{"id":8048,"date":"2018-02-02T16:03:44","date_gmt":"2018-02-02T09:03:44","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=8048"},"modified":"2018-02-02T16:03:44","modified_gmt":"2018-02-02T09:03:44","slug":"kham-pha-virus-trong-khong-gian-la-chia-khoa-tim-kiem-su-song-trong-vu-tru","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/kham-pha-virus-trong-khong-gian-la-chia-khoa-tim-kiem-su-song-trong-vu-tru\/","title":{"rendered":"Kh\u00e1m ph\u00e1 virus trong kh\u00f4ng gian l\u00e0 ch\u00eca kh\u00f3a t\u00ecm ki\u1ebfm s\u1ef1 s\u1ed1ng trong v\u0169 tr\u1ee5"},"content":{"rendered":"

\"241
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Theo m\u1ed9t nghi\u00ean c\u1ee9u m\u1edbi, c\u00e1c nh\u00e0 khoa h\u1ecdc tin r\u1eb1ng, ch\u00eca kh\u00f3a \u0111\u1ec3 t\u00ecm ki\u1ebfm s\u1ef1 s\u1ed1ng trong v\u0169 tr\u1ee5 c\u00f3 th\u1ec3 l\u00e0 kh\u00e1m ph\u00e1 virus tr\u00ean c\u00e1c h\u00e0nh tinh ngo\u1ea1i lai, v\u00e0 n\u00f3 s\u1ebd b\u1eaft \u0111\u1ea7u cho m\u1ed9t m\u00f4n h\u1ecdc m\u1edbi v\u00e0 m\u1ed9t k\u1ef7 nguy\u00ean m\u1edbi trong khoa h\u1ecdc.<\/p>\n

 <\/p>\n

Virus nhi\u1ec1u h\u01a1n kho\u1ea3ng 10-100 l\u1ea7n t\u1ea5t c\u1ea3 c\u00e1c sinh v\u1eadt kh\u00e1c tr\u00ean Tr\u00e1i \u0111\u1ea5t v\u00e0 c\u00e1c nh\u00e0 khoa h\u1ecdc n\u00f3i r\u1eb1ng ch\u00fang ta n\u00ean t\u00ecm ki\u1ebfm ch\u00fang trong kh\u00f4ng gian khi m\u00e0 ch\u00fang c\u00f3 th\u1ec3 l\u00e0 nhi\u1ec1u v\u00e0 phong ph\u00fa.<\/p>\n

Nghi\u00ean c\u1ee9u \u0111ang k\u00eau g\u1ecdi x\u00e2y d\u1ef1ng m\u1ed9t m\u00f4n h\u1ecdc ho\u00e0n to\u00e0n m\u1edbi g\u1ecdi l\u00e0 “astroviology” v\u00e0 mu\u1ed1n c\u00e1c nh\u00e0 khoa h\u1ecdc b\u1eaft \u0111\u1ea7u ph\u00e1t tri\u1ec3n c\u00e1c chi\u1ebfn l\u01b0\u1ee3c v\u00e0 c\u00f4ng c\u1ee5 c\u1ea7n thi\u1ebft \u0111\u1ec3 ph\u00e1t hi\u1ec7n virus ngo\u00e0i h\u00e0nh tinh.<\/p>\n

Gi\u00e1o s\u01b0 sinh v\u1eadt h\u1ecdc t\u1ea1i \u0110\u1ea1i h\u1ecdc Portland, Kenneth Stedman n\u00f3i: H\u01a1n m\u1ed9t th\u1ebf k\u1ef7 \u0111\u00e3 tr\u00f4i qua k\u1ec3 t\u1eeb khi ch\u00fang ta ph\u00e1t hi\u1ec7n ra virus l\u1ea7n \u0111\u1ea7u ti\u00ean. B\u01b0\u1edbc v\u00e0o th\u1ebf k\u1ef7 th\u1ee9 hai c\u1ee7a virus h\u1ecdc, ch\u00fang ta c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u h\u01b0\u1edbng s\u1ef1 t\u1eadp trung v\u01b0\u1ee3t ra ngo\u00e0i h\u00e0nh tinh c\u1ee7a ch\u00fang ta.<\/p>\n

Astroviology s\u1ebd k\u1ebft h\u1ee3p nghi\u00ean c\u1ee9u virus v\u1edbi sinh v\u1eadt h\u1ecdc v\u0169 tr\u1ee5 \u0111\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m sinh h\u1ecdc v\u00e0 hi\u1ec3u \u0111\u01b0\u1ee3c virus c\u00f3 th\u1ec3 lan truy\u1ec1n trong kh\u00f4ng gian nh\u01b0 th\u1ebf n\u00e0o.<\/p>\n

Nh\u00ecn chung, m\u1ecdi ng\u01b0\u1eddi \u0111\u1ed3ng \u00fd r\u1eb1ng m\u1ed9t s\u1ed1 lo\u1ea1i vi khu\u1ea9n s\u1ebd l\u00e0 h\u00ecnh th\u1ee9c \u0111\u1ea7u ti\u00ean c\u1ee7a s\u1ef1 s\u1ed1ng \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n tr\u00ean m\u1ed9t h\u00e0nh tinh, m\u1eb7t tr\u0103ng, ho\u1eb7c \u0111\u00e1 kh\u00f4ng gian.<\/p>\n

Tuy nhi\u00ean, c\u00e1c t\u00e1c gi\u1ea3 kh\u1eb3ng \u0111\u1ecbnh, virus c\u0169ng c\u00f3 th\u1ec3 \u0111\u00e3 \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh ti\u1ebfn h\u00f3a tr\u00ean Tr\u00e1i \u0111\u1ea5t.<\/p>\n

C\u00e1c t\u00e1c gi\u1ea3 c\u1ee7a nghi\u00ean c\u1ee9u cho bi\u1ebft: C\u0169ng c\u00f3 b\u1eb1ng ch\u1ee9ng gi\u00e1n ti\u1ebfp \u0111\u00e1ng tin c\u1eady cho th\u1ea5y virus t\u1ed3n t\u1ea1i t\u1eeb c\u1ed5 x\u01b0a. Tuy nhi\u00ean kh\u00f4ng c\u00f3 b\u1eb1ng ch\u1ee9ng tr\u1ef1c ti\u1ebfp, v\u00ec v\u1eady ch\u00fang t\u00f4i \u0111ang l\u00e0m vi\u1ec7c tr\u00ean nh\u1eefng h\u00f3a th\u1ea1ch\/b\u1ea3o qu\u1ea3n virus trong h\u1ed3 s\u01a1 h\u00f3a th\u1ea1ch.<\/p>\n

Virus c\u00f3 th\u1ec3 c\u00f9ng t\u1ed3n t\u1ea1i v\u1edbi c\u00e1c d\u1ea1ng s\u1ed1ng t\u1ebf b\u00e0o t\u1eeb nh\u1eefng giai \u0111o\u1ea1n s\u1edbm nh\u1ea5t c\u1ee7a s\u1ef1 s\u1ed1ng, c\u00f3 th\u1ec3 tr\u1ef1c ti\u1ebfp li\u00ean quan trong \u0111\u00f3, v\u00e0 c\u00f3 \u1ea3nh h\u01b0\u1edfng s\u00e2u s\u1eafc t\u1edbi qu\u00e1 tr\u00ecnh ti\u1ebfn h\u00f3a c\u1ee7a t\u1ebf b\u00e0o.<\/p>\n

Virus l\u00e0 c\u00e1c th\u1ef1c th\u1ec3 duy nh\u1ea5t tr\u00ean tr\u00e1i \u0111\u1ea5t hi\u1ec7n \u0111\u1ea1i s\u1eed d\u1ee5ng RNA ho\u1eb7c DNA trong c\u1ea3 hai d\u1ea1ng \u0111\u01a1n v\u00e0 \u0111\u00f4i cho v\u1eadt li\u1ec7u di truy\u1ec1n c\u1ee7a ch\u00fang v\u00e0 do \u0111\u00f3 c\u00f3 th\u1ec3 cung c\u1ea5p m\u1ed9t m\u00f4 h\u00ecnh cho th\u1ebf gi\u1edbi protein ARN gi\u1ea3 \u0111\u1ecbnh.<\/p>\n

C\u00e1c nh\u00e0 khoa h\u1ecdc nh\u1ea5n m\u1ea1nh r\u1eb1ng c\u00e1c virus ngo\u00e0i h\u00e0nh tinh s\u1ebd kh\u00f4ng g\u00e2y ra s\u1ef1 lo l\u1eafng ho\u1eb7c t\u1ea1o ra c\u00e1c k\u1ecbch b\u1ea3n \u00e1c m\u1ed9ng n\u00e0o.<\/p>\n

Stedman n\u00f3i th\u00eam: Virus ch\u1ecbu m\u1ed9t c\u00e1o bu\u1ed9c kh\u00f4ng c\u00f4ng b\u1eb1ng. N\u1ebfu ch\u00fang ta t\u00ecm th\u1ea5y virus tr\u00ean c\u00e1c h\u00e0nh tinh kh\u00e1c, n\u00f3 l\u00e0 m\u1ed9t d\u1ea5u hi\u1ec7u c\u1ee7a s\u1ef1 s\u1ed1ng, kh\u00f4ng ph\u1ea3i c\u00e1i g\u00ec \u0111\u00e1ng s\u1ee3.<\/p>\n

C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u th\u00fac gi\u1ee5c NASA v\u00e0 c\u00e1c c\u01a1 quan v\u0169 tr\u1ee5 kh\u00e1c t\u00ecm ki\u1ebfm virus khi h\u1ecd ti\u1ebfp t\u1ee5c nghi\u00ean c\u1ee9u v\u1ec1 c\u00e1c th\u1ebf gi\u1edbi ngo\u00e0i h\u00e0nh tinh.<\/p>\n

M\u1ed9t s\u1ed1 v\u1ecb tr\u00ed nh\u1ea5t \u0111\u1ecbnh nh\u01b0 ch\u1ea5t l\u1ecfng tr\u00ean sao Th\u1ed5 v\u00e0 M\u1eb7t tr\u0103ng c\u1ee7a sao M\u1ed9c ho\u1eb7c ph\u00f9 sa tr\u00ean sao H\u1ecfa c\u00f3 th\u1ec3 l\u00e0 n\u01a1i t\u1ed1t nh\u1ea5t \u0111\u1ec3 t\u00ecm ch\u00fang.<\/p>\n

Stedman ph\u00e1t hi\u1ec7n n\u0103m 2012 l\u00e0 m\u1ed9t nh\u00f3m virus ho\u00e0n to\u00e0n m\u1edbi c\u00f3 kh\u1ea3 n\u0103ng s\u1ed1ng trong c\u00e1c h\u1ed3 n\u00f3ng axit m\u00e0 b\u1ea3n ch\u1ea5t l\u00e0 axit s\u00f4i. B\u1ed9 gen virus m\u1edbi xu\u1ea5t hi\u1ec7n sau khi k\u1ebft h\u1ee3p DNA v\u00e0 RNA t\u1eeb hai nh\u00f3m virus kh\u00f4ng li\u00ean quan cho ph\u00e9p virus c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n c\u1ef1c \u0111oan.<\/p>\n

T\u01b0\u01a1ng t\u1ef1 nh\u01b0 v\u1eady, virus c\u00f3 th\u1ec3 t\u00ecm ra nh\u1eefng c\u00e1ch m\u1edbi \u0111\u1ec3 th\u00edch nghi trong c\u00e1c m\u00f4i tr\u01b0\u1eddng s\u1ed1ng kh\u1eafc nghi\u1ec7t. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a \u00fd t\u01b0\u1edfng ph\u00e1t hi\u1ec7n virus tr\u00ean v\u0169 tr\u1ee5 kh\u00f4ng ph\u1ea3i l\u00e0 qu\u00e1 k\u1ef3 l\u1ea1.<\/p>\n

(D\u00e2n tr\u00ed)<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Theo m\u1ed9t nghi\u00ean c\u1ee9u m\u1edbi, c\u00e1c nh\u00e0 khoa h\u1ecdc tin r\u1eb1ng, ch\u00eca kh\u00f3a \u0111\u1ec3 t\u00ecm ki\u1ebfm s\u1ef1 s\u1ed1ng trong v\u0169 tr\u1ee5 c\u00f3 th\u1ec3 l\u00e0 kh\u00e1m ph\u00e1 virus tr\u00ean c\u00e1c h\u00e0nh tinh ngo\u1ea1i lai, v\u00e0 n\u00f3 s\u1ebd b\u1eaft \u0111\u1ea7u cho m\u1ed9t m\u00f4n h\u1ecdc m\u1edbi v\u00e0 m\u1ed9t k\u1ef7 nguy\u00ean m\u1edbi trong khoa h\u1ecdc.   Virus nhi\u1ec1u h\u01a1n […]<\/p>\n","protected":false},"author":18,"featured_media":8049,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-8048","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\/8048","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\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=8048"}],"version-history":[{"count":1,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/8048\/revisions"}],"predecessor-version":[{"id":8050,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/8048\/revisions\/8050"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/8049"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=8048"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=8048"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=8048"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}