{"id":923,"date":"2004-11-16T10:04:00","date_gmt":"2004-11-16T09:04:00","guid":{"rendered":"https:\/\/kids.esa.int\/exploring_asteroids\/"},"modified":"2026-10-08T00:33:49","modified_gmt":"2026-10-07T22:33:49","slug":"exploring_asteroids","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/es\/exploring_asteroids\/","title":{"rendered":"La exploraci\u00f3n de asteroides"},"content":{"rendered":"<div class=\"lede\">\n<p>La mayor\u00eda de los asteroides son tan peque\u00f1os y est\u00e1n tan lejos que solo podemos verlos como min\u00fasculos puntos de luz. Se detectan gracias a su movimiento frente a las \u2018estrellas fijas\u2019 del cielo nocturno. Aprendemos m\u00e1s sobre ellos utilizando grandes telescopios para estudiar la luz que reflejan.<\/p>\n<\/div>\n<p>Algunos asteroides que pasan cerca de la Tierra se han estudiado con radares. Los ecos del radar son recogidos por grandes radiotelescopios y utilizados para determinar el tama\u00f1o y forma de los asteroides.<\/p>\n<p>Los sat\u00e9lites han estudiado detenidamente algunos asteroides. En las im\u00e1genes se ven objetos con muchos cr\u00e1teres, provocados por incontables colisiones a lo largo de miles de millones de a\u00f1os.<\/p>\n<p>En 2000, NEAR Shoemaker fue el primer sat\u00e9lite que entr\u00f3 en \u00f3rbita alrededor de un asteroide. El sat\u00e9lite concluy\u00f3 sus d\u00edas realizando un hist\u00f3rico descenso sobre Eros, uno de los mayores asteroides cercanos a la Tierra.<\/p>\n<p>La nave espacial Rosetta de la ESA tambi\u00e9n ha sobrevolado dos asteroides del cintur\u00f3n principal \u2014Steins y Lutetia\u2014 en su camino hacia un cometa. Con unos 130 km de di\u00e1metro, Lutetia fue el asteroide m\u00e1s grande visitado hasta la fecha por una nave espacial. La ESA tambi\u00e9n est\u00e1 estudiando formas de desviar de su trayectoria un asteroide que se dirija hacia la Tierra.<\/p>","protected":false},"excerpt":{"rendered":"<p>Most asteroids are so small and so far away that we can only see them as tiny points of light. They are found through their movement in front of the [&hellip;]<\/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\/2003\/04\/asteroids_come_in_many_shapes_and_sizes2\/17886580-2-eng-GB\/Asteroids_come_in_many_shapes_and_sizes.jpg","esa_banner_description":"Asteroids come in many shapes and sizes","esa_banner_credit":"courtesy Observatoire de Paris","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2003\/04\/Asteroids_come_in_many_shapes_and_sizes2","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-923","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\/923","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=923"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/posts\/923\/revisions"}],"predecessor-version":[{"id":2066,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/posts\/923\/revisions\/2066"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/media?parent=923"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/categories?post=923"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/tags?post=923"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/panel?post=923"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/language?post=923"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/age?post=923"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/duration?post=923"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/resource_type?post=923"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/audience?post=923"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/wf_post_folders?post=923"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}