{"id":548,"date":"2020-08-22T15:36:11","date_gmt":"2020-08-22T08:36:11","guid":{"rendered":"http:\/\/weathervn.com\/?p=548"},"modified":"2020-08-22T15:37:51","modified_gmt":"2020-08-22T08:37:51","slug":"548","status":"publish","type":"post","link":"https:\/\/vietweather.com\/index.php\/548\/","title":{"rendered":""},"content":{"rendered":"

T\u01b0 li\u1ec7u tham kh\u1ea3o t\u1ea1i \u0111\u00e2y: https:\/\/bit.ly\/32izgRB<\/p>\n

Nghe c\u00f3 v\u1ebb kh\u00e1 l\u00e0 k\u00ec l\u1ea1, nh\u01b0ng c\u00f3 m\u1ed9t H\u1ec7 M\u1eb7t Tr\u1eddi n\u1eb1m trong H\u1ec7 M\u1eb7t Tr\u1eddi c\u1ee7a ch\u00fang ta.<\/p>\n

T\u1ea5t nhi\u00ean, \u0111\u00e2y ch\u1ec9 l\u00e0 m\u1ed9t c\u00e1ch n\u00f3i v\u00ed von m\u00e0 th\u00f4i. Nh\u01b0ng n\u1ebfu ch\u00fang ta nh\u00ecn v\u00e0o Sao M\u1ed9c v\u00e0 b\u1ed1n M\u1eb7t Tr\u0103ng Galilean \u0111ang quay quanh n\u00f3, ta s\u1ebd th\u1ea5y s\u1ef1 ph\u00e2n b\u1ed1 h\u00e0nh tinh-m\u1eb7t tr\u0103ng n\u00e0y\u2026 kh\u00e1 gi\u1ed1ng v\u1edbi H\u1ec7 M\u1eb7t Tr\u1eddi c\u1ee7a ch\u00fang ta<\/p>\n

\"\"<\/p>\n

N\u00f3i s\u01a1 qua v\u1ec1 b\u1ed1n M\u1eb7t Tr\u0103ng n\u00e0y c\u1ee7a Sao M\u1ed9c, ch\u1eafc h\u1eb3n b\u1ea1n c\u0169ng \u0111\u00e3 \u0111o\u00e1n ra ch\u00fang \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n b\u1edfi ai r\u1ed3i nh\u1ec9?<\/p>\n

\u0110\u00fang v\u1eady. V\u00e0o m\u1ed9t \u0111\u00eam n\u0103m 1609, Galileo quan s\u00e1t th\u1ea5y r\u1eb1ng c\u00f3 ba ch\u1ea5m s\u00e1ng r\u1ea5t g\u1ea7n Sao M\u1ed9c, v\u00e0 th\u1eadt k\u00ec l\u1ea1 ch\u00fang n\u1eb1m g\u1ea7n nh\u01b0 th\u1eb3ng h\u00e0ng. Ph\u1ea5n kh\u00edch tr\u01b0\u1edbc ph\u00e1t hi\u1ec7n m\u1edbi, \u00f4ng d\u00e0nh nh\u1eefng \u0111\u00eam sau \u0111\u1ec3 ti\u1ebfp t\u1ee5c theo d\u00f5i. M\u1ed9t ch\u1ea5m s\u00e1ng n\u1eefa xu\u1ea5t hi\u1ec7n.<\/p>\n

Sau khi ph\u00e1c th\u1ea3o nh\u1eefng v\u1ecb tr\u00ed kh\u1ea3 ki\u1ebfn c\u1ee7a ch\u00fang qua quan s\u00e1t, \u00f4ng \u0111\u00e3 nh\u1eadn ra ch\u00fang \u0111ang th\u1eadt s\u1ef1 bay xung quanh Sao M\u1ed9c, h\u1ec7t nh\u01b0 c\u00e1ch M\u1eb7t Tr\u0103ng c\u1ee7a ch\u00fang ta di chuy\u1ec3n quanh Tr\u00e1i \u0110\u1ea5t.<\/p>\n

Khi \u00f4ng c\u00f4ng b\u1ed1 ph\u00e1t hi\u1ec7n n\u00e0y, n\u00f3 \u0111\u00e3 gi\u00e1ng m\u1ed9t \u0111\u00f2n th\u1eadt m\u1ea1nh v\u00e0o m\u00f4 h\u00ecnh \u0111\u1ecba t\u00e2m (h\u1ec7 Ptolemaios) do nh\u00e0 thi\u00ean v\u0103n h\u1ecdc Ptolemy \u0111\u1ec1 xu\u1ea5t.<\/p>\n

Galileo \u0111\u00e3 \u0111\u1eb7t t\u00ean ch\u00fang l\u1ea7n l\u01b0\u1ee3t theo b\u1ed1n ng\u01b0\u1eddi trong gia \u0111\u00ecnh ho\u00e0ng t\u1ed9c Medici v\u00ec \u0111\u00e3 b\u1ea3o tr\u1ee3 cho vi\u1ec7c xu\u1ea5t b\u1ea3n c\u1ee7a \u00f4ng v\u00e0 g\u1ecdi ch\u00fang l\u00e0 \u201cNh\u1eefng ng\u00f4i sao Medician\u201d, sau n\u00e0y ch\u00fang l\u1ea1i \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn d\u01b0\u1edbi t\u00ean g\u1ecdi: Nh\u1eefng M\u1eb7t Tr\u0103ng Galilean.<\/p>\n

T\u1eeb \u0111\u00f3, nhi\u1ec1u nghi\u00ean c\u1ee9u v\u00e0 \u0111o \u0111\u1ea1c v\u1ec1 b\u1ed1n M\u1eb7t Tr\u0103ng \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n. L\u1ea7n l\u01b0\u1ee3t t\u1eeb trong ra ngo\u00e0i, ch\u00fang l\u00e0 Io, Europa, Ganymede v\u00e0 Callisto (m\u1ed9t \u0111i\u1ec1u th\u00fa v\u1ecb l\u00e0 ch\u00fang \u0111\u1ec1u \u0111\u01b0\u1ee3c \u0111\u1eb7t t\u00ean theo c\u00e1c nh\u00e2n v\u1eadt trong th\u1ea7n tho\u1ea1i Hi L\u1ea1p, d\u00f9 Jupiter l\u00e0 m\u1ed9t v\u1ecb th\u1ea7n trong th\u1ea7n tho\u1ea1i La M\u00e3)<\/p>\n

\"\"<\/p>\n

Ch\u00fang c\u00f3 k\u00edch c\u1ee1 kh\u00e1c nhau, t\u1eeb nh\u1ecf h\u01a1n M\u1eb7t Tr\u0103ng c\u1ee7a Tr\u00e1i \u0110\u1ea5t (Europa) \u0111\u1ebfn l\u1edbn h\u01a1n Sao Th\u1ee7y (Ganymede).<\/p>\n

Kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang c\u1ee7a ch\u00fang gi\u1ea3m theo th\u1ee9 t\u1ef1 t\u1eeb trong ra ngo\u00e0i, kh\u00e1 gi\u1ed1ng v\u1edbi s\u1ef1 ph\u00e2n b\u1ed1 c\u1ee7a c\u00e1c h\u00e0nh tinh kh\u00ed trong H\u1ec7 M\u1eb7t Tr\u1eddi. B\u00ean c\u1ea1nh \u0111\u00f3, ch\u00fang c\u00f3 c\u00e1c chu k\u00ec qu\u1ef9 \u0111\u1ea1o kh\u00e1c nhau.<\/p>\n

\u0110\u1eb7c bi\u1ec7t h\u01a1n, ch\u00fang c\u0169ng c\u00f3 nh\u1eefng th\u00e0nh ph\u1ea7n c\u1ea5u t\u1ea1o v\u00e0 t\u00ednh ch\u1ea5t kh\u00e1c nhau, khi\u1ebfn \u00fd t\u01b0\u1edfng v\u1ec1 ch\u00fang nh\u01b0 l\u00e0 m\u1ed9t m\u00f4 h\u00ecnh H\u1ec7 M\u1eb7t Tr\u1eddi thu nh\u1ecf c\u00e0ng \u0111\u01b0\u1ee3c \u0111\u00f3n nh\u1eadn.<\/p>\n

Sao M\u1ed9c, h\u00e0nh tinh m\u00e0 kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn \u0111\u1ebfn n\u1ed7i kh\u1ed1i t\u00e2m c\u1ee7a H\u1ec7 M\u1eb7t Tr\u1eddi – Sao M\u1ed9c kh\u00f4ng n\u1eb1m thu\u1ed9c M\u1eb7t tr\u1eddi n\u1eefa. H\u01a1n th\u1ebf, n\u00f3 c\u00f2n ph\u00e1t ra nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng nhi\u1ec7t h\u01a1n so v\u1edbi nhi\u1ec7t l\u01b0\u1ee3ng n\u00f3 nh\u1eadn \u0111\u01b0\u1ee3c t\u1eeb M\u1eb7t Tr\u1eddi.<\/p>\n

Do \u0111\u00f3 c\u00f3 th\u1ec3 xem M\u1ed9c Tinh nh\u01b0 l\u00e0 m\u1ed9t anh c\u1ea3 c\u1ee7a H\u1ec7 M\u1eb7t Tr\u1eddi c\u1ee7a ch\u00fang ta. Thu\u1edf c\u00f2n trai tr\u1ebb (m\u1edbi h\u00ecnh th\u00e0nh), Sao M\u1ed9c n\u00f3ng h\u01a1n v\u00e0 c\u00f3 \u0111\u01b0\u1eddng k\u00ednh l\u1edbn g\u1ea5p 2 l\u1ea7n hi\u1ec7n nay, do v\u1eady n\u00f3 th\u1ef1c s\u1ef1 gi\u1ed1ng M\u1eb7t Tr\u1eddi n\u1ebfu nh\u00ecn theo m\u1ed9t g\u00f3c \u0111\u1ed9 n\u00e0o \u0111\u00f3.<\/p>\n

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Io, v\u1edbi h\u01a1n 400 n\u00fai l\u1eeda ho\u1ea1t \u0111\u1ed9ng, l\u00e0 thi\u00ean th\u1ec3 c\u00f3 ho\u1ea1t \u0111\u1ecdng \u0111\u1ecba ch\u1ea5t m\u1ea1nh nh\u1ea5t trong H\u1ec7 M\u1eb7t Tr\u1eddi. B\u00ean c\u1ea1nh \u0111\u00f3, l\u00f5i gi\u00e0u s\u1eaft v\u00e0 l\u1edbp v\u1ecf g\u1ed3m nhi\u1ec1u h\u1ee3p ch\u1ea5t \u0111\u00e1 khi\u1ebfn n\u00f3 tr\u00f4ng gi\u1ed1ng m\u1ed9t h\u00e0nh tinh \u0111\u1ea5t \u0111\u00e1.<\/p>\n

Europa, nh\u1eb5n m\u1ecbn v\u00e0 s\u00e1ng v\u1edbi m\u1ed9t l\u1edbp n\u01b0\u1edbc b\u0103ng d\u00e0y 100-200km bao ph\u1ee7 xung quanh. V\u00ec l\u1ef1c h\u1ea5p d\u1eabn qu\u00e1 m\u1ea1nh c\u1ee7a Sao M\u1ed9c, m\u1ed9t b\u00ean c\u1ee7a M\u1eb7t Tr\u0103ng n\u00e0y lu\u00f4n \u0111\u1ed1i di\u1ec7n v\u1edbi h\u00e0nh tinh n\u00e0y. Europa ch\u1ee7 y\u1ebfu l\u00e0 \u0111\u00e1 silicat v\u00e0 c\u00f3 l\u00f5i s\u1eaft, v\u1edbi b\u1ea7u kh\u00f4ng kh\u00ed m\u1ecfng ch\u1ee7 y\u1ebfu l\u00e0 oxi.<\/p>\n

Ganymede, v\u1ec7 tinh t\u1ef1 nhi\u00ean l\u1edbn nh\u1ea5t trong h\u1ec7 m\u1eb7t tr\u1eddi, thi\u00ean th\u1ec3 l\u1edbn th\u1ee9 9 trong h\u1ec7 m\u1eb7t tr\u1eddi (h\u01a1n c\u1ea3 Sao Th\u1ee7y, d\u00f9 kh\u1ed1i l\u01b0\u1ee3ng ch\u1ec9 b\u1eb1ng m\u1ed9t n\u1eeda Sao Th\u00f9y). N\u00f3 l\u00e0 M\u1eb7t Tr\u0103ng duy nh\u1ea5t s\u1edf h\u1eefu t\u1eeb quy\u1ec3n. C\u1ea5u t\u1ea1o ch\u1ee7 y\u1ebfu t\u1eeb \u0111\u00e1 silicat v\u00e0 n\u01b0\u1edbc \u0111\u00e1, c\u00f3 m\u1ed9t \u0111\u1ea1i d\u01b0\u01a1ng n\u01b0\u1edbc m\u1eb7n d\u00e0y 200km d\u01b0\u1edbi b\u1ec1 m\u1eb7t gi\u1eefa c\u00e1c v\u1ecf l\u1edbp b\u0103ng, Ganymede th\u1ef1c s\u1ef1 l\u00e0 m\u1ed9t th\u1ebf gi\u1edbi b\u0103ng gi\u00e1.<\/p>\n

Callisto, M\u1eb7t Tr\u0103ng c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang cao nh\u1ea5t. Tr\u00ean b\u1ec1 m\u1eb7t c\u1ee7a thi\u00ean th\u1ec3 n\u00e0y c\u00f3 mi\u1ec7ng n\u00fai l\u1eeda l\u1edbn nh\u1ea5t trong H\u1ec7 M\u1eb7t Tr\u1eddi. B\u00ean c\u1ea1nh \u0111\u00f3, n\u00f3 c\u00f2n \u0111\u01b0\u1ee3c bao quanh b\u1edfi m\u1ed9t b\u1ea7u kh\u00f4ng kh\u00ed c\u1ef1c k\u00ec m\u1ecfng. \u1ede \u0111\u1ed9 s\u00e2u kho\u1ea3ng 300km t\u1eeb b\u1ec1 m\u1eb7t, ng\u01b0\u1eddi ta tin r\u1eb1ng c\u00f3 m\u1ed9t \u0111\u1ea1i d\u01b0\u01a1ng \u1edf trong l\u00f2ng Callisto.<\/p>\n

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\u0110i\u1ec1u th\u00fa v\u1ecb l\u00e0, Europa v\u00e0 Callisto l\u00e0 2 n\u01a1i m\u00e0 c\u00e1c nh\u00e0 khoa h\u1ecdc cho r\u1eb1ng c\u00f3 th\u1ec3 t\u00ecm \u0111\u01b0\u1ee3c s\u1ef1 s\u1ed1ng b\u1edfi c\u1ea5u t\u1ea1o c\u1ee7a n\u00f3 kh\u00e1 thu\u1eadn l\u1ee3i (to\u00e0n n\u01b0\u1edbc l\u00e0 n\u01b0\u1edbc), tuy v\u1eady v\u1eabn ch\u01b0a c\u00f3 m\u1ed9t b\u1eb1ng ch\u1ee9ng x\u00e1c \u0111\u00e1ng n\u00e0o cho vi\u1ec7c n\u00e0y c\u1ea3.<\/p>\n

Th\u1ebf l\u00e0 ch\u00fang ta \u0111\u00e3 d\u1ea1o quanh m\u1ed9t v\u00f2ng m\u1ed9t h\u1ec7 m\u1eb7t tr\u1eddi thu nh\u1ecf r\u1ed3i \u0111\u1ea5y!<\/p>\n

\"\"<\/p>\n","protected":false},"excerpt":{"rendered":"

T\u01b0 li\u1ec7u tham kh\u1ea3o t\u1ea1i \u0111\u00e2y: https:\/\/bit.ly\/32izgRB Nghe c\u00f3 v\u1ebb kh\u00e1 l\u00e0 k\u00ec l\u1ea1, nh\u01b0ng c\u00f3 m\u1ed9t H\u1ec7 M\u1eb7t Tr\u1eddi n\u1eb1m trong H\u1ec7 M\u1eb7t Tr\u1eddi c\u1ee7a ch\u00fang ta. T\u1ea5t nhi\u00ean, \u0111\u00e2y ch\u1ec9 l\u00e0 m\u1ed9t c\u00e1ch n\u00f3i v\u00ed von m\u00e0 th\u00f4i. Nh\u01b0ng n\u1ebfu ch\u00fang ta nh\u00ecn v\u00e0o Sao M\u1ed9c v\u00e0 b\u1ed1n M\u1eb7t Tr\u0103ng Galilean \u0111ang quay […]\n","protected":false},"author":1,"featured_media":549,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1,35],"tags":[],"_links":{"self":[{"href":"https:\/\/vietweather.com\/index.php\/wp-json\/wp\/v2\/posts\/548"}],"collection":[{"href":"https:\/\/vietweather.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vietweather.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vietweather.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vietweather.com\/index.php\/wp-json\/wp\/v2\/comments?post=548"}],"version-history":[{"count":2,"href":"https:\/\/vietweather.com\/index.php\/wp-json\/wp\/v2\/posts\/548\/revisions"}],"predecessor-version":[{"id":555,"href":"https:\/\/vietweather.com\/index.php\/wp-json\/wp\/v2\/posts\/548\/revisions\/555"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vietweather.com\/index.php\/wp-json\/wp\/v2\/media\/549"}],"wp:attachment":[{"href":"https:\/\/vietweather.com\/index.php\/wp-json\/wp\/v2\/media?parent=548"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vietweather.com\/index.php\/wp-json\/wp\/v2\/categories?post=548"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vietweather.com\/index.php\/wp-json\/wp\/v2\/tags?post=548"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}