{"id":87431,"date":"2024-09-14T16:39:17","date_gmt":"2024-09-14T21:39:17","guid":{"rendered":"https:\/\/thecitizenfortheworld.com\/?p=87431"},"modified":"2024-09-14T16:39:17","modified_gmt":"2024-09-14T21:39:17","slug":"que-son-los-cinturones-de-van-allen-uno-de-los-mayores-peligros-que-enfrentan-los-astronautas-en-el-espacio","status":"publish","type":"post","link":"https:\/\/thecitizenfortheworld.com\/?p=87431","title":{"rendered":"Qu\u00e9 son los Cinturones de Van Allen, &#8220;uno de los mayores peligros&#8221; que enfrentan los astronautas en el espacio"},"content":{"rendered":"<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\"><b>Dos de los miembros de la tripulaci\u00f3n de la nave Resilience hicieron historia este jueves al caminar en el espacio como parte de la misi\u00f3n Polaris Dawn, la primera financiada enteramente con fondos privados.<\/b><\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">En ella viajan el multimillonario\u00a0<b>Jared Isaacman<\/b>, fundador de la empresa de procesamiento de pagos Shift4, junto con Scott &#8220;Kidd&#8221; Poteet, un piloto retirado de la Fuerza A\u00e9rea, y dos ingenieras de SpaceX, Anna Menon y Sarah Gillis.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">La Polaris Dawn forma parte de un plan de\u00a0<b>SpaceX<\/b>\u00a0para llevar misiones tripuladas \u201chacia la Luna, Marte y m\u00e1s all\u00e1\u201d, seg\u00fan la propia empresa.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">Para llegar a la estrat\u00f3sfera, donde este jueves Isaacman y Gillis realizaron una caminata espacial, la nave tuvo que atravesar los\u00a0<b>Cinturones de Van Allen<\/b>.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">Seg\u00fan la\u00a0<a class=\"focusIndicatorReducedWidth bbc-n8oauk e1p3sufg0\" href=\"https:\/\/science.nasa.gov\/biological-physical\/stories\/van-allen-belts\/\" aria-label=\"Agencia Estadounidense del Aire y el Espacio, externo\">Agencia Estadounidense del Aire y el Espacio<\/a> (NASA, en ingl\u00e9s), son \u201cuno de los mayores peligros\u201d que enfrentan los astronautas.<\/p>\n<\/div>\n<figure class=\"bbc-1qn0xuy\">\n<div class=\"bbc-18ywsw9\"><img decoding=\"async\" loading=\"lazy\" class=\"bbc-139onq\" src=\"https:\/\/ichef.bbci.co.uk\/ace\/ws\/640\/cpsprodpb\/c253\/live\/de55d4a0-713f-11ef-91e7-0f7b0b8339ca.jpg.webp\" sizes=\"(min-width: 1008px) 760px, 100vw\" srcset=\"https:\/\/ichef.bbci.co.uk\/ace\/ws\/240\/cpsprodpb\/c253\/live\/de55d4a0-713f-11ef-91e7-0f7b0b8339ca.jpg.webp 240w, https:\/\/ichef.bbci.co.uk\/ace\/ws\/320\/cpsprodpb\/c253\/live\/de55d4a0-713f-11ef-91e7-0f7b0b8339ca.jpg.webp 320w, https:\/\/ichef.bbci.co.uk\/ace\/ws\/480\/cpsprodpb\/c253\/live\/de55d4a0-713f-11ef-91e7-0f7b0b8339ca.jpg.webp 480w, https:\/\/ichef.bbci.co.uk\/ace\/ws\/624\/cpsprodpb\/c253\/live\/de55d4a0-713f-11ef-91e7-0f7b0b8339ca.jpg.webp 624w, https:\/\/ichef.bbci.co.uk\/ace\/ws\/800\/cpsprodpb\/c253\/live\/de55d4a0-713f-11ef-91e7-0f7b0b8339ca.jpg.webp 800w\" alt=\"El empresario Jared Isaacman durante su caminata.\" width=\"2048\" height=\"1152\" \/><\/p>\n<p class=\"bbc-by8ykd\" role=\"text\"><span class=\"bbc-m04vo2\">Fuente de la imagen, <\/span><span lang=\"en-GB\">EPA<\/span><\/p>\n<\/div><figcaption class=\"bbc-1jsyunq e6i104o0\" dir=\"ltr\"><span role=\"text\"><span class=\"bbc-m04vo2\">Pie de foto, <\/span><span data-testid=\"caption-paragraph\">El multimillonario Jared Isaacman y la ingeniera Sarah Gillis realizaron este jueves la primera caminata espacial comercial de la historia.<\/span><\/span><\/figcaption><\/figure>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">La misi\u00f3n Polaris Dawn logr\u00f3 transitar con \u00e9xito esos cinturones, gracias a la protecci\u00f3n de la nave Resilience y de los trajes espaciales que utilizaron, que fueron recientemente redise\u00f1ados por SpaceX para ser mucho menos voluminosos que los que utiliza la NASA.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">Pero \u00bfqu\u00e9 son los Cinturones de Van Allen y por qu\u00e9 son una preocupaci\u00f3n para los viajes espaciales?<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<h2 id=\"Un-escudo-protector-para-el-planeta\" class=\"bbc-1f03ibc eglt09e0\" tabindex=\"-1\">Un escudo protector para el planeta<\/h2>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">La Tierra est\u00e1 protegida por la\u00a0<b>magnetosfera<\/b>, una<b>\u00a0capa magn\u00e9tica\u00a0<\/b>que se origina del n\u00facleo de hierro del planeta y que atrapa part\u00edculas de radiaci\u00f3n de alta energ\u00eda.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">Tiene la funci\u00f3n de prevenir los efectos da\u00f1inos que las tormentas y el viento solar pueden provocar en la tecnolog\u00eda y los seres humanos.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">Las part\u00edculas de radiaci\u00f3n atra\u00eddas por la magnetosfera forman dos cinturones, conocidos como los\u00a0<b>Cinturones de Van Allen<\/b>, que rodean nuestro planeta en forma de donas.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">De acuerdo con la NASA, un primer cintur\u00f3n exterior &#8220;est\u00e1 formado por miles de millones de part\u00edculas de alta energ\u00eda que se originan en el Sol y un segundo cintur\u00f3n interior resulta de las interacciones de los rayos c\u00f3smicos con la atm\u00f3sfera de la Tierra&#8221;.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">Para llegar al espacio exterior, los astronautas<b>\u00a0deben atravesar los cinturones<\/b>, pero lo hacen con rapidez para limitar su exposici\u00f3n a la radiaci\u00f3n.<\/p>\n<\/div>\n<figure class=\"bbc-1qn0xuy\">\n<div class=\"bbc-18ywsw9\"><img decoding=\"async\" loading=\"lazy\" class=\"bbc-139onq\" src=\"https:\/\/ichef.bbci.co.uk\/ace\/ws\/640\/cpsprodpb\/eff1\/live\/e30a34f0-713f-11ef-b282-4535eb84fe4b.jpg.webp\" sizes=\"(min-width: 1008px) 760px, 100vw\" srcset=\"https:\/\/ichef.bbci.co.uk\/ace\/ws\/240\/cpsprodpb\/eff1\/live\/e30a34f0-713f-11ef-b282-4535eb84fe4b.jpg.webp 240w, https:\/\/ichef.bbci.co.uk\/ace\/ws\/320\/cpsprodpb\/eff1\/live\/e30a34f0-713f-11ef-b282-4535eb84fe4b.jpg.webp 320w, https:\/\/ichef.bbci.co.uk\/ace\/ws\/480\/cpsprodpb\/eff1\/live\/e30a34f0-713f-11ef-b282-4535eb84fe4b.jpg.webp 480w, https:\/\/ichef.bbci.co.uk\/ace\/ws\/624\/cpsprodpb\/eff1\/live\/e30a34f0-713f-11ef-b282-4535eb84fe4b.jpg.webp 624w, https:\/\/ichef.bbci.co.uk\/ace\/ws\/800\/cpsprodpb\/eff1\/live\/e30a34f0-713f-11ef-b282-4535eb84fe4b.jpg.webp 800w\" alt=\"c\u00e1psula resilience despega en cabo ca\u00f1averal \" width=\"1024\" height=\"683\" \/><\/p>\n<p class=\"bbc-by8ykd\" role=\"text\"><span class=\"bbc-m04vo2\">Fuente de la imagen, <\/span><span lang=\"en-GB\">Getty Images<\/span><\/p>\n<\/div><figcaption class=\"bbc-1jsyunq e6i104o0\" dir=\"ltr\"><span role=\"text\"><span class=\"bbc-m04vo2\">Pie de foto, <\/span><span data-testid=\"caption-paragraph\">La tripulaci\u00f3n de Polaris Dawn viaj\u00f3 en la c\u00e1psula Resilience, que despeg\u00f3 desde Cabo Ca\u00f1averal, en Florida.<\/span><\/span><\/figcaption><\/figure>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<h2 id=\"El-riesgo\" class=\"bbc-1f03ibc eglt09e0\" tabindex=\"-1\">El riesgo<\/h2>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">Pier Jiggens, un investigador de la\u00a0<a class=\"focusIndicatorReducedWidth bbc-n8oauk e1p3sufg0\" href=\"https:\/\/blogs.esa.int\/orion\/2022\/12\/10\/the-van-allen-belts-are-they-dangerous\/\" aria-label=\"Agencia Espacial Europea , externo\">Agencia Espacial Europea\u00a0<\/a>(ESA, en ingl\u00e9s) que es especialista en radiaci\u00f3n espacial y dise\u00f1o de naves, coment\u00f3 en un blog publicado por esa misma organizaci\u00f3n que existen dos riesgos para los astronautas al cruzar los Cinturones de Van Allen.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">Seg\u00fan el cient\u00edfico, los astronautas podr\u00edan sufrir lo que llam\u00f3 &#8220;efectos deterministas&#8221;, que se dan por una exposici\u00f3n de bajo nivel a la radiaci\u00f3n por un largo periodo de tiempo o por una radiaci\u00f3n de alto nivel en un corto plazo.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">&#8220;Provocan trastornos en el sistema nervioso central, supresi\u00f3n de la hematopoyesis en la m\u00e9dula \u00f3sea, cataratas y otros problemas de visi\u00f3n, y enfermedad aguda por radiaci\u00f3n, que ser\u00eda un riesgo significativo en las actividades extravehiculares (EVAs, o paseos espaciales)&#8221;, coment\u00f3.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">En segundo lugar, habl\u00f3 sobre los llamados &#8220;efectos estoc\u00e1sticos&#8221; o enfermedades que podr\u00edan o no padecer los astronautas en un futuro, como el c\u00e1ncer.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">Jiggens dice que como los cient\u00edficos<b>\u00a0conocen los Cinturones de de Van Allen<\/b>, pueden proporcionar material de protecci\u00f3n para las tripulaciones, y si alguien se ve afectado \u201ces porque es una misi\u00f3n muy mal planificada\u201d.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">Seg\u00fan el cient\u00edfico, los expertos emplean distintos materiales para proteger a los astronautas, que van desde el propio aluminio del que est\u00e1n hechas las naves, hasta pl\u00e1sticos, polietileno, agua y, m\u00e1s recientemente, litio.<\/p>\n<\/div>\n<figure class=\"bbc-1qn0xuy\">\n<div class=\"bbc-18ywsw9\"><img decoding=\"async\" loading=\"lazy\" class=\"bbc-139onq\" src=\"https:\/\/ichef.bbci.co.uk\/ace\/ws\/640\/cpsprodpb\/f3c2\/live\/f028aa90-713f-11ef-8c1a-df523ba43a9a.jpg.webp\" sizes=\"(min-width: 1008px) 760px, 100vw\" srcset=\"https:\/\/ichef.bbci.co.uk\/ace\/ws\/240\/cpsprodpb\/f3c2\/live\/f028aa90-713f-11ef-8c1a-df523ba43a9a.jpg.webp 240w, https:\/\/ichef.bbci.co.uk\/ace\/ws\/320\/cpsprodpb\/f3c2\/live\/f028aa90-713f-11ef-8c1a-df523ba43a9a.jpg.webp 320w, https:\/\/ichef.bbci.co.uk\/ace\/ws\/480\/cpsprodpb\/f3c2\/live\/f028aa90-713f-11ef-8c1a-df523ba43a9a.jpg.webp 480w, https:\/\/ichef.bbci.co.uk\/ace\/ws\/624\/cpsprodpb\/f3c2\/live\/f028aa90-713f-11ef-8c1a-df523ba43a9a.jpg.webp 624w, https:\/\/ichef.bbci.co.uk\/ace\/ws\/800\/cpsprodpb\/f3c2\/live\/f028aa90-713f-11ef-8c1a-df523ba43a9a.jpg.webp 800w\" alt=\"ilustraci\u00f3n de los cinturones de van allen \" width=\"1280\" height=\"720\" \/><\/p>\n<p class=\"bbc-by8ykd\" role=\"text\"><span class=\"bbc-m04vo2\">Fuente de la imagen, <\/span><span lang=\"en-GB\">NASA<\/span><\/p>\n<\/div><figcaption class=\"bbc-1jsyunq e6i104o0\" dir=\"ltr\"><span role=\"text\"><span class=\"bbc-m04vo2\">Pie de foto, <\/span><span data-testid=\"caption-paragraph\">Una de las primeras ilustraciones de los Cinturones de Van Allen, descubiertos en 1958.<\/span><\/span><\/figcaption><\/figure>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<h2 id=\"El-hito-de-Van-Allen\" class=\"bbc-1f03ibc eglt09e0\" tabindex=\"-1\">El hito de Van Allen<\/h2>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">Los anillos llevan el apellido de<b>\u00a0James Van Allen<\/b>, el cient\u00edfico que los descubri\u00f3.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">Van Allen, quien era profesor de f\u00edsica de la Universidad de Iowa, elabor\u00f3 junto a varios estudiantes una serie de instrumentos para detectar micrometeoritos y rayos c\u00f3smicos que fueron lanzados al espacio en los sat\u00e9lites Explorer 1 y Explorer 3 en enero de 1958.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">El Explorer 1 fue el primer sat\u00e9lite artificial lanzado al espacio, algo que fue posible gracias a un programa de investigaci\u00f3n internacional impulsado por el cient\u00edfico.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">Con los datos de estos instrumentos descubrieron el cintur\u00f3n interno. Luego, en julio de ese a\u00f1o lanzaron el Explorer IV y en diciembre La Pioneer 3, que dieron paso al descubrimiento del anillo externo.<\/p>\n<\/div>\n<figure class=\"bbc-1qn0xuy\">\n<div class=\"bbc-18ywsw9\"><img decoding=\"async\" loading=\"lazy\" class=\"bbc-139onq\" src=\"https:\/\/ichef.bbci.co.uk\/ace\/ws\/640\/cpsprodpb\/7035\/live\/f399dc80-713f-11ef-b282-4535eb84fe4b.jpg.webp\" sizes=\"(min-width: 1008px) 760px, 100vw\" srcset=\"https:\/\/ichef.bbci.co.uk\/ace\/ws\/240\/cpsprodpb\/7035\/live\/f399dc80-713f-11ef-b282-4535eb84fe4b.jpg.webp 240w, https:\/\/ichef.bbci.co.uk\/ace\/ws\/320\/cpsprodpb\/7035\/live\/f399dc80-713f-11ef-b282-4535eb84fe4b.jpg.webp 320w, https:\/\/ichef.bbci.co.uk\/ace\/ws\/480\/cpsprodpb\/7035\/live\/f399dc80-713f-11ef-b282-4535eb84fe4b.jpg.webp 480w, https:\/\/ichef.bbci.co.uk\/ace\/ws\/624\/cpsprodpb\/7035\/live\/f399dc80-713f-11ef-b282-4535eb84fe4b.jpg.webp 624w, https:\/\/ichef.bbci.co.uk\/ace\/ws\/800\/cpsprodpb\/7035\/live\/f399dc80-713f-11ef-b282-4535eb84fe4b.jpg.webp 800w\" alt=\"james van allen \" width=\"1024\" height=\"791\" \/><\/p>\n<p class=\"bbc-by8ykd\" role=\"text\"><span class=\"bbc-m04vo2\">Fuente de la imagen, <\/span><span lang=\"en-GB\">Getty Images<\/span><\/p>\n<\/div><figcaption class=\"bbc-1jsyunq e6i104o0\" dir=\"ltr\"><span role=\"text\"><span class=\"bbc-m04vo2\">Pie de foto, <\/span><span data-testid=\"caption-paragraph\">James Van Allen fue un profesor de f\u00edsica en la Universidad de Iowa.<\/span><\/span><\/figcaption><\/figure>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">Seg\u00fan una publicaci\u00f3n de la NASA, los c\u00e1lculos de Van Allen establecieron que era posible viajar a trav\u00e9s de las regiones de menor radiaci\u00f3n de los cinturones para alcanzar el espacio exterior.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">En 1968, la misi\u00f3n Apolo 8 de la NASA fue la primera nave espacial tripulada en volar m\u00e1s all\u00e1 de los cinturones.<\/p>\n<\/div>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\">En 2012, la agencia estadounidense descubri\u00f3<b>\u00a0un tercer cintur\u00f3n<\/b>, pero que aparece de forma transitoria en funci\u00f3n de la actividad solar.<\/p>\n<\/div>\n<figure class=\"bbc-1qn0xuy\"><\/figure>\n<div class=\"bbc-19j92fr ebmt73l0\" dir=\"ltr\">\n<p class=\"bbc-hhl7in e17g058b0\" dir=\"ltr\"><i class=\"bbc-h1y5j7 eih42320\">(Con informaci\u00f3n de BBC News Mundo.)<\/i><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Dos de los miembros de la tripulaci\u00f3n de la nave Resilience hicieron historia este jueves al caminar en el espacio como parte de la misi\u00f3n Polaris Dawn, la primera financiada enteramente con fondos privados. En ella viajan el multimillonario\u00a0Jared Isaacman, fundador de la empresa de procesamiento de pagos Shift4, junto con Scott &#8220;Kidd&#8221; Poteet, un [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":87432,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_mi_skip_tracking":false},"categories":[7],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Qu\u00e9 son los Cinturones de Van Allen, &quot;uno de los mayores peligros&quot; que enfrentan los astronautas en el espacio - The citizen for the world<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/thecitizenfortheworld.com\/?p=87431\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Qu\u00e9 son los Cinturones de Van Allen, &quot;uno de los mayores peligros&quot; que enfrentan los astronautas en el espacio - The citizen for the world\" \/>\n<meta property=\"og:description\" content=\"Dos de los miembros de la tripulaci\u00f3n de la nave Resilience hicieron historia este jueves al caminar en el espacio como parte de la misi\u00f3n Polaris Dawn, la primera financiada enteramente con fondos privados. 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