{"id":2295,"date":"2026-01-26T12:27:20","date_gmt":"2026-01-26T12:27:20","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=2295"},"modified":"2026-01-26T12:27:20","modified_gmt":"2026-01-26T12:27:20","slug":"gravitational-waves-ripples-in-the-fabric-of-space-time","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/vi\/science\/astrophysics\/gravitational-waves-ripples-in-the-fabric-of-space-time\/","title":{"rendered":"S\u00f3ng H\u1ea5p D\u1eabn \u2013 G\u1ee3n Nh\u1eb9 Tr\u00ean Bi\u1ec3n V\u0169 Tr\u1ee5 C\u1ee7a Einstein"},"content":{"rendered":"<h2 class=\"wp-block-heading\">S\u00f3ng H\u1ea5p D\u1eabn: Nh\u1eefng G\u1ee3n S\u00f3ng Tr\u00ean V\u1ea3i Kh\u00f4ng-Th\u1eddi Gian<\/h2>\n\n<h2 class=\"wp-block-heading\">S\u00f3ng h\u1ea5p d\u1eabn l\u00e0 g\u00ec?<\/h2>\n\n<p>H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng v\u0169 tr\u1ee5 nh\u01b0 m\u1ed9t \u0111\u1ea1i d\u01b0\u01a1ng m\u00eanh m\u00f4ng. S\u00f3ng h\u1ea5p d\u1eabn ch\u00ednh l\u00e0 nh\u1eefng g\u1ee3n s\u00f3ng t\u1ea1o ra khi m\u1ed9t v\u1eadt th\u1ec3 r\u01a1i xu\u1ed1ng n\u01b0\u1edbc. Theo thuy\u1ebft t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee7a Albert Einstein, nh\u1eefng v\u1eadt th\u1ec3 c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn trong kh\u00f4ng gian, ch\u1eb3ng h\u1ea1n nh\u01b0 sao neutron v\u00e0 l\u1ed7 \u0111en, c\u00f3 th\u1ec3 t\u1ea1o ra nh\u1eefng g\u1ee3n s\u00f3ng n\u00e0y khi ch\u00fang t\u0103ng t\u1ed1c. Nh\u1eefng g\u1ee3n s\u00f3ng n\u00e0y lan truy\u1ec1n qua c\u1ea5u tr\u00fac kh\u00f4ng-th\u1eddi gian, mang theo th\u00f4ng tin v\u1ec1 c\u00e1c v\u1eadt th\u1ec3 \u0111\u00e3 t\u1ea1o ra ch\u00fang.<\/p>\n\n<h2 class=\"wp-block-heading\">T\u1ea1i sao s\u00f3ng h\u1ea5p d\u1eabn l\u1ea1i quan tr\u1ecdng?<\/h2>\n\n<p>S\u00f3ng h\u1ea5p d\u1eabn quan tr\u1ecdng v\u00ec nhi\u1ec1u l\u00fd do:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Ch\u00fang cung c\u1ea5p th\u00eam b\u1eb1ng ch\u1ee9ng cho thuy\u1ebft t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee7a Einstein.<\/li>\n<li>Ch\u00fang cho ph\u00e9p c\u00e1c nh\u00e0 khoa h\u1ecdc nghi\u00ean c\u1ee9u nh\u1eefng hi\u1ec7n t\u01b0\u1ee3ng b\u00ed \u1ea9n trong v\u0169 tr\u1ee5, nh\u01b0 l\u1ed7 \u0111en v\u00e0 sao neutron.<\/li>\n<li>Ch\u00fang c\u00f3 th\u1ec3 gi\u00fap ch\u00fang ta hi\u1ec3u r\u00f5 v\u0169 tr\u1ee5 s\u01a1 khai v\u00e0 V\u1ee5 N\u1ed5 L\u1edbn.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">C\u00e1c nh\u00e0 khoa h\u1ecdc s\u0103n s\u00f3ng h\u1ea5p d\u1eabn nh\u01b0 th\u1ebf n\u00e0o?<\/h2>\n\n<p>H\u1ea7u h\u1ebft c\u00e1c m\u00e1y d\u00f2 s\u00f3ng h\u1ea5p d\u1eabn \u0111\u1ec1u ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch \u0111o nh\u1eefng thay \u0111\u1ed5i c\u1ef1c nh\u1ecf v\u1ec1 kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c v\u1eadt th\u1ec3 \u0111\u01b0\u1ee3c t\u00e1ch ra m\u1ed9t kho\u1ea3ng c\u00e1ch x\u00e1c \u0111\u1ecbnh. N\u1ebfu m\u1ed9t s\u00f3ng h\u1ea5p d\u1eabn \u0111i qua Tr\u00e1i \u0110\u1ea5t, n\u00f3 s\u1ebd g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng gi\u00e3n ho\u1eb7c co kh\u00f4ng-th\u1eddi gian m\u1ed9t c\u00e1ch nh\u1eb9 nh\u00e0ng, v\u00e0 c\u00e1c thi\u1ebft b\u1ecb n\u00e0y c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n ra \u0111i\u1ec1u \u0111\u00f3.<\/p>\n\n<p>M\u1ed9t trong nh\u1eefng m\u00e1y d\u00f2 s\u00f3ng h\u1ea5p d\u1eabn n\u1ed5i ti\u1ebfng nh\u1ea5t l\u00e0 LIGO (\u0110\u00e0i quan s\u00e1t s\u00f3ng h\u1ea5p d\u1eabn b\u1eb1ng giao thoa k\u1ebf laser). LIGO c\u00f3 hai m\u00e1y d\u00f2 c\u00e1ch nhau g\u1ea7n 3.200 km, v\u00e0 n\u00f3 k\u1ebft h\u1ee3p d\u1eef li\u1ec7u t\u1eeb 75 \u0111\u00e0i quan s\u00e1t tr\u00ean kh\u1eafp th\u1ebf gi\u1edbi \u0111\u1ec3 ph\u00e1t hi\u1ec7n v\u00e0 \u0111\u1ecbnh v\u1ecb c\u00e1c t\u00edn hi\u1ec7u s\u00f3ng h\u1ea5p d\u1eabn ti\u1ec1m n\u0103ng.<\/p>\n\n<h2 class=\"wp-block-heading\">Th\u00e1ch th\u1ee9c trong vi\u1ec7c ph\u00e1t hi\u1ec7n s\u00f3ng h\u1ea5p d\u1eabn<\/h2>\n\n<p>S\u00f3ng h\u1ea5p d\u1eabn c\u1ef1c k\u1ef3 y\u1ebfu v\u00e0 kh\u00f3 ph\u00e1t hi\u1ec7n. L\u00fd do l\u00e0 v\u00ec ngu\u1ed3n ph\u00e1t s\u00f3ng h\u1ea5p d\u1eabn th\u01b0\u1eddng \u1edf r\u1ea5t xa, v\u00e0 c\u00e1c s\u00f3ng n\u00e0y suy y\u1ebfu d\u1ea7n khi truy\u1ec1n qua kh\u00f4ng gian. Ngo\u00e0i ra, c\u00e1c t\u00edn hi\u1ec7u kh\u00e1c nh\u01b0 nhi\u1ec5u \u0111\u1ecba ch\u1ea5n v\u00e0 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a con ng\u01b0\u1eddi c\u0169ng c\u00f3 th\u1ec3 g\u00e2y nhi\u1ec5u.<\/p>\n\n<h2 class=\"wp-block-heading\">Nh\u1eefng b\u00e1o \u0111\u1ed9ng sai trong qu\u00e1 kh\u1ee9<\/h2>\n\n<p>N\u0103m 2014, c\u00e1c nh\u00e0 khoa h\u1ecdc l\u00e0m vi\u1ec7c v\u1edbi \u0111\u00e0i quan s\u00e1t BICEP2 g\u1ea7n Nam C\u1ef1c tuy\u00ean b\u1ed1 \u0111\u00e3 t\u00ecm th\u1ea5y b\u1eb1ng ch\u1ee9ng v\u1ec1 s\u00f3ng h\u1ea5p d\u1eabn t\u1eeb bu\u1ed5i b\u00ecnh minh c\u1ee7a v\u0169 tr\u1ee5. Tuy nhi\u00ean, sau \u0111\u00f3 ph\u00e1t hi\u1ec7n \u0111\u00e2y ch\u1ec9 l\u00e0 b\u00e1o \u0111\u1ed9ng sai do b\u1ee5i v\u0169 tr\u1ee5 g\u00e2y ra. LIGO c\u0169ng t\u1eebng ghi nh\u1eadn nh\u1eefng d\u01b0\u01a1ng t\u00ednh gi\u1ea3 trong qu\u00e1 kh\u1ee9.<\/p>\n\n<h2 class=\"wp-block-heading\">Th\u00f4ng b\u00e1o s\u1eafp t\u1edbi v\u00e0 nh\u1eefng h\u1ec7 qu\u1ea3<\/h2>\n\n<p>V\u00e0o th\u1ee9 N\u0103m, c\u00e1c nh\u00e0 khoa h\u1ecdc t\u1eeb LIGO d\u1ef1 ki\u1ebfn s\u1ebd \u0111\u01b0a ra m\u1ed9t th\u00f4ng b\u00e1o l\u1edbn li\u00ean quan \u0111\u1ebfn vi\u1ec7c ph\u00e1t hi\u1ec7n s\u00f3ng h\u1ea5p d\u1eabn. D\u00f9 chi ti\u1ebft v\u1eabn ch\u01b0a \u0111\u01b0\u1ee3c h\u00e9 l\u1ed9, th\u00f4ng b\u00e1o n\u00e0y c\u00f3 th\u1ec3 c\u00f3 \u1ea3nh h\u01b0\u1edfng to l\u1edbn \u0111\u1ebfn c\u00e1ch ch\u00fang ta hi\u1ec3u v\u0169 tr\u1ee5.<\/p>\n\n<p>N\u1ebfu LIGO th\u1ef1c s\u1ef1 \u0111\u00e3 ph\u00e1t hi\u1ec7n \u0111\u01b0\u1ee3c s\u00f3ng h\u1ea5p d\u1eabn, \u0111\u00e2y s\u1ebd l\u00e0 m\u1ed9t b\u01b0\u1edbc \u0111\u1ed9t ph\u00e1 khoa h\u1ecdc l\u1edbn. N\u00f3 s\u1ebd x\u00e1c nh\u1eadn thuy\u1ebft t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee7a Einstein v\u00e0 m\u1edf ra nh\u1eefng kh\u1ea3 n\u0103ng m\u1edbi trong vi\u1ec7c nghi\u00ean c\u1ee9u v\u0169 tr\u1ee5. S\u00f3ng h\u1ea5p d\u1eabn c\u00f3 th\u1ec3 gi\u00fap ch\u00fang ta t\u00ecm hi\u1ec3u th\u00eam v\u1ec1 l\u1ed7 \u0111en, sao neutron v\u00e0 v\u0169 tr\u1ee5 s\u01a1 khai. Ch\u00fang c\u0169ng c\u00f3 th\u1ec3 mang l\u1ea1i c\u00e1i nh\u00ecn m\u1edbi v\u1ec1 b\u1ea3n ch\u1ea5t c\u1ee7a ch\u00ednh l\u1ef1c h\u1ea5p d\u1eabn.<\/p>\n\n<h2 class=\"wp-block-heading\">C\u00e1c ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c \u0111\u1ec3 ph\u00e1t hi\u1ec7n s\u00f3ng h\u1ea5p d\u1eabn<\/h2>\n\n<p>Ngo\u00e0i LIGO, c\u00e1c ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c c\u0169ng \u0111ang \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n \u0111\u1ec3 ph\u00e1t hi\u1ec7n s\u00f3ng h\u1ea5p d\u1eabn, bao g\u1ed3m vi\u1ec7c s\u1eed d\u1ee5ng \u0111\u1ed3ng h\u1ed3 nguy\u00ean t\u1eed c\u1ef1c nh\u1ea1y v\u00e0 ph\u00f3ng v\u1ec7 tinh v\u00e0o kh\u00f4ng gian.<\/p>\n\n<h2 class=\"wp-block-heading\">T\u01b0\u01a1ng lai c\u1ee7a nghi\u00ean c\u1ee9u s\u00f3ng h\u1ea5p d\u1eabn<\/h2>\n\n<p>Vi\u1ec7c ph\u00e1t hi\u1ec7n s\u00f3ng h\u1ea5p d\u1eabn s\u1ebd l\u00e0 m\u1ed9t c\u1ed9t m\u1ed1c quan tr\u1ecdng trong v\u1eadt l\u00fd h\u1ecdc. N\u00f3 s\u1ebd m\u1edf ra nh\u1eefng h\u01b0\u1edbng nghi\u00ean c\u1ee9u m\u1edbi v\u00e0 gi\u00fap ch\u00fang ta hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 v\u0169 tr\u1ee5. C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111ang n\u00f3ng l\u00f2ng ch\u1edd \u0111\u1ee3i th\u00f4ng b\u00e1o s\u1eafp t\u1edbi c\u1ee7a LIGO v\u00e0 l\u1ea1c quan r\u1eb1ng n\u00f3 s\u1ebd cung c\u1ea5p th\u00eam b\u1eb1ng ch\u1ee9ng v\u1ec1 s\u1ef1 t\u1ed3n t\u1ea1i c\u1ee7a s\u00f3ng h\u1ea5p d\u1eabn.<\/p>","protected":false},"excerpt":{"rendered":"<p>S\u00f3ng H\u1ea5p D\u1eabn: Nh\u1eefng G\u1ee3n S\u00f3ng Tr\u00ean V\u1ea3i Kh\u00f4ng-Th\u1eddi Gian S\u00f3ng h\u1ea5p d\u1eabn l\u00e0 g\u00ec? H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng v\u0169 tr\u1ee5 nh\u01b0 m\u1ed9t \u0111\u1ea1i d\u01b0\u01a1ng m\u00eanh m\u00f4ng. S\u00f3ng h\u1ea5p d\u1eabn ch\u00ednh&hellip;<\/p>\n","protected":false},"author":2,"featured_media":25228,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[958],"tags":[3134,1441,4742,613,3360,3132,4741,2169,3671],"class_list":["post-2295","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-astrophysics","tag-ligo","tag-black-holes","tag-neutron-stars","tag-scientific-discovery","tag-relativity","tag-gravitational-waves","tag-space-time","tag-universe","tag-cosmos"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/2295","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/comments?post=2295"}],"version-history":[{"count":2,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/2295\/revisions"}],"predecessor-version":[{"id":25229,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/2295\/revisions\/25229"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media\/25228"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media?parent=2295"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/categories?post=2295"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/tags?post=2295"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}