{"id":9948,"date":"2021-07-05T21:20:20","date_gmt":"2021-07-06T00:20:20","guid":{"rendered":"https:\/\/biologo.com.br\/bio\/?p=9948"},"modified":"2021-07-11T04:09:49","modified_gmt":"2021-07-11T07:09:49","slug":"carl-sagan","status":"publish","type":"post","link":"https:\/\/biologo.com.br\/bio\/carl-sagan\/","title":{"rendered":"Carl Sagan"},"content":{"rendered":"<p><span style=\"font-size: 14pt; color: #000000;\"><span style=\"color: #3366ff;\"><strong>Carl Sagan <\/strong><span style=\"color: #000000;\">foi um dos grandes pensadores da ci\u00eancia da era moderna, conhecido especialmente por sua pesquisa sobre vida extraterrestre. Bi\u00f3logo, f\u00edsico, astr\u00f4nomo, astrof\u00edsico, cosm\u00f3logo, escritor, ativista e divulgador cient\u00edfico norte-americano, Sagan ajudou a popularizar a ci\u00eancia como poucos o fizeram. <\/span><\/span><\/span><span style=\"font-size: 14pt; color: #000000;\"><span style=\"color: #3366ff;\"><span style=\"color: #000000;\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"9413\" data-permalink=\"https:\/\/biologo.com.br\/bio\/dia-mundial-das-abelhas\/original-biologo\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2021\/05\/ORIGINAL-biologo.jpg?fit=65%2C80&amp;ssl=1\" data-orig-size=\"65,80\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"ORIGINAL-biologo\" data-image-description=\"&lt;p&gt;artigo original www.biologo.com.br &amp;#8211; Todos os direitos reservados&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2021\/05\/ORIGINAL-biologo.jpg?fit=65%2C80&amp;ssl=1\" class=\"alignright wp-image-9413 size-full\" title=\"artigo original www.biologo.com.br\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2021\/05\/ORIGINAL-biologo.jpg?resize=65%2C80&#038;ssl=1\" alt=\"artigo original www.biologo.com.br\" width=\"65\" height=\"80\" \/><\/span><\/span><\/span><\/p>\n<h2><span style=\"font-family: 'courier new', courier, monospace; font-size: 24pt; color: #000000;\"><strong>Carl Sagan <span style=\"font-size: 18pt;\">e a exobiologia<\/span><\/strong><\/span><\/h2>\n<p><span style=\"font-size: 8pt; color: #000000;\">5\/7\/2021 ::\u00a0 Por Josu\u00e9 Fontana<\/span><\/p>\n<p><span style=\"color: #000000;\"><span style=\"font-family: georgia, palatino, serif; font-size: 24pt;\"><strong>P<\/strong><\/span><\/span><span style=\"color: #000000;\">assado um quarto de s\u00e9culo de sua morte, Carl Edward Sagan (1934-1996) permanece como um dos cientistas que ajudaram a definir os limites da ci\u00eancia. Mais que isso, era um fervoroso defensor do uso do <span style=\"text-decoration: underline;\"><a style=\"color: #000000; text-decoration: underline;\" href=\"https:\/\/biologo.com.br\/bio\/aspectos-do-metodo-cientifico\/\">m\u00e9todo cient\u00edfico<\/a><\/span> e do ceticismo.\u00a0<\/span><\/p>\n<figure id=\"attachment_9951\" aria-describedby=\"caption-attachment-9951\" style=\"width: 300px\" class=\"wp-caption alignright\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"9951\" data-permalink=\"https:\/\/biologo.com.br\/bio\/carl-sagan\/carl-sagan-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2021\/07\/Carl-Sagan.jpg?fit=631%2C351&amp;ssl=1\" data-orig-size=\"631,351\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Carl-Sagan\" data-image-description=\"&lt;p&gt;Carl Sagan e a exobiologia. Carl Edward Sagan (Nova Iorque, 9 de novembro de 1934 \u2014 Seattle, 20 de dezembro de 1996) foi um cientista, f\u00edsico, bi\u00f3logo, astr\u00f4nomo, astrof\u00edsico, cosm\u00f3logo, escritor, divulgador cient\u00edfico e ativista norte-americano.[3] Sagan \u00e9 autor de mais de 600 publica\u00e7\u00f5es cient\u00edficas[4][5] e tamb\u00e9m de mais de vinte livros de ci\u00eancia e fic\u00e7\u00e3o cient\u00edfica&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2021\/07\/Carl-Sagan.jpg?fit=631%2C351&amp;ssl=1\" class=\"wp-image-9951 size-medium\" title=\"Carl Sagan e a exobiologia\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2021\/07\/Carl-Sagan.jpg?resize=300%2C167&#038;ssl=1\" alt=\"Carl Sagan e a exobiologia\" width=\"300\" height=\"167\" srcset=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2021\/07\/Carl-Sagan.jpg?resize=300%2C167&amp;ssl=1 300w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2021\/07\/Carl-Sagan.jpg?w=631&amp;ssl=1 631w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-9951\" class=\"wp-caption-text\"><span style=\"font-size: 10pt; color: #000000;\">Carl Sagan (1934-1996)<\/span><\/figcaption><\/figure>\n<p><span style=\"color: #000000;\">Autor de mais de vinte livros de ci\u00eancia e fic\u00e7\u00e3o cient\u00edfica, al\u00e9m de centenas de publica\u00e7\u00f5es cient\u00edficas, Sagan foi pioneiro no ramo da <a href=\"https:\/\/biologo.com.br\/bio\/documentario-exobiologia\/\">exobiologia<\/a>. Mas provavelmente o maior legado de sua carreira tenha sido sua voz na populariza\u00e7\u00e3o da ci\u00eancia \u2014 Carl chamou a aten\u00e7\u00e3o da sociedade com a sua premiada s\u00e9rie de TV &#8220;Cosmos: Uma Viagem Pessoal&#8221; (1980), narrada e escrita por ele.<\/span><\/p>\n<ul>\n<li><span style=\"font-size: 14pt; color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/biologo.com.br\/bio\/astrobiologia-a-vida-fora-da-terra\/\">Astrobiologia: a vida fora da Terra<\/a><\/span><\/li>\n<li><span style=\"font-size: 14pt; color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/biologo.com.br\/bio\/criacionismo-x-evolucao\/\">Criacionismo x Evolu\u00e7\u00e3o<\/a><\/span><\/li>\n<\/ul>\n<blockquote><p><span style=\"color: #ffffff;\"><strong><span style=\"font-family: 'courier new', courier, monospace; font-size: 12pt;\">\u201cEm algum lugar, algo incr\u00edvel est\u00e1 esperando para ser conhecido.\u201d<\/span><\/strong><\/span><\/p><\/blockquote>\n<h3><span style=\"font-family: 'courier new', courier, monospace; font-size: 12pt; color: #000000;\"><strong>Carreira\u00a0<\/strong><\/span><\/h3>\n<figure id=\"attachment_5820\" aria-describedby=\"caption-attachment-5820\" style=\"width: 101px\" class=\"wp-caption alignleft\"><a href=\"https:\/\/biologo.com.br\/bio\/o-sistema-solar\/\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"5820\" data-permalink=\"https:\/\/biologo.com.br\/bio\/o-sistema-solar\/sistema-solar\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/04\/sistema-solar.jpg?fit=631%2C351&amp;ssl=1\" data-orig-size=\"631,351\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"sistema-solar\" data-image-description=\"&lt;p&gt;The International Astronomical Union\/Martin Kornmesser&lt;\/p&gt;\n\" data-image-caption=\"&lt;p&gt;by The International Astronomical Union\/Martin Kornmesser&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/04\/sistema-solar.jpg?fit=631%2C351&amp;ssl=1\" class=\"wp-image-5820\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/04\/sistema-solar.jpg?resize=101%2C104&#038;ssl=1\" alt=\"O sistema solar\" width=\"101\" height=\"104\" \/><\/a><figcaption id=\"caption-attachment-5820\" class=\"wp-caption-text\"><a href=\"https:\/\/biologo.com.br\/bio\/o-sistema-solar\/\"><span style=\"font-size: 10pt;\">O sistema solar<\/span><\/a><\/figcaption><\/figure>\n<p><span style=\"color: #000000;\">Carl Sagan estudou na Universidade de Chicago, participando tamb\u00e9m da Ryerson Astronomical Society, onde se formou em artes em 1954, e em ci\u00eancias, em 55.<\/span><\/p>\n<p><span style=\"color: #000000;\">Completou um mestrado em f\u00edsica em 1956 e doutorados em astrof\u00edsica e astronomia em 1960. Ap\u00f3s a publica\u00e7\u00e3o de um artigo de Sagan na Science, em 1961, astr\u00f4nomos da Universidade de Harvard ofereceram a ele a oportunidade de dar um col\u00f3quio na universidade e depois um cargo de professor. Sagan, no entanto, pediu o cargo de professor assistente, o que acabou se concretizando. <\/span><\/p>\n<p><a href=\"https:\/\/biologo.com.br\/bio\/documentario-exobiologia\/\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"2070\" data-permalink=\"https:\/\/biologo.com.br\/bio\/documentario-exobiologia\/exobiologia\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2017\/03\/exobiologia.jpg?fit=631%2C351&amp;ssl=1\" data-orig-size=\"631,351\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"exobiologia\" data-image-description=\"&lt;p&gt;Document\u00e1rio exobiologia. by ESO\/A. Fitzsimmons&lt;\/p&gt;\n\" data-image-caption=\"&lt;p&gt;Document\u00e1rio exobiologia&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2017\/03\/exobiologia.jpg?fit=631%2C351&amp;ssl=1\" class=\"alignright wp-image-2070 size-thumbnail\" title=\"Carl Sagan e a exobiologia\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2017\/03\/exobiologia.jpg?resize=150%2C150&#038;ssl=1\" alt=\"Document\u00e1rio exobiologia - Carl Sagan \" width=\"150\" height=\"150\" srcset=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2017\/03\/exobiologia.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2017\/03\/exobiologia.jpg?zoom=2&amp;resize=150%2C150&amp;ssl=1 300w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2017\/03\/exobiologia.jpg?zoom=3&amp;resize=150%2C150&amp;ssl=1 450w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><\/p>\n<blockquote><p><span style=\"font-family: 'courier new', courier, monospace; font-size: 12pt; color: #ffffff;\"><strong>\u201cUma descoberta extraordin\u00e1ria requer provas extraordin\u00e1rias\u201d. <\/strong>&#8211; C.S<\/span><\/p><\/blockquote>\n<p><span style=\"color: #000000;\">De 1963 a 1968, em Harvard ent\u00e3o, Sagan deu aulas e fez pesquisas, al\u00e9m de orientar alunos de p\u00f3s-gradua\u00e7\u00e3o. Tamb\u00e9m trabalhou no Smithsonian Astrophysical Observatory.<\/span><\/p>\n<ul>\n<li><span style=\"font-size: 14pt; color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/biologo.com.br\/bio\/as-grandes-questoes-da-ciencia\/\">As Grandes Quest\u00f5es da Ci\u00eancia<\/a><\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">Em 1968 ele seguiu para a Universidade Cornell. Foi nomeado professor titular e diretor do laborat\u00f3rio de estudos planet\u00e1rios em 1971. De 1972 a 1981, foi diretor associado no Centro de Radiof\u00edsica e Investiga\u00e7\u00e3o Espacial de Cornell. Juntamente ao seu cargo de professor titular, Sagan ministrou um curso de pensamento cr\u00edtico na Universidade Cornell at\u00e9 sua morte, em 1996.<\/span><\/p>\n<blockquote><p><span style=\"font-family: 'courier new', courier, monospace; color: #ffffff;\"><strong>O Universo n\u00e3o parece ser nem benigno nem hostil \u2013 apenas indiferente.&#8221; <\/strong>&#8211; C.S.<\/span><\/p><\/blockquote>\n<p><img data-recalc-dims=\"1\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/i0.wp.com\/i.pinimg.com\/originals\/0c\/b6\/ae\/0cb6ae39f2c2f47c0f54aa58bc1bb896.gif?w=800&#038;ssl=1\" alt=\"Carl Sagan | Carl sagan, Sagan, Astronomia\" \/><\/p>\n<blockquote><p><span style=\"color: #ffffff;\"><strong><span style=\"font-family: 'courier new', courier, monospace; font-size: 12pt;\">\u201cVale a pena manter a mente aberta, mas n\u00e3o t\u00e3o aberta que seus c\u00e9rebros caiam.\u201d <\/span><\/strong><span style=\"font-family: 'courier new', courier, monospace; font-size: 12pt;\">&#8211; C.S.<\/span><\/span><\/p><\/blockquote>\n<h4><span style=\"font-family: 'courier new', courier, monospace; font-size: 12pt; color: #000000;\"><strong>Legado<\/strong><\/span><\/h4>\n<figure id=\"attachment_9222\" aria-describedby=\"caption-attachment-9222\" style=\"width: 111px\" class=\"wp-caption alignright\"><a href=\"https:\/\/biologo.com.br\/bio\/hipotese-de-gaia\/\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"9222\" data-permalink=\"https:\/\/biologo.com.br\/bio\/hipotese-de-gaia\/teoria-de-gaia\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2021\/04\/Teoria-de-Gaia.jpg?fit=631%2C351&amp;ssl=1\" data-orig-size=\"631,351\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Teoria-de-Gaia\" data-image-description=\"&lt;p&gt;A hip\u00f3tese de Gaia, tamb\u00e9m denominada hip\u00f3tese biogeoqu\u00edmica,[1] \u00e9 uma hip\u00f3tese da ecologia profunda que prop\u00f5e que a biosfera e os componentes f\u00edsicos da Terra (atmosfera, criosfera, hidrosfera e litosfera) s\u00e3o intimamente integrados de modo a formar um complexo sistema interagente que mant\u00e9m as condi\u00e7\u00f5es clim\u00e1ticas e biogeoqu\u00edmicas preferivelmente em homeostase.&lt;\/p&gt;\n&lt;p&gt;Originalmente proposta pelo investigador brit\u00e2nico James E. Lovelock em 1972 como &amp;#8220;Hip\u00f3tese de resposta da Terra&amp;#8221;,[2] ela foi renomeada conforme sugest\u00e3o de seu colega, William Golding, como Hip\u00f3tese de Gaia&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2021\/04\/Teoria-de-Gaia.jpg?fit=631%2C351&amp;ssl=1\" class=\"wp-image-9222\" title=\"Carl Sagan\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2021\/04\/Teoria-de-Gaia.jpg?resize=111%2C121&#038;ssl=1\" alt=\"Teoria-de-Gaia-Hipotese-de-gaia - Carl Sagan \" width=\"111\" height=\"121\" \/><\/a><figcaption id=\"caption-attachment-9222\" class=\"wp-caption-text\"><span style=\"font-size: 10pt;\"><a href=\"https:\/\/biologo.com.br\/bio\/hipotese-de-gaia\/\">Teoria de Gaia<\/a><\/span><\/figcaption><\/figure>\n<ul>\n<li><span style=\"color: #000000;\">Habilmente, Sagan foi capaz de se comunicar com os leigos e apresentar o cosmos para eles, ressaltando como a Terra \u00e9 insignificante diante do Universo. Deste modo, conseguiu grande aten\u00e7\u00e3o e curiosidade da sociedade para uma das quest\u00f5es mais intrigantes da ci\u00eancia, a busca por vida extraterrestre.\u00a0<\/span><\/li>\n<li><span style=\"color: #000000;\">Sagan participou da\u00a0 prepara\u00e7\u00e3o da <a style=\"color: #000000;\" href=\"https:\/\/revistagalileu.globo.com\/Ciencia\/noticia\/2018\/11\/ha-44-anos-enviavamos-nossa-primeira-mensagem-aos-alienigenas.html\" target=\"_blank\" rel=\"noopener\"><span style=\"text-decoration: underline;\">mensagem de Arecibo<\/span><\/a>, sinais de r\u00e1dio enviadas ao espa\u00e7o por radiotelesc\u00f3pio, para informar sobre a exist\u00eancia da Terra a poss\u00edveis extraterrestres. Tal iniciativa gerou pol\u00eamica, e foi criticada por cientistas como Stephen Hawking. Afinal, se h\u00e1 vida inteligente no espa\u00e7o, ser\u00e1 que \u00e9 seguro fazer contato?<\/span><\/li>\n<\/ul>\n<figure id=\"attachment_7739\" aria-describedby=\"caption-attachment-7739\" style=\"width: 300px\" class=\"wp-caption alignright\"><a href=\"https:\/\/biologo.com.br\/bio\/lynn-margulis\/\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"7739\" data-permalink=\"https:\/\/biologo.com.br\/bio\/lynn-margulis\/lynn-margulis\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/09\/Lynn-Margulis.jpg?fit=631%2C351&amp;ssl=1\" data-orig-size=\"631,351\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Lynn-Margulis\" data-image-description=\"&lt;p&gt;Lynn Margulis: Foi uma importante bi\u00f3loga evolucionista americana, escritora, educadora e divulgadora da ci\u00eancia, e foi a principal proponente moderna para a import\u00e2ncia da simbiose na evolu\u00e7\u00e3o.&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/09\/Lynn-Margulis.jpg?fit=631%2C351&amp;ssl=1\" class=\"wp-image-7739 size-medium\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/09\/Lynn-Margulis.jpg?resize=300%2C167&#038;ssl=1\" alt=\"Lynn Margulis\" width=\"300\" height=\"167\" srcset=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/09\/Lynn-Margulis.jpg?resize=300%2C167&amp;ssl=1 300w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/09\/Lynn-Margulis.jpg?w=631&amp;ssl=1 631w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-7739\" class=\"wp-caption-text\"><span style=\"font-size: 10pt;\">Em 1957 se casou com a bi\u00f3loga <a href=\"https:\/\/biologo.com.br\/bio\/lynn-margulis\/\">Lynn Margulis<\/a><\/span><\/figcaption><\/figure>\n<ul>\n<li><span style=\"color: #000000;\">Na guerra fria, alertou sobre os efeitos de uma poss\u00edvel guerra nuclear, sugerindo que as bombas desestabilizariam o fr\u00e1gil equil\u00edbrio do nosso planeta. A preocupa\u00e7\u00e3o do cientista gerou um segmento precioso no epis\u00f3dio final da s\u00e9rie Cosmos, <span style=\"text-decoration: underline;\"><a style=\"color: #000000; text-decoration: underline;\" href=\"https:\/\/www.youtube.com\/watch?v=VxQVDPsxbzs\" target=\"_blank\" rel=\"noopener\">Quem fala em nome da Terra<\/a><\/span>?.<\/span><\/li>\n<li><span style=\"color: #000000;\">Depois de se casar com a escritora Ann Druyan, em 1981, Sagan se engajou politicamente contra a corrida armamentista de Ronald Reagan e seu projeto de defesa, o\u00a0 <span style=\"text-decoration: underline;\"><a style=\"color: #000000; text-decoration: underline;\" href=\"https:\/\/pt.wikipedia.org\/wiki\/Iniciativa_Estrat%C3%A9gica_de_Defesa#:~:text=A%20Iniciativa%20Estrat%C3%A9gica%20de%20Defesa,nuclear%20contra%20o%20territ%C3%B3rio%20dos\" target=\"_blank\" rel=\"noopener\">Programa Guerra nas Estrelas<\/a><\/span>.<\/span><\/li>\n<li><span style=\"color: #000000;\">Foi cofundador da Sociedade Planet\u00e1ria, o maior grupo do mundo dedicado \u00e0 pesquisa espacial.<\/span><\/li>\n<li><span style=\"color: #000000;\">Sagan escrevia muito sobre religi\u00e3o e o conflito desta com a ci\u00eancia, expressando sempre seu ceticismo sobre Deus como o criador.<\/span><\/li>\n<\/ul>\n<figure id=\"attachment_1040\" aria-describedby=\"caption-attachment-1040\" style=\"width: 128px\" class=\"wp-caption alignright\"><a href=\"https:\/\/biologo.com.br\/bio\/richard-dawkins\/\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"1040\" data-permalink=\"https:\/\/biologo.com.br\/bio\/frases-de-biologos-famosos\/richard-dawkins\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2016\/08\/richard-dawkins.jpg?fit=631%2C351&amp;ssl=1\" data-orig-size=\"631,351\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"richard-dawkins\" data-image-description=\"&lt;p&gt;Richard Dawkins&lt;\/p&gt;\n\" data-image-caption=\"&lt;p&gt;Richard Dawkins&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2016\/08\/richard-dawkins.jpg?fit=631%2C351&amp;ssl=1\" class=\"wp-image-1040\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2016\/08\/richard-dawkins.jpg?resize=128%2C131&#038;ssl=1\" alt=\"Richard Dawkins\" width=\"128\" height=\"131\" \/><\/a><figcaption id=\"caption-attachment-1040\" class=\"wp-caption-text\"><span style=\"font-size: 8pt;\">leia tamb\u00e9m: <a href=\"https:\/\/biologo.com.br\/bio\/richard-dawkins\/\">Dawkins<\/a><\/span><\/figcaption><\/figure>\n<h5><span style=\"font-family: 'courier new', courier, monospace; font-size: 10pt;\"><strong><br \/>\nFontes e refer\u00eancias:<\/strong><\/span><\/h5>\n<ul>\n<li><span style=\"font-size: 8pt; color: #000000;\"><a style=\"color: #000000;\" href=\"https:\/\/carlsagan.com\/\" target=\"_blank\" rel=\"noopener\">The Carl Sagan Portal<\/a> &#8211; carlsagan.com &#8211; Site oficial, em ingl\u00eas.<\/span><\/li>\n<li><span style=\"font-size: 8pt; color: #000000;\"><a class=\"external text\" style=\"color: #000000;\" href=\"https:\/\/archive.org\/details\/cosmicconnection00saga_1\" rel=\"nofollow\"><i>The Cosmic Connection: An Extraterrestrial Perspective<\/i><\/a><i> &#8211; Em ingl\u00eas<\/i><\/span><\/li>\n<li><span style=\"font-size: 8pt; color: #000000;\"><a class=\"external text\" style=\"color: #000000;\" href=\"https:\/\/archive.org\/details\/otherworlds00saga\" rel=\"nofollow\"><i>Other Worlds<\/i><\/a> &#8211; Em ingl\u00eas<\/span><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Carl Sagan foi um dos grandes pensadores da ci\u00eancia da era moderna, conhecido especialmente por sua pesquisa sobre vida extraterrestre.<\/p>\n","protected":false},"author":1,"featured_media":9951,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"Carl Sagan foi um dos grandes pensadores da ci\u00eancia, conhecido por sua pesquisa sobre vida extraterrestre. Bi\u00f3logo, f\u00edsico, astr\u00f4nomo, astrof\u00edsico, cosm\u00f3logo, escritor, ativista e divulgador cient\u00edfico norte-americano, Sagan ajudou a popularizar a ci\u00eancia","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[16,3,143],"tags":[],"class_list":["post-9948","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-astrobiologia","category-bioetica","category-biofisica"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Carl Sagan e a exobiologia - Grandes mentes da ci\u00eancia - Bi\u00f3logo<\/title>\n<meta name=\"description\" content=\"Carl Sagan foi um dos grandes pensadores da ci\u00eancia. 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