{"id":9953,"date":"2015-03-23T00:25:48","date_gmt":"2015-03-22T22:25:48","guid":{"rendered":"http:\/\/omnium.whads.com\/present-i-futur-de-la-vida-a-lunivers\/"},"modified":"2015-03-23T00:25:48","modified_gmt":"2015-03-22T22:25:48","slug":"present-i-futur-de-la-vida-a-lunivers","status":"publish","type":"post","link":"https:\/\/www.omnium.cat\/ca\/present-i-futur-de-la-vida-a-lunivers\/","title":{"rendered":"Present i futur de la vida a l\u2019Univers"},"content":{"rendered":"<div dir=\"ltr\">\n\t<br \/>\n\tLa confer\u00e8ncia l\u2019ha impartida el Dr. Jordi Miralda i Escud\u00e9 , doctor en astrof\u00edsica i professor d\u2019investigaci\u00f3 ICREA a la Universitat de Barcelona, anteriorment professor a les Universitats de Pensilv\u00e0nia i d&#8217;Ohio, que \u00e9s especialista en l\u2019evoluci\u00f3 de l&#8217;Univers i les gal\u00e0xies.<\/p>\n<p>\tEl Dr. Miralda ha comen\u00e7at per &nbsp;presentar-nos la nostra gal\u00e0xia, la &nbsp;la Via L\u00e0ctia, que cont\u00e9 uns cent mil milions d\u2019estrelles, i la gal\u00e0xia ve\u00efna m\u00e9s propera, la d\u2019Andr\u00f2meda.<\/p>\n<p>\tProp de cada estrella hi trobem una zona de comfort per a la vida, anomenada zona habitable, on pot haver-hi aigua l\u00edquida a la superf\u00edcie dels planetes i la vida pot apar\u00e8ixer i evolucionar, i ens posa l\u2019exemple del sistema Kepler 62, descobert recentment per la missi\u00f3 espacial Kepler.<\/p>\n<p>\tLa part central de la confer\u00e8ncia l\u2019ha dirigida a explicar la hist\u00f2ria de l\u2019Univers des del Gran Esclat (el \u201cBig Bang\u201d en angl\u00e8s) fins ara, comprimint els 13800 milions d\u2019anys d\u2019edat de l\u2019Univers en l\u2019espai temporal d\u2019un any per facilitar-ne la comprensi\u00f3, en el que es coneix com a \u201cCalendari C\u00f2smic\u201d, on se situa l\u2019aparici\u00f3 l\u2019home modern en els \u00faltims dos minuts, i el desenvolupament de la ci\u00e8ncia a partir del Renaixement en l\u2019\u00faltim segon del dia 31 de desembre.<\/p>\n<p>\tEns ha dibuxat el diagrama espai-temps com\u00f2bil on es mostra la part de l\u2019Univers observable actualment i el seu origen en el Gran Esclat, malgrat que l\u2019Univers existeix molt m\u00e9s enll\u00e0 i est\u00e0 en continua expansi\u00f3.<\/p>\n<p>\tHa repassat la \u201cParadoxa de Fermi\u201d, que contempla diverses hip\u00f2tesis sobre la possibilitat de civilitzacions tecnol\u00f2gicament avan\u00e7ades en altres planetes plantejant que si existissin ja n\u2019haur\u00edem sabut alguna cosa, i ha presentat perspectives de futur per a la humanitat per viure en col\u00f2nies a l\u2019espai i expandir la nostra pres\u00e8ncia cap a l\u2019Univers, seguint les propostes de Gerard O\u2019Neill, professor de la Universitat de Princeton.<\/p>\n<p>\tFinalment el Dr. Miralda pronostica que cap a l\u2019any 3000, si no ens autodestru\u00efm abans, tindrem col\u00f2nies autosuficients voltant per tot el Sistema Solar on els humans naixeran i viuran permanentment, hi haur\u00e0 m\u00e9s gent vivint a l\u2019espai que no pas a la Terra, i haurem viatjat fins a l\u2019estrella m\u00e9s propera, alfa del Centaure.<\/p>\n<p>\tUn cop acabada la xerrada amb una vuitantena d\u2019assistents, els qui han volgut, han caminat fins a la seu de l\u2018AAT, on es volia fer una observaci\u00f3 nocturna de J\u00fapiter amb les seves llunes. Malauradament, estant el cel n\u00favol i comen\u00e7ant a ploure, no ha estat possible fer-ho i hem quedat citats per una altra ocasi\u00f3.<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Aquest divendres dia 20 de mar\u00e7, a l\u2019Aula Magna del Centre Cultural de Terrassa, l\u2019Agrupaci\u00f3 Astron\u00f2mica de Terrassa i \u00d2mnium Cultural Terrassa, en el marc de les noves col\u00b7laboracions entre ci\u00e8ncia i cultura que han endegat des de fa unes setmanes les dues entitats, han organitzat la confer\u00e8ncia \u201cPresent i futur de la vida a l\u2019Univers\u201d. <\/p>\n","protected":false},"author":32,"featured_media":9954,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[601],"post_headquarter":[1774],"post_project":[1844],"class_list":["post-9953","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized-ca","tag-astronomia-terrassa-centre-cultural","post_headquarter-terrassa","post_project-ciencia-en-catala"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - 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