{"id":7820,"date":"2017-11-09T01:00:48","date_gmt":"2017-11-08T18:00:48","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=7820"},"modified":"2017-12-04T01:01:18","modified_gmt":"2017-12-03T18:01:18","slug":"nhung-chien-luoc-bao-ve-trai-dat-khoi-thien-thach-cua-nasa","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/nhung-chien-luoc-bao-ve-trai-dat-khoi-thien-thach-cua-nasa\/","title":{"rendered":"Nh\u1eefng chi\u1ebfn l\u01b0\u1ee3c b\u1ea3o v\u1ec7 Tr\u00e1i \u0111\u1ea5t kh\u1ecfi thi\u00ean th\u1ea1ch c\u1ee7a NASA"},"content":{"rendered":"

\"alt\"<\/p>\n

NASA nghi\u00ean c\u1ee9u nhi\u1ec1u ph\u01b0\u01a1ng \u00e1n kh\u00e1c nhau \u0111\u1ec3 l\u00e0m ch\u1ec7ch h\u01b0\u1edbng thi\u00ean th\u1ea1ch ho\u1eb7c gi\u1ea3m thi\u1ec7t h\u1ea1i m\u00e0 ch\u00fang g\u00e2y ra khi va ch\u1ea1m v\u1edbi Tr\u00e1i \u0111\u1ea5t.<\/p>\n

T\u00e0u k\u00e9o l\u1ef1c h\u1ea5p d\u1eabn<\/em><\/strong><\/p>\n

Hi\u1ec7n nay, ch\u01b0a c\u00f3 lo\u1ea1i v\u0169 kh\u00ed n\u00e0o \u0111\u1ee7 m\u1ea1nh \u0111\u1ec3 ph\u00e1 h\u1ee7y m\u1ed9t ti\u1ec3u h\u00e0nh tinh khi ph\u00e1t hi\u1ec7n trong th\u1eddi gian ng\u1eafn, theo RT. NASA tin r\u1eb1ng, bi\u1ec7n ph\u00e1p an to\u00e0n nh\u1ea5t \u0111\u1ec3 tr\u00e1nh th\u1ea3m h\u1ecda x\u1ea3y ra l\u00e0 ph\u00e1t tri\u1ec3n h\u1ec7 th\u1ed1ng c\u1ea3nh b\u00e1o s\u1edbm.<\/p>\n

C\u00e1c nh\u00e0 khoa h\u1ecdc c\u1ea7n ph\u00e1t hi\u1ec7n m\u1ed9t ti\u1ec3u h\u00e0nh tinh tr\u01b0\u1edbc h\u00e0ng th\u1eadp k\u1ef7 n\u1ebfu mu\u1ed1n ng\u0103n ch\u1eb7n n\u00f3 va ch\u1ea1m v\u1edbi Tr\u00e1i \u0111\u1ea5t. Tr\u00ean th\u1ef1c t\u1ebf, h\u1ecd c\u0169ng c\u1ea7n m\u1ed9t kho\u1ea3ng th\u1eddi gian t\u01b0\u01a1ng \u0111\u01b0\u01a1ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 c\u1ea5u t\u1ea1o c\u1ee7a thi\u00ean th\u1ec3 v\u00e0 quy\u1ebft \u0111\u1ecbnh s\u1eed d\u1ee5ng k\u1ef9 thu\u1eadt l\u00e0m ch\u1ec7ch h\u01b0\u1edbng n\u00e0o tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh m\u1ed9t nhi\u1ec7m v\u1ee5 c\u00f3 th\u1ec3 ch\u1ec9 khi\u1ebfn n\u00f3 l\u1ec7ch \u0111i m\u1ed9t hay hai centimet m\u1ed7i gi\u00e2y.<\/p>\n

N\u1ebfu ph\u00e1t hi\u1ec7n ti\u1ec3u h\u00e0nh tinh \u0111\u1ee7 s\u1edbm, c\u00e1c nh\u00e0 khoa h\u1ecdc c\u00f3 th\u1ec3 thay \u0111\u1ed5i \u0111\u01b0\u1eddng \u0111i c\u1ee7a n\u00f3 nh\u1edd s\u1eed d\u1ee5ng l\u1ef1c h\u1ea5p d\u1eabn t\u1eeb m\u1ed9t t\u00e0u v\u0169 tr\u1ee5, theo NASA. T\u00e0u k\u00e9o l\u1ef1c h\u1ea5p d\u1eabn c\u00f3 th\u1ec3 bay s\u00e1t thi\u00ean th\u1ec3 trong v\u00e0i th\u1eadp k\u1ef7, d\u1ea7n k\u00e9o n\u00f3 \u0111\u1ebfn m\u1ed9t n\u01a1i an to\u00e0n trong v\u0169 tr\u1ee5, n\u01a1i con ng\u01b0\u1eddi c\u00f3 th\u1ec3 nghi\u00ean c\u1ee9u ho\u1eb7c khai th\u00e1c cho m\u1ee5c \u0111\u00edch th\u01b0\u01a1ng m\u1ea1i. D\u1ef1 \u00e1n c\u00f3 th\u1ec3 v\u00f4 c\u00f9ng \u0111\u1eaft \u0111\u1ecf v\u00e0 t\u1ed1n th\u1eddi gian n\u00e0y v\u1eabn \u0111ang \u1edf giai \u0111o\u1ea1n chu\u1ea9n b\u1ecb l\u00ean k\u1ebf ho\u1ea1ch.<\/p>\n

\u0110\u1ed1t laser<\/em><\/strong><\/p>\n

Th\u00e1ng 2\/2013, thi\u00ean th\u1ea1ch Chelyabinsk lao qua kh\u00ed quy\u1ec3n m\u00e0 c\u00e1c nh\u00e0 khoa h\u1ecdc tr\u01b0\u1edbc \u0111\u00f3 kh\u00f4ng h\u1ec1 ph\u00e1t hi\u1ec7n, nh\u1eafc nh\u1edf con ng\u01b0\u1eddi v\u1ec1 m\u1ed1i \u0111e d\u1ecda c\u1ee7a c\u00e1c thi\u00ean th\u1ec3 g\u1ea7n Tr\u00e1i \u0111\u1ea5t. N\u00f3 ph\u00e1t n\u1ed5 tr\u00ean b\u1ea7u tr\u1eddi ph\u00eda t\u00e2y n\u01b0\u1edbc Nga v\u00e0 gi\u1ea3i ph\u00f3ng n\u0103ng l\u01b0\u1ee3ng m\u1ea1nh g\u1ea5p 20 – 30 l\u1ea7n bom nguy\u00ean t\u1eed th\u1ea3 xu\u1ed1ng Hiroshima.<\/p>\n

Trong t\u01b0\u01a1ng lai, c\u00e1c nh\u00e0 khoa h\u1ecdc c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng bi\u1ec7n ph\u00e1p \u0111\u1ed1t laser \u0111\u1ec3 x\u1eed l\u00fd nh\u1eefng thi\u00ean th\u1ea1ch nh\u01b0 Chelyabinsk. \u0110\u00e2y l\u00e0 k\u1ef9 thu\u1eadt chi\u1ebfu laser l\u00ean b\u1ec1 m\u1eb7t c\u1ee7a ti\u1ec3u h\u00e0nh tinh, bi\u1ebfn n\u00f3 t\u1eeb ch\u1ea5t r\u1eafn th\u00e0nh ch\u1ea5t kh\u00ed.<\/p>\n

M\u1ed9t nghi\u00ean c\u1ee9u c\u1ee7a ph\u00f2ng th\u00ed nghi\u1ec7m v\u1ec1 khoa h\u1ecdc v\u0169 tr\u1ee5 thu\u1ed9c \u0110\u1ea1i h\u1ecdc Strathclyde cho th\u1ea5y, v\u1ec1 m\u1eb7t l\u00fd thuy\u1ebft, vi\u1ec7c t\u1eadn d\u1ee5ng c\u00e1c tia m\u1eb7t tr\u1eddi l\u00e0m n\u0103ng l\u01b0\u1ee3ng cho m\u1ed9t \u0111\u1ed9i t\u00e0u v\u0169 tr\u1ee5 mang laser c\u00f3 t\u00ednh kh\u1ea3 thi.<\/p>\n

Bi\u1ebfn \u0111\u00e1 th\u00e0nh kh\u00f4ng kh\u00ed s\u1ebd lo\u1ea1i tr\u1eeb kh\u1ea3 n\u0103ng thi\u00ean th\u1ec3 v\u1ee1 th\u00e0nh nhi\u1ec1u m\u1ea3nh v\u00e0 c\u00f3 th\u1ec3 g\u00e2y nguy hi\u1ec3m l\u1edbn h\u01a1n cho Tr\u00e1i \u0111\u1ea5t. Ngo\u00e0i ra, c\u00e1ch n\u00e0y c\u0169ng kh\u00f4ng \u0111\u00f2i h\u1ecfi t\u00e0u v\u0169 tr\u1ee5 ph\u1ea3i \u0111\u00e1p xu\u1ed1ng b\u1ec1 m\u1eb7t thi\u00ean th\u1ec3 \u0111ang di chuy\u1ec3n.<\/p>\n

Va ch\u1ea1m \u0111\u1ed9ng h\u1ecdc<\/em><\/strong><\/p>\n

C\u00e1c nh\u00e0 khoa h\u1ecdc tin r\u1eb1ng thi\u1ebft b\u1ecb va ch\u1ea1m \u0111\u1ed9ng h\u1ecdc, t\u1ee9c l\u00e0 m\u1ed9t t\u00ean l\u1eeda \u0111\u00e2m v\u00e0o l\u00e0m l\u1ec7ch ti\u1ec3u h\u00e0nh tinh, c\u00f3 th\u1ec3 hi\u1ec7u qu\u1ea3 v\u1edbi nh\u1eefng thi\u00ean th\u1ec3 l\u1edbn c\u00f3 nguy c\u01a1 \u0111\u00e2m xu\u1ed1ng Tr\u00e1i \u0111\u1ea5t. C\u00e1c nh\u00e0 khoa h\u1ecdc s\u1ebd ti\u1ebfn h\u00e0nh m\u1ed9t nhi\u1ec7m v\u1ee5 trong t\u01b0\u01a1ng lai g\u1ea7n \u0111\u1ec3 ki\u1ec3m tra t\u00ednh kh\u1ea3 thi c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p n\u00e0y.<\/p>\n

\u0110\u00e2y l\u00e0 nhi\u1ec7m v\u1ee5 h\u1ee3p t\u00e1c gi\u1eefa NASA v\u00e0 C\u01a1 quan V\u0169 tr\u1ee5 Ch\u00e2u \u00c2u (ESA), mang t\u00ean \u0110\u00e1nh gi\u00e1 t\u00e1c \u0111\u1ed9ng v\u00e0 l\u00e0m ch\u1ec7ch h\u01b0\u1edbng thi\u00ean th\u1ea1ch (AIDA), d\u1ef1 ki\u1ebfn tri\u1ec3n khai th\u00e1ng 10\/2020. H\u1ecd s\u1ebd ph\u00f3ng hai t\u00e0u v\u0169 tr\u1ee5 l\u00ean kh\u00f4ng gian \u0111\u1ec3 th\u1eed nghi\u1ec7m v\u1edbi ti\u1ec3u h\u00e0nh tinh Didymos khi n\u00f3 \u0111\u1ebfn g\u1ea7n Tr\u00e1i \u0110\u1ea5t n\u0103m 2022.<\/p>\n

\u0110\u1ea7u ti\u00ean, t\u00e0u v\u0169 tr\u1ee5 do NASA ph\u1ee5 tr\u00e1ch ph\u00f3ng mang t\u00ean Double Asteroid Redirection Test (DART), s\u1ebd \u0111\u00e2m v\u00e0o Didymos. T\u00e0u v\u0169 tr\u1ee5 th\u1ee9 hai, Asteroid Impact Mission (AIM) c\u1ee7a ESA, s\u1ebd bay quanh ti\u1ec3u h\u00e0nh tinh n\u00e0y \u0111\u1ec3 ph\u00e2n t\u00edch t\u00e1c \u0111\u1ed9ng c\u1ee7a v\u1ee5 va ch\u1ea1m.<\/p>\n

C\u00e1c nh\u00e0 khoa h\u1ecdc hy v\u1ecdng, AIM s\u1ebd mang v\u1ec1 nh\u1eefng th\u00f4ng tin gi\u00e1 tr\u1ecb h\u1eefu \u00edch cho nh\u1eefng n\u1ed7 l\u1ef1c b\u1ea3o v\u1ec7 Tr\u00e1i \u0111\u1ea5t trong t\u01b0\u01a1ng lai. B\u1ea5t c\u1ee9 s\u1ef1 thay \u0111\u1ed5i n\u00e0o c\u1ee7a Didymos c\u0169ng s\u1ebd \u0111\u00e1nh d\u1ea5u l\u1ea7n \u0111\u1ea7u ti\u00ean nh\u00e2n lo\u1ea1i thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 \u0111\u01b0\u1eddng \u0111i c\u1ee7a m\u1ed9t thi\u00ean th\u1ec3 trong h\u1ec7 M\u1eb7t tr\u1eddi.<\/p>\n

Va ch\u1ea1m h\u1ea1t nh\u00e2n<\/em><\/strong><\/p>\n

\u0110\u01b0\u1ee3c coi l\u00e0 gi\u1ea3i ph\u00e1p cu\u1ed1i c\u00f9ng, vi\u1ec7c g\u00e2y n\u1ed5 h\u1ea1t nh\u00e2n \u0111\u1ec3 l\u00e0m ch\u1ec7ch h\u01b0\u1edbng ti\u1ec3u h\u00e0nh tinh s\u1ebd g\u00e2y ra nh\u1eefng th\u00e1ch th\u1ee9c v\u1ec1 \u0111\u1ea1o \u0111\u1ee9c v\u00e0 ch\u00ednh tr\u1ecb.<\/p>\n

C\u00e1c sinh vi\u00ean \u0111\u1ebfn t\u1eeb Vi\u1ec7n C\u00f4ng ngh\u1ec7 Massachusetts \u0111\u00e3 l\u1ea7n \u0111\u1ea7u ti\u00ean ti\u1ebfn h\u00e0nh nghi\u00ean c\u1ee9u c\u00f4ng khai v\u1ec1 ph\u01b0\u01a1ng ph\u00e1p n\u00e0y n\u0103m 1967. Trong d\u1ef1 \u00e1n v\u1edbi t\u00ean g\u1ecdi Icarus, c\u00e1c sinh vi\u00ean \u0111\u1ec1 xu\u1ea5t NASA ph\u00f3ng 6 t\u00ean l\u1eeda Saturn V v\u00e0 trang b\u1ecb th\u00eam \u0111\u1ea7u \u0111\u1ea1n h\u1ea1t nh\u00e2n cho m\u1ed7i chi\u1ebfc.<\/p>\n

Nh\u00f3m nghi\u00ean c\u1ee9u thi\u1ebft l\u1eadp m\u1ed9t h\u1ec7 th\u1ed1ng v\u1eadn chuy\u1ec3n \u0111\u1ec3 t\u00ean l\u1eeda \u0111\u1ea7u ti\u00ean s\u1ebd ph\u00f3ng \u0111\u1ebfn ti\u1ec3u h\u00e0nh tinh c\u00e1ch v\u1ee5 va ch\u1ea1m v\u1edbi Tr\u00e1i \u0111\u1ea5t 13 ng\u00e0y, t\u00ean l\u1eeda th\u1ee9 hai c\u00e1ch 10 ng\u00e0y, v\u00e0 c\u1ee9 th\u1ebf ti\u1ebfp t\u1ee5c, theo Wired. D\u1ef1 \u00e1n c\u00f3 71% kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 Tr\u00e1i \u0110\u1ea5t ho\u00e0n to\u00e0n tho\u00e1t kh\u1ecfi th\u1ea3m h\u1ecda v\u00e0 86% gi\u1ea3m thi\u1ec7t h\u1ea1i v\u1ee5 va ch\u1ea1m.<\/p>\n

Tuy nhi\u00ean, Hi\u1ec7p \u01b0\u1edbc Kh\u00f4ng gian 1966 c\u1ea5m s\u1eed d\u1ee5ng v\u0169 kh\u00ed h\u1ee7y di\u1ec7t h\u00e0ng lo\u1ea1t ngo\u00e0i v\u0169 tr\u1ee5, ngh\u0129a l\u00e0 c\u1ea7n \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 \u0111\u1ed3ng thu\u1eadn qu\u1ed1c t\u1ebf tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh ph\u00f3ng t\u00ean l\u1eeda mang \u0111\u1ea7u \u0111\u1ea1n h\u1ea1t nh\u00e2n v\u00e0o ti\u1ec3u h\u00e0nh tinh.<\/p>\n

(Vnexpress)<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

NASA nghi\u00ean c\u1ee9u nhi\u1ec1u ph\u01b0\u01a1ng \u00e1n kh\u00e1c nhau \u0111\u1ec3 l\u00e0m ch\u1ec7ch h\u01b0\u1edbng thi\u00ean th\u1ea1ch ho\u1eb7c gi\u1ea3m thi\u1ec7t h\u1ea1i m\u00e0 ch\u00fang g\u00e2y ra khi va ch\u1ea1m v\u1edbi Tr\u00e1i \u0111\u1ea5t. T\u00e0u k\u00e9o l\u1ef1c h\u1ea5p d\u1eabn Hi\u1ec7n nay, ch\u01b0a c\u00f3 lo\u1ea1i v\u0169 kh\u00ed n\u00e0o \u0111\u1ee7 m\u1ea1nh \u0111\u1ec3 ph\u00e1 h\u1ee7y m\u1ed9t ti\u1ec3u h\u00e0nh tinh khi ph\u00e1t hi\u1ec7n trong th\u1eddi […]<\/p>\n","protected":false},"author":18,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-7820","post","type-post","status-publish","format-standard","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/7820","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=7820"}],"version-history":[{"count":1,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/7820\/revisions"}],"predecessor-version":[{"id":7821,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/7820\/revisions\/7821"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=7820"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=7820"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=7820"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}