{"id":665357,"date":"2025-12-09T06:56:03","date_gmt":"2025-12-09T06:56:03","guid":{"rendered":"https:\/\/microscopemedia.com\/?p=665357"},"modified":"2025-12-09T06:56:03","modified_gmt":"2025-12-09T06:56:03","slug":"sunt-prea-multi-sateliti-pe-orbita-pamantului-criza-care-ameninta-viitorul-stiintei","status":"publish","type":"post","link":"https:\/\/microscopemedia.com\/?p=665357","title":{"rendered":"Sunt prea mul\u021bi sateli\u021bi pe orbita P\u0103m\u00e2ntului. Criza care amenin\u021b\u0103 viitorul \u0219tiin\u021bei"},"content":{"rendered":"<div><img decoding=\"async\" src=\"https:\/\/microscopemedia.com\/wp-content\/uploads\/2025\/12\/sunt-prea-multi-sateliti-pe-orbita-pamantului-criza-care-ameninta-viitorul-stiintei.png\" class=\"ff-og-image-inserted\"><\/div>\n<p id=\"p-0\">La aproape \u0219apte decenii de la lansarea Sputnik 1, primul satelit artificial, spa\u021biul din proximitatea Terrei g\u0103zduie\u0219te un num\u0103r impresionant de obiecte. Din cei peste 20.000 de sateli\u021bi trimi\u0219i pe orbit\u0103 din 1957, aproximativ 13.600 se afl\u0103 \u00eenc\u0103 acolo. Din ace\u0219tia, aproape 11.000 sunt \u00eenc\u0103 opera\u021bionali.<br \/>O bun\u0103 parte din aparatele ce orbiteaz\u0103 planeta, \u00eei apar\u021bin lui Elon Musk. Re\u021beaua Starlink a SpaceX include deja peste 8.000 de sateli\u021bi pentru internet. Ei sunt amplasa\u021bi pe orbite joase la circa 550 km altitudine, iar lans\u0103rile continu\u0103 \u00een ritm intens.<\/p>\n<h2 id=\"chapter-0\">Impactul asupra astronomiei<\/h2>\n<p id=\"p-1\">Cercet\u0103torii de la Ames Research Center (NASA) au atras aten\u021bia c\u0103 urmele luminoase produse de sateli\u021bi pot afecta grav calitatea imaginilor captate de telescoapele spa\u021biale \u0219i terestre. Studiul publicat \u00een Nature arat\u0103 c\u0103:<\/p>\n<ul>\n<li>p\u00e2n\u0103 la 96% din fotografiile \u0219tiin\u021bifice pot fi influen\u021bate negativ;<\/li>\n<li>\u00een anumite cazuri, o singur\u0103 imagine poate prezenta p\u00e2n\u0103 la 92 de urme de satelit;<\/li>\n<li>\u00eentr-un scenariu cu 1 milion de sateli\u021bi, imaginile ar putea fi traversate de peste 160 de astfel de urme.<\/li>\n<\/ul>\n<p id=\"p-2\">Av\u00e2nd \u00een vedere c\u0103 o mare parte din informa\u021biile despre Univers se ob\u021bin prin observa\u021bii astronomice, cercet\u0103torii consider\u0103 aceast\u0103 problem\u0103 deosebit de grav\u0103.<\/p>\n<p id=\"p-3\">SpaceX inten\u021bioneaz\u0103 s\u0103 extind\u0103 \u201econstela\u021bia\u201d Starlink la circa 34.000 de sateli\u021bi \u00een urm\u0103torii ani. La nivel global, num\u0103rul total ar putea dep\u0103\u0219i 60.000 p\u00e2n\u0103 \u00een 2030. Unele proiec\u021bii indic\u0103 chiar posibilitatea de a ajunge la 500.000 de sateli\u021bi artificiali p\u00e2n\u0103 \u00een 2050.<br \/>Aceast\u0103 cre\u0219tere este favorizat\u0103 de sc\u0103derea costurilor de lansare, datorit\u0103 rachetelor reutilizabile dezvoltate de SpaceX.<\/p>\n<h2 id=\"chapter-1\">Sateli\u021bi \u00een num\u0103r uria\u0219, testele NASA \u0219i riscurile asociate<\/h2>\n<p id=\"p-4\">Speciali\u0219tii au analizat efectele prolifer\u0103rii sateli\u021bilor asupra telescoapelor Hubble, SPHEREx, Xuntian \u0219i ARRAKIHS. Coordonatorul studiului, Alejandro Borlaff, avertizeaz\u0103: \u201eDac\u0103 ritmul actual se men\u021bine, vom ob\u021bine mai pu\u021bine descoperiri \u0219i imagini de calitate inferioar\u0103, ceea ce se va traduce printr-un nivel mai sc\u0103zut de cunoa\u0219tere.\u201d<\/p>\n<p id=\"p-5\">Printre riscurile majore se num\u0103r\u0103 confuzia sateli\u021bilor cu asteroizi poten\u021bial periculo\u0219i pentru P\u0103m\u00e2nt \u0219i dificultatea de a detecta fenomene cosmice importante, cum ar fi exploziile de raze gamma, esen\u021biale pentru \u00een\u021belegerea <a href=\"https:\/\/www.mediafax.ro\/stiinta-sanatate\/secretul-ascuns-al-lunii-o-pata-portocalie-descoperita-in-ultima-misiune-a-nasa-a-ascuns-un-mister-dezlegat-abia-acum-23654807\" target=\"_blank\" rel=\"noopener\">originii Universului<\/a>.<\/p>\n<p id=\"p-6\">Cotidianul <a href=\"https:\/\/www.lastampa.it\/tecnologia\/rubriche\/tech-away\/2025\/12\/09\/news\/ci_sono_troppi_satelliti_in_orbita_ed_e_un_problema_per_la_scienza-425024773\/?ref=LSHRT-TEC-P-S2-T1\" target=\"_blank\" rel=\"noopener\">La Stampa<\/a> scrie c\u0103 pe l\u00e2ng\u0103 sateli\u021bii activi, orbita Terrei con\u021bine peste 40.000 de fragmente mari de de\u0219euri \u0219i peste un milion de resturi mici, care pot afecta at\u00e2t siguran\u021ba misiunilor, c\u00e2t \u0219i observarea astronomic\u0103.<br \/>NASA a solicitat SpaceX un punct de vedere cu privire la aceste efecte, \u00eens\u0103 compania nu a r\u0103spuns.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La aproape \u0219apte decenii de la lansarea Sputnik 1, primul satelit artificial, spa\u021biul din proximitatea Terrei g\u0103zduie\u0219te un num\u0103r impresionant de obiecte. Din cei peste 20.000 de sateli\u021bi trimi\u0219i pe &hellip; <a href=\"https:\/\/microscopemedia.com\/?p=665357\" class=\"more-link\">Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":665358,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"Default","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/posts\/665357"}],"collection":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=665357"}],"version-history":[{"count":0,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/posts\/665357\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/media\/665358"}],"wp:attachment":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=665357"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=665357"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=665357"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}