{"id":4918,"date":"2016-05-12T07:19:42","date_gmt":"2016-05-12T00:19:42","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=4918"},"modified":"2017-10-02T07:31:38","modified_gmt":"2017-10-02T00:31:38","slug":"nasa-phat-hien-ra-nguyen-tu-oxy-trong-khi-quyen-sao-hoa-sau-40-nam-tim-kiem","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/nasa-phat-hien-ra-nguyen-tu-oxy-trong-khi-quyen-sao-hoa-sau-40-nam-tim-kiem\/","title":{"rendered":"NASA ph\u00e1t hi\u1ec7n ra nguy\u00ean t\u1eed oxy trong kh\u00ed quy\u1ec3n sao H\u1ecfa sau 40 n\u0103m t\u00ecm ki\u1ebfm"},"content":{"rendered":"

L\u1ea7n \u0111\u1ea7u ti\u00ean trong su\u1ed1t 40 n\u0103m nghi\u00ean c\u1ee9u, cu\u1ed1i c\u00f9ng NASA c\u0169ng ph\u00e1t hi\u1ec7n ra nguy\u00ean t\u1eed nguy\u00ean t\u1ed1 Oxy trong b\u1ea7u kh\u00ed quy\u1ec3n c\u1ee7a sao H\u1ecfa nh\u1edd v\u00e0o \u0111\u00e0i thi\u00ean v\u0103n h\u1ed3ng ngo\u1ea1i ( SOFIA) tr\u00ean m\u1ed9t chi\u1ebfc m\u00e1y bay \u1edf t\u1ea7ng b\u00ecnh l\u01b0u c\u00e1ch m\u1eb7t \u0111\u1ea5t 13,7 km. \u0110\u00e2y ch\u00ednh l\u00e0 “ph\u00e1t hi\u1ec7n l\u1edbn” m\u00e0 trong su\u1ed1t tu\u1ea7n r\u1ed3i h\u1ecd \u0111\u00e3 nh\u1eafc t\u1edbi v\u00e0 m\u1eb7c d\u00f9 l\u01b0\u1ee3ng oxy ch\u1ec9 b\u1eb1ng 1 n\u1eeda so v\u1edbi d\u1ef1 \u0111o\u00e1n nh\u01b0ng n\u00f3 gi\u00fap c\u00e1c nh\u00e0 thi\u00ean v\u0103n h\u1ecdc c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh r\u00f5 v\u1ec1 \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a kh\u00ed quy\u1ec3n sao H\u1ecfa, c\u1ee7ng c\u1ed1 cho tham v\u1ecdng \u0111\u01b0a con ng\u01b0\u1eddi l\u00ean \u0111\u00f3 \u0111\u1ecbnh c\u01b0 trong t\u01b0\u01a1ng lai.<\/strong><\/p>\n

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Th\u1eadt ra c\u00e1ch \u0111\u00e2y h\u01a1n 40 n\u0103m, trong s\u1ee9 m\u1ea1ng quan s\u00e1t kh\u00ed quy\u1ec3n sao H\u1ecfa Viking v\u00e0 Mariner v\u00e0o nh\u1eefng n\u0103m 1970, NASA \u0111\u00e3 quan s\u00e1t \u0111\u01b0\u1ee3c c\u00e1c nguy\u00ean t\u1eed nguy\u00ean t\u1ed1 oxy v\u00e0 m\u00e3i cho t\u1edbi b\u00e2y gi\u1edd th\u00ec \u0111i\u1ec1u \u0111\u00f3 m\u1edbi \u0111\u01b0\u1ee3c l\u1eb7p l\u1ea1i. T\u1ea1i sao l\u1ea1i m\u1ea5t kho\u1ea3ng th\u1eddi gian qu\u00e1 l\u00e2u nh\u01b0 th\u1ebf? “T\u00ecnh y\u00eau thi\u00ean v\u0103n thi\u00ean v\u0103n c\u1ee7a c\u00e1c nh\u00e0 khoa h\u1ecdc kh\u00f4ng c\u00f3 l\u1ed7i, l\u1ed7i n\u1eb1m \u1edf b\u1ea7u tr\u1eddi xanh c\u1ee7a Tr\u00e1i \u0110\u1ea5t.”<\/p>\n

Nh\u00e0 khoa h\u1ecdc thu\u1ed9c d\u1ef1 \u00e1n SOFIA, Pamela Marcum cho bi\u1ebft: “Nguy\u00ean t\u1eed oxy tr\u00ean sao H\u1ecfa x\u01b0a gi\u1edd n\u1ed5i ti\u1ebfng l\u00e0 kh\u00f3 \u0111o l\u01b0\u1eddng, quan s\u00e1t. \u0110\u1ec3 quan s\u00e1t \u0111\u01b0\u1ee3c b\u01b0\u1edbc s\u00f3ng h\u1ed3ng ngo\u1ea1i FIR trong qu\u00e1 tr\u00ecnh ph\u00e1t hi\u1ec7n ph\u00e2n t\u1eed oxy, c\u00e1c nh\u00e0 khoa h\u1ecdc ph\u1ea3i v\u01b0\u1ee3t qua \u0111\u1ed9 cao c\u1ee7a kh\u00ed quy\u1ec3n Tr\u00e1i \u0110\u1ea5t v\u00e0 s\u1eed d\u1ee5ng nh\u1eefng d\u1ee5ng c\u1ee5 r\u1ea5t nh\u1ea1y c\u1ea3m m\u00e0 trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y ch\u00ednh l\u00e0 ph\u1ed5 k\u1ebf. SOFIA l\u00e0 thi\u1ebft b\u1ecb th\u1ecfa c\u1ea3 2 \u0111i\u1ec1u ki\u1ec7n n\u00e0y.”<\/p>\n

V\u00e2ng, c\u00e1i m\u00e0 c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u ph\u1ea3i gi\u1ea3i quy\u1ebft trong nhi\u1ec1u ch\u1ee5c n\u0103m qua ch\u00ednh l\u00e0 v\u01b0\u1ee3t qua c\u00e1c tr\u1edf ng\u1ea1i g\u00e2y n\u00ean b\u1edfi b\u00e2u kh\u00ed quy\u1ec3n d\u00e0y \u0111\u1eb7c, \u1ea9m \u01b0\u1edbt. V\u00e0 \u0111\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 ti\u1ebfn h\u00e0nh m\u1ed9t lo\u1ea1t c\u00e1c gi\u1ea3i ph\u00e1p kh\u00e1c nhau (bao g\u1ed3m c\u1ea3 d\u00f9ng m\u1ed9t ng\u00f4i sao gi\u1ea3 b\u1eb1ng laser m\u00e0 ch\u00fang ta \u0111\u00e3 bi\u1ebft c\u00e1ch \u0111\u00e2y kh\u00f4ng l\u00e2u) v\u00e0 SOFIA c\u0169ng l\u00e0 m\u1ed9t trong s\u1ed1 \u0111\u00f3.<\/p>\n

Th\u1eadt ra SOFIA l\u00e0 m\u1ed9t chi\u1ebfc m\u00e1y bay l\u1edbn – m\u1ed9t chi\u1ebfc ph\u1ea3n l\u1ef1c Boeing 747SP – v\u00e0 tr\u00ean \u0111\u00f3 c\u00f3 m\u1ed9t k\u00ednh thi\u00ean v\u0103n \u0111\u01b0\u1eddng k\u00ednh 254 cm, lu\u00f4n l\u01b0\u1edbt \u1edf g\u1ea7n nh\u01b0 ph\u00eda tr\u00ean b\u1ea7u kh\u00ed quy\u1ec3n Tr\u00e1i \u0110\u1ea5t \u0111\u1ec1 ghi l\u1ea1o nh\u1eefng h\u00ecnh \u1ea3nh r\u00f5 r\u00e0ng h\u01a1n. B\u00ean c\u1ea1nh l\u1ee3i th\u1ebf v\u1ec1 \u0111\u1ed9 cao, c\u00e1c thi\u1ebft b\u1ecb c\u1ee7a SOFIA c\u0169ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u1edbi \u0111\u1ed9 nh\u1ea1y c\u1ef1c cao, c\u00f3 kh\u1ea3 n\u0103ng lo\u1ea1i b\u1ecf nh\u1eefng y\u1ebfu t\u1ed1 g\u00e2y nhi\u1ec5u b\u1edfi t\u1ea7ng kh\u00ed quy\u1ec3n v\u00e0 gi\u00fap c\u00e1c nh\u00e0 khoa h\u1ecdc th\u1ef1c hi\u1ec7n c\u00e1c t\u00ednh to\u00e1n ch\u00ednh x\u00e1c h\u01a1n.<\/p>\n

Cu\u1ed1i c\u00f9ng nh\u1edd t\u1ea5t c\u1ea3 \u0111i\u1ec1u \u0111\u00f3, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 x\u00e1c t\u00edn \u0111\u01b0\u1ee3c m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c nh\u1ea5t c\u00f3 th\u1ec3 v\u1ec1 l\u01b0\u1ee3ng oxy tr\u00ean t\u1ea7ng trung l\u01b0u c\u1ee7a kh\u00ed quy\u1ec3n sao H\u1ecfa v\u00e0 h\u1ecd cho bi\u1ebft r\u1eb1ng l\u01b0\u1ee3ng oxy \u0111o \u0111\u01b0\u1ee3c l\u00e0 th\u1ea5p h\u01a1n so v\u1edbi d\u1ef1 ki\u1ebfn. B\u1edfi th\u1ebf, c\u00e1c nh\u00e0 khoa h\u1ecdc s\u1ebd ti\u1ebfp t\u1ee5c s\u1eed d\u1ee5ng SOFIA \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh l\u01b0\u1ee3ng oxy t\u1ea1i nhi\u1ec1u khu v\u1ef1c kh\u00e1c tr\u00ean sao H\u1ecfa nh\u1eb1m \u0111\u1ea3m b\u1ea3o con s\u1ed1 n\u00e0y mang t\u00ednh \u0111\u1ea1i di\u1ec7n chung nh\u1ea5t. D\u00f9 sao \u0111i n\u1eefa, \u0111\u00e2y v\u1eabn l\u00e0 m\u1ed9t ph\u00e1t hi\u1ec7n l\u1edbn gi\u00fap t\u0103ng c\u01b0\u1eddng hi\u1ec3u bi\u1ebft v\u1ec1 sao H\u1ecfa, n\u01a1i \u0111\u01b0\u1ee3c cho l\u00e0 ng\u00f4i nh\u00e0 th\u1ee9 2 c\u1ee7a nh\u00e2n lo\u1ea1i sau Tr\u00e1i \u0110\u1ea5t v\u00e0 n\u00f3 kh\u00f4ng ch\u1ec9 c\u1ee7ng c\u1ed1 cho tham v\u1ecdng m\u1ed9t ng\u00e0y n\u00e0o \u0111\u00f3 con ng\u01b0\u1eddi \u0111\u1ecbnh c\u01b0 tr\u00ean \u0111\u00e2y, m\u00e0 c\u00f2n \u0111\u1ea1i di\u1ec7n cho s\u1ef1 ti\u1ebfn b\u1ed9 v\u00e0 ph\u00e1t tri\u1ec3n kh\u00f4ng ng\u1eebng c\u1ee7a khoa h\u1ecdc trong th\u1eddi \u0111\u1ea1i ng\u00e0y nay.<\/p>\n

Tham kh\u1ea3o NASA\u200b<\/em><\/p>\n

Ngu\u1ed3n tinhte.vn<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

L\u1ea7n \u0111\u1ea7u ti\u00ean trong su\u1ed1t 40 n\u0103m nghi\u00ean c\u1ee9u, cu\u1ed1i c\u00f9ng NASA c\u0169ng ph\u00e1t hi\u1ec7n ra nguy\u00ean t\u1eed nguy\u00ean t\u1ed1 Oxy trong b\u1ea7u kh\u00ed quy\u1ec3n c\u1ee7a sao H\u1ecfa nh\u1edd v\u00e0o \u0111\u00e0i thi\u00ean v\u0103n h\u1ed3ng ngo\u1ea1i ( SOFIA) tr\u00ean m\u1ed9t chi\u1ebfc m\u00e1y bay \u1edf t\u1ea7ng b\u00ecnh l\u01b0u c\u00e1ch m\u1eb7t \u0111\u1ea5t 13,7 km. \u0110\u00e2y ch\u00ednh l\u00e0 “ph\u00e1t […]<\/p>\n","protected":false},"author":17,"featured_media":4927,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-4918","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/4918","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=4918"}],"version-history":[{"count":2,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/4918\/revisions"}],"predecessor-version":[{"id":4928,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/4918\/revisions\/4928"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/4927"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=4918"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=4918"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=4918"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}