{"version":"1.0","provider_name":"e-LUMINESCIENCES: the blog of Jean-Pierre Luminet","provider_url":"https:\/\/blogs.futura-sciences.com\/e-luminet","author_name":"Jean-Pierre LUMINET","author_url":"https:\/\/blogs.futura-sciences.com\/e-luminet\/author\/jpluminet\/","title":"Black Hole Imaging Luminet","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"BRQyfVS7U7\"><a href=\"https:\/\/blogs.futura-sciences.com\/e-luminet\/2015\/02\/18\/black-hole-imaging-2-heads-tails\/\">Black Hole Imaging (2) : Heads and Tails<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/blogs.futura-sciences.com\/e-luminet\/2015\/02\/18\/black-hole-imaging-2-heads-tails\/embed\/#?secret=BRQyfVS7U7\" width=\"600\" height=\"338\" title=\"&#8220;Black Hole Imaging (2) : Heads and Tails&#8221; &#8212; e-LUMINESCIENCES: the blog of Jean-Pierre Luminet\" data-secret=\"BRQyfVS7U7\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n<\/script>\n","thumbnail_url":"https:\/\/blogs.futura-sciences.com\/e-luminet\/wp-content\/uploads\/sites\/11\/2015\/02\/cygx1.jpg","thumbnail_width":605,"thumbnail_height":375,"description":"\u00a0The thought experiments which have been described in my\u00a0 previous post Back to the basics are more than an intellectual exercise, because if black holes really exist (and we have strong observational arguments to believe that), then there is a good chance that they will be illuminated by a natural light source. For a black &hellip; Continue reading &rarr;"}