{"id":3150,"date":"2011-06-17T19:47:02","date_gmt":"2011-06-18T03:47:02","guid":{"rendered":"http:\/\/www.generalknowledgetoday.com\/?p=3150"},"modified":"2011-06-17T19:47:02","modified_gmt":"2011-06-18T03:47:02","slug":"explorer-i-the-first-successful-u-s-satellite","status":"publish","type":"post","link":"https:\/\/generalknowledgetoday.com\/?p=3150","title":{"rendered":"Explorer I-The first successful U.S. satellite"},"content":{"rendered":"<p>The first successful U.S. satellite, <em>Explorer I,<\/em> was launched into Earth orbit by the Army on Jan. 31, 1958, at Cape Canaveral, Florida, four months after Russia orbited <strong><em>Sputnik.<\/em><\/strong> The 18-pound satellite had a cylindrical shape and was 80 inches long and six inches in diameter.<\/p>\n<p><em>Explorer I&#8217;s<\/em> small package of instruments produced the first  major discovery of the  Space Age\u2014The Van Allen radiation belts  surrounding the Earth. <em>Explorer I<\/em> burned up in the atmosphere on March 30, 1970.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The first successful U.S. satellite, Explorer I, was launched into Earth orbit by the Army on Jan. 31, 1958, at Cape Canaveral, Florida, four months after Russia orbited Sputnik. The &hellip; <a href=\"https:\/\/generalknowledgetoday.com\/?p=3150\" class=\"more-link\">Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6520,195],"tags":[6518,6519,409,6521,6522,6523,6524],"class_list":["post-3150","post","type-post","status-publish","format-standard","hentry","category-scientific-instruments","category-space-and-astronomy","tag-about-satellites","tag-explorer-i","tag-general-knowledge","tag-space-gk","tag-sputnik","tag-the-first-successful-u-s-satellite","tag-u-s-satellite","entry"],"_links":{"self":[{"href":"https:\/\/generalknowledgetoday.com\/index.php?rest_route=\/wp\/v2\/posts\/3150","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/generalknowledgetoday.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/generalknowledgetoday.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/generalknowledgetoday.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/generalknowledgetoday.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3150"}],"version-history":[{"count":0,"href":"https:\/\/generalknowledgetoday.com\/index.php?rest_route=\/wp\/v2\/posts\/3150\/revisions"}],"wp:attachment":[{"href":"https:\/\/generalknowledgetoday.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3150"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/generalknowledgetoday.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3150"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/generalknowledgetoday.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3150"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}