{"id":19058,"date":"2025-07-15T13:12:07","date_gmt":"2025-07-15T06:12:07","guid":{"rendered":"https:\/\/trungvu.net\/?p=19058"},"modified":"2025-07-15T13:12:11","modified_gmt":"2025-07-15T06:12:11","slug":"neu-big-bang-la-co-that-thi-anh-sang-tu-vu-no-do-co-con-khong-chung-ta-co-the-tom-duoc-truoc-khi-chung-bien-mat","status":"publish","type":"post","link":"https:\/\/trungvu.net\/wordpress\/neu-big-bang-la-co-that-thi-anh-sang-tu-vu-no-do-co-con-khong-chung-ta-co-the-tom-duoc-truoc-khi-chung-bien-mat\/","title":{"rendered":"\u201cN\u1ebfu Big Bang l\u00e0 c\u00f3 th\u1eadt, th\u00ec \u00e1nh s\u00e1ng t\u1eeb v\u1ee5 n\u1ed5 \u0111\u00f3 c\u00f3 c\u00f2n kh\u00f4ng? Ch\u00fang ta c\u00f3 th\u1ec3 t\u00f3m \u0111\u01b0\u1ee3c tr\u01b0\u1edbc khi ch\u00fang bi\u1ebfn m\u1ea5t?\u201d"},"content":{"rendered":"\n
\"\u201cN\u1ebfu
\u201cN\u1ebfu Big Bang l\u00e0 c\u00f3 th\u1eadt, th\u00ec \u00e1nh s\u00e1ng t\u1eeb v\u1ee5 n\u1ed5 \u0111\u00f3 c\u00f3 c\u00f2n kh\u00f4ng? Ch\u00fang ta c\u00f3 th\u1ec3 t\u00f3m \u0111\u01b0\u1ee3c tr\u01b0\u1edbc khi ch\u00fang bi\u1ebfn m\u1ea5t?\u201d<\/em><\/figcaption><\/figure>\n\n\n\n

N\u1ebfu Big Bang l\u00e0 c\u00f3 th\u1eadt, nh\u1eefng tia s\u00e1ng t\u1eeb v\u1ee5 n\u1ed5 \u0111\u00f3 c\u00f3 c\u00f2n kh\u00f4ng?<\/strong><\/p>\n\n\n\n

M\u1edf \u0111\u1ea7u<\/strong><\/p>\n\n\n\n

Big Bang \u2013 v\u1ee5 n\u1ed5 l\u1edbn khai sinh ra v\u0169 tr\u1ee5 c\u00e1ch \u0111\u00e2y kho\u1ea3ng 13,8 t\u1ef7 n\u0103m, l\u00e0 m\u1ed9t trong nh\u1eefng l\u00fd thuy\u1ebft n\u1ec1n t\u1ea3ng c\u1ee7a v\u0169 tr\u1ee5 h\u1ecdc hi\u1ec7n \u0111\u1ea1i. Nh\u01b0ng n\u1ebfu v\u1ee5 n\u1ed5 \u0111\u00f3 \u0111\u00e3 di\u1ec5n ra qu\u00e1 l\u00e2u, li\u1ec7u \u00e1nh s\u00e1ng ph\u00e1t ra t\u1eeb th\u1eddi kh\u1eafc \u0111\u1ea7u ti\u00ean c\u00f2n t\u1ed3n t\u1ea1i trong v\u0169 tr\u1ee5 kh\u00f4ng? V\u00e0 n\u1ebfu c\u00f3, ch\u00fang ta c\u00f3 th\u1ec3 t\u00f3m \u0111\u01b0\u1ee3c ch\u00fang tr\u01b0\u1edbc khi bi\u1ebfn m\u1ea5t m\u00e3i m\u00e3i?<\/p>\n\n\n\n

1. \u00c1nh s\u00e1ng t\u1eeb Big Bang l\u00e0 g\u00ec?<\/strong><\/p>\n\n\n\n

Ngay sau v\u1ee5 n\u1ed5 Big Bang, v\u0169 tr\u1ee5 n\u00f3ng v\u00e0 \u0111\u1eb7c \u0111\u1ebfn m\u1ee9c \u00e1nh s\u00e1ng kh\u00f4ng th\u1ec3 tho\u00e1t ra ngo\u00e0i. M\u00e3i \u0111\u1ebfn kho\u1ea3ng 380.000 n\u0103m sau, v\u0169 tr\u1ee5 ngu\u1ed9i \u0111i \u0111\u1ee7 \u0111\u1ec3 t\u1ea1o th\u00e0nh c\u00e1c nguy\u00ean t\u1eed trung h\u00f2a, cho ph\u00e9p \u00e1nh s\u00e1ng \u0111\u1ea7u ti\u00ean lan t\u1ecfa \u2013 th\u1ee9 m\u00e0 ng\u00e0y nay ta g\u1ecdi l\u00e0:<\/p>\n\n\n\n

\ud83d\udd2d <\/strong><\/p>\n\n\n\n

B\u1ee9c x\u1ea1 n\u1ec1n vi s\u00f3ng v\u0169 tr\u1ee5<\/strong><\/p>\n\n\n\n

 (Cosmic Microwave Background \u2013 CMB)<\/strong><\/p>\n\n\n\n

    \n
  • L\u00e0 \u201cd\u1ea5u v\u1ebft\u201d c\u00f2n s\u00f3t l\u1ea1i c\u1ee7a Big Bang.<\/li>\n\n\n\n
  • \u0110\u01b0\u1ee3c ph\u00e1t hi\u1ec7n v\u00e0o n\u0103m 1965 b\u1edfi Penzias v\u00e0 Wilson.<\/li>\n\n\n\n
  • Hi\u1ec7n \u0111ang t\u1ed3n t\u1ea1i kh\u1eafp n\u01a1i trong v\u0169 tr\u1ee5 v\u1edbi nhi\u1ec7t \u0111\u1ed9 kho\u1ea3ng 2,7 K (g\u1ea7n nh\u01b0 tuy\u1ec7t \u0111\u1ed1i).<\/li>\n<\/ul>\n\n\n\n

    2. Nh\u1eefng tia s\u00e1ng t\u1eeb Big Bang c\u00f3 \u0111ang \u201clang thang\u201d?<\/strong><\/p>\n\n\n\n

    C\u00f3! CMB ch\u00ednh l\u00e0 \u00e1nh s\u00e1ng c\u1ed5 x\u01b0a nh\u1ea5t m\u00e0 con ng\u01b0\u1eddi t\u1eebng quan s\u00e1t \u0111\u01b0\u1ee3c. N\u00f3 kh\u00f4ng ch\u1ec9 lang thang, m\u00e0 c\u00f2n tr\u00e0n ng\u1eadp kh\u00f4ng gian \u2013 xuy\u00ean qua m\u1ecdi h\u01b0\u1edbng, m\u1ecdi ng\u00f3c ng\u00e1ch trong v\u0169 tr\u1ee5.<\/p>\n\n\n\n

    \ud83d\udca1 \u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a CMB:<\/strong><\/p>\n\n\n\n

      \n
    • Kh\u00f4ng th\u1ec3 nh\u00ecn th\u1ea5y b\u1eb1ng m\u1eaft th\u01b0\u1eddng, ch\u1ec9 quan s\u00e1t qua k\u00ednh vi\u1ec5n v\u1ecdng vi s\u00f3ng.<\/li>\n\n\n\n
    • \u0110ang d\u1ea7n d\u1ecbch chuy\u1ec3n sang t\u1ea7n s\u1ed1 th\u1ea5p h\u01a1n do v\u0169 tr\u1ee5 gi\u00e3n n\u1edf \u2013 \u0111i\u1ec1u n\u00e0y g\u1ecdi l\u00e0 \u201credshift\u201d (d\u1ecbch \u0111\u1ecf).<\/li>\n<\/ul>\n\n\n\n

      3. Li\u1ec7u ch\u00fang ta c\u00f3 th\u1ec3 \u201ct\u00f3m\u201d \u0111\u01b0\u1ee3c \u00e1nh s\u00e1ng n\u00e0y?<\/strong><\/p>\n\n\n\n

      C\u00e2u tr\u1ea3 l\u1eddi l\u00e0: Ch\u00fang ta \u0111\u00e3 v\u00e0 \u0111ang t\u00f3m \u0111\u01b0\u1ee3c!<\/p>\n\n\n\n

      \ud83d\udef0\ufe0f C\u00e1c s\u1ee9 m\u1ec7nh thu t\u00edn hi\u1ec7u CMB n\u1ed5i b\u1eadt:<\/strong><\/p>\n\n\n\n

        \n
      • COBE (1989) \u2013 NASA: x\u00e1c nh\u1eadn s\u1ef1 t\u1ed3n t\u1ea1i c\u1ee7a CMB.<\/li>\n\n\n\n
      • WMAP (2001) \u2013 cung c\u1ea5p b\u1ea3n \u0111\u1ed3 chi ti\u1ebft \u0111\u1ea7u ti\u00ean c\u1ee7a CMB.<\/li>\n\n\n\n
      • Planck (2009\u20132013) \u2013 c\u1ee7a ESA, \u0111\u1ea1t \u0111\u1ed9 ch\u00ednh x\u00e1c cao ch\u01b0a t\u1eebng c\u00f3.<\/li>\n<\/ul>\n\n\n\n

        Nh\u1edd c\u00e1c s\u1ee9 m\u1ec7nh n\u00e0y, ch\u00fang ta c\u00f3 th\u1ec3 ch\u1ee5p l\u1ea1i \u201cb\u1ee9c \u1ea3nh em b\u00e9\u201d c\u1ee7a v\u0169 tr\u1ee5, ch\u1ec9 380.000 n\u0103m sau khi sinh ra.<\/p>\n\n\n\n

        4. Nh\u01b0ng CMB c\u00f3 th\u1ec3 \u201cbi\u1ebfn m\u1ea5t\u201d kh\u00f4ng?<\/strong><\/p>\n\n\n\n

        C\u00f3 \u2013 nh\u01b0ng kh\u00f4ng ph\u1ea3i s\u1edbm.<\/p>\n\n\n\n

        \u23f3 Trong h\u00e0ng tr\u0103m t\u1ef7 n\u0103m t\u1edbi:<\/strong><\/p>\n\n\n\n

          \n
        • Khi v\u0169 tr\u1ee5 ti\u1ebfp t\u1ee5c gi\u00e3n n\u1edf, CMB s\u1ebd ti\u1ebfp t\u1ee5c \u201cd\u1ecbch \u0111\u1ecf\u201d \u0111\u1ebfn m\u1ee9c kh\u00f4ng c\u00f2n quan s\u00e1t \u0111\u01b0\u1ee3c n\u1eefa.<\/li>\n\n\n\n
        • K\u00ednh thi\u00ean v\u0103n s\u1ebd kh\u00f4ng \u0111\u1ee7 nh\u1ea1y \u0111\u1ec3 ph\u00e1t hi\u1ec7n s\u00f3ng c\u1ef1c d\u00e0i n\u00e0y.<\/li>\n\n\n\n
        • Trong m\u1ed9t v\u0169 tr\u1ee5 gi\u00e0, c\u00e1c n\u1ec1n v\u0103n minh t\u01b0\u01a1ng lai c\u00f3 th\u1ec3 s\u1ebd kh\u00f4ng c\u00f2n bi\u1ebft Big Bang t\u1eebng t\u1ed3n t\u1ea1i!<\/li>\n<\/ul>\n\n\n\n

          \u0110\u00e2y l\u00e0 l\u00fd do t\u1ea1i sao c\u00e1c nh\u00e0 v\u1eadt l\u00fd thi\u00ean v\u0103n hi\u1ec7n nay r\u1ea5t kh\u1ea9n tr\u01b0\u01a1ng thu th\u1eadp c\u00e0ng nhi\u1ec1u d\u1eef li\u1ec7u CMB c\u00e0ng t\u1ed1t \u2013 tr\u01b0\u1edbc khi ch\u00fang \u201ctr\u01b0\u1ee3t kh\u1ecfi t\u1ea7m tay v\u0129nh vi\u1ec5n\u201d.<\/p>\n\n\n\n

          5. T\u1ea1i sao ph\u1ea3i \u201ct\u00f3m\u201d \u00e1nh s\u00e1ng n\u00e0y?<\/strong><\/p>\n\n\n\n

          V\u00ec \u00e1nh s\u00e1ng t\u1eeb Big Bang ch\u1ee9a m\u1ecdi c\u00e2u chuy\u1ec7n g\u1ed1c r\u1ec5 v\u1ec1 v\u0169 tr\u1ee5:<\/p>\n\n\n\n

            \n
          • \ud83d\udd0d C\u00e1ch v\u1eadt ch\u1ea5t ph\u00e2n b\u1ed1 l\u00fac \u0111\u1ea7u ra sao.<\/li>\n\n\n\n
          • \ud83c\udf0c V\u00ec sao c\u00f3 thi\u00ean h\u00e0, c\u1ee5m thi\u00ean h\u00e0, v\u00e0 kho\u1ea3ng tr\u1ed1ng.<\/li>\n\n\n\n
          • \ud83d\udcdc B\u1eb1ng ch\u1ee9ng cho s\u1ef1 t\u1ed3n t\u1ea1i c\u1ee7a v\u1eadt ch\u1ea5t t\u1ed1i, n\u0103ng l\u01b0\u1ee3ng t\u1ed1i.<\/li>\n\n\n\n
          • \ud83e\uddec Ki\u1ec3m ch\u1ee9ng c\u00e1c l\u00fd thuy\u1ebft v\u1eadt l\u00fd t\u1eeb l\u01b0\u1ee3ng t\u1eed \u0111\u1ebfn h\u1ea5p d\u1eabn.<\/li>\n<\/ul>\n\n\n\n

            N\u00f3i c\u00e1ch kh\u00e1c, \u00e1nh s\u00e1ng n\u00e0y ch\u1ee9a b\u1ea3n ghi s\u01a1 khai nh\u1ea5t c\u1ee7a m\u1ecdi th\u1ee9 ch\u00fang ta bi\u1ebft.<\/p>\n\n\n\n

            6. V\u1eady t\u01b0\u01a1ng lai ch\u00fang ta s\u1ebd l\u00e0m g\u00ec?<\/strong><\/p>\n\n\n\n

            C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111ang:<\/p>\n\n\n\n

              \n
            • Ph\u00e1t tri\u1ec3n c\u00e1c k\u00ednh thi\u00ean v\u0103n vi s\u00f3ng th\u1ebf h\u1ec7 ti\u1ebfp theo (nh\u01b0 LiteBIRD, CMB-S4).<\/li>\n\n\n\n
            • T\u00ecm d\u1ea5u v\u1ebft c\u1ee7a s\u00f3ng h\u1ea5p d\u1eabn nguy\u00ean th\u1ee7y t\u1eeb Big Bang \u1ea9n trong CMB.<\/li>\n\n\n\n
            • M\u1edf r\u1ed9ng hi\u1ec3u bi\u1ebft v\u1ec1 v\u0169 tr\u1ee5 s\u01a1 khai v\u00e0 c\u1ea5u tr\u00fac kh\u00f4ng gian \u2013 th\u1eddi gian.<\/li>\n<\/ul>\n\n\n\n

              K\u1ebft lu\u1eadn<\/strong><\/p>\n\n\n\n

              N\u1ebfu Big Bang l\u00e0 c\u00f3 th\u1eadt, th\u00ec \u00e1nh s\u00e1ng t\u1eeb v\u1ee5 n\u1ed5 \u0111\u00f3 v\u1eabn c\u00f2n t\u1ed3n t\u1ea1i \u2013 v\u00e0 ch\u00fang ta \u0111ang \u201ct\u00f3m\u201d n\u00f3 t\u1eebng ch\u00fat m\u1ed9t.<\/p>\n\n\n\n

              Nh\u1eefng tia s\u00e1ng \u0111\u00f3 ch\u00ednh l\u00e0 b\u1ea3n \u0111\u1ed3 v\u0169 tr\u1ee5 s\u01a1 khai, \u0111ang m\u1edd d\u1ea7n theo th\u1eddi gian. V\u00e0 nhi\u1ec7m v\u1ee5 c\u1ee7a nh\u00e2n lo\u1ea1i l\u00e0 ghi l\u1ea1i c\u00e0ng nhi\u1ec1u c\u00e0ng t\u1ed1t, tr\u01b0\u1edbc khi nh\u1eefng t\u00edn hi\u1ec7u \u0111\u1ea7u ti\u00ean c\u1ee7a v\u0169 tr\u1ee5 bi\u1ebfn m\u1ea5t v\u0129nh vi\u1ec5n v\u00e0o kho\u1ea3ng kh\u00f4ng l\u1ea1nh l\u1ebdo v\u00e0 t\u1ed1i t\u0103m.<\/p>\n","protected":false},"excerpt":{"rendered":"

              Big Bang \u2013 v\u1ee5 n\u1ed5 l\u1edbn khai sinh ra v\u0169 tr\u1ee5 c\u00e1ch \u0111\u00e2y kho\u1ea3ng 13,8 t\u1ef7 n\u0103m, l\u00e0 m\u1ed9t trong nh\u1eefng l\u00fd thuy\u1ebft n\u1ec1n t\u1ea3ng c\u1ee7a v\u0169 tr\u1ee5 h\u1ecdc hi\u1ec7n \u0111\u1ea1i. Nh\u01b0ng n\u1ebfu v\u1ee5 n\u1ed5 \u0111\u00f3 \u0111\u00e3 di\u1ec5n ra qu\u00e1 l\u00e2u, li\u1ec7u \u00e1nh s\u00e1ng ph\u00e1t ra t\u1eeb th\u1eddi kh\u1eafc \u0111\u1ea7u ti\u00ean c\u00f2n t\u1ed3n t\u1ea1i trong v\u0169 tr\u1ee5 kh\u00f4ng<\/p>\n","protected":false},"author":1,"featured_media":19059,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[796],"tags":[2153,2149,2151,2152,2150],"class_list":["post-19058","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vu-tru","tag-bien-mat","tag-bigbang","tag-bigbang-co-that-ko","tag-tom-bigbang","tag-vu-no-bigbang"],"yoast_head":"\n\u201cN\u1ebfu Big Bang l\u00e0 c\u00f3 th\u1eadt, th\u00ec \u00e1nh s\u00e1ng t\u1eeb v\u1ee5 n\u1ed5 \u0111\u00f3 c\u00f3 c\u00f2n kh\u00f4ng? - Trungvu.net<\/title>\n<meta name=\"description\" content=\"Big Bang \u2013 v\u1ee5 n\u1ed5 l\u1edbn khai sinh ra v\u0169 tr\u1ee5 c\u00e1ch \u0111\u00e2y kho\u1ea3ng 13,8 t\u1ef7 n\u0103m, l\u00e0 m\u1ed9t trong nh\u1eefng l\u00fd thuy\u1ebft n\u1ec1n t\u1ea3ng c\u1ee7a v\u0169 tr\u1ee5 h\u1ecdc hi\u1ec7n \u0111\u1ea1i. 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