebshtetur jet\u00ebn. Megjithat\u00eb, ato nuk provojn\u00eb se jeta ka ekzistuar ndonj\u00ebher\u00eb n\u00eb k\u00ebt\u00eb planet.<\/p>\n\n\n\n
Lee Sapper, bashkautor i studimit dhe studiues n\u00eb Qendr\u00ebn K\u00ebrkimore Ames t\u00eb NASA-s dhe Institutin BAER n\u00eb Kaliforni, theksoi se p\u00ebrb\u00ebrja kimike e meteoritit sugjeron se ai ndryshon nga meteorit\u00ebt e tjer\u00eb marsian\u00eb t\u00eb njohur.<\/p>\n\n\n\n
Shkenc\u00ebtar\u00ebt mendojn\u00eb se shk\u00ebmbi mund t\u00eb ket\u00eb ardhur nga mal\u00ebsit\u00eb jugore t\u00eb Marsit, ndoshta nga pellgu Hellas, nj\u00eb prej kratereve m\u00eb t\u00eb m\u00ebdha t\u00eb krijuara nga p\u00ebrplasjet n\u00eb sip\u00ebrfaqen e planetit.<\/p>\n\n\n\n
Historia e tij p\u00ebrfundoi n\u00eb Tok\u00eb pas nj\u00eb udh\u00ebtimi t\u00eb gjat\u00eb. Nj\u00eb p\u00ebrplasje n\u00eb sip\u00ebrfaqen e Marsit e shk\u00ebputi shk\u00ebmbin nga planeti dhe e d\u00ebrgoi n\u00eb hap\u00ebsir\u00eb. M\u00eb pas, ai p\u00ebrshkoi hap\u00ebsir\u00ebn derisa trajektorja e tij u kryq\u00ebzua me at\u00eb t\u00eb Tok\u00ebs, hyri n\u00eb atmosfer\u00eb dhe p\u00ebrfundoi n\u00eb shkret\u00ebtir\u00ebn e Saharas\u00eb.<\/p>\n\n\n\n
Shkenc\u00ebtar\u00ebt nuk kan\u00eb arritur ende t\u00eb p\u00ebrcaktojn\u00eb se kur ndodhi sakt\u00ebsisht ky udh\u00ebtim. Studimi, i botuar n\u00eb revist\u00ebn shkencore Science, ofron t\u00eb dh\u00ebna t\u00eb reja p\u00ebr historin\u00eb e hershme t\u00eb Marsit dhe p\u00ebr kushtet q\u00eb mund t\u00eb ken\u00eb ekzistuar n\u00eb t\u00eb, p\u00ebrpara se planeti t\u00eb shnd\u00ebrrohej n\u00eb bot\u00ebn e ftoht\u00eb dhe t\u00eb that\u00eb q\u00eb njohim sot.<\/p>\n","protected":false},"excerpt":{"rendered":"
Nj\u00eb meteorit i zbuluar n\u00eb vitin 2022 n\u00eb shkret\u00ebtir\u00ebn e Saharas\u00eb, n\u00eb Mali, \u00ebsht\u00eb formuar t\u00eb pakt\u00ebn 4.1 miliard\u00eb vjet m\u00eb par\u00eb n\u00eb koren e Marsit, duke u konsideruar si m\u00eb i vjetri nd\u00ebr 435 meteorit\u00ebt marsian\u00eb t\u00eb gjetur n\u00eb Tok\u00eb deri m\u00eb sot. Sipas shkenc\u00ebtar\u00ebve, analiza e meteoritit, t\u00eb quajtur Teghaza 001, ka zbuluar […]<\/p>\n","protected":false},"author":2,"featured_media":24316,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-24313","post","type-post","status-publish","format-standard","has-post-thumbnail","category-jeta"],"yoast_head":"\n