T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 10 – Arkady Leokum<\/p>\n\n\n\n
C\u00f3 nh\u1eefng ng\u00f4i sao trong v\u0169 tr\u1ee5 \u1edf c\u00e1ch xa ch\u00fang ta qu\u00e1 \u0111\u1ebfn n\u1ed7i ch\u00fang ta ch\u1eb3ng th\u1ec3 n\u00e0o bi\u1ebft \u0111\u01b0\u1ee3c kho\u1ea3ng c\u00e1ch v\u00e0 s\u1ed1 l\u01b0\u1ee3ng c\u1ee7a ch\u00fang. Ng\u00f4i sao g\u1ea7n nh\u1ea5t c\u00e1ch tr\u00e1i \u0111\u1ea5t bao xa?<\/p>\n\n\n\n
Kho\u1ea3ng c\u00e1ch t\u1eeb m\u1eb7t tr\u1eddi \u0111\u1ebfn tr\u00e1i \u0111\u1ea5t l\u00e0 150 tri\u1ec7u c\u00e2y s\u1ed1; v\u1eadn t\u1ed1c \u00e1nh s\u00e1ng l\u00e0 300 ng\u00e0n c\u00e2y s\u1ed1 m\u1ed9t gi\u00e2y, nh\u01b0 v\u1eady ph\u1ea3i m\u1ea5t 8 ph\u00fat \u0111\u1ec3 \u00e1nh s\u00e1ng \u0111i t\u1eeb m\u1eb7t tr\u1eddi \u0111\u1ebfn ch\u00fang ta.<\/p>\n\n\n\n
Ng\u00f4i sao g\u1ea7n nh\u1ea5t \u0111\u1ed1i v\u1edbi tr\u00e1i \u0111\u1ea5t l\u00e0 Proxima Cen- tauri v\u00e0 Alpha Centauri. Kho\u1ea3ng c\u00e1ch t\u1eeb hai ng\u00f4i sao n\u00e0y \u0111\u1ebfn tr\u00e1i \u0111\u1ea5t l\u1edbn h\u01a1n kho\u1ea3ng c\u00e1ch t\u1eeb m\u1eb7t tr\u1eddi \u0111\u1ebfn tr\u00e1i \u0111\u1ea5t 270 ng\u00e0n l\u1ea7n. V\u1eady kho\u1ea3ng c\u00e1ch \u0111\u00f3 l\u00e0 150 tri\u1ec7u c\u00e2y s\u1ed1 x 270.000 l\u1ea7n! Ph\u1ea3i m\u1ea5t 4,5 n\u0103m \u00e1nh s\u00e1ng m\u1edbi \u0111\u1ebfn \u0111\u01b0\u1ee3c tr\u00e1i \u0111\u1ea5t!<\/p>\n\n\n\n
Kho\u1ea3ng c\u00e1ch t\u1eeb tr\u00e1i \u0111\u1ea5t \u0111\u1ebfn c\u00e1c v\u00ec sao l\u1edbn \u0111\u1ebfn n\u1ed7i ng\u01b0\u1eddi ta ph\u1ea3i d\u00f9ng \u0111\u01a1n v\u1ecb \u0111o l\u01b0\u1eddng kho\u1ea3ng c\u00e1ch kh\u00f3 m\u00e0 t\u00ednh cho ch\u00ednh x\u00e1c, g\u1ecdi l\u00e0 n\u0103m \u00e1nh s\u00e1ng, t\u1ee9c l\u00e0 qu\u00e3ng \u0111\u01b0\u1eddng \u00e1nh s\u00e1ng ph\u1ea3i \u0111i trong m\u1ed9t n\u0103m. V\u00e0o kho\u1ea3ng 10 t\u1ec9 c\u00e2y s\u1ed1. B\u1ed1n l\u1ea7n r\u01b0\u1ee1i s\u1ed1 \u1ea5y l\u00e0 kho\u1ea3ng c\u00e1ch c\u1ee7a tr\u00e1i \u0111\u1ea5t \u0111\u1ebfn \u0111\u1ebfn v\u1edbi ng\u00f4i sao g\u1ea7n nh\u1ea5t.<\/p>\n\n\n\n
N\u1ebfu kh\u00f4ng d\u00f9ng vi\u1ec5n v\u1ecdng k\u00ednh, m\u1eaft ta ch\u1ec9 th\u1ea5y \u0111\u01b0\u1ee3c kho\u1ea3ng 6.000 ng\u00f4i sao.<\/p>\n\n\n\n
Th\u1eadt ra, n\u1ebfu ch\u1ec9 m\u1ed9t l\u1ea7n nh\u00ecn l\u00ean tr\u1eddi v\u00e0 \u0111\u1ebfm sao b\u1eb1ng k\u00ednh vi\u1ec5n v\u1ecdng, nhi\u1ec1u l\u1eafm c\u0169ng ch\u1ec9 \u0111\u1ebfm \u0111\u01b0\u1ee3c v\u00e0o kho\u1ea3ng tr\u00ean m\u1ed9t ng\u00e0n ng\u00f4i sao. Tuy nhi\u00ean n\u1ebfu d\u00f9ng m\u1ed9t k\u00ednh thi\u00ean v\u0103n c\u1ef1c m\u1ea1nh, ta c\u00f3 th\u1ec3 ch\u1ee5p \u1ea3nh nhi\u1ec1u l\u1ea7n h\u01a1n.<\/p>\n","protected":false},"excerpt":{"rendered":"
T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 10 – Arkady Leokum C\u00f3 nh\u1eefng ng\u00f4i sao trong v\u0169 tr\u1ee5 \u1edf c\u00e1ch xa ch\u00fang ta qu\u00e1 \u0111\u1ebfn n\u1ed7i ch\u00fang ta ch\u1eb3ng th\u1ec3 n\u00e0o bi\u1ebft \u0111\u01b0\u1ee3c kho\u1ea3ng c\u00e1ch v\u00e0 s\u1ed1 l\u01b0\u1ee3ng c\u1ee7a ch\u00fang. Ng\u00f4i sao g\u1ea7n nh\u1ea5t c\u00e1ch tr\u00e1i \u0111\u1ea5t bao xa? Kho\u1ea3ng […]<\/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],"tags":[],"class_list":["post-15892","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15892","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=15892"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15892\/revisions"}],"predecessor-version":[{"id":15893,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15892\/revisions\/15893"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=15892"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=15892"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=15892"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}