{"id":640,"date":"2026-01-18T03:01:17","date_gmt":"2026-01-18T03:01:17","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=640"},"modified":"2026-01-18T03:01:17","modified_gmt":"2026-01-18T03:01:17","slug":"frozen-clay-deposits-mars-south-pole","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/vi\/science\/planetary-exploration\/frozen-clay-deposits-mars-south-pole\/","title":{"rendered":"H\u1ed3 n\u01b0\u1edbc ng\u1ea7m sao H\u1ecfa ho\u00e1 ra l\u00e0\u2026 \u0111\u1ea5t s\u00e9t \u0111\u00f4ng c\u1ee9ng!"},"content":{"rendered":"<h2 class=\"wp-block-heading\"><strong>\u2018H\u1ed3 n\u01b0\u1edbc\u2019 d\u01b0\u1edbi b\u1ec1 m\u1eb7t sao H\u1ecfa c\u00f3 th\u1ec3 l\u00e0 c\u00e1c m\u1ecf \u0111\u1ea5t s\u00e9t \u0111\u00f4ng l\u1ea1nh<\/strong><\/h2>\n\n<h3 class=\"wp-block-heading\"><strong>Cu\u1ed9c t\u00ecm ki\u1ebfm n\u01b0\u1edbc l\u1ecfng tr\u00ean sao H\u1ecfa<\/strong><\/h3>\n\n<p>Cu\u1ed9c s\u0103n t\u00ecm b\u1eb1ng ch\u1ee9ng v\u1ec1 s\u1ef1 s\u1ed1ng trong qu\u00e1 kh\u1ee9 tr\u00ean sao H\u1ecfa \u0111\u00e3 d\u1eabn \u0111\u1ebfn h\u00e0ng lo\u1ea1t nghi\u00ean c\u1ee9u kh\u1ea3 n\u0103ng n\u01b0\u1edbc l\u1ecfng v\u1eabn c\u00f2n t\u1ed3n t\u1ea1i tr\u00ean h\u00e0nh tinh n\u00e0y. Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, m\u1ed9t s\u1ed1 nghi\u00ean c\u1ee9u cho r\u1eb1ng n\u01b0\u1edbc l\u1ecfng c\u00f3 th\u1ec3 n\u1eb1m d\u01b0\u1edbi c\u00e1c l\u1edbp b\u0103ng t\u1ea1i c\u1ef1c nam sao H\u1ecfa.<\/p>\n\n<h3 class=\"wp-block-heading\"><strong>D\u00f2 radar ph\u00e1t hi\u1ec7n h\u1ed3 n\u01b0\u1edbc d\u01b0\u1edbi \u0111\u1ea5t<\/strong><\/h3>\n\n<p>M\u1ed9t trong nh\u1eefng b\u1eb1ng ch\u1ee9ng thuy\u1ebft ph\u1ee5c nh\u1ea5t v\u1ec1 n\u01b0\u1edbc l\u1ecfng tr\u00ean sao H\u1ecfa \u0111\u1ebfn t\u1eeb d\u1eef li\u1ec7u c\u1ee7a thi\u1ebft b\u1ecb Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS) tr\u00ean t\u00e0u qu\u1ef9 Mars Express c\u1ee7a C\u01a1 quan V\u0169 tr\u1ee5 ch\u00e2u \u00c2u. Radar ghi nh\u1eadn t\u00edn hi\u1ec7u m\u1ea1nh v\u00e0 s\u00e1ng t\u1eeb h\u00e0nh tinh \u2013 hi\u1ec7u \u1ee9ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c quy cho s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a n\u01b0\u1edbc.<\/p>\n\n<h3 class=\"wp-block-heading\"><strong>Th\u00e1ch th\u1ee9c v\u1edbi gi thuy\u1ebft n\u01b0\u1edbc l\u1ecfng<\/strong><\/h3>\n\n<p>Tuy nhi\u00ean, sao H\u1ecfa l\u00e0 h\u00e0nh tinh c\u1ef1c l\u1ea1nh, v\u1edbi nhi\u1ec7t \u0111\u1ed9 trung b\u00ecnh \u00e2m 81 \u0111\u1ed9 F (kho\u1ea3ng \u00e2m 63 \u00b0C). \u0110i\u1ec1u n\u00e0y \u0111\u1eb7t c\u00e2u h\u1ecfi l\u00e0m sao n\u01b0\u1edbc l\u1ecfng c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i trong \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t nh\u01b0 v\u1eady. M\u1ed9t s\u1ed1 nh\u00e0 khoa h\u1ecdc \u0111\u1ec1 xu\u1ea5t n\u01b0\u1edbc c\u00f3 th\u1ec3 ch\u1ee9a nhi\u1ec1u mu\u1ed1i ho\u1eb7c \u0111\u01b0\u1ee3c s\u01b0\u1edfi \u1ea5m b\u1edfi ho\u1ea1t \u0111\u1ed9ng \u0111\u1ecba nhi\u1ec7t. Tuy nhi\u00ean, c\u00e1c nghi\u00ean c\u1ee9u cho th\u1ea5y kh\u00f4ng k\u1ecbch b\u1ea3n n\u00e0o kh\u1ea3 thi t\u1ea1i c\u1ef1c nam sao H\u1ecfa.<\/p>\n\n<h3 class=\"wp-block-heading\"><strong>Gi thuy\u1ebft thay th\u1ebf: M\u1ecf \u0111\u1ea5t s\u00e9t \u0111\u00f4ng l\u1ea1nh<\/strong><\/h3>\n\n<p>M\u1ed9t nghi\u00ean c\u1ee9u m\u1edbi tr\u00ean t\u1ea1p ch\u00ed <em>Geophysical Research Letters<\/em> \u0111\u01b0a ra gi\u1ea3 thuy\u1ebft thay th\u1ebf: t\u00edn hi\u1ec7u radar s\u00e1ng m\u00e0 MARSIS ghi nh\u1eadn c\u00f3 th\u1ec3 kh\u00f4ng \u0111\u1ebfn t\u1eeb n\u01b0\u1edbc l\u1ecfng m\u00e0 t\u1eeb c\u00e1c m\u1ecf \u0111\u1ea5t s\u00e9t \u0111\u00f4ng l\u1ea1nh g\u1ecdi l\u00e0 smectit. Smectit l\u00e0 lo\u1ea1i \u0111\u1ea5t s\u00e9t h\u00ecnh th\u00e0nh khi \u0111\u00e1 macma t\u01b0\u01a1ng t\u00e1c v\u1edbi n\u01b0\u1edbc v\u00e0 gi\u1eef l\u01b0\u1ee3ng n\u01b0\u1edbc \u0111\u00e1ng k\u1ec3 trong c\u1ea5u tr\u00fac.<\/p>\n\n<h3 class=\"wp-block-heading\"><strong>B\u1eb1ng ch\u1ee9ng v\u1ec1 smectit tr\u00ean sao H\u1ecfa<\/strong><\/h3>\n\n<p>C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u ph\u00e2n t\u00edch smectit v\u00e0 th\u1ea5y ch\u00fang c\u00f3 th\u1ec3 t\u1ea1o ph\u1ea3n x\u1ea1 radar t\u01b0\u01a1ng t\u1ef1 nh\u01b0 t\u00edn hi\u1ec7u MARSIS ghi nh\u1eadn, ngay c\u1ea3 khi tr\u1ed9n v\u1edbi v\u1eadt li\u1ec7u kh\u00e1c. H\u1ecd c\u0169ng t\u00ecm th\u1ea5y b\u1eb1ng ch\u1ee9ng smectit d\u1ecdc theo c\u1ef1c nam sao H\u1ecfa sau khi ph\u00e2n t\u00edch d\u1eef li\u1ec7u \u00e1nh s\u00e1ng kh\u1ea3 ki\u1ebfn v\u00e0 h\u1ed3ng ngo\u1ea1i t\u1eeb khu v\u1ef1c n\u00e0y.<\/p>\n\n<h3 class=\"wp-block-heading\"><strong>\u00dd ngh\u0129a cho hi\u1ec3u bi\u1ebft v\u1ec1 sao H\u1ecfa<\/strong><\/h3>\n\n<p>Vi\u1ec7c ph\u00e1t hi\u1ec7n smectit tr\u00ean sao H\u1ecfa c\u00f3 \u00fd ngh\u0129a l\u1edbn cho hi\u1ec3u bi\u1ebft v\u1ec1 l\u1ecbch s\u1eed v\u00e0 kh\u1ea3 n\u0103ng c\u01b0 tr\u00fa c\u1ee7a h\u00e0nh tinh. S\u1ef1 hi\u1ec7n di\u1ec7n kho\u00e1ng \u0111\u1ea5t s\u00e9t g\u1ee3i \u00fd c\u1ef1c nam sao H\u1ecfa t\u1eebng \u0111\u1ee7 \u1ea5m \u0111\u1ec3 duy tr\u00ec n\u01b0\u1edbc l\u1ecfng. Theo th\u1eddi gian, \u0111\u1ea5t s\u00e9t b\u1ecb ch\u00f4n v\u00f9i d\u01b0\u1edbi b\u0103ng v\u00e0 b\u1ea3o qu\u1ea3n \u1edf tr\u1ea1ng th\u00e1i \u0111\u00f4ng l\u1ea1nh.<\/p>\n\n<h3 class=\"wp-block-heading\"><strong>Nghi\u00ean c\u1ee9u t\u01b0\u01a1ng lai<\/strong><\/h3>\n\n<p>\u0110\u1ec3 x\u00e1c nh\u1eadn s\u1ef1 hi\u1ec7n di\u1ec7n smectit v\u00e0 x\u00e1c \u0111\u1ecbnh b\u1ea3n ch\u1ea5t c\u00e1c m\u1ecf d\u01b0\u1edbi b\u1ec1 m\u1eb7t t\u1ea1i c\u1ef1c nam sao H\u1ecfa, c\u00e1c nh\u00e0 khoa h\u1ecdc c\u1ea7n thi\u1ebft b\u1ecb tinh vi h\u01a1n c\u00f3 kh\u1ea3 n\u0103ng l\u1ea5y m\u1eabu tr\u1ef1c ti\u1ebfp. C\u00e1c nghi\u00ean c\u1ee9u sau s\u1ebd kh\u1ea3o s\u00e1t \u0111a d\u1ea1ng kho\u00e1ng \u0111\u1ea5t s\u00e9t tr\u00ean sao H\u1ecfa v\u00e0 vai tr\u00f2 ti\u1ec1m n\u0103ng c\u1ee7a ch\u00fang trong c\u00e1c qu\u00e1 tr\u00ecnh \u0111\u1ecba ch\u1ea5t c\u1ee7a h\u00e0nh tinh.<\/p>\n\n<h3 class=\"wp-block-heading\"><strong>Kh\u00e1m ph\u00e1 l\u1edbp d\u01b0\u1edbi b\u1ec1 m\u1eb7t sao H\u1ecfa<\/strong><\/h3>\n\n<p>Cu\u1ed9c t\u00ecm ki\u1ebfm b\u1eb1ng ch\u1ee9ng n\u01b0\u1edbc l\u1ecfng v\u00e0 m\u00f4i tr\u01b0\u1eddng c\u01b0 tr\u00fa tr\u00ean sao H\u1ecfa ti\u1ebfp t\u1ee5c l\u00e0 tr\u1ecdng t\u00e2m th\u00e1m hi\u1ec3m h\u00e0nh tinh. B\u1eb1ng c\u00e1ch nghi\u00ean c\u1ee9u c\u00e1c m\u1ecf d\u01b0\u1edbi b\u1ec1 m\u1eb7t t\u1ea1i c\u1ef1c nam, c\u00e1c nh\u00e0 khoa h\u1ecdc hy v\u1ecdng hi\u1ec3u r\u00f5 h\u01a1n \u0111i\u1ec1u ki\u1ec7n qu\u00e1 kh\u1ee9 v\u00e0 hi\u1ec7n t\u1ea1i c\u1ee7a h\u00e0nh tinh, c\u0169ng nh\u01b0 kh\u1ea3 n\u0103ng h\u1ed7 tr\u1ee3 s\u1ef1 s\u1ed1ng.<\/p>","protected":false},"excerpt":{"rendered":"<p>\u2018H\u1ed3 n\u01b0\u1edbc\u2019 d\u01b0\u1edbi b\u1ec1 m\u1eb7t sao H\u1ecfa c\u00f3 th\u1ec3 l\u00e0 c\u00e1c m\u1ecf \u0111\u1ea5t s\u00e9t \u0111\u00f4ng l\u1ea1nh Cu\u1ed9c t\u00ecm ki\u1ebfm n\u01b0\u1edbc l\u1ecfng tr\u00ean sao H\u1ecfa Cu\u1ed9c s\u0103n t\u00ecm b\u1eb1ng ch\u1ee9ng v\u1ec1&hellip;<\/p>\n","protected":false},"author":1,"featured_media":25212,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1572],"tags":[1571,207,815,811,1216],"class_list":["post-640","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-planetary-exploration","tag-clay-minerals","tag-geology","tag-planetary-science","tag-mars","tag-astrobiology"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/640","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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/comments?post=640"}],"version-history":[{"count":2,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/640\/revisions"}],"predecessor-version":[{"id":25213,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/640\/revisions\/25213"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media\/25212"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media?parent=640"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/categories?post=640"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/tags?post=640"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}