{"id":626306,"date":"2026-01-18T23:35:44","date_gmt":"2026-01-18T22:35:44","guid":{"rendered":"https:\/\/cronologia-universale.it\/1972-13\/"},"modified":"2026-01-18T23:35:44","modified_gmt":"2026-01-18T22:35:44","slug":"april-20-1967","status":"publish","type":"post","link":"https:\/\/cronologia-universale.it\/en\/april-20-1967\/","title":{"rendered":"April 20, 1967"},"content":{"rendered":"

The unmanned Surveyor 3 probe lands on the Moon; two years later, it will be joined on foot by Pete Conrad, who disembarked from the Apollo 12 LM. From the probe, Pete Conrad and Alan Bean will detach the camera (now on display at the Air & Space Museum in Washington, DC – pictured), whose O-ring will contain live Steptococcus mitis bacteria. The result, however, remains controversial, as it could be a result of contamination after re-entry to Earth.<\/p>\n","protected":false},"excerpt":{"rendered":"

The unmanned Surveyor 3 probe lands on the Moon; two years later, it will be…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[43],"tags":[],"class_list":["post-626306","post","type-post","status-publish","format-standard","hentry","category-vg-en"],"acf":[],"yoast_head":"\nApril 20, 1967 - Cronologia Universale<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cronologia-universale.it\/en\/april-20-1967\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"April 20, 1967 - Cronologia Universale\" \/>\n<meta property=\"og:description\" content=\"The unmanned Surveyor 3 probe lands on the Moon; two years later, it will be...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/cronologia-universale.it\/en\/april-20-1967\/\" \/>\n<meta property=\"og:site_name\" content=\"Cronologia Universale\" \/>\n<meta property=\"article:published_time\" content=\"2026-01-18T22:35:44+00:00\" \/>\n<meta name=\"author\" content=\"Rick\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Rick\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/cronologia-universale.it\/en\/april-20-1967\/\",\"url\":\"https:\/\/cronologia-universale.it\/en\/april-20-1967\/\",\"name\":\"April 20, 1967 - Cronologia Universale\",\"isPartOf\":{\"@id\":\"https:\/\/cronologia-universale.it\/#website\"},\"datePublished\":\"2026-01-18T22:35:44+00:00\",\"author\":{\"@id\":\"https:\/\/cronologia-universale.it\/#\/schema\/person\/f510f53010edc7a70b16caecf1c4af03\"},\"breadcrumb\":{\"@id\":\"https:\/\/cronologia-universale.it\/en\/april-20-1967\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/cronologia-universale.it\/en\/april-20-1967\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/cronologia-universale.it\/en\/april-20-1967\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/cronologia-universale.it\/en\/universal-cronology\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"April 20, 1967\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/cronologia-universale.it\/#website\",\"url\":\"https:\/\/cronologia-universale.it\/\",\"name\":\"Cronologia Universale\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/cronologia-universale.it\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/cronologia-universale.it\/#\/schema\/person\/f510f53010edc7a70b16caecf1c4af03\",\"name\":\"Rick\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/cronologia-universale.it\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/7f707c665808696c8fa12345661bf0ef3aa60982ce3781ec6cc5b16b7b828ba8?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/7f707c665808696c8fa12345661bf0ef3aa60982ce3781ec6cc5b16b7b828ba8?s=96&d=mm&r=g\",\"caption\":\"Rick\"},\"sameAs\":[\"http:\/\/cronologia-universale.it\"],\"url\":\"https:\/\/cronologia-universale.it\/en\/author\/rick\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"April 20, 1967 - Cronologia Universale","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/cronologia-universale.it\/en\/april-20-1967\/","og_locale":"en_US","og_type":"article","og_title":"April 20, 1967 - Cronologia Universale","og_description":"The unmanned Surveyor 3 probe lands on the Moon; two years later, it will be...","og_url":"https:\/\/cronologia-universale.it\/en\/april-20-1967\/","og_site_name":"Cronologia Universale","article_published_time":"2026-01-18T22:35:44+00:00","author":"Rick","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Rick"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/cronologia-universale.it\/en\/april-20-1967\/","url":"https:\/\/cronologia-universale.it\/en\/april-20-1967\/","name":"April 20, 1967 - Cronologia Universale","isPartOf":{"@id":"https:\/\/cronologia-universale.it\/#website"},"datePublished":"2026-01-18T22:35:44+00:00","author":{"@id":"https:\/\/cronologia-universale.it\/#\/schema\/person\/f510f53010edc7a70b16caecf1c4af03"},"breadcrumb":{"@id":"https:\/\/cronologia-universale.it\/en\/april-20-1967\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/cronologia-universale.it\/en\/april-20-1967\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/cronologia-universale.it\/en\/april-20-1967\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/cronologia-universale.it\/en\/universal-cronology\/"},{"@type":"ListItem","position":2,"name":"April 20, 1967"}]},{"@type":"WebSite","@id":"https:\/\/cronologia-universale.it\/#website","url":"https:\/\/cronologia-universale.it\/","name":"Cronologia Universale","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/cronologia-universale.it\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/cronologia-universale.it\/#\/schema\/person\/f510f53010edc7a70b16caecf1c4af03","name":"Rick","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/cronologia-universale.it\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/7f707c665808696c8fa12345661bf0ef3aa60982ce3781ec6cc5b16b7b828ba8?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/7f707c665808696c8fa12345661bf0ef3aa60982ce3781ec6cc5b16b7b828ba8?s=96&d=mm&r=g","caption":"Rick"},"sameAs":["http:\/\/cronologia-universale.it"],"url":"https:\/\/cronologia-universale.it\/en\/author\/rick\/"}]}},"_links":{"self":[{"href":"https:\/\/cronologia-universale.it\/en\/wp-json\/wp\/v2\/posts\/626306","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cronologia-universale.it\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cronologia-universale.it\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cronologia-universale.it\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cronologia-universale.it\/en\/wp-json\/wp\/v2\/comments?post=626306"}],"version-history":[{"count":2,"href":"https:\/\/cronologia-universale.it\/en\/wp-json\/wp\/v2\/posts\/626306\/revisions"}],"predecessor-version":[{"id":691433,"href":"https:\/\/cronologia-universale.it\/en\/wp-json\/wp\/v2\/posts\/626306\/revisions\/691433"}],"wp:attachment":[{"href":"https:\/\/cronologia-universale.it\/en\/wp-json\/wp\/v2\/media?parent=626306"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cronologia-universale.it\/en\/wp-json\/wp\/v2\/categories?post=626306"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cronologia-universale.it\/en\/wp-json\/wp\/v2\/tags?post=626306"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}