{"id":410,"date":"2018-03-20T13:49:00","date_gmt":"2018-03-20T12:49:00","guid":{"rendered":"https:\/\/kids.esa.int\/astronauts_get_a_breath_of_fresh_air\/"},"modified":"2026-10-08T00:27:51","modified_gmt":"2026-10-07T22:27:51","slug":"astronauts_get_a_breath_of_fresh_air","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/da\/astronauts_get_a_breath_of_fresh_air\/","title":{"rendered":"Astronauterne f\u00e5r en mundfuld frisk luft"},"content":{"rendered":"<div class=\"lede\">\n<p>Astronauter, der bor ombord p\u00e5 Den Internationale Rumstation, har brug for de samme ting som os for at overleve: mad at spise, vand at drikke og ilt at ind\u00e5nde. Disse forsyninger leveres fra Jorden med fragtskibe. Men forestil dig, at du er astronaut p\u00e5 et fremtidigt rumskib, der er p\u00e5 vej til en fjern planet. Du vil v\u00e6re for langt v\u00e6k fra Jorden til at kunne modtage forsyninger. Hvordan f\u00e5r du fat i det, du har brug for for at overleve? For at hj\u00e6lpe med at l\u00f8se denne udfordring gennemf\u00f8rer forskere i \u00f8jeblikket et eksperiment, hvor de fremstiller ilt p\u00e5 Den Internationale Rumstation.<\/p>\n<\/div>\n<figure class=\"wp-block-image size-large\" data-width=\"6480\" data-credit=\"ESA-M. Cowan,\tCC BY-SA 3.0 IGO\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/03\/Cosmic_farming\" data-licence=\"CC BY-SA 3.0 IGO or ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2018\/03\/cosmic_farming\/17869265-2-eng-GB\/Cosmic_farming.jpg\" alt=\"Cosmic farming\"><figcaption>Kosmisk landbrug<\/figcaption><\/figure>\n<p>Vidste du, at n\u00e5r mennesker tr\u00e6kker vejret, indtager vi ilt og udskiller kuldioxid? Planter g\u00f8r det modsatte: Ved at omdanne lys til energi (en proces, der kaldes fotosyntese) optager de kuldioxid og afgiver ilt. Derfor kunne planter i rummet v\u00e6re en fantastisk m\u00e5de at genbruge luften til astronauterne p\u00e5. Forskernes eksperiment g\u00e5r ud p\u00e5 at finde ud af, om fotosyntesen fungerer p\u00e5 samme m\u00e5de i rummets v\u00e6gtl\u00f8se tilstand som p\u00e5 Jorden.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"5312\" data-credit=\"SCK-CEN\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/03\/Spirulina\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2018\/03\/spirulina\/17885027-2-eng-GB\/Spirulina.jpg\" alt=\"Spirulina\"><figcaption>Spirulina<\/figcaption><\/figure>\n<p>En s\u00e6rlig bakterieart ved navn Arthrospira, der udf\u00f8rer fotosyntese ligesom en plante, blev bragt til ESA\u2019s Columbus-laboratorium p\u00e5 Den Internationale Rumstation. Den blev derefter anbragt i et apparat kaldet en fotobioreaktor, som er en cylinder med masser af lys. Arthrospira optager den kuldioxid, som astronauterne ud\u00e5nder, og omdanner den til ilt. Som en ekstra bonus kan Arthrospira nemt omdannes til noget, der kaldes spirulina, som er meget n\u00e6ringsrigt og kan spises af astronauterne!<\/p>\n<p>Det store sp\u00f8rgsm\u00e5l er nu, om opholdet i rummet \u00e6ndrer planternes evne til at producere ilt. Hj\u00e6lper v\u00e6gtl\u00f8sheden dem med at blive mere effektive, eller medf\u00f8rer den m\u00e6rkelige bivirkninger? Er str\u00e5lingen fra rummet til gavn eller til skade for processen? Snart f\u00e5r vi svaret.<\/p>\n<p>M\u00e5ske bliver du i fremtiden astronaut og rejser til en anden verden, hvor du ind\u00e5nder luft, der er renset af planter!<\/p>\n<p><b>Sjovt faktum:<\/b> Forskerne h\u00e5ber at kunne udvikle maskiner, der kan omdanne astronauternes urin til vand, som de derefter kan drikke!<\/p>","protected":false},"excerpt":{"rendered":"<p>Astronauts living on-board the International Space Station need the same things that we do to survive: food to eat, water to drink, and oxygen to breathe. These supplies are delivered [&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\/2018\/03\/arthrospira_microalgae\/17879736-2-eng-GB\/Arthrospira_microalgae.jpg","esa_banner_description":"Arthrospira microalgae","esa_banner_credit":"SCK-CEN","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/03\/Arthrospira_microalgae","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":[26],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-410","post","type-post","status-publish","format-standard","hentry","category-news"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/410","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/comments?post=410"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/410\/revisions"}],"predecessor-version":[{"id":4452,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/410\/revisions\/4452"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/media?parent=410"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/categories?post=410"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/tags?post=410"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/panel?post=410"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/language?post=410"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/age?post=410"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/duration?post=410"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/resource_type?post=410"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/audience?post=410"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/wf_post_folders?post=410"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}