{"id":1137,"date":"2004-11-16T10:30:00","date_gmt":"2004-11-16T09:30:00","guid":{"rendered":"https:\/\/kids.esa.int\/death_of_the_dinosaurs\/"},"modified":"2026-10-08T00:36:26","modified_gmt":"2026-10-07T22:36:26","slug":"death_of_the_dinosaurs","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/es\/death_of_the_dinosaurs\/","title":{"rendered":"La desaparici\u00f3n de los dinosaurios"},"content":{"rendered":"
\n

La Tierra es una diana en movimiento en una galer\u00eda de tiro al blanco. Casi todos los d\u00edas, peque\u00f1os pedazos de roca del espacio pasan a unos pocos millones de kil\u00f3metros de nuestro planeta, a menudo sin ser vistos. Algunas veces llegan a estar m\u00e1s cerca que la Luna.<\/p>\n<\/div>\n

Los cient\u00edficos creen que cerca de la Tierra pueden existir unos 100.000 asteroides de m\u00e1s de 100 metros de di\u00e1metro, el tama\u00f1o de un campo de f\u00fatbol. Se han descubierto m\u00e1s de 600 objetos de un tama\u00f1o mayor de 1 km y que, en su trayecto, pasan cerca de la Tierra. Todav\u00eda quedan cientos por descubrir.<\/p>\n

Una vez cada varios miles de a\u00f1os, se produce una colisi\u00f3n entre un asteroide y nuestro planeta. La m\u00e1s reciente ocurri\u00f3 en Siberia en 1908, cuando un peque\u00f1o asteroide arras\u00f3 m\u00e1s de 2.000 kil\u00f3metros cuadrados de bosques. La explosi\u00f3n habr\u00eda hecho desaparecer una ciudad como Madrid of Buenos Aires.<\/p>\n

Muy contadas veces ocurre una colisi\u00f3n que extermina la vida de gran parte del planeta. Hace 65 millones de a\u00f1os, un asteroide de 10 km de ancho caus\u00f3 una explosi\u00f3n m\u00e1s grande que todas las bombas de hidr\u00f3geno que hay en la Tierra. Gener\u00f3 un cr\u00e1ter de 180 kil\u00f3metros de ancho en M\u00e9xico y disemin\u00f3 una capa de cenizas por todo el planeta. Los incendios que ocurrieron como consecuencia , seguidos de un periodo de tinieblas y much\u00edsimo fr\u00edo, causaron la extinci\u00f3n de los dinosaurios.<\/p>","protected":false},"excerpt":{"rendered":"

Earth is a moving target in a shooting gallery. Almost every day, a small chunk of space rock passes within a few million kilometres of the planet \u2013 often unseen. […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2000\/10\/artist_s_impression_of_a_catastrophic_asteroid_impact_with_the_earth2\/17866156-3-eng-GB\/Artist_s_impression_of_a_catastrophic_asteroid_impact_with_the_Earth.jpg","esa_banner_description":"Artist's impression of a catastrophic asteroid impact with the Earth","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2000\/10\/Artist_s_impression_of_a_catastrophic_asteroid_impact_with_the_Earth2","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[46,10,11],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1137","post","type-post","status-publish","format-standard","hentry","category-comets-and-meteors","category-learn","category-our-universe","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/posts\/1137","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/comments?post=1137"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/posts\/1137\/revisions"}],"predecessor-version":[{"id":2280,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/posts\/1137\/revisions\/2280"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/media?parent=1137"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/categories?post=1137"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/tags?post=1137"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/panel?post=1137"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/language?post=1137"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/age?post=1137"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/duration?post=1137"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/resource_type?post=1137"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/audience?post=1137"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/wf_post_folders?post=1137"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}