\u0110\u1ea1i b\u1ed9 ph\u1eadn sao ch\u1ed5i trong h\u1ec7 M\u1eb7t Tr\u1eddi xu\u1ea5t ph\u00e1t v\u00e0 m\u1ea5t \u0111i \u1edf v\u00f9ng t\u1eadn c\u00f9ng gi\u00e1 r\u00e9t xa x\u0103m. Tr\u00ean sao ch\u1ed5i t\u1ed3n t\u1ea1i nh\u1eefng v\u1eadt ch\u1ea5t nguy\u00ean th\u1ee7y c\u1ee7a th\u1eddi k\u1ef3 b\u1eaft \u0111\u1ea7u h\u00ecnh th\u00e0nh h\u1ec7 M\u1eb7t Tr\u1eddi, nh\u01b0ng sao ch\u1ed5i th\u1ef1c ch\u1ea5t g\u1ed3m nh\u1eefng ch\u1ea5t g\u00ec c\u1ea5u t\u1ea1o n\u00ean th\u00ec cho \u0111\u1ebfn nay ta ch\u1ec9 m\u1edbi d\u1ef1 \u0111o\u00e1n m\u00e0 ch\u01b0a kh\u1eb3ng \u0111\u1ecbnh \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n
\u0110\u1ec3 thu th\u1eadp v\u1eadt ch\u1ea5t nguy\u00ean thu\u1ef7 c\u1ee7a sao ch\u1ed5i, th\u00e1ng 2 n\u0103m 1999, C\u1ee5c v\u0169 tr\u1ee5 NASA M\u1ef9 \u0111\u00e3 ph\u00e1i m\u00e1y th\u0103m d\u00f2 “B\u1ee5i sao” bay v\u00e0o v\u0169 tr\u1ee5, n\u00f3 g\u1eb7p sao ch\u1ed5i “Huiter” v\u00e0o n\u0103m 2004. M\u00e1y th\u0103m d\u00f2 “B\u1ee5i sao” l\u00e0 m\u1ed9t ng\u01b0\u1eddi m\u00e1y c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng 285 kg, d\u01b0\u1edbi t\u00e1c d\u1ee5ng tr\u1ecdng l\u1ef1c c\u1ee7a Tr\u00e1i \u0110\u1ea5t n\u00f3 xuy\u00ean qua m\u1eb7t ph\u1eb3ng qu\u1ef9 \u0111\u1ea1o sao ch\u1ed5i 4,8 km \u0111\u1ec3 g\u1eb7p sao ch\u1ed5i. Khi g\u1eb7p m\u00e1y “B\u1ee5i sao” s\u1ebd gi\u01a1 ra m\u1ed9t b\u00e0n tay \u0111i g\u0103ng c\u1ee1 l\u1edbn \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng ch\u1ea5t kh\u00ed ng\u01b0ng k\u1ebft d\u1ebbo ho\u00e1 \u0111\u1ec3 thu th\u1eadp c\u00e1c ch\u1ea5t k\u1ebft tinh t\u1eeb sao ch\u1ed5i, \u0111\u01b0a n\u00f3 v\u00e0o kho\u1ea3ng thu h\u1ed3i mang v\u1ec1 m\u1eb7t \u0111\u1ea5t. N\u0103m 2006 c\u00e1c nh\u00e0 khoa h\u1ecdc l\u1ea5y \u0111\u01b0\u1ee3c b\u1ee5i sao ch\u1ed5i. \u0110\u00f3 l\u00e0 ti\u00eau b\u1ea3n thi\u00ean th\u1ec3 l\u1ea7n \u0111\u1ea7u ti\u00ean con ng\u01b0\u1eddi thu th\u1eadp \u0111\u01b0\u1ee3c t\u1eeb ngo\u00e0i “h\u1ec7 th\u1ed1ng Tr\u00e1i \u0110\u1ea5t – M\u1eb7t Tr\u0103ng”. Ng\u01b0\u1eddi ta \u0111ang c\u1ed1 g\u1eafng nghi\u00ean c\u1ee9u \u0111\u1ec3 c\u00f3 th\u1ec3 th\u1ea5y \u0111\u01b0\u1ee3c \u00e1o kho\u00e1c sao ch\u1ed5i b\u1eb1ng l\u1edbp l\u00f4ng th\u1ef1c ch\u1ea5t l\u00e0 do ch\u1ea5t g\u00ec c\u1ea5u t\u1ea1o n\u00ean.<\/p>\n\n\n\n
\u0110\u1ed3ng th\u1eddi m\u1ed9t k\u1ebf ho\u1ea1ch th\u0103m d\u00f2 v\u00e0 \u0111\u1ed5 b\u1ed9 sao ch\u1ed5i c\u00e0ng ph\u1ea5n kh\u00edch l\u00f2ng ng\u01b0\u1eddi h\u01a1n \u0111\u00e3 b\u1eaft \u0111\u1ea7u \u0111\u01b0\u1ee3c \u1ea5p \u1ee7.<\/p>\n\n\n\n
M\u1ed9t nh\u00e0 khoa h\u1ecdc M\u1ef9 l\u00e0 Bulayin Miaoheite \u0111\u00e3 \u0111\u1ec1 xu\u1ea5t m\u1ed9t \u00fd t\u01b0\u1edfng r\u1ea5t k\u1ef3 di\u1ec7u. \u00d4ng chu\u1ea9n b\u1ecb \u0111\u01b0a m\u1ed9t m\u00e1y th\u0103m d\u00f2 “v\u00f9ng s\u00e2u v\u0169 tr\u1ee5 4” \u0111\u1ec3 \u0111\u1ed5 b\u1ed9 l\u00ean sao ch\u1ed5i “Tanfur 1” n\u1eb1m c\u00e1ch xa Tr\u00e1i \u0110\u1ea5t m\u1ea5y tr\u0103m tri\u1ec7u km.<\/p>\n\n\n\n
Sao ch\u1ed5i “Tanfur 1” c\u1ee9 c\u00e1ch 5,5 n\u0103m quay quanh M\u1eb7t Tr\u1eddi m\u1ed9t l\u1ea7n. \u0110\u01b0\u1eddng k\u00ednh qu\u1ef9 \u0111\u1ea1o c\u1ee7a n\u00f3 l\u00e0 6 t\u1ec9 km. Cho d\u00f9 c\u00e1c nh\u00e0 khoa h\u1ecdc tin r\u1eb1ng sao ch\u1ed5i l\u00e0 do b\u0103ng v\u00e0 ch\u1ea5t b\u1ee5i c\u1ea5u t\u1ea1o th\u00e0nh, nh\u01b0ng tr\u01b0\u1edbc khi ch\u01b0a l\u1ea5y \u0111\u01b0\u1ee3c m\u1eabu v\u1eadt th\u1eadt th\u00ec \u0111\u00f3 v\u1eabn c\u00f2n l\u00e0 m\u1ed9t \u1ea9n s\u1ed1. C\u00e1c nh\u00e0 khoa h\u1ecdc gi\u1ea3<\/a> thi\u1ebft c\u00e1c ch\u1ea5t b\u1ec1 m\u1eb7t sao ch\u1ed5i n\u1eb1m \u1edf tr\u1ea1ng th\u00e1i gi\u1eefa nh\u0169n nh\u01b0 b\u00f4ng v\u00e0 \u0111\u00f4ng c\u1ee9ng nh\u01b0 b\u00ea t\u00f4ng, do \u0111\u00f3 h\u1ecd \u0111\u00e3 thi\u1ebft k\u1ebf<\/a> m\u1ed9t trang b\u1ecb gi\u1ed1ng nh\u01b0 v\u00e2y c\u00e1 s\u1ebd b\u1ecf neo tr\u00ean b\u1ec1 m\u1eb7t c\u1ee7a n\u00f3; n\u1ebfu b\u1ec1 m\u1eb7t sao ch\u1ed5i l\u00e0 m\u1ec1m nh\u0169n th\u00ec v\u00e2y c\u00e1 ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 b\u01a1i s\u00e2u v\u00e0o sao ch\u1ed5i, sau \u0111\u00f3 m\u1edf ra m\u1ed9t c\u00e1nh d\u00f9 b\u1eb1ng kim lo\u1ea1i nho nh\u1ecf \u0111\u1ec3 c\u1ed1 \u0111\u1ecbnh \u1edf \u0111\u00f3.<\/p>\n\n\n\n Thi\u1ebft b\u1ecb kh\u00e1m ph\u00e1 “v\u00f9ng s\u00e2u v\u0169 tr\u1ee5 4” th\u00e1ng 4 n\u0103m 2003 \u0111\u01b0\u1ee3c ph\u00f3ng l\u00ean. Sau \u0111\u00f3 2,5 n\u0103m thi\u1ebft b\u1ecb g\u1eb7p sao ch\u1ed5i “Tanfur 1”. Sau n\u00e0y n\u00f3 bay quanh sao ch\u1ed5i 115 ng\u00e0y \u0111\u1ec3 t\u00ecm \u0111i\u1ec3m \u0111\u1ed5 b\u1ed9.<\/p>\n\n\n\n S\u1ef1 \u0111\u1ed5 b\u1ed9 c\u1ee7a m\u00e1y th\u0103m d\u00f2 “v\u00f9ng s\u00e2u v\u0169 tr\u1ee5 4” v\u00e0 vi\u1ec7c l\u1ea5y m\u1eabu c\u1ee7a m\u00e1y th\u0103m d\u00f2 “b\u1ee5i sao” vi\u1ebft n\u00ean m\u1ed9t ch\u01b0\u01a1ng m\u1edbi c\u1ee7a con ng\u01b0\u1eddi trong l\u1ecbch s\u1eed th\u0103m d\u00f2 sao ch\u1ed5i.<\/p>\n\n\n\n T\u1eeb kho\u00e1: Sao ch\u1ed5i; M\u00e1y th\u0103m d\u00f2 sao ch\u1ed5i.<\/p>\n\n\n\n <\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":" \u0110\u1ea1i b\u1ed9 ph\u1eadn sao ch\u1ed5i trong h\u1ec7 M\u1eb7t Tr\u1eddi xu\u1ea5t ph\u00e1t v\u00e0 m\u1ea5t \u0111i \u1edf v\u00f9ng t\u1eadn c\u00f9ng gi\u00e1 r\u00e9t xa x\u0103m. Tr\u00ean sao ch\u1ed5i t\u1ed3n t\u1ea1i nh\u1eefng v\u1eadt ch\u1ea5t nguy\u00ean th\u1ee7y c\u1ee7a th\u1eddi k\u1ef3 b\u1eaft \u0111\u1ea7u h\u00ecnh th\u00e0nh h\u1ec7 M\u1eb7t Tr\u1eddi, nh\u01b0ng sao ch\u1ed5i th\u1ef1c ch\u1ea5t g\u1ed3m nh\u1eefng ch\u1ea5t g\u00ec c\u1ea5u t\u1ea1o n\u00ean th\u00ec […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[15,7],"tags":[],"class_list":["post-7375","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-vat-ly"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7375","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=7375"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7375\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=7375"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=7375"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=7375"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}