{"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\/sv\/death_of_the_dinosaurs\/","title":{"rendered":"Dinosauriernas utrotning"},"content":{"rendered":"<div class=\"lede\">\n<p>Jorden \u00e4r ett r\u00f6rligt m\u00e5l i en skjutbana. N\u00e4stan varje dag passerar en liten bit rymdsten inom n\u00e5gra miljoner kilometer fr\u00e5n planeten \u2013 ofta osynlig. Ibland kommer de n\u00e4rmare \u00e4n m\u00e5nen.<\/p>\n<\/div>\n<p>Forskare tror att det kan finnas s\u00e5 m\u00e5nga som 100 000 jordn\u00e4ra asteroider som \u00e4r mer \u00e4n 100 meter i diameter \u2013 ungef\u00e4r lika stora som en fotbollsplan. \u00d6ver 600 jordn\u00e4ra asteroider som \u00e4r st\u00f6rre \u00e4n 1 km har uppt\u00e4ckts. Hundratals fler \u00e5terst\u00e5r att uppt\u00e4cka.<\/p>\n<p>Var n\u00e5gra tusen \u00e5r kraschar faktiskt en asteroid in i v\u00e5r v\u00e4rld. Den senaste h\u00e4ndelsen intr\u00e4ffade i Sibirien \u00e5r 1908, d\u00e5 en liten asteroid j\u00e4mnade mer \u00e4n 2 000 kvadratkilometer skog med marken. Explosionen skulle ha utpl\u00e5nat en stad av samma storlek som Paris eller London.<\/p>\n<p>Mycket s\u00e4llan intr\u00e4ffar en kollision som utpl\u00e5nar livet \u00f6ver stora delar av planeten. F\u00f6r 65 miljoner \u00e5r sedan orsakade en 10 kilometer bred asteroid en explosion som var st\u00f6rre \u00e4n alla v\u00e4tebomber p\u00e5 jorden. Den gr\u00e4vde en 180 kilometer bred krater i Mexiko och spred ett lager av aska \u00f6ver hela v\u00e4rlden. Omfattande br\u00e4nder, f\u00f6ljda av m\u00f6rker och extrem kyla, ledde till att dinosaurierna dog ut.<\/p>","protected":false},"excerpt":{"rendered":"<p>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. 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