Khi lo\u00e0i ng\u01b0\u1eddi h\u01b0\u1edbng t\u1ea7m m\u1eaft t\u1edbi sao H\u1ecfa, c\u00e1c nh\u00e0 khoa h\u1ecdc v\u00e0 chuy\u00ean gia v\u1ec1 \u0111\u1ea1o \u0111\u1ee9c \u0111\u00e3 n\u00eau l\u00ean m\u1ed1i quan ng\u1ea1i v\u1ec1 s\u1ef1 t\u00e0n ph\u00e1 v\u1ec1 m\u1eb7t th\u1ec3 ch\u1ea5t m\u00e0 vi\u1ec7c \u1edf trong kh\u00f4ng gian trong th\u1eddi gian d\u00e0i c\u00f3 th\u1ec3 g\u00e2y ra cho c\u01a1 th\u1ec3 con ng\u01b0\u1eddi. Do c\u00f3 d\u1eef li\u1ec7u h\u1ea1n ch\u1ebf v\u1ec1 t\u00e1c \u0111\u1ed9ng c\u1ee7a c\u00e1c chuy\u1ebfn bay kh\u00f4ng gian \u0111\u01b0\u1eddng d\u00e0i, NASA \u0111ang ti\u1ebfn h\u00e0nh m\u1ed9t th\u00ed nghi\u1ec7m mang t\u00ednh \u0111\u1ed9t ph\u00e1 v\u1edbi nh\u1eefng phi h\u00e0nh gia sinh \u0111\u00f4i Mark v\u00e0 Scott Kelly \u0111\u1ec3 l\u00e0m s\u00e1ng t\u1ecf nh\u1eefng r\u1ee7i ro ti\u1ec1m t\u00e0ng n\u00e0y.<\/p>\n\n
N\u0103m t\u1edbi, Mark v\u00e0 Scott Kelly s\u1ebd b\u1eaft \u0111\u1ea7u m\u1ed9t th\u00ed nghi\u1ec7m k\u00e9o d\u00e0i m\u1ed9t n\u0103m, trong \u0111\u00f3 h\u1ecd s\u1ebd tr\u1ea3i qua c\u00e1c cu\u1ed9c ki\u1ec3m tra y t\u1ebf v\u00e0 theo d\u00f5i nghi\u00eam ng\u1eb7t. Scott s\u1ebd c\u01b0 tr\u00fa tr\u00ean Tr\u1ea1m v\u0169 tr\u1ee5 qu\u1ed1c t\u1ebf, trong khi Mark s\u1ebd \u1edf l\u1ea1i Tr\u00e1i \u0111\u1ea5t v\u1edbi t\u01b0 c\u00e1ch l\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng ki\u1ec3m so\u00e1t. Nghi\u00ean c\u1ee9u \u0111\u1ed9c \u0111\u00e1o n\u00e0y s\u1ebd cung c\u1ea5p nh\u1eefng hi\u1ec3u bi\u1ebft c\u00f3 gi\u00e1 tr\u1ecb v\u1ec1 t\u00e1c \u0111\u1ed9ng c\u1ee7a du h\u00e0nh v\u0169 tr\u1ee5 l\u00ean c\u01a1 th\u1ec3 con ng\u01b0\u1eddi, bao g\u1ed3m m\u1ea5t x\u01b0\u01a1ng v\u00e0 c\u01a1, ti\u1ebfp x\u00fac v\u1edbi b\u1ee9c x\u1ea1 v\u00e0 ch\u1ee9c n\u0103ng c\u1ee7a h\u1ec7 mi\u1ec5n d\u1ecbch.<\/p>\n\n
M\u1ed9t trong nh\u1eefng t\u00e1c \u0111\u1ed9ng n\u1ed5i ti\u1ebfng c\u1ee7a c\u00e1c chuy\u1ebfn bay kh\u00f4ng gian l\u00e0 m\u1ea5t x\u01b0\u01a1ng v\u00e0 c\u01a1. Vi\u1ec7c kh\u00f4ng c\u00f3 tr\u1ecdng l\u1ef1c trong kh\u00f4ng gian khi\u1ebfn c\u01a1 th\u1ec3 m\u1ea5t \u0111i s\u1ee9c \u0111\u1ec1 kh\u00e1ng t\u1ef1 nhi\u00ean v\u1edbi l\u1ef1c n\u00e9n, d\u1eabn \u0111\u1ebfn gi\u1ea3m m\u1eadt \u0111\u1ed9 x\u01b0\u01a1ng v\u00e0 kh\u1ed1i l\u01b0\u1ee3ng c\u01a1. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 g\u00e2y ra nh\u1eefng h\u1eadu qu\u1ea3 \u0111\u00e1ng k\u1ec3 \u0111\u1ed1i v\u1edbi s\u1ee9c kh\u1ecfe l\u00e2u d\u00e0i c\u1ee7a c\u00e1c phi h\u00e0nh gia, l\u00e0m t\u0103ng nguy c\u01a1 b\u1ecb g\u00e3y x\u01b0\u01a1ng v\u00e0 c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 kh\u1ea3 n\u0103ng v\u1eadn \u0111\u1ed9ng.<\/p>\n\n
M\u1ed9t m\u1ed1i quan t\u00e2m l\u1edbn kh\u00e1c li\u00ean quan \u0111\u1ebfn du h\u00e0nh kh\u00f4ng gian l\u00e0 ti\u1ebfp x\u00fac v\u1edbi b\u1ee9c x\u1ea1. C\u00e1c phi h\u00e0nh gia trong kh\u00f4ng gian ti\u1ebfp x\u00fac v\u1edbi m\u1ee9c \u0111\u1ed9 b\u1ee9c x\u1ea1 cao t\u1eeb c\u00e1c tia v\u0169 tr\u1ee5 v\u00e0 c\u00e1c \u0111\u1ee3t b\u00f9ng ph\u00e1t n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi. B\u1ee9c x\u1ea1 n\u00e0y c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng c\u00e1c t\u1ebf b\u00e0o v\u00e0 l\u00e0m t\u0103ng nguy c\u01a1 ung th\u01b0. Th\u00ed nghi\u1ec7m c\u1ee7a NASA v\u1edbi c\u1eb7p song sinh Kelly s\u1ebd gi\u00fap x\u00e1c \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 c\u1ee7a nguy c\u01a1 n\u00e0y v\u00e0 ph\u00e1t tri\u1ec3n c\u00e1c chi\u1ebfn l\u01b0\u1ee3c \u0111\u1ec3 gi\u1ea3m thi\u1ec3u t\u00e1c \u0111\u1ed9ng c\u1ee7a n\u00f3.<\/p>\n\n
H\u1ec7 mi\u1ec5n d\u1ecbch \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c b\u1ea3o v\u1ec7 c\u01a1 th\u1ec3 kh\u1ecfi nhi\u1ec5m tr\u00f9ng. Tuy nhi\u00ean, c\u00e1c chuy\u1ebfn bay kh\u00f4ng gian \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh l\u00e0 c\u00f3 kh\u1ea3 n\u0103ng \u30d5\u30a3\u30b9\u0627\u062d h\u1ec7 mi\u1ec5n d\u1ecbch, khi\u1ebfn c\u00e1c phi h\u00e0nh gia d\u1ec5 m\u1eafc b\u1ec7nh h\u01a1n. Th\u00ed nghi\u1ec7m c\u1ee7a anh em nh\u00e0 Kelly s\u1ebd \u0111i\u1ec1u tra c\u00e1ch du h\u00e0nh kh\u00f4ng gian \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn h\u1ec7 mi\u1ec5n d\u1ecbch v\u00e0 x\u00e1c \u0111\u1ecbnh c\u00e1c c\u00e1ch \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng h\u1ec7 th\u1ed1ng n\u00e0y cho c\u00e1c nhi\u1ec7m v\u1ee5 trong t\u01b0\u01a1ng lai.<\/p>\n\n
M\u1eb7c d\u00f9 c\u00e1c nghi\u00ean c\u1ee9u tr\u00ean c\u1eb7p song sinh cung c\u1ea5p nh\u1eefng hi\u1ec3u bi\u1ebft c\u00f3 gi\u00e1 tr\u1ecb v\u1ec1 t\u00e1c \u0111\u1ed9ng c\u1ee7a c\u00e1c chuy\u1ebfn bay kh\u00f4ng gian, nh\u01b0ng ch\u00fang c\u0169ng c\u00f3 nh\u1eefng h\u1ea1n ch\u1ebf. Nh\u1eefng ng\u01b0\u1eddi sinh \u0111\u00f4i kh\u00f4ng gi\u1ed1ng h\u1ec7t nhau v\u00e0 di truy\u1ec1n c\u0169ng nh\u01b0 kinh nghi\u1ec7m s\u1ed1ng c\u1ee7a h\u1ecd c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn s\u1ef1 thay \u0111\u1ed5i trong k\u1ebft qu\u1ea3. Ngo\u00e0i ra, quy m\u00f4 m\u1eabu nh\u1ecf c\u1ee7a c\u00e1c nghi\u00ean c\u1ee9u tr\u00ean c\u1eb7p song sinh h\u1ea1n ch\u1ebf kh\u1ea3 n\u0103ng t\u1ed5ng qu\u00e1t h\u00f3a c\u1ee7a ch\u00fang.<\/p>\n\n
B\u1ea5t ch\u1ea5p nh\u1eefng h\u1ea1n ch\u1ebf n\u00e0y, th\u00ed nghi\u1ec7m c\u1ee7a anh em nh\u00e0 Kelly \u0111\u01b0\u1ee3c k\u1ef3 v\u1ecdng s\u1ebd \u0111\u01b0a ra nh\u1eefng th\u00f4ng tin chi ti\u1ebft \u0111\u00e1ng k\u1ec3 v\u1ec1 t\u00e1c \u0111\u1ed9ng c\u1ee7a c\u00e1c chuy\u1ebfn bay kh\u00f4ng gian l\u00ean c\u01a1 th\u1ec3 con ng\u01b0\u1eddi. B\u1eb1ng c\u00e1ch so s\u00e1nh t\u00ecnh tr\u1ea1ng s\u1ee9c kh\u1ecfe c\u1ee7a Mark v\u00e0 Scott sau m\u1ed9t n\u0103m trong kh\u00f4ng gian, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u s\u1ebd hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 nh\u1eefng th\u00e1ch th\u1ee9c v\u1ec1 m\u1eb7t sinh l\u00fd m\u00e0 c\u00e1c phi h\u00e0nh gia ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u00e0 ph\u00e1t tri\u1ec3n c\u00e1c chi\u1ebfn l\u01b0\u1ee3c \u0111\u1ec3 b\u1ea3o v\u1ec7 s\u1ee9c kh\u1ecfe c\u1ee7a h\u1ecd trong c\u00e1c nhi\u1ec7m v\u1ee5 t\u01b0\u01a1ng lai t\u1edbi sao H\u1ecfa v\u00e0 xa h\u01a1n n\u1eefa.<\/p>\n\n
Vi\u1ec7c kh\u00e1m ph\u00e1 nh\u1eefng th\u1ebf gi\u1edbi m\u1edbi \u0111i k\u00e8m v\u1edbi nh\u1eefng r\u1ee7i ro c\u1ed1 h\u1eefu, v\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft l\u00e0 ph\u1ea3i c\u00e2n nh\u1eafc nh\u1eefng l\u1ee3i \u00edch ti\u1ec1m n\u0103ng c\u1ee7a vi\u1ec7c kh\u00e1m ph\u00e1 kh\u00f4ng gian so v\u1edbi nh\u1eefng r\u1ee7i ro \u0111\u1ed1i v\u1edbi s\u1ee9c kh\u1ecfe con ng\u01b0\u1eddi. Th\u00ed nghi\u1ec7m c\u1ee7a anh em nh\u00e0 Kelly l\u00e0 m\u1ed9t b\u01b0\u1edbc quan tr\u1ecdng \u0111\u1ec3 gi\u1ea3i quy\u1ebft nh\u1eefng m\u1ed1i quan ng\u1ea1i v\u1ec1 m\u1eb7t \u0111\u1ea1o \u0111\u1ee9c n\u00e0y v\u00e0 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c s\u1ee9 m\u1ec7nh kh\u00f4ng gian trong t\u01b0\u01a1ng lai s\u1ebd \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n v\u1edbi s\u1ef1 c\u1ea9n tr\u1ecdng v\u00e0 c\u00e2n nh\u1eafc t\u1ed1i \u0111a \u0111\u1ebfn s\u1ee9c kh\u1ecfe c\u1ee7a c\u00e1c phi h\u00e0nh gia.<\/p>","protected":false},"excerpt":{"rendered":"
T\u00e1c \u0111\u1ed9ng c\u1ee7a c\u00e1c chuy\u1ebfn bay kh\u00f4ng gian l\u00ean c\u01a1 th\u1ec3 con ng\u01b0\u1eddi: Th\u00ed nghi\u1ec7m k\u00e9o d\u00e0i m\u1ed9t n\u0103m c\u1ee7a NASA v\u1edbi nh\u1eefng phi h\u00e0nh gia sinh \u0111\u00f4i R\u1ee7i ro…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[476],"tags":[22562,3371,434,22563,473,20369,15438,22564],"class_list":["post-17092","post","type-post","status-publish","format-standard","hentry","category-space-science","tag-bone-loss","tag-immune-system","tag-space-exploration","tag-muscle-loss","tag-nasa","tag-twin-studies","tag-human-health","tag-radiation-exposure"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/17092","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=17092"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/17092\/revisions"}],"predecessor-version":[{"id":17093,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/17092\/revisions\/17093"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media?parent=17092"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/categories?post=17092"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/tags?post=17092"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}