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Chastina informaciyi v cij statti zastarila Vi mozhete dopomogti onovivshi yiyi Mozhlivo storinka obgovorennya mistit zauvazhennya shodo potribnih zmin berezen 2019 Astrobiologiya ekzobiologiya nauka predmetom yakoyi ye vivchennya pohodzhennya evolyuciyi ta rozpovsyudzhennya zhittya na inshih planetah u Vsesviti Astrobiologiya spirayetsya na naukovi dosyagnennya v galuzi fiziki himiyi astronomiyi biologiyi ekologiyi planetologiyi geografiyi geologiyi i kosmonavtiki dlya doslidzhennya mozhlivosti isnuvannya pozazemnogo zhittya 2 3 U virishenni deyakih zavdan astrobiologiya tisno dotikayetsya do bioastronavtiki en i kosmichnoyi medicini sho vinikli u zv yazku z aktivnim proniknennyam lyudini v kosmichnij prostir Astrobiologiya zdijsnyuye poshuk pridatnogo dlya zhittya seredovisha prozhivannya yak v Sonyachnij sistemi tak i za yiyi mezhami poshuk dokaziv prebiotichnoyi himiyi laboratorni i praktichni doslidzhennya pohodzhennya i rannogo rozvitku zhittya na Zemli a takozh doslidzhennya potencijnih mozhlivostej zhittya v chastini pristosuvannya do skladnih umov na Zemli i v kosmosi 4 Nukleyinovi kisloti mozhut buti ne yedinimi biomolekulami u Vsesviti zdatnimi nesti zhittyevu informaciyu 1 Zmist 1 Oglyad 2 Metodologiya 2 1 Zvuzhennya zadachi 2 2 Skladovi chastini astrobiologiyi 2 2 1 Astronomiya 2 2 2 Biologiya 2 2 3 Astrobotanika 2 2 4 Astrogeologiya 3 Zhittya v Sonyachnij sistemi 4 Gipoteza vinyatkovoyi Zemli 5 Doslidzhennya 5 1 Rezultati doslidzhen 5 1 1 Metan 5 1 2 Planetni sistemi 5 1 3 Zhittyepridatnist planeti 6 Misiyi 6 1 Programa Viking 6 2 Beagle 2 6 3 EXPOSE 6 4 Naukova laboratoriya Marsa 6 5 Ekzomars marsohid 6 6 Red Dragon 6 7 Mars 2020 7 Proponovani misiyi 7 1 Icebreaker Life 7 2 Podorozh do Encelada i Titana 7 3 Enceladus Life Finder 7 4 Europa Clipper 8 Naukovo populyarni filmi 9 Primitki 10 Div takozh 11 Literatura 12 PosilannyaOglyad Redaguvati nbsp Nevidomo chi bude zhittya u Vsesviti v razi jogo viyavlennya mati klitini podibni do zemnih roslin vidno hloroplasti v klitinah roslini 5 nbsp Marsianskij meteorit ALH84001 maye mikroskopichni utvorennya yaki mozhut buti stvoreni mikroorganizmami Termin astrobiologiya vpershe zaproponovano radyanskim astronomom G A Tihovim u 1953 roci Vin utvorenij vid davnogreckih sliv astron dav gr ἄstron zirka bios dav gr bios zhittya i logiya dav gr logia vchennya Ye rizni sinonimi termina astrobiologiya odnak vsi voni vklyuchayut dvi osnovni nauki astronomiyu i biologiyu Termin sinonim ekzobiologiya pohodit vid greckogo ekzo dav gr E3w poza zovni bios dav gr bios zhittya i logiya dav gr logia vchennya Inshij termin yakij vikoristovuvavsya v minulomu ksenobiologiya tobto biologiya inozemciv Ce slovo pridumav u 1954 roci pismennik fantast Robert Gajnlajn u jogo romani Zoryanij zvir 6 Pitannya chi isnuye zhittya des she u Vsesviti ye gipotezoyu sho piddayetsya perevirci a otzhe efektivnim napryamkom naukovih doslidzhen V danij chas astrobiologiya stala formalizovanoyu galuzzyu doslidzhen hocha kolis znahodilasya ostoron vid osnovnih naukovih poshukiv Interes NASA do astrobiologiyi pochavsya z rozrobki Kosmichnoyi programi U 1959 roci NASA profinansuvalo svij pershij proekt z ekzobiologiyi a v 1960 roci stvorilo Programu vivchennya ekzobiologiyi 4 7 U 1971 roci NASA profinansuvalo proekt SETI z poshuku radiosignaliv pozazemnih civilizacij Programa Viking zapochatkovana u 1976 roci vklyuchala tri biologichni eksperimenti rozrobleni dlya poshuku mozhlivih oznak isnuvannya zhittya na Marsi Naukovij aparat Mars Pathfinder sho prizemlivsya v 1997 roci mistiv naukovij vantazh priznachenij dlya viyavlennya mikrobnih skam yanilostej v kamenyah 8 U XXI stolitti astrobiologiya staye centrom zrostayuchogo chisla doslidnickih misij NASA i Yevropejskogo kosmichnogo agentstva v Sonyachnij sistemi U travni 2001 roku v Italiyi 9 vidbuvsya pershij yevropejskij seminar z astrobiologiyi rezultatom yakogo stala Programa Avrora 10 V danij chas NASA kuruye Institut astrobiologiyi NASA en Vse bilshe chislo universitetiv u vsomu sviti vvodyat programi navchannya z astrobiologiyi U Spoluchenih Shtatah ce Arizonskij universitet 11 universitet Pensilvaniyi universitet shtatu Montana i Vashingtonskij universitet u Velikij Britaniyi universitet Kardiffa stvoreno Centr astrobiologiyi 12 v Avstraliyi Universitet Novogo Pivdennogo Uelsu 13 U Rosiyi Postanovoyu Prezidiyi Rosijskoyi akademiyi nauk vid 23 11 2010 organizovano Naukovu radu RAN z astrobiologiyi 14 Dosyagnennya v galuzi astrobiologiyi sposterezhnoyi astronomiyi i vidkrittya velikogo rozmayittya ekstremofiliv sho zdatni isnuvati v najsuvorishih umovah na Zemli priveli do pripushennya sho zhittya mozhe procvitati na bagatoh planetah i suputnikah u Vsesviti Osobliva uvaga potochnih astrobiologichnih doslidzhen pridilyayetsya poshuku zhittya na Marsi cherez jogo blizkist do Zemli i geologichnu istoriyu Isnuye vse bilshe svidchen sho ranishe na poverhni Marsa bula znachna kilkist vodi yaka rozglyadayetsya v yakosti najvazhlivishogo poperednika rozvitku zhittya na osnovi vuglecyu 15 Misiyami rozroblenimi specialno dlya poshuku zhittya buli Programa Viking i posadkovij modul Bigl 2 spryamovani do Marsa Osnovnij visnovok yakij mozhna zrobiti za rezultatami roboti Vikingiv abo kilkist mikroorganizmiv u miscyah posadok aparativ mizerno mala abo yih nemaye vzagali Posadkovij modul Bigl 2 imovirno prizemlivsya vdalo ale na zv yazok ne vijshov Osnovnoyu prichinoyu vihodu z ladu viznana vidmova obladnannya zv yazku Znachnu rol u astrobiologiyi povinna bula zigrati misiya Jupiter Icy Moons Orbiter priznachena dlya doslidzhennya krizhanih suputnikiv Yupitera odnak vona bula skasovana U 2008 roci posadkovij modul Feniks doslidzhuvav marsianskij grunt na nayavnist slidiv mikrobnogo zhittya a takozh prisutnist vodi Golovnim naukovim rezultatom misiyi stalo viyavlennya lodu pid tonkim sharom gruntu a takozh jogo himichnij analiz U listopadi 2011 roku NASA zapustilo marsohid Curiosity yakij prodovzhiv poshuki slidiv zhittya na Marsi Yevropejske kosmichne agentstvo rozroblyaye marsohid ExoMars yakij planuyetsya do zapusku v 2020 roci 16 Mizhnarodnij astronomichnij soyuz MAS regulyarno provodit veliki mizhnarodni konferenciyi dopomogoyu Komisiyi 51 Bioastronomiya poshuk pozazemnogo zhittya yaka bula stvorena MAS u 1982 roci dlya koordinaciyi robit v galuzi poshuku zhittya i rozumu u Vsesviti i v danij chas funkciyuye na bazi Institutu astronomiyi pri Universiteti Gavayiv 17 Metodologiya RedaguvatiZvuzhennya zadachi Redaguvati Dlya poshuku zhittya na inshih planetah neobhidno zmenshiti rozmir zadachi dlya chogo vikoristovuyutsya rizni pripushennya Pershe polyagaye v tomu sho perevazhna bilshist form zhittya v nashij Galaktici zasnovana na vuglecevij himiyi yak i vsi formi zhittya na Zemli 18 Hocha ne zaperechuyetsya mozhlivist isnuvannya nevuglecevih form zhittya Pripushennya zasnovane na tomu sho vuglec ye chetvertim za poshirenistyu elementom u Vsesviti a takozh dozvolyaye formuvati veliku riznomanitnist molekul navkolo sebe Zdatnist atomiv vuglecyu legko zv yazuvatisya odin z odnim dozvolyaye stvoryuvati yak zavgodno dovgi i skladni molekuli Nastupne pripushennya nayavnist vodi v ridkomu stani Voda ye poshirenoyu rechovinoyu yaka neobhidna dlya formuvannya skladnih vuglecevih spoluk yaki zreshtoyu mozhut prizvesti do poyavi zhittya Deyaki doslidniki proponuyut takozh rozglyadati seredovishe amiaku abo vodno amiachnih sumishej oskilki vono zabezpechuye bilshij diapazon temperatur dlya zhittya i takim chinom rozshiryuye kilkist potencijnih svitiv Ce seredovishe vvazhayut pridatnim yak dlya vuglecevogo tak i dlya nevuglecevogo zhittya Tretye pripushennya poshuk zirok podibnih do Soncya Duzhe veliki zirki mayut vidnosno malij chas zhittya sho v svoyu chergu oznachaye sho u zhittya ne bude dostatno chasu dlya rozvitku na planetah sho obertayutsya navkolo takih zirok Duzhe malenki zirki vidilyayut tak malo tepla sho planeti zmozhut mati vodu v ridkomu stani perebuvayuchi tilki na duzhe blizkih orbitah Ale pri comu planeti budut zahopleni priplivnimi silami zirki 19 Bez tovstogo sharu atmosferi odna storona planeti bude postijno nagrita a insha zamorozhena Odnak u 2005 roci pitannya pridatnosti dlya zhittya planet navkolo chervonih karlikiv bulo znovu postavleno na poryadok dennij naukovoyi spilnoti oskilki trivalij chas isnuvannya chervonih karlikiv do 10 triljoniv rokiv mozhe dopuskati nayavnist zhittya na planetah zi shilnoyu atmosferoyu Ce maye velike znachennya oskilki chervoni karliki ye duzhe poshirenimi u Vsesviti div Zhittyepridatnist sistemi chervonogo karlika Za ocinkami vchenih blizko 10 zirok u nashij Galaktici za svoyimi harakteristikami podibni do Soncya a v radiusi 100 svitlovih rokiv vid nas znahoditsya blizko tisyachi takih zirok Ci zirki najimovirnishe budut osnovnoyu cillyu pri poshuku zhittya v yih sistemah Oskilki Zemlya ye yedinoyu planetoyu na yakij dostovirno vidomo pro nayavnist zhittya to nemozhlivo diznatisya korektni prijnyati pripushennya chi ni Skladovi chastini astrobiologiyi Redaguvati Astronomiya Redaguvati nbsp Ekzoplaneta OGLE 2005 BLG 390Lb na vidstani 20 000 svitlovih rokiv u podanni hudozhnika nbsp Misiya Kepler priznachena dlya poshuku ekzoplanetBilshist pov yazanih z astronomiyeyu astrobiologichnih doslidzhen vidnositsya do viyavlennya planet za mezhami Sonyachnoyi sistemi ekzoplanet Osnovna peredumova polyagaye v tomu sho yaksho zhittya viniklo na Zemli to vono moglo viniknuti j na inshih planetah z analogichnimi harakteristikami U zv yazku z cim u stadiyi opracyuvannya perebuvaye velika kilkist proektiv priznachenih dlya viyavlennya ekzoplanet podibnih do Zemli V pershu chergu ce programi NASA Terrestrial Planet Finder ru TPF i ATLAST a takozh programa Darwin Yevropejskogo kosmichnogo agentstva Isnuyut takozh mensh ambitni proekti v yakih peredbachayetsya vikoristannya nazemnih teleskopiv Krim togo NASA vzhe zapustilo misiyu Kepler u berezni 2009 roku a Francuzke kosmichne agentstvo suputnik COROT u 2006 roci Metoyu planovanih misij ye ne tilki viyavlennya planet rozmirom z Zemlyu ale j bezposerednye sposterezhennya svitla vid planeti dlya podalshogo spektroskopichnogo vivchennya Doslidzhuyuchi spektri planet mozhna viznachiti osnovnij sklad atmosferi ekzoplaneti i abo yiyi poverhni Otrimavshi taku informaciyu mozhna ociniti jmovirnist nayavnosti zhittya na planeti Doslidnicka grupa NASA Laboratoriya virtualnih planet vikoristovuye komp yuterne modelyuvannya dlya stvorennya riznomanitnih virtualnih planet shob zrozumiti yak voni budut viglyadati pri sposterezhenni Darvinom abo TPF 20 Koli ci misiyi pochnut zbir danih otrimani spektri planet mozhut buti zvireni zi spektrami virtualnih planet v chastini harakteristik yaki mozhut vkazuvati na nayavnist zhittya Zmina fotometriyi ekzoplaneti takozh mozhe dati dodatkovu informaciyu pro vlastivosti poverhni i atmosferi planeti Ociniti kilkist planet z rozumnim zhittyam mozhna za dopomogoyu rivnyannya Drejka Rivnyannya viznachaye jmovirnist nayavnosti rozumnogo zhittya yak dobutok takih parametriv yak kilkist planet yaki mozhut buti naselenimi i kilkist planet na yakih mozhe viniknuti zhittya 21 N R f p n e f l f i f c L displaystyle N R times f p times n e times f l times f i times f c times L nbsp de N kilkist rozumnih civilizacij gotovih vstupiti v kontakt R chislo zir yaki utvoryuyutsya shorichno zir podibnih do Soncya fp chastka zirok sho mayut planeti ne serednya kilkist planet i suputnikiv z umovami pridatnimi dlya zarodzhennya civilizaciyi fl jmovirnist zarodzhennya zhittya na planeti z pridatnimi umovami fi jmovirnist viniknennya rozumnih form zhittya na planeti na yakij ye zhittya fc vidnoshennya kilkosti planet rozumni meshkanci yakih zdatni do kontaktu i shukayut jogo do kilkosti planet na yakih ye rozumne zhittya L chas zhittya civilizaciyi tobto chas protyagom yakogo civilizaciya isnuye zdatna vstupiti v kontakt i hoche vstupiti v kontakt Odnak na danij moment ce rivnyannya lishe teoretichno obgruntovano i malojmovirno sho rivnyannya otrimaye rozumni mezhi pohibki najblizhchim chasom Pershij mnozhnik R viznachayetsya z astronomichnih vimiriv i ye najmensh obgovoryuvanoyu velichinoyu Shodo drugogo i tretogo mnozhnikiv zirki z planetami i planeti z pridatnimi umovami v danij chas jde aktivnij zbir danih Inshi parametri zasnovani viklyuchno na pripushennyah Problema formuli u tomu sho vona ne zmozhe vikoristovuvatisya dlya stvorennya gipotezi oskilki mistit parametri yaki ne mozhut buti perevireni Insha pov yazana tema paradoks Fermi yakij peredbachaye sho yaksho rozumne zhittya poshirene u Vsesviti to povinni isnuvati yavni oznaki cogo Na comu paradoksi zasnovani taki proekti yak SETI yaki namagayutsya viyaviti radiosignali vid rozumnih pozazemnih civilizacij Inshoyu aktivnoyu oblastyu doslidzhen v astrobiologiyi ye vivchennya formuvannya planetnoyi sistemi Bulo vislovleno pripushennya sho osoblivosti nashoyi Sonyachnoyi sistemi napriklad prisutnist Yupitera v yakosti zahisnogo shita 22 mogli znachno zbilshiti jmovirnist rozvitku rozumnogo zhittya yake viniklo na nashij planeti 23 24 Ale ostatochnih visnovkiv dosi ne zrobleno Biologiya Redaguvati nbsp Chorni kurci pidtrimuyut zhittya deyakih mikroorganizmiv na Zemli Taki formuvannya mozhut buti j na inshih planetah Do 1970 h rokiv vcheni vvazhali sho zhittya povnistyu zalezhit vid energiyi Soncya Roslini na Zemli vikoristovuyut energiyu sonyachnogo svitla v procesi fotosintezu vnaslidok yakogo utvoryuyutsya organichni rechovini z vuglekislogo gazu i vodi i vivilnyayetsya kisen Dali tvarini poyidayut roslini tim samim zdijsnyuyetsya peredacha energiyi po harchovomu lancyugu Ranishe vvazhalosya sho zhittya v glibinah okeanu kudi ne potraplyaye sonyachne svitlo isnuye zavdyaki pozhivnim rechovinam yaki utvoryuyutsya vid spozhivannya organichnih reshtok sho padayut z poverhni okeanu abo vid mertvih tvarin tobto takozh zalezhit vid Soncya Peredbachalosya sho zdatnist zhittya do isnuvannya zalezhit vid jogo dostupu do sonyachnogo svitla Odnak u 1977 roci pid chas doslidnogo zanurennya na glibokovodnomu aparati Alvin poblizu Galapagoskih ostroviv vcheni viyavili koloniyi pogonofor molyuskiv rakopodibnih midij i inshih morskih meshkanciv zgrupovanih navkolo pidvodnih vulkanichnih utvoren nazvanih chornimi kurcyami Ci istoti procvitali nezvazhayuchi na vidsutnist dostupu do sonyachnogo svitla Piznishe bulo z yasovano sho voni stanovlyat cilkom nezalezhnij harchovij lancyuzhok Zamist roslin osnovu cogo harchovoyi lancyuga stanovit pevna forma bakterij yaka otrimuye energiyu z procesu okislennya reaktivnih himichnih rechovin takih yak voden abo sirkovoden sho nadhodyat iz vnutrishnih chastin Zemli Cej hemosintez zrobiv revolyuciyu u vivchenni biologiyi dovodyachi sho zhittya ne obov yazkovo zalezhit vid Soncya vono lishe vimagaye nayavnosti vodi ta energiyi Ekstremofili organizmi zdatni vizhiti v ekstremalnih umovah ye klyuchovim elementom u doslidzhennyah astrobiologiv Yak prikladi takih organizmiv mozhna navesti biotu zdatnu vizhiti pid tovsheyu vodi v kilka kilometriv poblizu gidrotermalnih dzherel i mikrobiv yaki zhivut u duzhe kislih seredovishah 25 U danij chas vidomo sho ekstremofili zhivut u lodu kiplyachij vodi kisloti vodi z yadernih reaktoriv solyah kristaliv toksichnih vidhodah i v ryadi inshih ekstremalnih misc yaki ranishe vvazhalisya nepridatnimi dlya zhittya 26 Voni vidkrili novi napryami doslidzhen v astrobiologiyi zavdyaki znachnomu zbilshennyu chisla mozhlivih misc prozhivannya za mezhami Zemli Harakteristika cih organizmiv yih seredovisha prozhivannya i evolyucijnogo shlyahu vvazhayetsya najvazhlivishim komponentom v rozuminni togo yak mozhe rozvivatisya zhittya v inshih miscyah u Vsesviti Os prikladi organizmiv zdatnih vitrimati vpliv vakuumu i kosmichnoyi radiaciyi lishajniki Rizokarpon geografichnij ru lat Rhizocarpon geographicum i Ksantoriya elegantna ru lat Xanthoria elegans 27 bakteriyi Bacillus safensis en 28 Deinococcus radiodurans 28 Bacillus subtilis 28 drizhdzhi Saccharomyces cerevisiae 28 nasinnya Rizushki Talya lat Arabidopsis thaliana 28 a takozh bezhrebetni Tihohodi 28 2 grudnya 2010 roku vchenimi bulo ogolosheno sho bakteriyi ekstremofili GFAJ 1 v umovah nestachi fosforu mozhut zamishati jogo v molekuli DNK na mish yak 29 Ce vidkrittya dodaye znachimosti starij ideyi zgidno z yakoyu zhittya na inshih planetah mozhe mati zovsim inshij himichnij sklad i tomu vono mozhe dopomogti v poshukah pozazemnogo zhittya 29 30 Piznishe z yasuvalosya sho ce ne tak 31 Inshoyu galuzzyu doslidzhen ye vivchennya pohodzhennya zhittya vidminnogo vid evolyucijnogo shlyahu Oleksandr Oparin i Dzhon Holdejn vvazhali sho umovi na rannij Zemli buli spriyatlivimi dlya formuvannya organichnih spoluk z neorganichnih elementiv i takim chinom dlya utvorennya bagatoh himichnih rechovin harakternih dlya form zhittya yaki mi zaraz sposterigayemo U vivchenni cogo procesu vidomogo yak prebiotichna himiya vcheni dosyagli pevnogo progresu ale dosi neyasno chi moglo zhittya utvoritisya takim chinom na Zemli Alternativna teoriya panspermiyi polyagaye v tomu sho pershi elementi zhittya mozhlivo sformuvalisya na inshij planeti z she bilsh spriyatlivimi umovami abo navit u mizhzoryanomu prostori na asteroyidah tosho a potim buli yakimos chinom pereneseni na Zemlyu Suputnik Yupitera Yevropa v danij chas rozglyadayetsya v yakosti najbilsh jmovirnogo miscya dlya isnuvannya pozazemnogo zhittya v Sonyachnij sistemi 26 32 33 34 35 Astrobotanika Redaguvati Astrobota nika rozdil astrobiologiyi sho vivchaye pitannya pro mozhlivist isnuvannya i nayavnist roslinnih organizmiv na planetah Sonyachnoyi sistemi Metodika astrobotaniki polyagaye v doslidzhenni optichnih vlastivostej zemnih roslin sho rostut u riznih fizichnih umovah i porivnyanni yih z optichnimi vlastivostyami poverhon planet Pershij vklad u stvorennya astrobotaniki yak nauki zrobiv radyanskij astronom Tihov G A Protyagom 40 rokiv Tihov zajmavsya vivchennyam fizichnoyi prirodi Marsa Na pidstavi sposterezhen planeti v riznih spektralnih dilyankah shukav dokazi isnuvannya roslinnosti na Marsi dlya cogo vikonav veliki seriyi doslidiv z viznachennya spektralnoyi vidbivnoyi zdatnosti zemnih roslin yaki rostut v najriznomanitnishih klimatichnih umovah gruntiv ta inshih prirodnih utvoren Ci doslidzhennya v galuzi astrobotaniki velisya v Sektori astrobotaniki AN Kazahskoyi RSR Doslidzhennya Sektora astrobotaniki pokazuyut sho optichni vlastivosti temnih dilyanok Marsa shozhi z optichnimi vlastivostyami roslinnosti deyakih misc Zemli Pitannya pro roslinnist na Veneri she malo z yasovane Astrogeologiya Redaguvati Osnovna stattya Geologiya planet zemnoyi grupi v Sonyachnij sistemi en Astrogeologiya naukova disciplina predmetom yakoyi ye vivchennya geologiyi planet i yihnih suputnikiv asteroyidiv komet meteoritiv ta inshih astronomichnih til Informaciya zibrana ciyeyu disciplinoyu dozvolyaye ociniti pridatnist planeti abo yiyi suputnika dlya rozvitku i pidtrimki zhittya Geohimiya dodatkova disciplina astrogeologiyi sho vklyuchaye vivchennya himichnogo skladu Zemli i inshih planet himichnih procesiv i reakcij yaki regulyuyut sklad porid i gruntu cikli materiyi i energiyi ta yih vzayemodiyu z gidrosferoyu ta atmosferoyu planeti Specializaciyi vklyuchayut kosmohimiyu biohimiyu i organichnu geohimiyu Skam yanilosti ye najstarishimi vidomimi dokazami nayavnosti zhittya na Zemli 36 Analizuyuchi yih paleontologi mozhut krashe zrozumiti vidi organizmiv sho vinikli na Zemli v dalekomu minulomu Deyaki regioni Zemli taki yak Pilbara u Zahidnij Avstraliyi ta Suhi dolini v Antarktidi rozglyadayutsya v yakosti geologichnih analogiv deyakih regioniv Marsa i takim chinom mozhut dati rozuminnya togo yak shukati na Marsi zhittya yake mozhlivo isnuvalo tam u minulomu Zhittya v Sonyachnij sistemi Redaguvati nbsp Yevropa mozhe mati bakteriyi i mikroorganizmi v okeani pid zamerzloyu poverhneyu U mirkuvannyah pro isnuvannya zhittya za mezhami Zemli neridko pridilyayetsya malo uvagi obmezhennyam nakladenim principami biohimiyi 37 Jmovirnist togo sho zhittya u Vsesviti zasnovane na vugleci zrostaye zavdyaki tomu sho vuglec ye odnim z najbilsh poshirenih elementiv Tilki dva elementi vuglec i kremnij mozhut stanoviti osnovu dlya dosit velikih molekul zdatnih nesti biologichnu informaciyu Yak strukturna osnova dlya zhittya odniyeyu z vazhlivih osoblivostej vuglecyu ye te sho na vidminu vid kremniyu vin mozhe legko brati uchast u formuvanni himichnih zv yazkiv z bagatma inshimi atomami tim samim nadayuchi himichnu bagatostoronnist neobhidnu dlya provedennya reakcij metabolizmu i vidtvorennya Rizni organichni funkcionalni grupi skladeni z vodnyu kisnyu azotu fosforu sirki a takozh bagatoh metaliv takih yak zalizo magnij i cink zabezpechuyut velicheznu riznomanitnist himichnih reakcij Kremnij navpaki vzayemodiye tilki z deyakimi atomami i veliki molekuli na osnovi kremniyu odnomanitni porivnyano z kombinatornim Vsesvitom makromolekul na bazi vuglecyu 37 Naspravdi cilkom mozhlivo sho osnovni budivelni bloki zhittya de nebud budut shozhi na nashi yaksho ne v detalyah to zagalom 37 Hocha zemne zhittya i zhittya yake moglo viniknuti nezalezhno vid Zemli yak peredbachayetsya vikoristovuye bagato shozhih yaksho ne identichnih budivelnih blokiv inoplanetne zhittya mozhlivo matime deyaki biohimichni yakosti yaki ye unikalnimi Yaksho zhittya maye porivnyannij vpliv na seredovishe v inshomu misci Sonyachnoyi sistemi to vidnosnij vmist himichnih rechovin yakimi b voni ne buli mozhut vidati jogo nayavnist 38 nbsp Fotografiyi zrobleni doslidnoyu stanciyeyu Mars Global Surveyor 30 serpnya 1999 roku zliva i 10 veresnya 2005 roku Na ostannij fotografiyi vidno rozmiv zalishenij vodoyu Dumka pro te de v Sonyachnij sistemi moglo b viniknuti zhittya bula istorichno obmezhena perekonannyam sho zhittya v kincevomu pidsumku zalezhit vid svitla i tepla Soncya i tomu obmezhene poverhneyu planeti 37 Troma najvirogidnishimi kandidatami na nayavnist zhittya v Sonyachnij sistemi ye Mars suputnik Yupitera Yevropa i suputnik Saturna Titan 39 40 41 42 43 Ce pripushennya gruntuyetsya nasampered na tomu sho v razi Marsa i Yevropi astronomichni tila mozhut mati ridku vodu molekuli yakoyi neobhidni dlya zhittya v yakosti rozchinnika v klitinah 15 Voda na Marsi znahoditsya u polyarnih krizhanih shapkah i novoutvoreni yari neshodavno pomicheni na Marsi dozvolyayut pripustiti sho ridka voda mozhe isnuvati prinajmni timchasovo na poverhni planeti 44 45 i mozhlivo v pidzemnih umovah v geotermalnih dzherelah Pri marsianskih nizkih temperaturah i nizkomu tisku ridka voda jmovirno bude duzhe solonoyu 46 Sho stosuyetsya Yevropi to ridka voda jmovirno isnuye pid poverhnevim krizhanim sharom 33 39 40 Cya voda mozhe buti nagrita do ridkogo stanu vulkanichnoyu aktivnistyu na dni okeanu ale osnovnim dzherelom tepla jmovirno ye nagriv prilivnimi silami 47 Inshim astronomichnim ob yektom yakij potencijno mozhe pidtrimuvati pozazemne zhittya ye najbilshij suputnik Saturna Titan 43 Vvazhayetsya sho Titan maye umovi blizki do rannoyi Zemli 48 Na jogo poverhni vcheni viyavili pershi ridki ozera za mezhami Zemli ale voni shvidshe za vse skladayutsya z etanu ta abo metanu 49 Pislya vivchennya danih iz zonda Kassini ru v berezni 2008 roku bulo ogolosheno sho Titan takozh mozhe mati pidzemnij okean sho skladayetsya z ridkoyi vodi j amiaku 50 Krim togo suputnik Saturna Encelad mozhe mati okean pid jogo krizhanoyu shapkoyu 51 Gipoteza vinyatkovoyi Zemli RedaguvatiDana gipoteza na pidstavi astrobiologichnih visnovkiv stverdzhuye sho bagatoklitinni formi zhittya mozhut buti bilshoyu ridkistyu nizh spochatku peredbachalosya vchenimi Vona daye mozhlivu vidpovid na paradoks Fermi Yaksho pozazemni civilizaciyi ye dosit poshirenimi to chomu mi ne sposterigayemo zhodnih slidiv rozumnogo pozazemnogo zhittya Cya teoriya ye tochkoyu zoru protilezhnoyu do principu peresichnosti zaproponovanogo vidomimi astronomami Frenkom Drejkom Karlom Saganom ta inshimi Princip peresichnosti pripuskaye sho zhittya na Zemli ne ye vinyatkovim yavishem i z velikoyu chastkoyu jmovirnosti mozhe buti znajdene na bezlichi inshih svitiv Antropnij princip svidchit sho fundamentalni zakoni Vsesvitu specialno vlashtovani takim chinom shob bulo mozhlive isnuvannya zhittya Antropnij princip pidtrimuye gipotezu vinyatkovoyi Zemli stverdzhuyuchi sho elementi yaki neobhidni dlya pidtrimannya zhittya na Zemli tak tonko nalashtovani sho shans povtorennya v inshomu misci duzhe malij Stiven Dzhej Guld porivnyav tverdzhennya sho Vsesvit dobre pristosovanij dlya nashogo riznovidu zhittya z vislovlyuvannyami sho sosiski buli zrobleni dovgimi i vuzkimi specialno dlya togo shob voni mogli vpisatisya v suchasni bulochki dlya hot doga abo sho korabli buli vinajdeni v yakosti budinku dlya molyuskiv 52 53 Doslidzhennya RedaguvatiHocha opis pozazemnogo zhittya ye nevirishenim pitannyam a gipotezi ta prognozi shodo jogo isnuvannya j pohodzhennya shiroko variyuyutsya prote rozvitok teorij dlya pidtrimki poshuku zhittya v danij chas mozhna vvazhati najbilsh konkretnim praktichnim zastosuvannyam astrobiologiyi Biolog Dzhek Koen i matematik Yan Styuart sered inshogo rozglyadayut ksenobiologiyu okremo vid astrobiologiyi Koen i Styuart vvazhayut sho astrobiologiya ce poshuk zhittya podibno do togo yake isnuye na Zemli za mezhami nashoyi Sonyachnoyi sistemi v toj chas yak ksenobiologiya zajmayetsya doslidzhennyami v tih vipadkah koli mi pripuskayemo sho zhittya ne zasnovane na bazi vuglecyu abo kisnevogo dihannya ale doki vono maye viznachalni harakteristiki zhittya div Vuglecevij shovinizm Rezultati doslidzhen Redaguvati nbsp Asteroyidi mozhut prinositi kosmichni organizmi na Zemlyu U minuli stolittya nayavnist zhittya na planetah Sonyachnoyi sistemi vvazhalosya dosit imovirnoyu Osoblivo ce pov yazuvali z viyavlennyam metodami astronomiyi sezoniv pir roku mozhlivih moriv i sushi i tak zvanih kanaliv na Marsi ru Navit isnuvali abstraktni pripushennya pro isnuvannya selenitiv ru marsiyan tosho Deyaki vcheni she na pochatku XX stolittya vvazhali nayavnist marsianskoyi roslinnosti dovedenoyu a venerianskoyi mozhlivoyu Pochinayuchi z drugoyi polovini XX stolittya vcheni vedut cilespryamovani poshuki pozazemnogo zhittya v mezhah Sonyachnoyi sistemi i za yiyi mezhami osoblivo za dopomogoyu avtomatichnih mizhplanetnih stancij AMS i kosmichnih teleskopiv Dani doslidzhen meteoritiv verhnih shariv atmosferi Zemli i dani zibrani v ramkah kosmichnih program dozvolyayut deyakim vchenim stverdzhuvati sho najprostishi formi zhittya mozhut isnuvati na inshih planetah Sonyachnoyi sistemi Pri comu zgidno z suchasnim naukovim uyavlennyam jmovirnist viyavlennya visokoorganizovanogo zhittya na vsih planetah Sonyachnoyi sistemi krim Marsa i deyakih suputnikiv Yupitera i Saturna vkraj mala Do teperishnogo chasu dokaziv nayavnosti pozazemnogo zhittya znajdeno ne bulo Prote 6 serpnya 1996 roku vcheni NASA pislya doslidzhennya meteorita ALH 84001 zayavili pro te sho meteorit mozhe mistiti dokazi slidiv zhittya na Marsi Pri skanuvanni struktur meteorita rastrovim elektronnim mikroskopom bulo viyavleno skam yanilosti yaki nagadali vchenim slidi zemnih organizmiv tak zvanih magnitotaktichnih bakterij Doslidniki stverdzhuvali sho same taki specifichni skam yanilosti zalishayut bakteriyi na Zemli tomu viyavlennya identichnih skam yanilostej v meteoriti svidchit na korist isnuvannya bakterij na jogo ridnij planeti Razom z tim strukturi znajdeni na ALH 84001 mayut diametr 20 100 nanometriv sho blizko do teoretichnih nanobakterij i v razi menshe bud yakoyi vidomoyi nauci klitinnoyi formi zhittya Zalishayetsya neyasnim chi svidchit ce pro te sho na Marsi bulo chi ye zhittya abo zh jmovirni zhivi organizmi potrapili na meteorit vzhe na Zemli pislya jogo padinnya 54 55 56 57 Pro mozhlivu nayavnist zhivih istot na poverhni Veneri zayaviv u sichni 2012 roku golovnij naukovij spivrobitnik Institutu kosmichnih doslidzhen RAN ru Leonid Ksanfomaliti Pri vivchenni fotografij peredanih radyanskimi aparatami v 1970 i i 1980 i roki vin viyaviv yakis ob yekti yaki z yavlyayutsya i znikayut na seriyi poslidovnih znimkiv Napriklad ob yekt skorpion z yavlyayetsya na fotografiyi cherez 90 hvilin pislya vklyuchennya kameri i cherez 26 hvilin znikaye zalishivshi pislya sebe kanavku v grunti Ksanfomaliti vvazhaye sho pid chas posadki modul stvoriv silnij shum i meshkanci pokinuli misce posadki a cherez deyakij chas koli vse stihlo voni povernulisya 58 U 2010 roci grupa vchenih z NASA zayavila na pidstavi otrimanih iz zonda Kassini danih pro viyavlennya na suputniku Saturna Titani nepryamih oznak zhittyediyalnosti primitivnih organizmiv div Zhittya na Titani Poshuki zhittya na misci na suputnikah Yupitera peredbachayutsya u perspektivnih programah AMS z spusknimi aparatami kriobotami ru gidrobotami tipu Laplasa P ru tosho Metan Redaguvati U 2004 roci nazemnimi teleskopami i zondom Mars Express bulo viyavleno spektralnij marker metanu v atmosferi Marsu Cherez sonyachnu radiaciyu i kosmichne viprominyuvannya za prognozami vchenih metan mav zniknuti z atmosferi Marsa protyagom dekilkoh rokiv Takim chinom gaz povinen aktivno popovnyuvatisya shob pidtrimuvati nayavnu koncentraciyuVladimir A Krasnopolsky February 2005 Some problems related to the origin of methane on Mars Icarus 180 2 359 367 doi 10 1016 j icarus 2005 10 015 Arhiv originalu za 28 grudnya 2008 Procitovano 5 bereznya 2019 lt ref gt 59 Odnim z doslidiv marsohoda Mars Science Laboratory zapushenogo 25 listopada 2011 roku malo buti tochne vimiryuvannya spivvidnoshennya izotopiv kisnyu i vuglecyu u vuglekislomu gazi CO2 i metani CH4 v atmosferi Marsa z metoyu viznachennya geohimichenogo abo biologichnogo pohodzhennya metanu 60 61 62 Planetni sistemi Redaguvati Mozhlivo sho u deyakih planet v Sonyachnij sistemi takih yak gazovij gigant Yupiter mozhut buti suputniki z tverdoyu poverhneyu abo ridkim okeanom yaki ye bilsh pridatnimi dlya zhittya Bilshist planet viyavlenih za mezhami Sonyachnoyi sistemi ye garyachimi gazovimi gigantami i nepridatni dlya zhittya Takim chinom tochno ne vidomo ye chi Sonyachna sistema z takoyu planetoyu yak Zemlya unikalnoyu chi ni Vdoskonaleni metodi viyavlennya i zbilshenij chas sposterezhen bezsumnivno dozvolyat viyaviti bilshe planetnih sistem i mozhlivo deyaki z nih budut yak Zemlya Napriklad misiya Kepler priznachena dlya viyavlennya planet rozmirom z Zemlyu navkolo inshih zirok shlyahom vimiryuvannya najdribnishih zmin u krivij blisku zirki koli planeta prohodit mizh zirkoyu i teleskopom Progres v galuzi infrachervonoyi i submilimetrovoyi astronomiyi vidkriv komponenti inshih zoryanih sistem Infrachervoni doslidzhennya viyavili navkolo dalekih zirok poyasi pilu i asteroyidiv sho lezhat v osnovi formuvannya planet Zhittyepridatnist planeti Redaguvati Zusillya spryamovani dlya vidpovidi na pitannya Yaka poshirenist potencijno zhilih planet mali pevnij uspih 2 lyutogo 2011 roku ucheni sho doslidzhuyut dani z teleskopa Kepler ogolosili sho ye 54 kandidati v planeti sho znahodyatsya v zoni zhittya svoyih zirok Prichomu 5 z nih mayut rozmir yakij mozhna porivnyati z Zemleyu 63 Takozh vedetsya doslidzhennya shodo obmezhen navkolishnogo seredovisha dlya zhittya i roboti ekstremalnih ekosistem dozvolyayuchi doslidnikam peredbachiti yake planetne seredovishe moglo b buti najpridatnishim dlya zhittya Taki misiyi yak spusknij aparat Feniks Mars Science Laboratory i ExoMars do Marsa zond Kassini do suputnika Saturna Titanu i misiya Ice Clipper na suputniku Yupitera Yevropi dayut nadiyu na podalshe vivchennya mozhlivosti nayavnosti zhittya na inshih planetah nashoyi Sonyachnoyi sistemi Misiyi RedaguvatiPrograma Viking Redaguvati Dokladnishe Programa Viking V kinci 1970 h rokiv dva lenderi Vikinga veli chotiri vidi biologichnih eksperimentiv na poverhni Marsa Ce buli yedini lenderi Marsa yaki provodili eksperimenti specialno priznacheni dlya vivchennya metabolizmu suchasnogo mikrobnogo zhittya na Marsi Posadochni mashini vikoristovuvali robotizovanu ruku dlya zboru prob gruntu v germetichni viprobuvalni kontejneri na sudni Obidva lenderi buli odnakovimi tomu ti sami viprobuvannya provodilisya u dvoh miscyah na poverhni Marsa Viking 1 bilya ekvatora i Viking 2 dali na pivnich Rezultat buv neperekonlivim i dosi zaperechuyetsya deyakimi vchenimi 64 65 66 67 Beagle 2 Redaguvati Dokladnishe Bigl 2Beagle 2 buv nevdalim posadkovim pristroyem British Mars yakij buv chastinoyu misiyi Yevropejskogo kosmichnogo agentstva Mars ekspres u 2003 roci Jogo osnovna meta polyagala v tomu shob shukati oznaki zhittya na Marsi v minulomu abo sogodenni Hocha vin prizemlivsya bezpechno vin ne zmig pravilno rozgornuti svoyi sonyachni batareyi i telekomunikacijnu antenu 68 EXPOSE Redaguvati EXPOSE ce bagatokoristuvackij ob yekt vstanovlenij u 2008 roci za mezhami Mizhnarodnoyi kosmichnoyi stanciyi prisvyachenoyi astrobiologiyi EXPOSE bulo rozrobleno Yevropejskim kosmichnim agentstvom YeKA dlya dovgostrokovih kosmichnih polotiv yaki dozvolyayut piddavati organichni himichni rechovini ta biologichni zrazki vplivu kosmichnogo prostoru na nizkij navkolozemnij orbiti 69 Naukova laboratoriya Marsa Redaguvati Dokladnishe Marsianska naukova laboratoriyaMisiya Naukovoyi laboratoriyi Marsa MSL prizemlilasya na marsohodi yakij v danij chas pracyuye na Marsi Vin buv zapushenij 26 listopada 2011 roku i prizemlivsya v Krateri Gejl 6 serpnya 2012 roku Zavdannya misiyi polyagaye v tomu shob dopomogti ociniti pridatnist Marsa i pri comu viznachiti chi pidtrimuye abo koli nebud pidtrimuvav Mars zhittya zbirati dani dlya majbutnoyi misiyi lyudini vivchiti marsiansku geologiyu yiyi klimat i dali ocinyuvati yaku rol voda vazhlivij ingrediyent dlya zhittya grala u formuvanni mineraliv na Marsi 70 Ekzomars marsohid Redaguvati Dokladnishe EkzoMarsExoMars ce robotizovana misiya na Mars dlya poshuku mozhlivih biosignaliv zhittya na Marsi minulogo abo suchasnogo Cya astrobiologichna misiya rozroblyayetsya Yevropejskim kosmichnim agentstvom YeKA u partnerstvi z Federalnim kosmichnim agentstvom Rosiyi Roskosmos 71 72 73 Red Dragon Redaguvati Dokladnishe Red DragonChervonij Drakon ce zaplanovana seriya nedorogih misij z prizemlennya na Mars v yakih bude vikoristovuvatisya raketa nosij SpaceX Falcon Heavy a takozh modifikovana kapsula Dragon V2 dlya vhodu v atmosferu Marsa i Zemli z vikoristannyam retrospektakliv Osnovna misiya posadkovogo majdanchika demonstraciya tehnologiyi ta poshuk svidchen pro zhittya na Marsi biosignaliv v minulomu abo sogodenni Cya koncepciya povinna bula konkuruvati za finansuvannya u 2012 2013 rokah yak misiya NASA Discovery U kvitni 2016 roku SpaceX ogolosila pro te sho voni pristuplyat do vikonannya misiyi za tehnichnoyi pidtrimki NASA raketa Falcon Heavy bude zapushena v 2018 roci Ci misiyi na Marsi takozh stanut vidpravnimi tochkami dlya nabagato bilshoyi kolonizaciyi SpaceX Mars pro yaku bulo ogolosheno u veresni 2016 roku 74 Mars 2020 Redaguvati Dokladnishe Mars 2020Marshrutna misiya Mars 2020 ce koncepciya sho rozroblyayetsya NASA z mozhlivim zapuskom u 2020 roci Vona priznachena dlya doslidzhennya umov na Marsi sho stosuyutsya astrobiologiyi vivchennya poverhnevih geologichnih procesiv j istoriyi vklyuchno z ocinkoyu jogo minuloyi naselenosti j potencialu dlya zberezhennya biosignaliv ta biomolekul u dostupnih geologichnih materialah Komanda viznachennya nauki proponuye zibrati shonajmenshe 31 zrazok girskih porid i gruntu dlya nastupnoyi misiyi shob povernutisya do detalnishogo analizu v laboratoriyah na Zemli Marsohid zmozhe provesti vimiryuvannya i nadati tehnichni dani shob dopomogti rozrobnikam lyudskoyi ekspediciyi zrozumiti bud yaki nebezpeki stvoryuvani marsianskim pilom i prodemonstruvati yak zbirati vuglekislij gaz CO2 yakij mozhe buti resursom dlya otrimannya molekulyarnogo kisnyu O2 i raketnogo paliva 75 76 Proponovani misiyi RedaguvatiIcebreaker Life Redaguvati Icebreaker Life ce misiya yaka proponuyetsya programi NASA Discovery dlya zapusku v 2018 roci Yaksho vona yiyi bude obrano i vona bude finansuvatisya stacionarnij posadkovij aparat stane najblizhchoyu kopiyeyu uspishnogo Feniksa 2008 roku i vin bude mati onovlene naukovo korisne astrobiologichne navantazhennya zokrema 1 metrovu burovu ustanovku dlya vidboru prob lodu v pivnichnih rivninah dlya provedennya poshuku organichnih molekul i dovedennya potochnogo abo minulogo zhittya na Marsi Odniyeyu z klyuchovih cilej misiyi Icebreaker Life ye perevirka gipotezi pro te sho krizhanij grunt u polyarnih regionah maye znachnu koncentraciyu organichnih rechovin zavdyaki zahistu krigoyu vid okislyuvachiv i radiaciyi Podorozh do Encelada i Titana Redaguvati Podorozh do Encelada i Titana ye koncepciyeyu orbitalnoyi astrobiologichnoyi orbiti dlya ocinki potencialu naselenosti suputnikiv Saturna Encelada i Titana 77 78 79 Enceladus Life Finder Redaguvati Dokladnishe Enceladus Life FinderEnceladus Life Finder ELF proponovana koncepciya astrobiologichnoyi 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