<\/p>\n\n\n\n
NASA\u2019n\u0131n 1977 y\u0131l\u0131nda f\u0131rlatt\u0131\u011f\u0131 Voyager 1 ve Voyager 2 uzay sondalar\u0131, 47 y\u0131ll\u0131k operasyonel s\u00fcre\u00e7lerinin ard\u0131ndan enerji k\u0131s\u0131tlamalar\u0131 nedeniyle bilimsel enstr\u00fcmanlar\u0131n\u0131n bir k\u0131sm\u0131n\u0131 kapatmaya ba\u015flad\u0131. \u015eu anda y\u0131ld\u0131zlararas\u0131 uzayda bulunan bu sondalar, insanl\u0131k taraf\u0131ndan \u00fcretilmi\u015f en uzak nesneler olarak, D\u00fcnya\u2019dan milyarlarca kilometre mesafede veri toplamaya devam ediyor. Ancak, g\u00fc\u00e7 \u00fcretimindeki azalma, misyonun s\u00fcrd\u00fcr\u00fclebilirli\u011fi i\u00e7in \u00f6nemli kararlar\u0131n al\u0131nmas\u0131n\u0131 zorunlu k\u0131l\u0131yor.<\/p>\n\n\n\n
NASA\u2019n\u0131n Jet Propulsion Laboratuvar\u0131 (JPL) m\u00fchendisleri, 25 \u015eubat 2025 tarihinde Voyager 1\u2019e kozmik \u0131\u015f\u0131n alt sistemini (Cosmic Ray Subsystem, CRS) devre d\u0131\u015f\u0131 b\u0131rakma komutunu iletti. Voyager 2\u2019nin ise d\u00fc\u015f\u00fck enerjili y\u00fckl\u00fc par\u00e7ac\u0131k cihaz\u0131 (Low-Energy Charged Particle, LECP), 24 Mart 2025\u2019te kapat\u0131lacak. Bu d\u00fczenlemeyle, her iki sonda da aktif durumda yaln\u0131zca \u00fc\u00e7 bilimsel enstr\u00fcmanla operasyonlar\u0131n\u0131 s\u00fcrd\u00fcrecek. F\u0131rlat\u0131ld\u0131\u011f\u0131nda her biri 10 enstr\u00fcmanla donat\u0131lm\u0131\u015f olan Voyager sondalar\u0131, radyoizotop termoelektrik jenerat\u00f6rlerinden (RTG) elde edilen enerjinin y\u0131ll\u0131k yakla\u015f\u0131k 4 watt\u2019l\u0131k azalmas\u0131 nedeniyle bu t\u00fcr optimizasyonlara ihtiya\u00e7 duyuyor. RTG\u2019ler, pl\u00fctonyum-238\u2019in bozunmas\u0131ndan kaynaklanan \u0131s\u0131y\u0131 elektri\u011fe \u00e7evirirken, zamanla etkinlikleri ka\u00e7\u0131n\u0131lmaz \u015fekilde d\u00fc\u015f\u00fcyor.<\/p>\n\n\n\n
Voyager program\u0131, ba\u015flang\u0131\u00e7ta J\u00fcpiter ve Sat\u00fcrn\u2019\u00fcn ayr\u0131nt\u0131l\u0131 g\u00f6zlemlerini ger\u00e7ekle\u015ftirmek \u00fczere tasarlanm\u0131\u015ft\u0131. Ancak, misyon geni\u015fleyerek g\u00fcne\u015f sisteminin d\u0131\u015f s\u0131n\u0131rlar\u0131n\u0131 a\u015fm\u0131\u015f ve heliosferin \u00f6tesine, y\u0131ld\u0131zlararas\u0131 ortama ula\u015fm\u0131\u015ft\u0131r. Voyager 1, D\u00fcnya\u2019dan 25 milyar kilometre (yakla\u015f\u0131k 15 milyar mil) uzakl\u0131kta konumlan\u0131rken, Voyager 2 ise 21 milyar kilometre (13 milyar mil) mesafede bulunuyor. Bu mesafeler, her iki sonday\u0131 da insanl\u0131k tarihindeki en uzak uzay ara\u00e7lar\u0131 haline getiriyor.<\/p>\n\n\n\n
Heliosferin \u00f6tesine ge\u00e7en ilk uzay ara\u00e7lar\u0131 olarak, Voyager sondalar\u0131 y\u0131ld\u0131zlararas\u0131 plazma, manyetik alanlar ve kozmik \u0131\u015f\u0131nlar hakk\u0131nda e\u015fsiz veriler sa\u011flad\u0131. Ancak, enerji tasarrufu amac\u0131yla daha \u00f6nce de \u00e7e\u015fitli enstr\u00fcmanlar devre d\u0131\u015f\u0131 b\u0131rak\u0131lm\u0131\u015ft\u0131; \u00f6rne\u011fin, Voyager 2\u2019nin plazma bilimi enstr\u00fcman\u0131 (Plasma Science, PLS) 2024\u2019te kapat\u0131ld\u0131. Planlara g\u00f6re, 2026\u2019da Voyager 1\u2019in LECP cihaz\u0131 ve Voyager 2\u2019nin CRS enstr\u00fcman\u0131 da devreden \u00e7\u0131kar\u0131lacak.<\/p>\n\n\n\n
NASA uzmanlar\u0131, mevcut enerji t\u00fcketim oranlar\u0131na dayanarak, Voyager sondalar\u0131n\u0131n 2030\u2019lu y\u0131llara kadar en az bir bilimsel enstr\u00fcmanla \u00e7al\u0131\u015fabilece\u011fini \u00f6ng\u00f6r\u00fcyor. \u015eu anda aktif kalan plazma dalga alt sistemi (Plasma Wave Subsystem, PWS) ve manyetometre (MAG), y\u0131ld\u0131zlararas\u0131 ortam\u0131n fiziksel \u00f6zelliklerini incelemeyi s\u00fcrd\u00fcrecek. Bununla birlikte, RTG\u2019lerin g\u00fc\u00e7 \u00fcretimindeki azalma ve olas\u0131 sistem ar\u0131zalar\u0131, bu tahmini etkileyebilecek fakt\u00f6rler aras\u0131nda yer al\u0131yor.<\/p>\n\n\n\n
NASA\u2019dan yap\u0131lan a\u00e7\u0131klamada, \u201cVoyager 1 ve 2, daha \u00f6nce hi\u00e7bir uzay arac\u0131n\u0131n ula\u015fmad\u0131\u011f\u0131 bir b\u00f6lgeyi ara\u015ft\u0131rmaya devam ediyor. Y\u0131ld\u0131zlararas\u0131 uzay\u0131n dinamiklerini anlamam\u0131za katk\u0131lar\u0131, her ge\u00e7en g\u00fcn yeni verilerle zenginle\u015fiyor,\u201d denildi. Bu sondalar, s\u0131n\u0131rl\u0131 kaynaklarla bile bilimsel ke\u015fiflerin s\u0131n\u0131rlar\u0131n\u0131 zorlamaya devam ediyor.<\/p>\n\n\n\n
Voyager misyonu, uzay ara\u015ft\u0131rmalar\u0131n\u0131n dayan\u0131kl\u0131l\u0131k ve adaptasyon kapasitesini ortaya koyan bir \u00f6rnek te\u015fkil ediyor. Enerji y\u00f6netimi stratejileri, sondalar\u0131n operasyonel \u00f6mr\u00fcn\u00fc uzat\u0131rken, y\u0131ld\u0131zlararas\u0131 uzay\u0131n anla\u015f\u0131lmas\u0131na y\u00f6nelik kritik veriler sa\u011flamay\u0131 s\u00fcrd\u00fcr\u00fcyor. \u0130nsanl\u0131\u011f\u0131n uzaydaki izlerini ta\u015f\u0131yan bu ara\u00e7lar, bilimsel miraslar\u0131n\u0131 gelecek nesillere aktarmaya haz\u0131rlan\u0131yor.<\/p>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
NASA\u2019n\u0131n 1977 y\u0131l\u0131nda f\u0131rlatt\u0131\u011f\u0131 Voyager 1 ve Voyager 2 uzay sondalar\u0131, 47 y\u0131ll\u0131k operasyonel s\u00fcre\u00e7lerinin ard\u0131ndan enerji k\u0131s\u0131tlamalar\u0131 nedeniyle bilimsel enstr\u00fcmanlar\u0131n\u0131n bir k\u0131sm\u0131n\u0131 kapatmaya ba\u015flad\u0131. \u015eu anda y\u0131ld\u0131zlararas\u0131 uzayda bulunan bu sondalar, insanl\u0131k taraf\u0131ndan \u00fcretilmi\u015f en uzak nesneler olarak, D\u00fcnya\u2019dan milyarlarca kilometre mesafede veri toplamaya devam ediyor. Ancak, g\u00fc\u00e7 \u00fcretimindeki azalma, misyonun s\u00fcrd\u00fcr\u00fclebilirli\u011fi i\u00e7in \u00f6nemli […]<\/p>\n","protected":false},"author":1,"featured_media":104,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11,21],"tags":[43,39,42,41,40,38],"class_list":["post-103","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-haber","category-uzay-astronomi","tag-bilimveteknolojihaberleri","tag-nasa","tag-radyoizotop-termoelektrik-jenerator","tag-uzay-sondasi","tag-voyager","tag-yildizlararasi-uzay"],"_links":{"self":[{"href":"https:\/\/bilimaktuel.com\/index.php\/wp-json\/wp\/v2\/posts\/103","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bilimaktuel.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bilimaktuel.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bilimaktuel.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bilimaktuel.com\/index.php\/wp-json\/wp\/v2\/comments?post=103"}],"version-history":[{"count":1,"href":"https:\/\/bilimaktuel.com\/index.php\/wp-json\/wp\/v2\/posts\/103\/revisions"}],"predecessor-version":[{"id":105,"href":"https:\/\/bilimaktuel.com\/index.php\/wp-json\/wp\/v2\/posts\/103\/revisions\/105"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bilimaktuel.com\/index.php\/wp-json\/wp\/v2\/media\/104"}],"wp:attachment":[{"href":"https:\/\/bilimaktuel.com\/index.php\/wp-json\/wp\/v2\/media?parent=103"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bilimaktuel.com\/index.php\/wp-json\/wp\/v2\/categories?post=103"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bilimaktuel.com\/index.php\/wp-json\/wp\/v2\/tags?post=103"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}