{"id":548,"date":"2015-01-16T12:55:00","date_gmt":"2015-01-16T11:55:00","guid":{"rendered":"https:\/\/kids.esa.int\/astronauts_catch_a_dragon\/"},"modified":"2026-10-08T00:29:30","modified_gmt":"2026-10-07T22:29:30","slug":"astronauts_catch_a_dragon","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fi\/astronauts_catch_a_dragon\/","title":{"rendered":"Astronautit nappaavat lohik\u00e4\u00e4rmeen"},"content":{"rendered":"<div class=\"lede\">\n<p>Aiemmin t\u00e4ll\u00e4 viikolla astronautit Samantha Cristoforetti ja Butch Wilmore ottivat vastaan Dragon-avaruusaluksen, kun se saapui kansainv\u00e4liselle avaruusasemalle tuoden mukanaan tuoreita tarvikkeita ja uusia kokeita kuudelle astronautille.<\/p>\n<\/div>\n<p>Kaksikko k\u00e4ytti avaruusaseman ulkopuolelle kiinnitetty\u00e4 j\u00e4ttim\u00e4ist\u00e4 robottik\u00e4tt\u00e4 tarttumaan avaruusalukseen ja pit\u00e4m\u00e4\u00e4n sit\u00e4 paikallaan purkamisen aikana.<\/p>\n<p>Dragonin tuomat materiaalit olivat p\u00e4\u00e4osin raaka-aineita, joita astronautit k\u00e4ytt\u00e4v\u00e4t uusissa kokeissaan, mukaan lukien hedelm\u00e4k\u00e4rp\u00e4sist\u00e4, laakamadoista, \u00e4yri\u00e4isist\u00e4 ja jopa ihmisist\u00e4 otetut pienet solut.<\/p>\n<p>Yksi ensimm\u00e4isist\u00e4 lastista oli koe, joka vaatii astronautteilta nopeaa toimintaa. Kun ihmiset ovat avaruudessa, heid\u00e4n immuunij\u00e4rjestelm\u00e4ns\u00e4 (eli se kehon osa, joka suojaa meit\u00e4 sairauksilta) ei toimi yht\u00e4 hyvin kuin maapallolla. Jotta voisimme ymm\u00e4rt\u00e4\u00e4, miksi n\u00e4in on, tutkijat ovat l\u00e4hett\u00e4neet ihmisen immuunisoluja Dragon-aluksen mukana.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1024\" data-credit=\"ESA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2015\/01\/Dragon_approaching_ISS\" 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\/2015\/01\/dragon_approaching_iss\/17890429-2-eng-GB\/Dragon_approaching_ISS.jpg\" alt=\"Dragon approaching ISS\"><figcaption>Lohik\u00e4\u00e4rme l\u00e4hestyy ISS:\u00e4\u00e4<\/figcaption><\/figure>\n<p>N\u00e4m\u00e4 solut on eristetty tuoreesta ihmisverest\u00e4, ja ne selvi\u00e4v\u00e4t verest\u00e4 poissa vain 120 tuntia! T\u00e4m\u00e4 tarkoittaa, ett\u00e4 astronauttien on toimittava eritt\u00e4in nopeasti saadakseen kokeensa valmiiksi ajoissa. Kahden p\u00e4iv\u00e4n lennon j\u00e4lkeen Dragon-aluksella solut oli sijoitettava inkubaattoriin mahdollisimman pian. Seuraava vaihe on laukaista solujen luonnolliset taudintorjuntareaktiot. Sen j\u00e4lkeen solut pakastetaan, jotta ne voidaan l\u00e4hett\u00e4\u00e4 takaisin Maahan jatkotutkimuksia varten.<\/p>\n<p>Astronautit luovat my\u00f6s keinotekoisen infektion aktivoidakseen immuunisoluja, jotka on otettu muilta eli\u00f6ilt\u00e4, kuten rotilta ja simpukoilta. Sen j\u00e4lkeen he tutkivat, miten solut k\u00e4ytt\u00e4ytyv\u00e4t painottomuudessa, maan normaalissa painovoimassa ja avaruudessa luodussa painovoimassa.<\/p>\n<p>T\u00e4ll\u00e4 tavoin he pyrkiv\u00e4t selvitt\u00e4m\u00e4\u00e4n, johtuuko immuunij\u00e4rjestelm\u00e4n hidastuminen avaruudessa alhaisesta painovoimasta vai vaarallisten kosmisten s\u00e4teiden vaikutuksesta \u2013 vai jopa n\u00e4iden kahden tekij\u00e4n yhdistelm\u00e4st\u00e4!<\/p>\n<p><b>Mielenkiintoinen fakta:<\/b> Dragon-kapseli todella \u201csy\u00f6ksee tulta\u201d niiden 18 ohjausrakettimoottorin kautta, joita k\u00e4ytet\u00e4\u00e4n sen ohjaamiseen!<\/p>","protected":false},"excerpt":{"rendered":"<p>Earlier this week, astronauts Samantha Cristoforetti and Butch Wilmore captured the Dragon spacecraft as it arrived at the International Space Station carrying fresh supplies and new experiments for the six [&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\/2015\/01\/butch_and_samantha\/18246365-2-eng-GB\/Butch_and_Samantha.jpg","esa_banner_description":"Butch and Samantha","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2015\/01\/Butch_and_Samantha","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-548","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\/fi\/wp-json\/wp\/v2\/posts\/548","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/comments?post=548"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/548\/revisions"}],"predecessor-version":[{"id":4542,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/548\/revisions\/4542"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/media?parent=548"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/categories?post=548"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/tags?post=548"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/panel?post=548"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/language?post=548"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/age?post=548"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/duration?post=548"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/resource_type?post=548"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/audience?post=548"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/wf_post_folders?post=548"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}