{"id":4512,"date":"2015-10-29T06:24:07","date_gmt":"2015-10-28T23:24:07","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=4512"},"modified":"2017-10-02T08:01:32","modified_gmt":"2017-10-02T01:01:32","slug":"lan-dau-tien-phat-hien-oxy-tren-sao-choi","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/lan-dau-tien-phat-hien-oxy-tren-sao-choi\/","title":{"rendered":"L\u1ea7n \u0111\u1ea7u ti\u00ean ph\u00e1t hi\u1ec7n oxy tr\u00ean sao ch\u1ed5i"},"content":{"rendered":"

Robot th\u0103m d\u00f2 sao ch\u1ed5i 67P Churyumov-Gerasimenko l\u1ea7n \u0111\u1ea7u ti\u00ean ph\u00e1t hi\u1ec7n oxy t\u1ed3n t\u1ea1i trong \u0111\u00e1m m\u00e2y kh\u00ed bao quanh sao ch\u1ed5i, khi\u1ebfn gi\u1edbi khoa h\u1ecdc b\u1ea5t ng\u1edd v\u00e0 \u0111\u1eb7t gi\u1ea3 thuy\u1ebft m\u1edbi v\u1ec1 s\u1ef1 h\u00ecnh th\u00e0nh v\u00e0 ti\u1ebfn h\u00f3a c\u1ee7a h\u1ec7 M\u1eb7t Tr\u1eddi.<\/strong><\/p>\n

\"\"<\/p>\n

Sao Ch\u1ed5i 67P Churyumov-Gerasimenko ch\u1ee5p t\u1eeb t\u00e0u v\u0169 tr\u1ee5 Rosetta h\u00f4m 3\/5. \u1ea2nh: ESA<\/p>\n

Theo IB Times, d\u1eef li\u1ec7u robot th\u0103m d\u00f2 Philae c\u1ee7a C\u01a1 quan V\u0169 tr\u1ee5 ch\u00e2u \u00c2u (ESA) \u0111\u00e1p xu\u1ed1ng sao ch\u1ed5i 67P Churyumov-Gerasimenko 67P th\u00e1ng 11 n\u0103m ngo\u00e1i g\u1eedi v\u1ec1 cho th\u1ea5y c\u00f3 oxy trong c\u00e1c \u0111\u00e1m m\u00e2y kh\u00ed bao quanh sao ch\u1ed5i n\u00e0y. \u0110\u00e2y l\u00e0 l\u1ea7n \u0111\u1ea7u ti\u00ean c\u00e1c nh\u00e0 khoa h\u1ecdc ph\u00e1t hi\u1ec7n c\u00f3 O2 tr\u00ean sao ch\u1ed5i, v\u00e0 l\u00e0 l\u1ea7n th\u1ee9 ba ph\u00e1t hi\u1ec7n ph\u00e2n t\u1eed oxy t\u1ed3n t\u1ea1i ngo\u00e0i h\u1ec7 M\u1eb7t Tr\u1eddi. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7t ra c\u00e2u h\u1ecfi m\u1edbi v\u1ec1 c\u00e1ch th\u1ee9c h\u1ec7 M\u1eb7t Tr\u1eddi h\u00ecnh th\u00e0nh v\u00e0 ti\u1ebfn h\u00f3a.<\/p>\n

“\u0110\u00e2y l\u00e0 ph\u00e1t hi\u1ec7n \u0111\u00e1ng ng\u1ea1c nhi\u00ean nh\u1ea5t m\u00e0 ch\u00fang t\u00f4i t\u1eebng th\u1ea5y tr\u00ean 67P v\u00ec ch\u00fang t\u00f4i kh\u00f4ng ng\u1edd s\u1ebd t\u00ecm th\u1ea5y ph\u00e2n t\u1eed oxy”, Kathrin Altwegg, \u0111\u1ea1i h\u1ecdc Bern, t\u00e1c gi\u1ea3 ch\u00ednh c\u1ee7a nghi\u00ean c\u1ee9u cho bi\u1ebft. Nghi\u00ean c\u1ee9u c\u00f4ng b\u1ed1 tr\u00ean t\u1ea1p ch\u00ed Nature h\u00f4m nay.<\/p>\n

Altwegg cho bi\u1ebft, ban \u0111\u1ea7u, nh\u00f3m nghi\u00ean c\u1ee9u “c\u1ed1 g\u1eafng ph\u1ee7 nh\u1eadn” ph\u00e1t hi\u1ec7n n\u00e0y. Nh\u01b0ng cu\u1ed1i c\u00f9ng, sau khi ch\u1eafc ch\u1eafn n\u00f3 \u0111\u00fang, h\u1ecd b\u1eaft \u0111\u1ea7u t\u00ecm hi\u1ec3u c\u00e1ch O2 t\u1ed3n t\u1ea1i \u1edf \u0111\u00f3.<\/p>\n

Andre Bieler, \u0111\u1ea1i h\u1ecdc Michigan cho bi\u1ebft, quan s\u00e1t li\u00ean t\u1ee5c c\u1ee7a nh\u00f3m cho th\u1ea5y t\u1ef7 l\u1ec7 O2 duy tr\u00ec li\u00ean t\u1ee5c qua nhi\u1ec1u th\u00e1ng. Khi sao ch\u1ed5i m\u1ea5t \u0111i l\u1edbp v\u1ecf ngo\u00e0i, l\u1edbp v\u1ecf m\u1edbi l\u1ed9 ra, nh\u01b0ng t\u1ef7 l\u1ec7 O2 v\u1eabn \u1ed5n \u0111\u1ecbnh, n\u00ean c\u00f3 th\u1ec3 suy ra, O2 c\u00f3 m\u1eb7t \u1edf to\u00e0n b\u1ed9 sao ch\u1ed5i.<\/p>\n

\u0110i\u1ec1u n\u00e0y \u0111\u1eb7t ra c\u00e2u h\u1ecfi quan tr\u1ecdng, l\u00e0m th\u1ebf n\u00e0o m\u00e0 O2 l\u1ea1i \u1edf \u0111\u00f3 \u0111\u01b0\u1ee3c, v\u00e0 t\u1ea1i sao c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i trong th\u1eddi gian d\u00e0i nh\u01b0 v\u1eady. C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u01b0a ra hai gi\u1ea3 thuy\u1ebft, m\u1ed9t li\u00ean quan \u0111\u1ebfn ph\u00e2n ly ph\u00f3ng x\u1ea1 (radiolysis), n\u01a1i b\u1ee9c x\u1ea1 n\u0103ng l\u01b0\u1ee3ng cao ph\u00e1 v\u1ee1 li\u00ean k\u1ebft trong b\u0103ng chuy\u1ec3n H2O th\u00e0nh O2; m\u1ed9t gi\u1ea3 thuy\u1ebft kh\u00e1c l\u00e0 khi sao ch\u1ed5i m\u1edbi h\u00ecnh th\u00e0nh, O2 \u0111\u00e3 t\u00edch h\u1ee3p v\u00e0o trong \u0111\u00f3 v\u00e0 \u0111\u01b0\u1ee3c l\u00e0m l\u1ea1nh nhanh ch\u00f3ng.<\/p>\n

B\u1ea5t lu\u1eadn l\u00e0m th\u1ebf n\u00e0o m\u00e0 O2 xu\u1ea5t hi\u1ec7n v\u00e0 t\u1ed3n t\u1ea1i \u0111\u01b0\u1ee3c \u1edf sao ch\u1ed5i, c\u00e1c nh\u00e0 khoa h\u1ecdc cho r\u1eb1ng, ph\u00e1t hi\u1ec7n n\u00e0y ch\u1ee9ng t\u1ecf hi\u1ec3u bi\u1ebft hi\u1ec7n t\u1ea1i c\u1ee7a ch\u00fang ta v\u1ec1 c\u00e1ch h\u1ec7 M\u1eb7t Tr\u1eddi h\u00ecnh th\u00e0nh c\u1ea7n \u0111\u01b0\u1ee3c xem x\u00e9t l\u1ea1i, v\u00ec m\u00f4 h\u00ecnh h\u00ecnh th\u00e0nh h\u1ec7 M\u1eb7t Tr\u1eddi hi\u1ec7n t\u1ea1i kh\u00f4ng cho ph\u00e9p tinh th\u1ec3 b\u0103ng ch\u1ee9a oxy.<\/p>\n

“M\u1ed9t khi b\u0103ng \u0111\u1ebfn g\u1ea7n M\u1eb7t Tr\u1eddi, n\u00f3 s\u1ebd b\u1ed1c h\u01a1i v\u00e0 m\u1ea5t oxy ngay l\u1eadp t\u1ee9c. V\u1eadt ch\u1ea5t s\u1ebd kh\u00f4ng bao gi\u1edd pha tr\u1ed9n \u0111\u01b0\u1ee3c”, Altwegg n\u00f3i. “M\u00f4 h\u00ecnh d\u1eef li\u1ec7u v\u1ec1 h\u1ec7 M\u1eb7t Tr\u1eddi hi\u1ec7n n\u00e0y kh\u00f4ng d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c vi\u1ec7c \u0111\u00f3 x\u1ea3y ra trong \u0111i\u1ec1u ki\u1ec7n n\u00e0o”.<\/p>\n

“Ph\u00e1t hi\u1ec7n n\u00e0y cho th\u1ea5y, qu\u00e1 tr\u00ecnh h\u1ec7 M\u1eb7t Tr\u1eddi ti\u1ebfn h\u00f3a c\u00f3 th\u1ec3 r\u1ea5t nh\u1eb9 nh\u00e0ng, tinh th\u1ec3 b\u0103ng c\u00f3 l\u1ebd ch\u01b0a bao gi\u1edd b\u1ecb n\u00f3ng \u0111\u1ebfn m\u1ee9c tan ch\u1ea3y. Sao ch\u1ed5i l\u00e0 nh\u1eefng thi\u00ean th\u1ec3 \u00edt ti\u1ebfn h\u00f3a nh\u1ea5t trong h\u1ec7 M\u1eb7t Tr\u1eddi v\u00e0 gi\u1edd ch\u00fang ta c\u00f3 b\u1eb1ng ch\u1ee9ng cho th\u1ea5y, ch\u00ed \u00edt l\u00e0 m\u1ed9t ph\u1ea7n sao ch\u1ed5i tr\u00ean th\u1ef1c t\u1ebf c\u00f3 th\u1ec3 c\u00f3 tu\u1ed5i \u0111\u1eddi l\u00e2u h\u01a1n h\u1ec7 M\u1eb7t Tr\u1eddi, khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh nh\u1eefng v\u1eadt th\u1ec3 r\u1ea5t hoang s\u01a1”.<\/p>\n

C\u00e1c nh\u00e0 khoa h\u1ecdc cho bi\u1ebft, h\u1ecd s\u1ebd l\u1eadt l\u1ea1i d\u1eef li\u1ec7u v\u1ec1 sao ch\u1ed5i Halley c\u00e1ch \u0111\u00e2y 30 n\u0103m \u0111\u1ec3 t\u00ecm hi\u1ec3u xem c\u00f3 ph\u00e1t hi\u1ec7n oxy tr\u00ean \u0111\u00f3 kh\u00f4ng.<\/p>\n

H\u1ed3ng H\u1ea1nh<\/em><\/strong><\/p>\n

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

Robot th\u0103m d\u00f2 sao ch\u1ed5i 67P Churyumov-Gerasimenko l\u1ea7n \u0111\u1ea7u ti\u00ean ph\u00e1t hi\u1ec7n oxy t\u1ed3n t\u1ea1i trong \u0111\u00e1m m\u00e2y kh\u00ed bao quanh sao ch\u1ed5i, khi\u1ebfn gi\u1edbi khoa h\u1ecdc b\u1ea5t ng\u1edd v\u00e0 \u0111\u1eb7t gi\u1ea3 thuy\u1ebft m\u1edbi v\u1ec1 s\u1ef1 h\u00ecnh th\u00e0nh v\u00e0 ti\u1ebfn h\u00f3a c\u1ee7a h\u1ec7 M\u1eb7t Tr\u1eddi. Sao Ch\u1ed5i 67P Churyumov-Gerasimenko ch\u1ee5p t\u1eeb t\u00e0u v\u0169 tr\u1ee5 Rosetta […]<\/p>\n","protected":false},"author":17,"featured_media":4983,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-4512","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\/4512","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=4512"}],"version-history":[{"count":2,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/4512\/revisions"}],"predecessor-version":[{"id":4984,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/4512\/revisions\/4984"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/4983"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=4512"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=4512"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=4512"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}