{"version":1,"type":"rich","provider_name":"Libsyn","provider_url":"https:\/\/www.libsyn.com","height":90,"width":600,"title":"How black holes morphed from theory to reality","description":"Black holes, from theory to reality: Physicists were mostly skeptical when the idea of black holes emerged a century ago from Einstein\u2019s work. This podcast episode tells the story of how the evidence evolved from circumstantial to conclusive. The Knowable Magazine podcast from Annual Reviews explores the limits to what\u2019s knowable \u2014 and how thinking about big questions in science and technology evolve over time. ","author_name":"Knowable","author_url":"https:\/\/knowablemagazine.org","html":"<iframe title=\"Libsyn Player\" style=\"border: none\" src=\"\/\/html5-player.libsyn.com\/embed\/episode\/id\/17510396\/height\/90\/theme\/custom\/thumbnail\/yes\/direction\/forward\/render-playlist\/no\/custom-color\/88AA3C\/\" height=\"90\" width=\"600\" scrolling=\"no\"  allowfullscreen webkitallowfullscreen mozallowfullscreen oallowfullscreen msallowfullscreen><\/iframe>","thumbnail_url":"https:\/\/assets.libsyn.com\/secure\/item\/17510396"}