{"id":689,"date":"2013-03-18T13:08:00","date_gmt":"2013-03-18T12:08:00","guid":{"rendered":"https:\/\/kids.esa.int\/two_spacewalks_for_luca\/"},"modified":"2026-10-08T00:31:10","modified_gmt":"2026-10-07T22:31:10","slug":"two_spacewalks_for_luca","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fi\/two_spacewalks_for_luca\/","title":{"rendered":"Kaksi avaruusk\u00e4vely\u00e4 Lucalle!"},"content":{"rendered":"
\n

ESA:n astronautti Luca Parmitano aikoo suorittaa kaksi avaruusk\u00e4vely\u00e4 Volare-teht\u00e4v\u00e4ns\u00e4 aikana, joka alkaa toukokuussa Kansainv\u00e4lisell\u00e4 avaruusasemalla.<\/p>\n<\/div>\n

Monille astronautille uran kohokohta on avaruusk\u00e4vely eli \u2018Extravehicular Activity\u2019 (EVA). Se tarkoittaa kansainv\u00e4lisen avaruusaseman ulkopuolelle menemist\u00e4 ja \u2018avaruudessa k\u00e4velemist\u00e4\u2019 korjaust\u00f6iden suorittamiseksi tai uusien laitteiden asentamiseksi.<\/p>\n

Luca toimii lentomekaanikkona Expedition 36\/37 -retkikunnassa, ja h\u00e4nen teht\u00e4viins\u00e4 kuuluu huoltot\u00f6iden suorittaminen, kameran vaihtaminen Japanin Kibo-moduulissa sek\u00e4 ISS:lle l\u00e4hetettyjen tieteellisten laitteiden tuominen alukselle. Yhden avaruusk\u00e4velyns\u00e4 aikana h\u00e4n valmistelee my\u00f6s ven\u00e4l\u00e4isen moduulin saapumista.<\/p>\n

\"\"<\/figure>\n

On eritt\u00e4in vaikeaa lent\u00e4\u00e4 avaruudessa, kun vain muutaman senttimetrin paksuiset vaatteet suojaavat tyhji\u00f6lt\u00e4 sek\u00e4 \u00e4\u00e4rimm\u00e4isilt\u00e4 kuumuuksilta ja kylmyyksilt\u00e4. Avaruusk\u00e4velyj\u00e4 tehd\u00e4\u00e4n vain silloin, kun se on ehdottoman v\u00e4ltt\u00e4m\u00e4t\u00f6nt\u00e4, sill\u00e4 niiden valmistelu vie paljon aikaa ja niihin liittyy monia riskej\u00e4.<\/p>\n

Vaikka avaruusk\u00e4velyn suorittaminen on astronautille fyysisesti ja henkisesti eritt\u00e4in vaativaa, avaruusaluksen ulkopuolella ty\u00f6skentely tarjoaa yhden upeimmista n\u00e4kymist\u00e4, joita voi kuvitella. Kuvittele, millaista olisi ihailla kaunista n\u00e4kym\u00e4\u00e4 Maahan niin korkealta!<\/p>\n

T\u00e4ss\u00e4 kuvassa Luca valmistautuu avaruusk\u00e4velyn harjoitukseen ja h\u00e4nell\u00e4 on yll\u00e4\u00e4n avaruuspuvun harjoitusversio. H\u00e4n harjoittelee erityisess\u00e4 uima-altaassa l\u00e4hell\u00e4 NASA:n keskusta Houstonissa, Texasissa, sill\u00e4 veden alla k\u00e4vely tuntuu hyvin samankaltaiselta kuin avaruudessa k\u00e4vely. Lucan avaruusk\u00e4velyjen p\u00e4iv\u00e4m\u00e4\u00e4ri\u00e4 ei ole viel\u00e4 vahvistettu, mutta ne j\u00e4rjestet\u00e4\u00e4n todenn\u00e4k\u00f6isesti hein\u00e4kuun alussa.<\/p>","protected":false},"excerpt":{"rendered":"

ESA astronaut Luca Parmitano is going to do two spacewalks during his Volare mission, which starts in May on the International Space Station. For many astronauts, the highlight of their […]<\/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\/2013\/03\/esa_astronaut_luca_parmitano_suiting_up_for_eva_training2\/17895609-2-eng-GB\/ESA_astronaut_Luca_Parmitano_suiting_up_for_EVA_training.jpg","esa_banner_description":"","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2013\/03\/ESA_astronaut_Luca_Parmitano_suiting_up_for_EVA_training2","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-689","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\/689","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=689"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/689\/revisions"}],"predecessor-version":[{"id":4628,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/689\/revisions\/4628"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/media?parent=689"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/categories?post=689"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/tags?post=689"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/panel?post=689"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/language?post=689"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/age?post=689"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/duration?post=689"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/resource_type?post=689"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/audience?post=689"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/wf_post_folders?post=689"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}