CINXE.COM

<!DOCTYPE html> <html lang="en"> <head><script type="text/javascript" src="/_static/js/bundle-playback.js?v=HxkREWBo" charset="utf-8"></script> <script type="text/javascript" src="/_static/js/wombat.js?v=txqj7nKC" charset="utf-8"></script> <script>window.RufflePlayer=window.RufflePlayer||{};window.RufflePlayer.config={"autoplay":"on","unmuteOverlay":"hidden"};</script> <script type="text/javascript" src="/_static/js/ruffle/ruffle.js"></script> <script type="text/javascript"> __wm.init("https://web.archive.org/web"); __wm.wombat("http://www.bbc.com:80/earth/story/20170404-the-physics-that-tells-us-what-the-universe-is-made-of","20170804082830","https://web.archive.org/","web","/_static/", "1501835310"); </script> <link rel="stylesheet" type="text/css" href="/_static/css/banner-styles.css?v=S1zqJCYt" /> <link rel="stylesheet" type="text/css" href="/_static/css/iconochive.css?v=3PDvdIFv" />  <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <title>BBC - Earth - The physics that tells us what the Universe is made of</title> <meta name="keywords" content="story, STORY, story, video, physics, , video"> <meta name="description" content="Everything around us is made of atoms, but it turns out that the building blocks of the Universe are far stranger than that"> <meta property="og:title" content="The physics that tells us what the Universe is made of"/> <meta property="og:type" content="article"/> <meta property="og:url" content="https://web.archive.org/web/20170804082830/http://www.bbc.com/earth/story/20170404-the-physics-that-tells-us-what-the-universe-is-made-of"/> <meta property="og:description" content="Everything around us is made of atoms, but it turns out that the building blocks of the Universe are far stranger than that"/> <meta name="twitter:card" content="summary_large_image"> <meta name="twitter:site" content="@BBCEarth"> <meta name="twitter:title" content="The physics that tells us what the Universe is made of"> <meta name="twitter:description" content="Everything around us is made of atoms, but it turns out that the building blocks of the Universe are far stranger than that"> <meta property="og:image" content="https://web.archive.org/web/20170804082830im_/http://ichef.bbci.co.uk/wwfeatures/live/624_351/images/live/p0/4z/0q/p04z0qvq.jpg"/> <meta property="og:image:width" content="624"/> <meta property="og:image:height" content="351"/> <meta name="twitter:image" content="https://web.archive.org/web/20170804082830im_/http://ichef.bbci.co.uk/wwfeatures/live/624_351/images/live/p0/4z/0q/p04z0qvq.jpg"> <script> window.getUriParamByName=function(name) { name = name.replace(/[\[]/, "\\[").replace(/[\]]/, "\\]"); var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"); var results = regex.exec(window.location.search); return (results === null ? "" : decodeURIComponent(results[1].replace(/[^a-zA-Z0-9\-_]/g, ''))); } var digitalData= {"environment":"live","pageInstanceID":"www.bbc.com/earth/story/20170404-the-physics-that-tells-us-what-the-universe-is-made-of","module":{"id":"wwearth","backendModuleId":"wwearth","isGeoRestricted":false,"name":"Earth","domain":"earth","brandColor":"#008e9b","description":"BBC Earth"},"page":{"attributes":{"country":"GB","language":"en-GB"},"pageInfo":{"affiliate":false,"author":"","pageID":"wwearth/story/20170404-the-physics-that-tells-us-what-the-universe-is-made-of","shortPageID":"the-physics-that-tells-us-what-the-universe-is-made-of","pageName":"The physics that tells us what the Universe is made of","description":"Everything around us is made of atoms, but it turns out that the building blocks of the Universe are far stranger than that","partner":false,"publicationDate":"2017-04-05T06:00:02.120533Z","business-unit":"BBC.com","destinationURL":"","bodyTextCharacterLength":432},"keywords":{"pageType":"story","STORY":"1","asset_type":"story","media":"video","tags":["physics"],"destination":[],"column":"video","sectn":"video"},"tags":["story","STORY","story","video",["physics"],[],"video","video"],"category":{"pageType":"story","STORY":"1","asset_type":"story","media":"video","tags":["physics"],"destination":[],"column":"video","sectn":"video","entityFactory":{"entities":{}},"primaryCategory":"earth","section":false,"horizontal":false,"supersection":false}}}; digitalData.page.pageInfo.ocid=getUriParamByName('ocid'); digitalData.page.pageInfo.icid=getUriParamByName('icid'); digitalData.page.pageInfo.referrer=document.referrer; </script> <link rel="stylesheet" type="text/css" href="https://web.archive.org/web/20170804082830cs_/http://www.bbc.com/earth/static/80639ec75e40/css/wwearth/core.css"/> <meta name="viewport" content="width=device-width, initial-scale=1.0"/> <meta property="fb:admins" content="100004154058350"/>  <link rel="stylesheet" href="https://web.archive.org/web/20170804082830cs_/http://static.bbci.co.uk/frameworks/barlesque/3.21.24/orb/4/style/orb.min.css">    <script class="js-require-lib" src="https://web.archive.org/web/20170804082830js_/http://static.bbci.co.uk/frameworks/requirejs/lib.js"></script> <script type="text/javascript"> bbcRequireMap = {"jquery-1":"https://web.archive.org/web/20170804082830/http://static.bbci.co.uk/frameworks/jquery/0.4.1/sharedmodules/jquery-1.7.2", "jquery-1.4":"https://web.archive.org/web/20170804082830/http://static.bbci.co.uk/frameworks/jquery/0.4.1/sharedmodules/jquery-1.4", "jquery-1.9":"https://web.archive.org/web/20170804082830/http://static.bbci.co.uk/frameworks/jquery/0.4.1/sharedmodules/jquery-1.9.1", "jquery-1.12":"https://web.archive.org/web/20170804082830/http://static.bbci.co.uk/frameworks/jquery/0.4.1/sharedmodules/jquery-1.12.0.min", "jquery-2.2":"https://web.archive.org/web/20170804082830/http://static.bbci.co.uk/frameworks/jquery/0.4.1/sharedmodules/jquery-2.2.0.min", "istats-1":"//web.archive.org/web/20170804082830/http://nav.files.bbci.co.uk/nav-analytics/0.1.0-43/js/istats-1", "swfobject-2":"https://web.archive.org/web/20170804082830/http://static.bbci.co.uk/frameworks/swfobject/0.1.10/sharedmodules/swfobject-2", "demi-1":"https://web.archive.org/web/20170804082830/http://static.bbci.co.uk/frameworks/demi/0.10.1/sharedmodules/demi-1", "gelui-1":"https://web.archive.org/web/20170804082830/http://static.bbci.co.uk/frameworks/gelui/0.9.13/sharedmodules/gelui-1", "cssp!gelui-1/overlay":"https://web.archive.org/web/20170804082830/http://static.bbci.co.uk/frameworks/gelui/0.9.13/sharedmodules/gelui-1/overlay.css", "relay-1":"https://web.archive.org/web/20170804082830/http://static.bbci.co.uk/frameworks/relay/0.2.6/sharedmodules/relay-1", "clock-1":"https://web.archive.org/web/20170804082830/http://static.bbci.co.uk/frameworks/clock/0.1.9/sharedmodules/clock-1", "canvas-clock-1":"https://web.archive.org/web/20170804082830/http://static.bbci.co.uk/frameworks/clock/0.1.9/sharedmodules/canvas-clock-1", "cssp!clock-1":"https://web.archive.org/web/20170804082830/http://static.bbci.co.uk/frameworks/clock/0.1.9/sharedmodules/clock-1.css", "jssignals-1":"https://web.archive.org/web/20170804082830/http://static.bbci.co.uk/frameworks/jssignals/0.3.6/modules/jssignals-1", "jcarousel-1":"https://web.archive.org/web/20170804082830/http://static.bbci.co.uk/frameworks/jcarousel/0.1.10/modules/jcarousel-1", "bump-3":"//web.archive.org/web/20170804082830/http://emp.bbci.co.uk/emp/bump-3/bump-3"}; require({ baseUrl: 'https://web.archive.org/web/20170804082830/http://static.bbci.co.uk/', paths: bbcRequireMap, waitSeconds: 30 }); </script> <script type="text/javascript">/*<![CDATA[*/ if (typeof bbccookies_flag === 'undefined') { bbccookies_flag = 'ON'; } showCTA_flag = true; cta_enabled = (showCTA_flag && (bbccookies_flag === 'ON')); (function(){var m="ckns_policy",q="Thu, 01 Jan 1970 00:00:00 GMT",i={ads:true,personalisation:true,performance:true,necessary:true};function c(u){if(c.cache[u]){return c.cache[u]}var t=u.split("/"),v=[""];do{v.unshift((t.join("/")||"/"));t.pop()}while(v[0]!=="/");c.cache[u]=v;return v}c.cache={};function a(u){if(a.cache[u]){return a.cache[u]}var v=u.split("."),t=[];while(v.length&&"|co.uk|com|".indexOf("|"+v.join(".")+"|")===-1){if(v.length){t.push(v.join("."))}v.shift()}c.cache[u]=t;return t}a.cache={};function s(t,y,u){var E=[""].concat(a(window.location.hostname)),B=c(window.location.pathname),D="",w,C;for(var x=0,A=E.length;x<A;x++){w=E[x];for(var v=0,z=B.length;v<z;v++){C=B[v];D=t+"="+y+";"+(w?"domain="+w+";":"")+(C?"path="+C+";":"")+(u?"expires="+u+";":"");bbccookies.set(D,true)}}}window.bbccookies={POLICY_REFRESH_DATE_MILLIS:new Date(2015,4,21,0,0,0,0).getTime(),POLICY_EXPIRY_COOKIENAME:"ckns_policy_exp",_setEverywhere:s,cookiesEnabled:function(){var t="ckns_testcookie"+Math.floor(Math.random()*100000);this.set(t+"=1");if(this.get().indexOf(t)>-1){e(t);return true}return false},get:function(){return document.cookie},getCrumb:function(t){if(!t){return null}return decodeURIComponent(document.cookie.replace(new RegExp("(?:(?:^|.*;)\\s*"+encodeURIComponent(t).replace(/[\-\.\+\*]/g,"\\$&")+"\\s*\\=\\s*([^;]*).*$)|^.*$"),"$1"))||null},policyRequiresRefresh:function(){var u=new Date();u.setHours(0);u.setMinutes(0);u.setSeconds(0);u.setMilliseconds(0);if(bbccookies.POLICY_REFRESH_DATE_MILLIS<=u.getTime()){var t=bbccookies.getCrumb(bbccookies.POLICY_EXPIRY_COOKIENAME);if(t){t=new Date(parseInt(t));t.setYear(t.getFullYear()-1);return bbccookies.POLICY_REFRESH_DATE_MILLIS>=t.getTime()}else{return true}}else{return false}},_setPolicy:function(t){return f.apply(this,arguments)},readPolicy:function(){return l.apply(this,arguments)},_deletePolicy:function(){s(m,"",q)},_isConfirmed:function(){return n()!==null},_acceptsAll:function(){var t=l();return t&&!(j(t).indexOf("0")>-1)},_getCookieName:function(){return b.apply(this,arguments)},_showPrompt:function(){var t=((!this._isConfirmed()||this.policyRequiresRefresh())&&window.cta_enabled&&this.cookiesEnabled()&&!window.bbccookies_disable);return(window.orb&&window.orb.fig)?t&&(window.orb.fig("no")||window.orb.fig("ck")):t},_getPolicy:this.readPolicy};function b(u){var t=(""+u).match(/^([^=]+)(?==)/);return(t&&t.length?t[0]:"")}function j(t){return""+(t.ads?1:0)+(t.personalisation?1:0)+(t.performance?1:0)}function f(x){if(typeof x==="undefined"){x=i}if(typeof arguments[0]==="string"){var u=arguments[0],w=arguments[1];if(u==="necessary"){w=true}x=l();x[u]=w}else{if(typeof arguments[0]==="object"){x.necessary=true}}var v=new Date();v.setYear(v.getFullYear()+1);bbccookies.set(m+"="+j(x)+";domain=bbc.co.uk;path=/;expires="+v.toUTCString()+";");bbccookies.set(m+"="+j(x)+";domain=bbc.com;path=/;expires="+v.toUTCString()+";");bbccookies.set(m+"="+j(x)+";domain=bbci.co.uk;path=/;expires="+v.toUTCString()+";");var t=new Date(v.getTime());t.setMonth(t.getMonth()+1);bbccookies.set(bbccookies.POLICY_EXPIRY_COOKIENAME+"="+v.getTime()+";domain=bbc.co.uk;path=/;expires="+t.toUTCString()+";");bbccookies.set(bbccookies.POLICY_EXPIRY_COOKIENAME+"="+v.getTime()+";domain=bbc.com;path=/;expires="+t.toUTCString()+";");bbccookies.set(bbccookies.POLICY_EXPIRY_COOKIENAME+"="+v.getTime()+";domain=bbci.co.uk;path=/;expires="+t.toUTCString()+";");return x}function o(t){if(t===null){return null}var u=t.split("");return{ads:!!+u[0],personalisation:!!+u[1],performance:!!+u[2],necessary:true}}function n(){var t=new RegExp("(?:^|; ?)"+m+"=(\\d\\d\\d)($|;)"),u=document.cookie.match(t);if(!u){return null}return u[1]}function l(t){var u=o(n());if(!u){u=i}if(t){return u[t]}else{return u}}function e(t){return document.cookie=t+"=;expires="+q+";"}var g=!(window.bbccookies_flag==="ON"&&!bbccookies._acceptsAll()&&!window.bbccookies_disable);var k={},d={"personalisation":"ckps_.+|X-AB-iplayer-.+|ACTVTYMKR|BBC_EXAMPLE_COOKIE|BBCIplayer|BBCiPlayerM|BBCIplayerSession|BBCMediaselector|BBCPostcoder|bbctravel|CGISESSID|ed|food-view|forceDesktop|h4|IMRID|locserv|MyLang|myloc|NTABS|ttduserPrefs|V5|WEATHER|BBCScienceDiscoveryPlaylist_.+|bitratePref|correctAnswerCount|genreCookie|highestQuestionScore|incorrectAnswerCount|longestStreak|MSCSProfile|programmes-oap-expanded|quickestAnswer|score|servicePanel|slowestAnswer|totalTimeForAllFormatted|v|BBCwords|score|correctAnswerCount|highestQuestionScore|hploc|BGUID|BBCWEACITY|mstouch|myway|BBCNewsCustomisation|cbbc_anim|cbeebies_snd|bbcsr_usersx|cbeebies_rd|BBC-Latest_Blogs|zh-enc|pref_loc|m|bbcEmp.+|recs-.+|_lvd2|_lvs2|tick|_fcap_CAM1|_rcc2","performance":"ckpf_.+|optimizely.*|BBCLiveStatsClick|id|_em_.+|cookies_enabled|mbox|mbox-admin|mc_.+|omniture_unique|s_.+|sc_.+|adpolicyAdDisplayFrequency|s1|ns_session|ns_cookietest|ns_ux|NO-SA|tr_pr1|gvsurvey|bbcsurvey|si_v|sa_labels|obuid|mm_.+|mmid|mmcore.+|mmpa.+","ads":"ckad_.+|rsi_segs|c","necessary":"ckns_.+|BBC-UID|blq\\.dPref|SSO2-UID|BBC-H2-User|rmRpDetectReal|bbcComSurvey|IDENTITY_ENV|IDENTITY|IDENTITY-HTTPS|IDENTITY_SESSION|BBCCOMMENTSMODULESESSID|bbcBump.+|IVOTE_VOTE_HISTORY|pulse|BBCPG|BBCPGstat|ecos\\.dt"};function r(){var x=document.cookie.replace(/; +/g,";").split(";"),u,v=[];for(var w=0,t=x.length;w<t;w++){u=x[w];v.push(bbccookies._getCookieName(u))}return v}function h(w){var v=JSON.stringify(w);if(typeof(k[v])!=="undefined"){return k[v]}var u="";for(var t in w){if(w.hasOwnProperty(t)&&d[t]){if(w[t]===true){u+=(u?"|":"")+d[t]}}}k[v]=new RegExp("^("+(u?u:".*")+")$","i");return k[v]}bbccookies.getPolicyExpiryDateTime=function(){return bbccookies.POLICY_EXPIRY_COOKIENAME};bbccookies.purge=function(){var u=bbccookies.readPolicy(),w=r(),x;for(var v=0,t=w.length;v<t;v++){if(!bbccookies.isAllowed(w[v],u)){x=new Date();x.setTime(0);x=x.toUTCString();s(w[v],"deleted",x)}}};function p(){if(g){return}bbccookies.purge();contentLoaded(window,bbccookies.purge);if(window.addEventListener){window.addEventListener("beforeunload",bbccookies.purge,false)}else{if(window.attachEvent){window.attachEvent("onbeforeunload",bbccookies.purge)}else{window.onbeforeunload=bbccookies.purge}}}bbccookies.set=function(u,t){if(g){return document.cookie=u}var v=bbccookies._getCookieName(u);if(t||bbccookies.isAllowed(v)){return document.cookie=u}return null};bbccookies.isAllowed=function(v){var u=bbccookies.readPolicy();var t=h(u);return t.test(v)};p()})(); /*! * contentloaded.js * * Author: Diego Perini (diego.perini at gmail.com) * Summary: cross-browser wrapper for DOMContentLoaded * Updated: 20101020 * License: MIT * Version: 1.2 * * URL: * http://javascript.nwbox.com/ContentLoaded/ * http://javascript.nwbox.com/ContentLoaded/MIT-LICENSE * */ function contentLoaded(d,i){var c=false,h=true,k=d.document,j=k.documentElement,a=k.addEventListener,n=a?"addEventListener":"attachEvent",l=a?"removeEventListener":"detachEvent",b=a?"":"on",m=function(o){if(o.type==="readystatechange"&&k.readyState!="complete"){return}(o.type==="load"?d:k)[l](b+o.type,m,false);if(!c&&(c=true)){i.call(d,o.type||o)}},g=function(){try{j.doScroll("left")}catch(o){setTimeout(g,50);return}m("poll")};if(k.readyState==="complete"){i.call(d,"lazy")}else{if(!a&&j.doScroll){try{h=!d.frameElement}catch(f){}if(h){g()}}k[n](b+"DOMContentLoaded",m,false);k[n](b+"readystatechange",m,false);d[n](b+"load",m,false)}}if(typeof(require)==="function"&&!require.defined("orb/cookies")){define("orb/cookies",window.bbccookies)}; /*]]>*/</script> <script type="text/javascript">/*<![CDATA[*/ (function(){window.orb={};window.orb.figState={ad:0,ap:0,ck:1,eu:1,mb:0,tb:0,uk:1,df:1};window.orb.fig=function(a){return(arguments.length)?window.orb.figState[a]:window.orb.figState};window.orb.fig.device={};window.orb.fig.geo={};window.orb.fig.user={};window.orb.fig.isDefault=function(){return window.orb.fig("df")};window.orb.fig.device.isTablet=function(){return window.orb.fig("tb")};window.orb.fig.device.isMobile=function(){return window.orb.fig("mb")};window.orb.fig.geo.isUK=function(){return window.orb.fig("uk")};window.orb.fig.geo.isEU=function(){return window.orb.fig("eu")};window.fig=window.fig||{};window.fig.manager={include:function(e){e=e||window;var g=false;var j=e.document,k=j.cookie,i=k.match(/(?:^|; ?)ckns_orb_fig=([^;]+)/),h;if(i){i=this.deserialise(decodeURIComponent(RegExp.$1));this.setFig(e,i)}if(window.fig.async&&typeof JSON!="undefined"){var b=(document.cookie.match("(^|; )ckns_orb_cachedfig=([^;]*)")||0)[2];h=b?JSON.parse(b):null;if(h){this.setFig(e,h);g=true}}var a="https://web.archive.org/web/20170804082830/https://fig.bbc.co.uk/frameworks/fig/1/fig.js";if(g){j.write('<script src="'+a+'" async><'+"/script>")}else{j.write('<script src="'+a+'"><'+"/script>")}},confirm:function(a){return true},setFig:function(a,b){(function(){a.orb=a.orb||{};a.orb.figState=b})()},deserialise:function(b){var a={};b.replace(/([a-z]{2}):([0-9]+)/g,function(){a[RegExp.$1]=+RegExp.$2});return a}}})();fig.manager.include();/*]]>*/</script>  <script type="text/javascript">window.bbcFlagpoles_istats="ON",require.config({paths:{"istats-1":"//web.archive.org/web/20170804082830/http://nav.files.bbci.co.uk/nav-analytics/0.1.0-72/js/istats-1","megavolt-client":"//web.archive.org/web/20170804082830/http://nav.files.bbci.co.uk/nav-analytics/0.1.0-72/js/megavolt-client"}}),require.defined("orb/cookies")||(window.bbccookies?define("orb/cookies",function(){return window.bbccookies}):define("orb/cookies",function(){return{isAllowed:function(e){return!1}}})),require(["megavolt-client","istats-1","orb/cookies"],function(e,t,o){if(o.isAllowed("s1")){e.setMegavoltUrl("https://web.archive.org/web/20170804082830/https://mvt.api.bbc.com");e.setMegavoltTimeout("1000");t.addCollector({name:"default",url:"https://web.archive.org/web/20170804082830/https://sa.bbc.co.uk/bbc/bbc/s",separator:"&"});var i="earth.story.20170404-the-physics-that-tells-us-what-the-universe-is-made-of.page";t.setCountername(i),window.istats_countername&&t.setCountername(window.istats_countername),t.addLabels("ml_name=webmodule&ml_version=72")}});</script> <script type="text/javascript">/*<![CDATA[*/ window.bbcFlagpoles_istats = 'ON'; window.orb = window.orb || {}; if (typeof bbccookies !== 'undefined' && bbccookies.isAllowed('s1')) { var istatsTrackingUrl = '//web.archive.org/web/20170804082830/http://sa.bbc.co.uk/bbc/bbc/s?name=earth.story.20170404-the-physics-that-tells-us-what-the-universe-is-made-of.page&pal_route=webserviceapi&app_type=responsive&language=en-GB&pal_webapp=barlesque&prod_name=frameworks&app_name=frameworks'; require(['istats-1'], function (istats) { var counterName = (window.istats_countername) ? window.istats_countername : istatsTrackingUrl.match(/[\?&]name=([^&]*)/i)[1]; istats.setCountername(counterName); istats.addLabels('pal_route=webserviceapi&app_type=responsive&language=en-GB&pal_webapp=barlesque&prod_name=frameworks&app_name=frameworks'); var c = (document.cookie.match(/\bckns_policy=(\d\d\d)/) || []).pop() || ''; istats.addLabels({ 'blq_s': '4d', 'blq_r': '2.7', 'blq_v': 'default', 'blq_e': 'pal', 'bbc_mc': (c ? 'ad' + c.charAt(0) + 'ps' + c.charAt(1) + 'pf' + c.charAt(2) : 'not_set') } ); }); } /*]]>*/</script> <script type="text/javascript">/*<![CDATA[*/ (function(undefined){if(!window.bbc){window.bbc={}}var ROLLING_PERIOD_DAYS=30;window.bbc.Mandolin=function(id,segments,opts){var now=new Date().getTime(),storedItem,DEFAULT_START=now,DEFAULT_RATE=1,COOKIE_NAME="ckpf_mandolin";opts=opts||{};this._id=id;this._segmentSet=segments;this._store=new window.window.bbc.Mandolin.Storage(COOKIE_NAME);this._opts=opts;this._rate=(opts.rate!==undefined)?+opts.rate:DEFAULT_RATE;this._startTs=(opts.start!==undefined)?new Date(opts.start).getTime():new Date(DEFAULT_START).getTime();this._endTs=(opts.end!==undefined)?new Date(opts.end).getTime():daysFromNow(ROLLING_PERIOD_DAYS);this._signupEndTs=(opts.signupEnd!==undefined)?new Date(opts.signupEnd).getTime():this._endTs;this._segment=null;if(typeof id!=="string"){throw new Error("Invalid Argument: id must be defined and be a string")}if(Object.prototype.toString.call(segments)!=="[object Array]"){throw new Error("Invalid Argument: Segments are required.")}if(opts.rate!==undefined&&(opts.rate<0||opts.rate>1)){throw new Error("Invalid Argument: Rate must be between 0 and 1.")}if(this._startTs>this._endTs){throw new Error("Invalid Argument: end date must occur after start date.")}if(!(this._startTs<this._signupEndTs&&this._signupEndTs<=this._endTs)){throw new Error("Invalid Argument: SignupEnd must be between start and end date")}removeExpired.call(this,now);var overrides=window.bbccookies.get().match(/ckns_mandolin_setSegments=([^;]+)/);if(overrides!==null){eval("overrides = "+decodeURIComponent(RegExp.$1)+";");if(overrides[this._id]&&this._segmentSet.indexOf(overrides[this._id])==-1){throw new Error("Invalid Override: overridden segment should exist in segments array")}}if(overrides!==null&&overrides[this._id]){this._segment=overrides[this._id]}else{if((storedItem=this._store.getItem(this._id))){this._segment=storedItem.segment}else{if(this._startTs<=now&&now<this._signupEndTs&&now<=this._endTs&&this._store.isEnabled()===true){this._segment=pick(segments,this._rate);if(opts.end===undefined){this._store.setItem(this._id,{segment:this._segment})}else{this._store.setItem(this._id,{segment:this._segment,end:this._endTs})}log.call(this,"mandolin_segment")}}}log.call(this,"mandolin_view")};window.bbc.Mandolin.prototype.getSegment=function(){return this._segment};function log(actionType,params){var that=this;require(["istats-1"],function(istats){istats.log(actionType,that._id+":"+that._segment,params?params:{})})}function removeExpired(expires){var items=this._store.getItems(),expiresInt=+expires;for(var key in items){if(items[key].end!==undefined&&+items[key].end<expiresInt){this._store.removeItem(key)}}}function getLastExpirationDate(data){var winner=0,rollingExpire=daysFromNow(ROLLING_PERIOD_DAYS);for(var key in data){if(data[key].end===undefined&&rollingExpire>winner){winner=rollingExpire}else{if(+data[key].end>winner){winner=+data[key].end}}}return(winner)?new Date(winner):new Date(rollingExpire)}window.bbc.Mandolin.prototype.log=function(params){log.call(this,"mandolin_log",params)};window.bbc.Mandolin.prototype.convert=function(params){log.call(this,"mandolin_convert",params);this.convert=function(){}};function daysFromNow(n){var endDate;endDate=new Date().getTime()+(n*60*60*24)*1000;return endDate}function pick(segments,rate){var picked,min=0,max=segments.length-1;if(typeof rate==="number"&&Math.random()>rate){return null}do{picked=Math.floor(Math.random()*(max-min+1))+min}while(picked>max);return segments[picked]}window.bbc.Mandolin.Storage=function(name){validateCookieName(name);this._cookieName=name;this._isEnabled=(bbccookies.isAllowed(this._cookieName)===true&&bbccookies.cookiesEnabled()===true)};window.bbc.Mandolin.Storage.prototype.setItem=function(key,value){var storeData=this.getItems();storeData[key]=value;this.save(storeData);return value};window.bbc.Mandolin.Storage.prototype.isEnabled=function(){return this._isEnabled};window.bbc.Mandolin.Storage.prototype.getItem=function(key){var storeData=this.getItems();return storeData[key]};window.bbc.Mandolin.Storage.prototype.removeItem=function(key){var storeData=this.getItems();delete storeData[key];this.save(storeData)};window.bbc.Mandolin.Storage.prototype.getItems=function(){return deserialise(this.readCookie(this._cookieName)||"")};window.bbc.Mandolin.Storage.prototype.save=function(data){window.bbccookies.set(this._cookieName+"="+encodeURIComponent(serialise(data))+"; expires="+getLastExpirationDate(data).toUTCString()+";")};window.bbc.Mandolin.Storage.prototype.readCookie=function(name){var nameEq=name+"=",ca=window.bbccookies.get().split("; "),i,c;validateCookieName(name);for(i=0;i<ca.length;i++){c=ca[i];if(c.indexOf(nameEq)===0){return decodeURIComponent(c.substring(nameEq.length,c.length))}}return null};function serialise(o){var str="";for(var p in o){if(o.hasOwnProperty(p)){str+='"'+p+'"'+":"+(typeof o[p]==="object"?(o[p]===null?"null":"{"+serialise(o[p])+"}"):'"'+o[p].toString()+'"')+","}}return str.replace(/,\}/g,"}").replace(/,$/g,"")}function deserialise(str){var o;str="{"+str+"}";if(!validateSerialisation(str)){throw"Invalid input provided for deserialisation."}eval("o = "+str);return o}var validateSerialisation=(function(){var OBJECT_TOKEN="<Object>",ESCAPED_CHAR='"\\n\\r\\u2028\\u2029\\u000A\\u000D\\u005C',ALLOWED_CHAR="([^"+ESCAPED_CHAR+"]|\\\\["+ESCAPED_CHAR+"])",KEY='"'+ALLOWED_CHAR+'+"',VALUE='(null|"'+ALLOWED_CHAR+'*"|'+OBJECT_TOKEN+")",KEY_VALUE=KEY+":"+VALUE,KEY_VALUE_SEQUENCE="("+KEY_VALUE+",)*"+KEY_VALUE,OBJECT_LITERAL="({}|{"+KEY_VALUE_SEQUENCE+"})",objectPattern=new RegExp(OBJECT_LITERAL,"g");return function(str){if(str.indexOf(OBJECT_TOKEN)!==-1){return false}while(str.match(objectPattern)){str=str.replace(objectPattern,OBJECT_TOKEN)}return str===OBJECT_TOKEN}})();function validateCookieName(name){if(name.match(/ ,;/)){throw"Illegal name provided, must be valid in browser cookie."}}})(); /*]]>*/</script> <script type="text/javascript"> document.documentElement.className += (document.documentElement.className? ' ' : '') + 'orb-js'; fig.manager.confirm(); </script> <script src="https://web.archive.org/web/20170804082830js_/http://static.bbci.co.uk/frameworks/barlesque/3.21.24/orb/4/script/orb/api.min.js"></script> <script src="https://web.archive.org/web/20170804082830js_/http://static.bbci.co.uk/frameworks/barlesque/3.21.24/orb/4/script/orb/font.min.js"></script> <script type="text/javascript"> var blq = { environment: function() { return 'live'; } } </script> <script type="text/javascript"> /*<![CDATA[*/ function oqsSurveyManager(w, flag) { if (flag !== 'OFF' && (w.orb.fig("no") || w.orb.fig("uk"))) { w.document.write('<script type="text/javascript" src="https://web.archive.org/web/20170804082830/http://static.bbci.co.uk/frameworks/barlesque/3.21.24/orb/4/script/vendor/edr.min.js"><'+'/script>'); } } oqsSurveyManager(window, 'ON'); /*]]>*/ </script>  <script type="text/javascript"> /*<![CDATA[*/ var _sf_startpt = (new Date()).getTime(); /*]]>*/ </script><style type="text/css">.bbccom_display_none{display:none;}</style><script type="text/javascript"> /*<![CDATA[*/ var bbcdotcomConfig, googletag = googletag || {}; googletag.cmd = googletag.cmd || []; var bbcdotcom = false; (function(){ if(typeof require !== 'undefined') { require({ paths:{ "bbcdotcom":"https://web.archive.org/web/20170804082830/http://static.bbci.co.uk/bbcdotcom/1.61.0/script" } }); } })(); /*]]>*/ </script><script type="text/javascript"> /*<![CDATA[*/ var bbcdotcom = { adverts: { keyValues: { set: function() {} } }, advert: { write: function () {}, show: function () {}, isActive: function () { return false; }, layout: function() { return { reset: function() {} } } }, config: { init: function() {}, isActive: function() {}, setSections: function() {}, isAdsEnabled: function() {}, setAdsEnabled: function() {}, isAnalyticsEnabled: function() {}, setAnalyticsEnabled: function() {}, setAssetPrefix: function() {}, setVersion: function () {}, setJsPrefix: function() {}, setSwfPrefix: function() {}, setCssPrefix: function() {}, setConfig: function() {}, getAssetPrefix: function() {}, getJsPrefix: function () {}, getSwfPrefix: function () {}, getCssPrefix: function () {} }, survey: { init: function(){ return false; } }, data: {}, init: function() {}, objects: function(str) { return false; }, locale: { set: function() {}, get: function() {} }, setAdKeyValue: function() {}, utils: { addEvent: function() {}, addHtmlTagClass: function() {}, log: function () {} }, addLoadEvent: function() {} }; /*]]>*/ </script><script type="text/javascript"> /*<![CDATA[*/ (function(){ if (typeof orb !== 'undefined' && typeof orb.fig === 'function') { if (orb.fig('ad') && orb.fig('uk') == 0) { bbcdotcom.data = { ads: (orb.fig('ad') ? 1 : 0), stats: (orb.fig('uk') == 0 ? 1 : 0), statsProvider: orb.fig('ap') }; } } else { document.write('<script type="text/javascript" src="'+('https:' == document.location.protocol ? 'https://web.archive.org/web/20170804082830/https://www.bbc.com' : 'https://web.archive.org/web/20170804082830/http://tps.bbc.com')+'/wwscripts/data">\x3C/script>'); } })(); /*]]>*/ </script><script type="text/javascript"> /*<![CDATA[*/ (function(){ if (typeof orb === 'undefined' || typeof orb.fig !== 'function') { bbcdotcom.data = { ads: bbcdotcom.data.a, stats: bbcdotcom.data.b, statsProvider: bbcdotcom.data.c }; } if (bbcdotcom.data.ads == 1) { document.write('<script type="text/javascript" src="'+('https:' == document.location.protocol ? 'https://web.archive.org/web/20170804082830/https://www.bbc.co.uk' : 'https://web.archive.org/web/20170804082830/http://www.bbc.co.uk')+'/wwscripts/flag">\x3C/script>'); } })(); /*]]>*/ </script><script type="text/javascript"> /*<![CDATA[*/ (function(){ if (window.bbcdotcom && (typeof bbcdotcom.flag == 'undefined' || (typeof bbcdotcom.data.ads !== 'undefined' && bbcdotcom.flag.a != 1))) { bbcdotcom.data.ads = 0; } if (/[?|&]ads/.test(window.location.href) || /(^|; )ads=on; /.test(document.cookie) || /; ads=on(; |$)/.test(document.cookie)) { bbcdotcom.data.ads = 1; bbcdotcom.data.stats = 1; } if (window.bbcdotcom && (bbcdotcom.data.ads == 1 || bbcdotcom.data.stats == 1)) { bbcdotcom.assetPrefix = "https://web.archive.org/web/20170804082830/http://static.bbci.co.uk/bbcdotcom/1.61.0/"; if (/(sandbox|int)(.dev)*.bbc.co*/.test(window.location.href) || /[?|&]ads-debug/.test(window.location.href) || document.cookie.indexOf('ads-debug=') !== -1) { document.write('<link rel="stylesheet" type="text/css" href="https://web.archive.org/web/20170804082830/http://static.bbci.co.uk/bbcdotcom/1.61.0/style/dist/bbcdotcom.dev.css" />'); } else { document.write('<link rel="stylesheet" type="text/css" href="https://web.archive.org/web/20170804082830/http://static.bbci.co.uk/bbcdotcom/1.61.0/style/dist/bbcdotcom.css" />'); } (function() { var useSSL = 'https:' == document.location.protocol; var src = (useSSL ? 'https:' : 'http:') + '//web.archive.org/web/20170804082830/http://www.googletagservices.com/tag/js/gpt.js'; document.write('<scr' + 'ipt src="' + src + '">\x3C/script>'); })(); if (/(sandbox|int)(.dev)*.bbc.co*/.test(window.location.href) || /[?|&]ads-debug/.test(window.location.href) || document.cookie.indexOf('ads-debug=') !== -1) { document.write('<script type="text/javascript" src="https://web.archive.org/web/20170804082830/http://static.bbci.co.uk/bbcdotcom/1.61.0/script/dist/bbcdotcom.dev.js">\x3C/script>'); } else { document.write('<script type="text/javascript" src="https://web.archive.org/web/20170804082830/http://static.bbci.co.uk/bbcdotcom/1.61.0/script/dist/bbcdotcom.js">\x3C/script>'); } } })(); /*]]>*/ </script><script type="text/javascript"> if (window.bbcdotcom && bbcdotcom.data.stats == 1) { document.write('<link rel="dns-prefetch" href="//web.archive.org/web/20170804082830/http://secure-us.imrworldwide.com/">'); document.write('<link rel="dns-prefetch" href="//web.archive.org/web/20170804082830/http://me-cdn.effectivemeasure.net/">'); document.write('<link rel="dns-prefetch" href="//web.archive.org/web/20170804082830/http://ssc.api.bbc.com/">'); } if (window.bbcdotcom && bbcdotcom.data.ads == 1) { document.write('<link rel="dns-prefetch" href="//web.archive.org/web/20170804082830/http://www.googletagservices.com/">'); } </script><script type="text/javascript"> /*<![CDATA[*/ (function(){ if (window.bbcdotcom && (bbcdotcom.data.ads == 1 || bbcdotcom.data.stats == 1)) { bbcdotcomConfig = {"adFormat":"standard","adKeyword":"","adMode":"smart","adsEnabled":true,"appAnalyticsSections":"","asyncEnabled":false,"disableInitialLoad":false,"advertInfoPageUrl":"https:\/\/web.archive.org\/web\/20170804082830\/http:\/\/www.bbc.com\/privacy\/cookies\/international\/","advertisementText":"Advertisement","analyticsEnabled":true,"appName":"barlesque","assetPrefix":"https:\/\/web.archive.org\/web\/20170804082830\/http:\/\/static.bbci.co.uk\/bbcdotcom\/1.61.0\/","customAdParams":[],"customStatsParams":[],"headline":"","id":"","inAssociationWithText":"in association with","keywords":"","language":"","orbTransitional":false,"outbrainEnabled":true,"adsenseEnabled":true,"adsportappEnabled":true,"palEnv":"live","productName":"","sections":[],"comScoreEnabled":true,"comscoreSite":"bbc","comscoreID":"19293874","comscorePageName":"","slots":"","sponsoredByText":"is sponsored by","adsByGoogleText":"Ads by Google","summary":"","type":"","features":{"testfeature":{"name":"testfeature","envs":["sandbox","int","test"],"on":true,"options":{},"override":null},"lxadverts":{"name":"lxadverts","envs":[],"on":true,"options":{},"override":null}},"staticBase":"\/bbcdotcom","staticHost":"https:\/\/web.archive.org\/web\/20170804082830\/http:\/\/static.bbci.co.uk","staticVersion":"1.61.0","staticPrefix":"https:\/\/web.archive.org\/web\/20170804082830\/http:\/\/static.bbci.co.uk\/bbcdotcom\/1.61.0","dataHttp":"tps.bbc.com","dataHttps":"www.bbc.com","flagHttp":"www.bbc.co.uk","flagHttps":"www.bbc.co.uk","analyticsHttp":"sa.bbc.com","analyticsHttps":"ssa.bbc.com"}; bbcdotcom.config.init(bbcdotcomConfig, bbcdotcom.data, window.location, window.document); bbcdotcom.config.setAssetPrefix("https://web.archive.org/web/20170804082830/http://static.bbci.co.uk/bbcdotcom/1.61.0/"); bbcdotcom.config.setVersion("1.61.0"); document.write(''); document.write(''); document.write(''); if (/[?|&]ex-dp/.test(window.location.href) || document.cookie.indexOf('ex-dp=') !== -1) { bbcdotcom.utils.addHtmlTagClass('bbcdotcom-ex-dp'); } } })(); /*]]>*/ </script><script type="text/javascript"> /*<![CDATA[*/ (function() { window.bbcdotcom.head = true; }()); /*]]>*/ </script>  <script type="text/javascript"> // Globally available search context window.SEARCHBOX={"variant":"default","locale":"en","navSearchboxStaticPrefix":"//web.archive.org/web/20170804082830/http://nav.files.bbci.co.uk/searchbox/1.0.0-129","searchboxAppStaticPrefix":"//web.archive.org/web/20170804082830/http://search.files.bbci.co.uk/searchbox-app/1.0.16","searchFormHtml":"<div tabindex=\"-1\" data-reactid=\".2fvssx2jgg\" data-react-checksum=\"1923032532\"><div data-reactid=\".2fvssx2jgg.0\"><section class=\"se-searchbox-panel\" data-reactid=\".2fvssx2jgg.0.0\"><div class=\"se-g-wrap\" data-reactid=\".2fvssx2jgg.0.0.0\"><div class=\"se-g-layout\" data-reactid=\".2fvssx2jgg.0.0.0.0\"><div class=\"se-g-layout__item se-searchbox-title\" aria-hidden=\"true\" data-reactid=\".2fvssx2jgg.0.0.0.0.0\">search</div><div class=\"se-g-layout__item se-searchbox\" data-reactid=\".2fvssx2jgg.0.0.0.0.1\"><form accept-charset=\"utf-8\" id=\"searchboxDrawerForm\" method=\"get\" action=\"//search.bbc.co.uk/search\" data-reactid=\".2fvssx2jgg.0.0.0.0.1.0\"><label class=\"se-searchbox__input\" for=\"se-searchbox-input-field\" data-reactid=\".2fvssx2jgg.0.0.0.0.1.0.0\"><span class=\"se-sr-only\" data-reactid=\".2fvssx2jgg.0.0.0.0.1.0.0.0\">Search Term</span><input name=\"q\" type=\"text\" value=\"\" id=\"se-searchbox-input-field\" class=\"se-searchbox__input__field\" maxlength=\"512\" autocomplete=\"off\" autocorrect=\"off\" autocapitalize=\"off\" spellcheck=\"false\" tabindex=\"0\" data-reactid=\".2fvssx2jgg.0.0.0.0.1.0.0.1\"/></label><input type=\"hidden\" name=\"scope\" value=\"\" data-reactid=\".2fvssx2jgg.0.0.0.0.1.0.2\"/><button type=\"submit\" class=\"se-searchbox__submit\" tabindex=\"0\" data-reactid=\".2fvssx2jgg.0.0.0.0.1.0.3\">Search</button><button type=\"button\" class=\"se-searchbox__clear se-searchbox__clear--visible\" tabindex=\"0\" data-reactid=\".2fvssx2jgg.0.0.0.0.1.0.4\">Close</button></form></div></div></div></section><div aria-live=\"polite\" aria-atomic=\"true\" class=\"se-suggestions-container\" data-reactid=\".2fvssx2jgg.0.1\"><section class=\"se-g-wrap\" data-reactid=\".2fvssx2jgg.0.1.0\"></section></div></div></div>","searchScopePlaceholder":"","searchScopeParam":"","searchScopeTemplate":"","searchPlaceholderWrapperStart":"","searchPlaceholderWrapperEnd":""}; window.SEARCHBOX.suppress = false; window.SEARCHBOX.searchScope = SEARCHBOX.searchScopeTemplate.split('-')[0]; </script> <link rel="stylesheet" href="//web.archive.org/web/20170804082830cs_/http://nav.files.bbci.co.uk/searchbox/1.0.0-129/css/main.css">    <link rel="stylesheet" href="//web.archive.org/web/20170804082830cs_/http://static.bbc.co.uk/id/0.37.24/style/id-cta.css"/> <link rel="stylesheet" href="//web.archive.org/web/20170804082830cs_/http://static.bbc.co.uk/id/0.37.24/style/id-cta-v5.css"/>  <script type="text/javascript"> /* <![CDATA[ */ var map = {}; if (typeof(map['jssignals-1']) == 'undefined') { map['jssignals-1'] = 'https://web.archive.org/web/20170804082830/https://static.bbc.co.uk/frameworks/jssignals/0.3.6/modules/jssignals-1'; } require({paths: map}); /* ]]> */ </script> <script src="//web.archive.org/web/20170804082830js_/http://static.bbc.co.uk/id/0.37.24/modules/idcta/dist/idcta-1.min.js"></script> <script type="text/javascript"> (function () { if (!window.require) { throw new Error('idcta: could not find require module'); } if(typeof(map) == 'undefined') { var map = {}; } if(!!document.createElementNS && !!document.createElementNS('http://www.w3.org/2000/svg', "svg").createSVGRect) { document.documentElement.className += ' id-svg'; } var ptrt = RegExp("[\\?&]ptrt=([^&#]*)").exec(document.location.href); var ENDPOINT_URL = '//' + ((window.location.protocol == "https:") ? ('ssl.bbc.co.uk').replace("www.", "ssl.") : ('ssl.bbc.co.uk').replace("ssl.", "www.")); var ENDPOINT_CONFIG = ('/idcta/config?callback&locale=en-GB&ptrt=' + encodeURI((ptrt ? ptrt[1] : document.location.href))).replace(/\&/g, '&'); var ENDPOINT_TRANSLATIONS = '/idcta/translations?callback&locale=en-GB'; map['idapp-1'] = '//web.archive.org/web/20170804082830/http://static.bbc.co.uk/idapp/0.72.58/modules/idapp/idapp-1'; map['idcta'] = '//web.archive.org/web/20170804082830/http://static.bbc.co.uk/id/0.37.24/modules/idcta'; map['idcta/config'] = [ENDPOINT_URL + ENDPOINT_CONFIG, '//web.archive.org/web/20170804082830/http://static.bbc.co.uk/id/0.37.24/modules/idcta/fallbackConfig']; map['idcta/translations'] = [ENDPOINT_URL + ENDPOINT_TRANSLATIONS, '//web.archive.org/web/20170804082830/http://static.bbc.co.uk/id/0.37.24/modules/idcta/fallbackTranslations']; require({paths: map}); /* * Temporary code * To be removed when old id-statusbar-config is no longer supported */ define('id-statusbar-config', ['idcta/id-config'], function(conf) { return conf; }); define('idcta/id-statusbar-config', ['idcta/id-config'], function(conf) { return conf; }); })(); </script> <link rel="stylesheet" href="//web.archive.org/web/20170804082830cs_/http://mybbc.files.bbci.co.uk/notification-ui/3.8.1/css/main.min.css"/>  <script> var isIE8=false, _config={"version":"rc43","adpolicy":{"ad-display-frequency":180},"weather_api":{"url":"https://web.archive.org/web/20170804082830/http://open.live.bbc.co.uk","full_forecast_url":"https://web.archive.org/web/20170804082830/http://www.bbc.co.uk/weather/"},"bbc":{"ps":{"url":"https://web.archive.org/web/20170804082830/http://www.bbc.co.uk"},"ww":{"url":"https://web.archive.org/web/20170804082830/http://www.bbc.com"}},"domain":"www.bbc.com","images":{"default":{"url":"https://web.archive.org/web/20170804082830/http://ichef.bbci.co.uk/wwfeatures/$recipe/images/live/p0/2g/t3/p02gt3v6.jpg","title":"BBC Earth Default Placeholder","URL":"https://web.archive.org/web/20170804082830/http://ichef.bbci.co.uk/wwfeatures/$recipe/images/live/p0/30/k9/p030k9by.jpg"},"capital-external-promotion":{"URL":"https://web.archive.org/web/20170804082830/http://ichef.bbci.co.uk/wwfeatures/$recipe//images/live/p0/2y/vw/p02yvwtm.jpg","title":"BBC Capital External Link"},"autos-external-promotion":{"URL":"https://web.archive.org/web/20170804082830/http://ichef.bbci.co.uk/wwfeatures/$recipe/images/live/p0/2y/vx/p02yvx7t.jpg","title":"BBC Autos External Link"},"culture-external-promotion":{"URL":"https://web.archive.org/web/20170804082830/http://ichef.bbci.co.uk/wwfeatures/$recipe/images/live/p0/2v/0x/p02v0x03.jpg","title":"BBC Culture External Link"},"earth-external-promotion":{"URL":"https://web.archive.org/web/20170804082830/http://ichef.bbci.co.uk/wwfeatures/$recipe/images/live/p0/30/k9/p030k9by.jpg","title":"BBC Earth External Link"},"future-external-promotion":{"URL":"https://web.archive.org/web/20170804082830/http://ichef.bbci.co.uk/wwfeatures/$recipe/images/live/p0/2r/tx/p02rtx8g.jpg","title":"BBC Future External Link"},"travel-external-promotion":{"URL":"https://web.archive.org/web/20170804082830/http://ichef.bbci.co.uk/wwfeatures/$recipe/images/live/p0/2j/hr/p02jhrqm.jpg","title":"BBC Travel External Link"},"sol-catch-page":{"URL":"https://web.archive.org/web/20170804082830/http://ichef.bbci.co.uk/wwfeatures/$recipe/images/live/p0/4d/f9/p04df9pv.jpg","title":"BBC Earth - Sir David Attenborough's Story of Life"},"sol-video-page":{"URL":"https://web.archive.org/web/20170804082830/http://ichef.bbci.co.uk/wwfeatures/$recipe/images/live/p0/4d/f9/p04df9pv.jpg","title":"BBC Earth - Sir David Attenborough's Story of Life"}},"module":{"id":"wwearth","backendModuleId":"wwearth","isGeoRestricted":false,"name":"Earth","domain":"earth","brandColor":"#008e9b","description":"BBC Earth"},"moduleId":"wwearth","environment":"live","socialIcons":{"default":{"desktop":["facebook","twitter","reddit","stumbleupon","google","email"],"mobile":["facebook","twitter","reddit","whatsapp","google","email"]},"slideshow_gallery":{"desktop":["email","facebook","twitter","pinterest","reddit"],"mobile":["email","facebook","twitter","pinterest","whatsapp"]},"sol_video_player":{"desktop":["email","facebook","twitter","pinterest","reddit"],"mobile":["email","facebook","twitter","pinterest","whatsapp"]}},"socialLinks":{"facebook":{"url":"https://web.archive.org/web/20170804082830/https://www.facebook.com/BBCEarth"},"twitter":{"url":"https://web.archive.org/web/20170804082830/https://twitter.com/BBCEarth","username":"BBCEarth"},"youtube":{"url":"https://web.archive.org/web/20170804082830/https://www.youtube.com/user/BBCEarth"},"instagram":{"url":"https://web.archive.org/web/20170804082830/http://instagram.com/bbcearth"}},"analytics":{"is_enabled":true,"bbc_vertical_regex":"/^http(|s):\\/\\/[a-z0-9\\-.]+.bbc.com\\/(future|culture|earth|capital|autos|travel|britain)(\\/)?(.*)?/","comscore":{"is_enabled":true,"url_ssc_http":"https://web.archive.org/web/20170804082830/http://ssc.api.bbc.com/","url_ssc_https":"https://web.archive.org/web/20170804082830/https://ssc.api.bbc.com/","url_scorecard_http":"https://web.archive.org/web/20170804082830/http://b.scorecardresearch.com/b","url_scorecard_https":"https://web.archive.org/web/20170804082830/https://sb.scorecardresearch.com/b","suite":"bbc","customer_id":"19774467","user_tracking_cookie":"ckpf_sscid","user_tracking_cookie_legacy":"ckpf_uid","delay_tracking_cookie":"ckpf_wwverticalscs","tracking_timeout":500}},"image_recipe":{"recipe_prefix":"live/","watermarking_enabled":true},"story-of-life":{"custom-collection-max-length":6,"image-url":{"directory":"live","recipe-placeholder":"{recipe}"}},"static":{"url":"https://web.archive.org/web/20170804082830/http://www.bbc.com/earth/static/80639ec75e40","brand-img-dir":"/img/shared/brands/","vertical":"earth","module":"wwearth"}}, _entityMapping="wwearth/story/{id}", _exposedData={"story":{"Content":{"AssetCustom":"","AssetIbroadcast":null,"AssetImage":[{"Content":{"FileSizeBytes":869880,"MimeType":"image/jpeg","SourceHeight":1080,"SourceUrl":"https://web.archive.org/web/20170804082830/https://s3-eu-west-1.amazonaws.com/live-galileo-interface-mt-resources-imagebucket-1a92e5tj3b5d6/p0/4z/0q/p04z0qvq.jpg","SourceWidth":1920,"SynopsisLong":"Particle physics tells us what the world is made of (Credit: Science Photo Library/Alamy)","SynopsisMedium":"Particle physics tells us what the world is made of (Credit: Science Photo Library/Alamy)","SynopsisShort":"Particle physics tells us what the world is made of (Credit: Science Photo Library/Alamy)","TemplateUrl":"https://web.archive.org/web/20170804082830/http://ichef.bbci.co.uk/wwfeatures/$recipe/images/live/p0/4z/0q/p04z0qvq.jpg","Title":"C5HGR8-neutrinos-SPL-Alamy.jpg","CreationDateTime":"0001-01-01T00:00:00Z","Entity":"","Guid":"","Id":"p04z0qvq","ModifiedDateTime":"0001-01-01T00:00:00Z","Project":"","Slug":""},"Metadata":{"CreationDateTime":"0001-01-01T00:00:00Z","Entity":"","Guid":"","Id":"p04z0qvq","ModifiedDateTime":"0001-01-01T00:00:00Z","Project":"","Slug":""},"Urn":"urn:pubstack:jative:image:p04z0qvq","_id":"5981d318543960df95df1ba7"}],"AssetImagePromo":null,"AssetInfographic":"","AssetInline":null,"AssetSelect":"ib2video","AssetVideoIb2":[{"Duration":636,"Metadata":{"CreationDateTime":"0001-01-01T00:00:00Z","Entity":"videopid","Guid":"","Id":"p04yy2zq","ModifiedDateTime":"0001-01-01T00:00:00Z","Project":"","Slug":""},"Thumbnail":[{"Content":{"FileSizeBytes":122709,"MimeType":"image/jpeg","SourceHeight":1080,"SourceUrl":"https://web.archive.org/web/20170804082830/https://s3-eu-west-1.amazonaws.com/live-galileo-interface-mt-resources-imagebucket-1a92e5tj3b5d6/p0/4y/y5/p04yy53d.jpg","SourceWidth":1920,"SynopsisLong":"BBC","SynopsisMedium":"Keyframe #9","SynopsisShort":"What is everything made of?","TemplateUrl":"https://web.archive.org/web/20170804082830/http://ichef.bbci.co.uk/wwfeatures/$recipe/images/live/p0/4y/y5/p04yy53d.jpg","Title":"What is everything made of?","CreationDateTime":"0001-01-01T00:00:00Z","Entity":"","Guid":"","Id":"p04yy53d","ModifiedDateTime":"0001-01-01T00:00:00Z","Project":"","Slug":""},"Metadata":{"CreationDateTime":"0001-01-01T00:00:00Z","Entity":"","Guid":"","Id":"p04yy53d","ModifiedDateTime":"0001-01-01T00:00:00Z","Project":"","Slug":""},"Urn":"urn:pubstack:jative:image:p04yy53d","_id":"5981f021543960df95dfc730"}],"Title":"What is everything made of?","Urn":"urn:pubstack:jative:videopid:p04yy2zq","Vpid":"p04yy2zt","_id":"5981d418543960df95dfb041"}],"AssetVideoMps":null,"Author":null,"BodyHtml":"<p>Science writer and astrophysicist <a href=\"http://freelanceastrophysicist.com/\">Adam Becker</a> explains what the Universe is made of to BBC Earth's <a href=\"https://twitter.com/m_c_marshall\" target=\"_blank\">Michael Marshall</a> and <a href=\"https://twitter.com/melissasuzanneh\" target=\"_blank\">Melissa Hogenboom</a>, with help from the animators at <strong>Pomona Pictures</strong>.</p><p><em>Join over six million BBC Earth fans by liking us on <a href=\"https://www.facebook.com/bbcearth\" target=\"_blank\">Facebook</a>, or follow us on <a href=\"https://twitter.com/bbcearth\" target=\"_blank\">Twitter</a> and <a href=\"https://instagram.com/bbcearth/\" target=\"_blank\">Instagram</a>.</em></p><p><em>If you liked this story, <a href=\"http://pages.emails.bbc.com/subscribe/?ocid=ear.bbc.email.we.email-signup\" target=\"_blank\">sign up for the weekly bbc.com features newsletter</a> called \"If You Only Read 6 Things This Week\". A handpicked selection of stories from BBC Future, Earth, Culture, Capital and Travel, delivered to your inbox every Friday.</em></p>","BusinessUnit":"worldwide","CalloutBody":"","CalloutPosition":"","CalloutSubtitle":"","CalloutTitle":"","Campaign":null,"Collection":[{"Content":{"AssetImage":[{"Content":{"FileSizeBytes":554724,"MimeType":"image/jpeg","SourceHeight":900,"SourceUrl":"https://web.archive.org/web/20170804082830/http://deltaorigin.bbc.co.uk/images/live/p0/26/h3/p026h3ws.jpg","SourceWidth":1600,"SynopsisLong":"Slow loris hole (credit: BBC Earth Productions)","SynopsisMedium":"Slow loris hole (credit: BBC Earth Productions)","SynopsisShort":"Slow loris hole (credit: BBC Earth Productions)","TemplateUrl":"https://web.archive.org/web/20170804082830/http://ichef.bbci.co.uk/wwfeatures/$recipe/images/live/p0/26/h3/p026h3ws.jpg","Title":"1600_LORIS_12.jpg","CreationDateTime":"0001-01-01T00:00:00Z","Entity":"","Guid":"","Id":"p026h3ws","ModifiedDateTime":"0001-01-01T00:00:00Z","Project":"","Slug":""},"Metadata":{"CreationDateTime":"0001-01-01T00:00:00Z","Entity":"","Guid":"","Id":"p026h3ws","ModifiedDateTime":"0001-01-01T00:00:00Z","Project":"","Slug":""},"Urn":"urn:pubstack:jative:image:p026h3ws","_id":"5981d1e8543960df95de7c63"}],"Campaign":null,"CollectionOverrides":null,"CollectionType":"column","Description":"Hot videos, that our audiences just loved to share","Name":"Video","Partner":null,"PrimaryVertical":"wwearth","Title":"Video","CreationDateTime":"2015-08-31T16:03:52.592676Z","Entity":"collection","Guid":"12cc46ca-2839-468b-bc28-b5ac25ee7298","Id":"wwearth/column/video","ModifiedDateTime":"2015-09-03T15:08:15.392647Z","Project":"wwearth","Slug":"column/video"},"Metadata":{"CreationDateTime":"2015-08-31T16:03:52.592676Z","Entity":"collection","Guid":"12cc46ca-2839-468b-bc28-b5ac25ee7298","Id":"wwearth/column/video","ModifiedDateTime":"2015-09-03T15:08:15.392647Z","Project":"wwearth","Slug":"column/video"},"Urn":"urn:pubstack:jative:collection:wwearth/column/video","_id":"5981d0e5543960df95ddec99"},{"Content":{"AssetImage":[{"Content":{"FileSizeBytes":3679250,"MimeType":"image/jpeg","SourceHeight":3159,"SourceUrl":"https://web.archive.org/web/20170804082830/http://deltaorigin.bbc.co.uk/images/live/p0/2l/56/p02l56j9.jpg","SourceWidth":5616,"SynopsisLong":"Delicate Arch in Utah, with the Milky Way in the background (Credit: NPS Photo/Alamy)","SynopsisMedium":"Delicate Arch in Utah, with the Milky Way in the background (Credit: NPS Photo/Alamy)","SynopsisShort":"Delicate Arch in Utah, with the Milky Way in the background (Credit: NPS Photo/Alamy)","TemplateUrl":"https://web.archive.org/web/20170804082830/http://ichef.bbci.co.uk/wwfeatures/$recipe/images/live/p0/2l/56/p02l56j9.jpg","Title":"Delicate_Arch_Milky_Way NPS_Photo Alamy crop.jpg"},"Metadata":{"CreationDateTime":"0001-01-01T00:00:00Z","Entity":"","Guid":"","Id":"p02l56j9","ModifiedDateTime":"0001-01-01T00:00:00Z","Project":"","Slug":""},"Urn":"urn:pubstack:jative:image:p02l56j9","_id":"5983fbff543960df95e0dbae"}],"Campaign":null,"CollectionOverrides":null,"CollectionType":"column","Description":"The biggest questions about life, the universe and everything - and how to answer them","Name":"The Big Questions","Partner":null,"PrimaryVertical":"wwearth","Title":"The Big Questions"},"Metadata":{"CreationDateTime":"2015-08-31T16:08:19.672121Z","Entity":"collection","Guid":"b223f348-1133-4674-aa14-89c671bab02b","Id":"wwearth/column/the-big-questions","ModifiedDateTime":"2015-09-03T15:02:18.264474Z","Project":"wwearth","Slug":"column/the-big-questions"},"Urn":"urn:pubstack:jative:collection:wwearth/column/the-big-questions","_id":"5981d0e5543960df95ddec51"}],"DisableAdverts":false,"DisplayDate":"2017-04-05T07:00:00Z","Geolocation":null,"HeadlineLong":"The physics that tells us what the Universe is made of","HeadlineShort":"The things that are smaller than atoms","HideRelated":false,"Horizontal":null,"Intro":"Everything around us is made of atoms, but it turns out that the building blocks of the Universe are far stranger than that","IsSyndicated":true,"Latitude":"","Location":null,"Longitude":"","Option":null,"Partner":null,"PrimaryVertical":"wwearth","Programme":null,"RelatedStory":[{"Content":{"AssetCustom":"","AssetIbroadcast":null,"AssetImage":[{"Content":{"FileSizeBytes":381336,"MimeType":"image/jpeg","SourceHeight":1080,"SourceUrl":"https://web.archive.org/web/20170804082830/https://s3-eu-west-1.amazonaws.com/live-galileo-interface-mt-resources-imagebucket-1a92e5tj3b5d6/p0/4y/cy/p04ycycv.jpg","SourceWidth":1920,"SynopsisLong":"","SynopsisMedium":"","SynopsisShort":"Science! (Credit: Pomona Pictures)","TemplateUrl":"https://web.archive.org/web/20170804082830/http://ichef.bbci.co.uk/wwfeatures/$recipe/images/live/p0/4y/cy/p04ycycv.jpg","Title":"Screen Shot 2017 03 29 at 11 00 19","CreationDateTime":"0001-01-01T00:00:00Z","Entity":"","Guid":"","Id":"p04ycycv","ModifiedDateTime":"0001-01-01T00:00:00Z","Project":"","Slug":""},"Metadata":{"CreationDateTime":"0001-01-01T00:00:00Z","Entity":"","Guid":"","Id":"p04ycycv","ModifiedDateTime":"0001-01-01T00:00:00Z","Project":"","Slug":""},"Urn":"urn:pubstack:jative:image:p04ycycv","_id":"5981d321543960df95df1e12"}],"AssetImagePromo":null,"AssetInfographic":"","AssetInline":null,"AssetSelect":"ib2video","AssetVideoIb2":[{"Duration":375,"Metadata":{"CreationDateTime":"0001-01-01T00:00:00Z","Entity":"videopid","Guid":"","Id":"p04y6p7y","ModifiedDateTime":"0001-01-01T00:00:00Z","Project":"","Slug":""},"Thumbnail":[],"Title":"How does science know anything?","Urn":"urn:pubstack:jative:videopid:p04y6p7y","Vpid":"p04y6p81","_id":"598215fe543960df95dfdb82"}],"AssetVideoMps":null,"Author":null,"BodyHtml":"<p>Science writer and astrophysicist <a href=\"http://freelanceastrophysicist.com/\">Adam Becker</a> explains how science really works to BBC Earth's <a href=\"https://twitter.com/m_c_marshall\" target=\"_blank\">Michael Marshall</a> and <a href=\"https://twitter.com/melissasuzanneh\" target=\"_blank\">Melissa Hogenboom</a>, with help from the animators at <strong>Pomona Pictures</strong>.</p><p><em>Join over six million BBC Earth fans by liking us on <a href=\"https://www.facebook.com/bbcearth\" target=\"_blank\">Facebook</a>, or follow us on <a href=\"https://twitter.com/bbcearth\" target=\"_blank\">Twitter</a> and <a href=\"https://instagram.com/bbcearth/\" target=\"_blank\">Instagram</a>.</em></p><p><em>If you liked this story, <a href=\"http://pages.emails.bbc.com/subscribe/?ocid=ear.bbc.email.we.email-signup\" target=\"_blank\">sign up for the weekly bbc.com features newsletter</a> called \"If You Only Read 6 Things This Week\". A handpicked selection of stories from BBC Future, Earth, Culture, Capital and Travel, delivered to your inbox every Friday.</em></p>","BusinessUnit":"worldwide","CalloutBody":"","CalloutPosition":"","CalloutSubtitle":"","CalloutTitle":"","Campaign":null,"Collection":[{"Content":{"AssetImage":[],"Campaign":null,"CollectionOverrides":null,"CollectionType":"column","Description":"Hot videos, that our audiences just loved to share","Name":"Video","Partner":null,"PrimaryVertical":"wwearth","Title":"Video","CreationDateTime":"2015-08-31T16:03:52.592676Z","Entity":"collection","Guid":"12cc46ca-2839-468b-bc28-b5ac25ee7298","Id":"wwearth/column/video","ModifiedDateTime":"2015-09-03T15:08:15.392647Z","Project":"wwearth","Slug":"column/video"},"Metadata":{"CreationDateTime":"2015-08-31T16:03:52.592676Z","Entity":"collection","Guid":"12cc46ca-2839-468b-bc28-b5ac25ee7298","Id":"wwearth/column/video","ModifiedDateTime":"2015-09-03T15:08:15.392647Z","Project":"wwearth","Slug":"column/video"},"Urn":"urn:pubstack:jative:collection:wwearth/column/video","_id":"5981d0e5543960df95ddec99"},{"Content":{"AssetImage":[],"Campaign":null,"CollectionOverrides":null,"CollectionType":"column","Description":"The biggest questions about life, the universe and everything - and how to answer them","Name":"The Big Questions","Partner":null,"PrimaryVertical":"wwearth","Title":"The Big Questions"},"Metadata":{"CreationDateTime":"2015-08-31T16:08:19.672121Z","Entity":"collection","Guid":"b223f348-1133-4674-aa14-89c671bab02b","Id":"wwearth/column/the-big-questions","ModifiedDateTime":"2015-09-03T15:02:18.264474Z","Project":"wwearth","Slug":"column/the-big-questions"},"Urn":"urn:pubstack:jative:collection:wwearth/column/the-big-questions","_id":"5981d0e5543960df95ddec51"}],"DisableAdverts":false,"DisplayDate":"2017-03-28T07:00:00Z","Geolocation":null,"HeadlineLong":"Why you should mostly trust what science tells you","HeadlineShort":"Can we trust what science tells us?","HideRelated":false,"Horizontal":null,"Intro":"Scientists often change their minds or make mistakes, so why is it a good idea to believe what they say?","IsSyndicated":true,"Latitude":"","Location":null,"Longitude":"","Option":null,"Partner":null,"PrimaryVertical":"wwearth","Programme":null,"RelatedStory":[{"Content":{"AssetCustom":"","AssetIbroadcast":null,"AssetImage":[],"AssetImagePromo":null,"AssetInfographic":"","AssetInline":null,"AssetSelect":"ib2video","AssetVideoIb2":[],"AssetVideoMps":null,"Author":null,"BodyHtml":"<p>Science writer and astrophysicist <a href=\"http://freelanceastrophysicist.com/\">Adam Becker</a> explains why we cannot see the Big Bang to BBC Earth's <a href=\"https://twitter.com/m_c_marshall\" target=\"_blank\">Michael Marshall</a> and <a href=\"https://twitter.com/melissasuzanneh\" target=\"_blank\">Melissa Hogenboom</a>, with help from the animators at <strong>Pomona Pictures</strong>.</p><p><em>Join over six million BBC Earth fans by liking us on <a href=\"https://www.facebook.com/bbcearth\" target=\"_blank\">Facebook</a>, or follow us on <a href=\"https://twitter.com/bbcearth\" target=\"_blank\">Twitter</a> and <a href=\"https://instagram.com/bbcearth/\" target=\"_blank\">Instagram</a>.</em></p><p><em>If you liked this story, <a href=\"http://pages.emails.bbc.com/subscribe/?ocid=ear.bbc.email.we.email-signup\" target=\"_blank\">sign up for the weekly bbc.com features newsletter</a> called \"If You Only Read 6 Things This Week\". A handpicked selection of stories from BBC Future, Earth, Culture, Capital and Travel, delivered to your inbox every Friday.</em></p>","BusinessUnit":"worldwide","CalloutBody":"","CalloutPosition":"","CalloutSubtitle":"","CalloutTitle":"","Campaign":null,"Collection":[],"DisableAdverts":false,"DisplayDate":"2017-03-23T07:00:00Z","Geolocation":null,"HeadlineLong":"Why we do not know what the Big Bang looked like","HeadlineShort":"What did the Big Bang look like?","HideRelated":false,"Horizontal":null,"Intro":"This one cataclysmic event gave rise to our entire Universe, but it seems we can never truly know what it looked like","IsSyndicated":true,"Latitude":"","Location":null,"Longitude":"","Option":null,"Partner":null,"PrimaryVertical":"wwearth","Programme":null,"RelatedStory":[],"RelatedTag":[],"StoryType":"video","SummaryLong":"This one cataclysmic event gave rise to our entire Universe, but it seems we can never truly know what it looked like","SummaryShort":"It was the birth of our entire Universe","SuperSection":null,"Tag":[]},"Metadata":{"CreationDateTime":"2017-03-23T07:00:48.440615Z","Entity":"story","Guid":"d097818d-5104-44a3-aecf-b2786bef006a","Id":"wwearth/story/20170322-why-we-do-not-know-what-the-big-bang-looked-like","ModifiedDateTime":"2017-03-23T07:00:48.440615Z","Project":"wwearth","Slug":"20170322-why-we-do-not-know-what-the-big-bang-looked-like"},"Urn":"urn:pubstack:jative:story:wwearth/story/20170322-why-we-do-not-know-what-the-big-bang-looked-like","_id":"598222d3543960df95dfe26a"},{"Content":{"AssetCustom":"","AssetIbroadcast":null,"AssetImage":[],"AssetImagePromo":null,"AssetInfographic":"","AssetInline":null,"AssetSelect":"ib2video","AssetVideoIb2":[],"AssetVideoMps":null,"Author":null,"BodyHtml":"<p>Science writer and astrophysicist <a href=\"http://freelanceastrophysicist.com/\">Adam Becker</a> explains why so much of the Universe is invisible to BBC Earth's <a href=\"https://twitter.com/melissasuzanneh\" target=\"_blank\">Melissa Hogenboom</a>, with help from the animators at <strong>Pomona Pictures</strong>.</p><p><em>Join over six million BBC Earth fans by liking us on <a href=\"https://www.facebook.com/bbcearth\" target=\"_blank\">Facebook</a>, or follow us on <a href=\"https://twitter.com/bbcearth\" target=\"_blank\">Twitter</a> and <a href=\"https://instagram.com/bbcearth/\" target=\"_blank\">Instagram</a>.</em></p><p><em>If you liked this story, <a href=\"http://pages.emails.bbc.com/subscribe/?ocid=ear.bbc.email.we.email-signup\" target=\"_blank\">sign up for the weekly bbc.com features newsletter</a> called \"If You Only Read 6 Things This Week\". A handpicked selection of stories from BBC Future, Earth, Culture, Capital and Travel, delivered to your inbox every Friday.</em></p>","BusinessUnit":"worldwide","CalloutBody":"","CalloutPosition":"","CalloutSubtitle":"","CalloutTitle":"","Campaign":null,"Collection":[],"DisableAdverts":false,"DisplayDate":"2017-03-15T07:00:00Z","Geolocation":null,"HeadlineLong":"Why almost all of the Universe is utterly invisible","HeadlineShort":"Why most of the Universe is invisible","HideRelated":false,"Horizontal":null,"Intro":"About 95% of the cosmos cannot be seen by any telescopes, because it is made of mysterious \"dark matter\" and \"dark energy\" that do not interact with light","IsSyndicated":true,"Location":null,"Option":null,"Partner":null,"PrimaryVertical":"wwearth","Programme":null,"RelatedStory":[],"RelatedTag":[],"StoryType":"video","SummaryLong":"About 95% of the cosmos cannot be seen by any telescopes, because it is made of mysterious \"dark matter\" and \"dark energy\" that do not interact with light","SummaryShort":"About 95% of the cosmos cannot be seen","SuperSection":null,"Tag":[]},"Metadata":{"CreationDateTime":"2017-03-16T10:10:35.614602Z","Entity":"story","Guid":"4cd14f0d-196a-4167-803b-80a910a63742","Id":"wwearth/story/20170315-why-almost-all-of-the-universe-is-utterly-invisible","ModifiedDateTime":"2017-03-16T10:10:35.614602Z","Project":"wwearth","Slug":"20170315-why-almost-all-of-the-universe-is-utterly-invisible"},"Urn":"urn:pubstack:jative:story:wwearth/story/20170315-why-almost-all-of-the-universe-is-utterly-invisible","_id":"59824a3f543960df95dff798"},{"Content":{"AssetCustom":"","AssetIbroadcast":null,"AssetImage":[],"AssetImagePromo":null,"AssetInfographic":"","AssetInline":null,"AssetSelect":"ib2video","AssetVideoIb2":[],"AssetVideoMps":null,"Author":null,"BodyHtml":"<p>Science writer and astrophysicist <a href=\"http://freelanceastrophysicist.com/\">Adam Becker</a> explains why the sky is dark at night to BBC Earth's <a href=\"https://twitter.com/m_c_marshall\">Michael Marshall</a>, with help from the animators at <strong>Pomona Pictures</strong>.</p><p><em>Join over six million BBC Earth fans by liking us on <a href=\"https://www.facebook.com/bbcearth\" target=\"_blank\">Facebook</a>, or follow us on <a href=\"https://twitter.com/bbcearth\" target=\"_blank\">Twitter</a> and <a href=\"https://instagram.com/bbcearth/\" target=\"_blank\">Instagram</a>.</em></p><p><em>If you liked this story, <a href=\"http://pages.emails.bbc.com/subscribe/?ocid=ear.bbc.email.we.email-signup\" target=\"_blank\">sign up for the weekly bbc.com features newsletter</a> called \"If You Only Read 6 Things This Week\". A handpicked selection of stories from BBC Future, Earth, Culture, Capital and Travel, delivered to your inbox every Friday.</em></p>","BusinessUnit":"worldwide","CalloutBody":"","CalloutPosition":"","CalloutSubtitle":"","CalloutTitle":"","Campaign":null,"Collection":[],"DisableAdverts":false,"DisplayDate":"2017-03-07T09:42:13.266Z","Geolocation":null,"HeadlineLong":"The fact the sky is dark reveals a lot about the Universe","HeadlineShort":"Why the sky is dark at night","HideRelated":false,"Horizontal":null,"Intro":"It may seem utterly obvious that the sky is dark, but in fact it seems to give rise to a peculiar paradox about the cosmos","IsSyndicated":true,"Location":null,"Option":null,"Partner":null,"PrimaryVertical":"wwearth","Programme":null,"RelatedStory":[],"RelatedTag":[],"StoryType":"video","SummaryLong":"It may seem utterly obvious that the sky is dark, but in fact it seems to give rise to a peculiar paradox about the cosmos","SummaryShort":"It may seem obvious, but the dark sky tells us a lot about the Universe","SuperSection":null,"Tag":[]},"Metadata":{"CreationDateTime":"2017-03-07T09:43:35.25304Z","Entity":"story","Guid":"de1c9861-52c3-4170-8aa6-3ca6dd137646","Id":"wwearth/story/20170307-the-fact-the-sky-is-dark-reveals-a-lot-about-the-universe","ModifiedDateTime":"2017-03-07T09:43:35.25304Z","Project":"wwearth","Slug":"20170307-the-fact-the-sky-is-dark-reveals-a-lot-about-the-universe"},"Urn":"urn:pubstack:jative:story:wwearth/story/20170307-the-fact-the-sky-is-dark-reveals-a-lot-about-the-universe","_id":"5983289a543960df95e06a0c"}],"RelatedTag":[{"Content":{"AssetImage":null,"Description":"","LinkUrl":"","Name":"Physics"},"Metadata":{"CreationDateTime":"2014-11-05T16:17:17Z","Entity":"tag","Guid":"6e9f0e97-66ce-4f69-bed7-82ed4ab69aa1","Id":"tag/physics","ModifiedDateTime":"2015-09-03T09:10:14.283862Z","Project":"","Slug":"physics"},"Urn":"urn:pubstack:jative:tag:tag/physics","_id":"5981d40a543960df95dfa48d"}],"StoryType":"video","SummaryLong":"Scientists often change their minds or make mistakes, so why is it a good idea to believe what they say?","SummaryShort":"After all, scientists do sometimes make mistakes","SuperSection":null,"Tag":[{"Content":{"AssetImage":null,"Description":"","LinkUrl":"","Name":"Philosophy","CreationDateTime":"2017-03-28T07:28:48.186038Z","Entity":"tag","Guid":"7e0baf7e-2e2d-45ab-907a-71d39439256c","Id":"tag/philosophy","ModifiedDateTime":"2017-03-28T07:28:48.186038Z","Project":"","Slug":"philosophy"},"Metadata":{"CreationDateTime":"2017-03-28T07:28:48.186038Z","Entity":"tag","Guid":"7e0baf7e-2e2d-45ab-907a-71d39439256c","Id":"tag/philosophy","ModifiedDateTime":"2017-03-28T07:28:48.186038Z","Project":"","Slug":"philosophy"},"Urn":"urn:pubstack:jative:tag:tag/philosophy","_id":"5981d409543960df95dfa447"}],"CreationDateTime":"2017-03-29T06:00:48.473775Z","Entity":"story","Guid":"b20791a1-7b93-4a70-9fd6-a8064eebfaf6","Id":"wwearth/story/20170328-why-you-should-mostly-trust-what-science-tells-you","ModifiedDateTime":"2017-03-29T10:05:56.59225Z","Project":"wwearth","Slug":"20170328-why-you-should-mostly-trust-what-science-tells-you"},"Metadata":{"CreationDateTime":"2017-03-29T06:00:48.473775Z","Entity":"story","Guid":"b20791a1-7b93-4a70-9fd6-a8064eebfaf6","Id":"wwearth/story/20170328-why-you-should-mostly-trust-what-science-tells-you","ModifiedDateTime":"2017-03-29T10:05:56.59225Z","Project":"wwearth","Slug":"20170328-why-you-should-mostly-trust-what-science-tells-you"},"Urn":"urn:pubstack:jative:story:wwearth/story/20170328-why-you-should-mostly-trust-what-science-tells-you","_id":"5981f9a8543960df95dfcc6d"},{"Content":{"AssetCustom":"","AssetIbroadcast":null,"AssetImage":[{"Content":{"FileSizeBytes":202099,"MimeType":"image/jpeg","SourceHeight":1080,"SourceUrl":"https://web.archive.org/web/20170804082830/https://s3-eu-west-1.amazonaws.com/live-galileo-interface-mt-resources-imagebucket-1a92e5tj3b5d6/p0/4w/xz/p04wxzr7.jpg","SourceWidth":1920,"SynopsisLong":"Most of the Universe is invisible to even the best telescopes (Credit: Pomona Pictures)","SynopsisMedium":"Most of the Universe is invisible to even the best telescopes (Credit: Pomona Pictures)","SynopsisShort":"Most of the Universe is invisible to even the best telescopes (Credit: Pomona Pictures)","TemplateUrl":"https://web.archive.org/web/20170804082830/http://ichef.bbci.co.uk/wwfeatures/$recipe/images/live/p0/4w/xz/p04wxzr7.jpg","Title":"Mike_telescope.jpg","CreationDateTime":"0001-01-01T00:00:00Z","Entity":"","Guid":"","Id":"p04wxzr7","ModifiedDateTime":"0001-01-01T00:00:00Z","Project":"","Slug":""},"Metadata":{"CreationDateTime":"0001-01-01T00:00:00Z","Entity":"","Guid":"","Id":"p04wxzr7","ModifiedDateTime":"0001-01-01T00:00:00Z","Project":"","Slug":""},"Urn":"urn:pubstack:jative:image:p04wxzr7","_id":"59824477543960df95dff461"}],"AssetImagePromo":null,"AssetInfographic":"","AssetInline":null,"AssetSelect":"ib2video","AssetVideoIb2":[{"Duration":375,"Metadata":{"CreationDateTime":"0001-01-01T00:00:00Z","Entity":"videopid","Guid":"","Id":"p04wvx7k","ModifiedDateTime":"0001-01-01T00:00:00Z","Project":"","Slug":""},"Thumbnail":[],"Title":"Why is so much of the Universe invisible?","Urn":"urn:pubstack:jative:videopid:p04wvx7k","Vpid":"p04wvx7m","_id":"5981d41c543960df95dfb469"}],"AssetVideoMps":null,"Author":null,"BodyHtml":"<p>Science writer and astrophysicist <a href=\"http://freelanceastrophysicist.com/\">Adam Becker</a> explains why so much of the Universe is invisible to BBC Earth's <a href=\"https://twitter.com/melissasuzanneh\" target=\"_blank\">Melissa Hogenboom</a>, with help from the animators at <strong>Pomona Pictures</strong>.</p><p><em>Join over six million BBC Earth fans by liking us on <a href=\"https://www.facebook.com/bbcearth\" target=\"_blank\">Facebook</a>, or follow us on <a href=\"https://twitter.com/bbcearth\" target=\"_blank\">Twitter</a> and <a href=\"https://instagram.com/bbcearth/\" target=\"_blank\">Instagram</a>.</em></p><p><em>If you liked this story, <a href=\"http://pages.emails.bbc.com/subscribe/?ocid=ear.bbc.email.we.email-signup\" target=\"_blank\">sign up for the weekly bbc.com features newsletter</a> called \"If You Only Read 6 Things This Week\". A handpicked selection of stories from BBC Future, Earth, Culture, Capital and Travel, delivered to your inbox every Friday.</em></p>","BusinessUnit":"worldwide","CalloutBody":"","CalloutPosition":"","CalloutSubtitle":"","CalloutTitle":"","Campaign":null,"Collection":[{"Content":{"AssetImage":[],"Campaign":null,"CollectionOverrides":null,"CollectionType":"column","Description":"Hot videos, that our audiences just loved to share","Name":"Video","Partner":null,"PrimaryVertical":"wwearth","Title":"Video","CreationDateTime":"2015-08-31T16:03:52.592676Z","Entity":"collection","Guid":"12cc46ca-2839-468b-bc28-b5ac25ee7298","Id":"wwearth/column/video","ModifiedDateTime":"2015-09-03T15:08:15.392647Z","Project":"wwearth","Slug":"column/video"},"Metadata":{"CreationDateTime":"2015-08-31T16:03:52.592676Z","Entity":"collection","Guid":"12cc46ca-2839-468b-bc28-b5ac25ee7298","Id":"wwearth/column/video","ModifiedDateTime":"2015-09-03T15:08:15.392647Z","Project":"wwearth","Slug":"column/video"},"Urn":"urn:pubstack:jative:collection:wwearth/column/video","_id":"5981d0e5543960df95ddec99"}],"DisableAdverts":false,"DisplayDate":"2017-03-15T07:00:00Z","Geolocation":null,"HeadlineLong":"Why almost all of the Universe is utterly invisible","HeadlineShort":"Why most of the Universe is invisible","HideRelated":false,"Horizontal":null,"Intro":"About 95% of the cosmos cannot be seen by any telescopes, because it is made of mysterious \"dark matter\" and \"dark energy\" that do not interact with light","IsSyndicated":true,"Location":null,"Option":null,"Partner":null,"PrimaryVertical":"wwearth","Programme":null,"RelatedStory":[{"Content":{"AssetCustom":"","AssetIbroadcast":null,"AssetImage":[],"AssetImagePromo":null,"AssetInfographic":"","AssetInline":null,"AssetSelect":"ib2video","AssetVideoIb2":[],"AssetVideoMps":null,"Author":null,"BodyHtml":"<p>Science writer and astrophysicist <a href=\"http://freelanceastrophysicist.com/\">Adam Becker</a> explains why the sky is dark at night to BBC Earth's <a href=\"https://twitter.com/m_c_marshall\">Michael Marshall</a>, with help from the animators at <strong>Pomona Pictures</strong>.</p><p><em>Join over six million BBC Earth fans by liking us on <a href=\"https://www.facebook.com/bbcearth\" target=\"_blank\">Facebook</a>, or follow us on <a href=\"https://twitter.com/bbcearth\" target=\"_blank\">Twitter</a> and <a href=\"https://instagram.com/bbcearth/\" target=\"_blank\">Instagram</a>.</em></p><p><em>If you liked this story, <a href=\"http://pages.emails.bbc.com/subscribe/?ocid=ear.bbc.email.we.email-signup\" target=\"_blank\">sign up for the weekly bbc.com features newsletter</a> called \"If You Only Read 6 Things This Week\". A handpicked selection of stories from BBC Future, Earth, Culture, Capital and Travel, delivered to your inbox every Friday.</em></p>","BusinessUnit":"worldwide","CalloutBody":"","CalloutPosition":"","CalloutSubtitle":"","CalloutTitle":"","Campaign":null,"Collection":[],"DisableAdverts":false,"DisplayDate":"2017-03-07T09:42:13.266Z","Geolocation":null,"HeadlineLong":"The fact the sky is dark reveals a lot about the Universe","HeadlineShort":"Why the sky is dark at night","HideRelated":false,"Horizontal":null,"Intro":"It may seem utterly obvious that the sky is dark, but in fact it seems to give rise to a peculiar paradox about the cosmos","IsSyndicated":true,"Location":null,"Option":null,"Partner":null,"PrimaryVertical":"wwearth","Programme":null,"RelatedStory":[],"RelatedTag":[],"StoryType":"video","SummaryLong":"It may seem utterly obvious that the sky is dark, but in fact it seems to give rise to a peculiar paradox about the cosmos","SummaryShort":"It may seem obvious, but the dark sky tells us a lot about the Universe","SuperSection":null,"Tag":[]},"Metadata":{"CreationDateTime":"2017-03-07T09:43:35.25304Z","Entity":"story","Guid":"de1c9861-52c3-4170-8aa6-3ca6dd137646","Id":"wwearth/story/20170307-the-fact-the-sky-is-dark-reveals-a-lot-about-the-universe","ModifiedDateTime":"2017-03-07T09:43:35.25304Z","Project":"wwearth","Slug":"20170307-the-fact-the-sky-is-dark-reveals-a-lot-about-the-universe"},"Urn":"urn:pubstack:jative:story:wwearth/story/20170307-the-fact-the-sky-is-dark-reveals-a-lot-about-the-universe","_id":"5983289a543960df95e06a0c"},{"Content":{"AssetCustom":"","AssetIbroadcast":null,"AssetImage":[],"AssetImagePromo":null,"AssetInfographic":"","AssetInline":null,"AssetSelect":"ib2video","AssetVideoIb2":[],"AssetVideoMps":null,"Author":null,"BodyHtml":"<p>Science writer and astrophysicist <a href=\"http://freelanceastrophysicist.com/\">Adam Becker</a> explains why we cannot go faster than light to BBC Earth's <a href=\"https://twitter.com/melissasuzanneh\">Melissa Hogenboom</a> and <a href=\"https://twitter.com/m_c_marshall\">Michael Marshall</a>, with help from the animators at <strong>Pomona Pictures</strong>.</p><p><em>Join over six million BBC Earth fans by liking us on <a href=\"https://www.facebook.com/bbcearth\" target=\"_blank\">Facebook</a>, or follow us on <a href=\"https://twitter.com/bbcearth\" target=\"_blank\">Twitter</a> and <a href=\"https://instagram.com/bbcearth/\" target=\"_blank\">Instagram</a>.</em></p><p><em>If you liked this story, <a href=\"http://pages.emails.bbc.com/subscribe/?ocid=ear.bbc.email.we.email-signup\" target=\"_blank\">sign up for the weekly bbc.com features newsletter</a> called \"If You Only Read 5 Things This Week\". A handpicked selection of stories from BBC Future, Earth, Culture, Capital and Travel, delivered to your inbox every Friday.</em></p>","BusinessUnit":"worldwide","CalloutBody":"","CalloutPosition":"","CalloutSubtitle":"","CalloutTitle":"","Campaign":null,"Collection":[],"DisableAdverts":false,"DisplayDate":"2017-02-28T09:30:00Z","Geolocation":null,"HeadlineLong":"This video explains why we cannot go faster than light","HeadlineShort":"Why we cannot go faster than light","HideRelated":false,"Horizontal":null,"Intro":"The Universe has a speed limit and it seems there is no way around it","IsSyndicated":true,"Location":null,"Option":null,"Partner":null,"PrimaryVertical":"wwearth","Programme":null,"RelatedStory":[],"RelatedTag":[],"StoryType":"video","SummaryLong":"The Universe has a speed limit and it seems there is no way around it","SummaryShort":"The reason for the cosmic speed limit","SuperSection":null,"Tag":[]},"Metadata":{"CreationDateTime":"2017-02-28T09:42:20.64428Z","Entity":"story","Guid":"3e5b13fd-abbd-48b9-8d41-972c0434c84d","Id":"wwearth/story/20170228-why-cant-we-go-faster-than-light","ModifiedDateTime":"2017-02-28T09:42:20.64428Z","Project":"wwearth","Slug":"20170228-why-cant-we-go-faster-than-light"},"Urn":"urn:pubstack:jative:story:wwearth/story/20170228-why-cant-we-go-faster-than-light","_id":"5981d3a8543960df95df70aa"},{"Content":{"AssetCustom":"","AssetIbroadcast":null,"AssetImage":[],"AssetImagePromo":null,"AssetInfographic":"","AssetInline":null,"AssetSelect":"ib2video","AssetVideoIb2":[],"AssetVideoMps":null,"Author":null,"BodyHtml":"<p>There are more planets in our galaxy than there are stars, says science writer and astrophysicist <a href=\"http://freelanceastrophysicist.com/\">Adam Becker</a>. He explains what these \"exoplanets\" are like to BBC Earth's Melissa Hogenboom and Michael Marshall, with help from the animators at <strong>Pomona Pictures</strong>.</p><p><em>Join over six million BBC Earth fans by liking us on <a href=\"https://www.facebook.com/bbcearth\" target=\"_blank\">Facebook</a>, or follow us on <a href=\"https://twitter.com/bbcearth\" target=\"_blank\">Twitter</a> and <a href=\"https://instagram.com/bbcearth/\" target=\"_blank\">Instagram</a>.</em></p><p><em>If you liked this story, <a href=\"http://pages.emails.bbc.com/subscribe/?ocid=ear.bbc.email.we.email-signup\" target=\"_blank\">sign up for the weekly bbc.com features newsletter</a> called \"If You Only Read 5 Things This Week\". A handpicked selection of stories from BBC Future, Earth, Culture, Capital and Travel, delivered to your inbox every Friday.</em></p>","BusinessUnit":"worldwide","CalloutBody":"","CalloutPosition":"","CalloutSubtitle":"","CalloutTitle":"","Campaign":null,"Collection":[],"DisableAdverts":false,"DisplayDate":"2017-02-20T11:30:00Z","Geolocation":null,"HeadlineLong":"The Earth-like planets we have found may not be like Earth","HeadlineShort":"We have found 'Earth-like' planets","HideRelated":false,"Horizontal":null,"Intro":"We have found plenty of apparently \"Earth-like\" worlds beyond our solar system, but that does not mean they are living worlds like ours","IsSyndicated":true,"Location":null,"Option":null,"Partner":null,"PrimaryVertical":"wwearth","Programme":null,"RelatedStory":[],"RelatedTag":[],"StoryType":"video","SummaryLong":"We have found plenty of apparently \"Earth-like\" worlds beyond our solar system, but that does not mean they are living worlds like ours","SummaryShort":"But they may not look much like our world","SuperSection":null,"Tag":[]},"Metadata":{"CreationDateTime":"2017-02-20T11:19:34.40576Z","Entity":"story","Guid":"ca5a69bd-b787-4b89-8f63-763a844f2e1d","Id":"wwearth/story/20170220-the-earth-like-planets-we-have-found-may-not-be-like-earth","ModifiedDateTime":"2017-02-21T14:43:37.375985Z","Project":"wwearth","Slug":"20170220-the-earth-like-planets-we-have-found-may-not-be-like-earth"},"Urn":"urn:pubstack:jative:story:wwearth/story/20170220-the-earth-like-planets-we-have-found-may-not-be-like-earth","_id":"5981d3a5543960df95df6edb"}],"RelatedTag":[{"Content":{"AssetImage":null,"Description":"","LinkUrl":"","Name":"Physics"},"Metadata":{"CreationDateTime":"2014-11-05T16:17:17Z","Entity":"tag","Guid":"6e9f0e97-66ce-4f69-bed7-82ed4ab69aa1","Id":"tag/physics","ModifiedDateTime":"2015-09-03T09:10:14.283862Z","Project":"","Slug":"physics"},"Urn":"urn:pubstack:jative:tag:tag/physics","_id":"5981d40a543960df95dfa48d"}],"StoryType":"video","SummaryLong":"About 95% of the cosmos cannot be seen by any telescopes, because it is made of mysterious \"dark matter\" and \"dark energy\" that do not interact with light","SummaryShort":"About 95% of the cosmos cannot be seen","SuperSection":null,"Tag":[{"Content":{"AssetImage":null,"Description":"","LinkUrl":"","Name":"Space","CreationDateTime":"2014-09-02T14:02:02Z","Entity":"tag","Guid":"0dde5e36-9628-4922-a41e-823f38715f34","Id":"tag/space","ModifiedDateTime":"2015-09-03T09:04:07.217588Z","Project":"","Slug":"space"},"Metadata":{"CreationDateTime":"2014-09-02T14:02:02Z","Entity":"tag","Guid":"0dde5e36-9628-4922-a41e-823f38715f34","Id":"tag/space","ModifiedDateTime":"2015-09-03T09:04:07.217588Z","Project":"","Slug":"space"},"Urn":"urn:pubstack:jative:tag:tag/space","_id":"5981d40b543960df95dfa5af"}],"CreationDateTime":"2017-03-16T10:10:35.614602Z","Entity":"story","Guid":"4cd14f0d-196a-4167-803b-80a910a63742","Id":"wwearth/story/20170315-why-almost-all-of-the-universe-is-utterly-invisible","ModifiedDateTime":"2017-03-16T10:10:35.614602Z","Project":"wwearth","Slug":"20170315-why-almost-all-of-the-universe-is-utterly-invisible"},"Metadata":{"CreationDateTime":"2017-03-16T10:10:35.614602Z","Entity":"story","Guid":"4cd14f0d-196a-4167-803b-80a910a63742","Id":"wwearth/story/20170315-why-almost-all-of-the-universe-is-utterly-invisible","ModifiedDateTime":"2017-03-16T10:10:35.614602Z","Project":"wwearth","Slug":"20170315-why-almost-all-of-the-universe-is-utterly-invisible"},"Urn":"urn:pubstack:jative:story:wwearth/story/20170315-why-almost-all-of-the-universe-is-utterly-invisible","_id":"59824a3f543960df95dff798"},{"Content":{"AssetCustom":"","AssetIbroadcast":null,"AssetImage":[{"Content":{"FileSizeBytes":1243475,"MimeType":"image/jpeg","SourceHeight":1080,"SourceUrl":"https://web.archive.org/web/20170804082830/https://s3-eu-west-1.amazonaws.com/live-galileo-interface-mt-resources-imagebucket-1a92e5tj3b5d6/p0/4v/pf/p04vpfh1.jpg","SourceWidth":1920,"SynopsisLong":"The sky is dark at night, but why? (Credit: CBW/Alamy)","SynopsisMedium":"The sky is dark at night, but why? (Credit: CBW/Alamy)","SynopsisShort":"The sky is dark at night, but why? (Credit: CBW/Alamy)","TemplateUrl":"https://web.archive.org/web/20170804082830/http://ichef.bbci.co.uk/wwfeatures/$recipe/images/live/p0/4v/pf/p04vpfh1.jpg","Title":"H3N7D6-dark_sky_Milky_Way-CBW-Alamy.jpg","CreationDateTime":"0001-01-01T00:00:00Z","Entity":"","Guid":"","Id":"p04vpfh1","ModifiedDateTime":"0001-01-01T00:00:00Z","Project":"","Slug":""},"Metadata":{"CreationDateTime":"0001-01-01T00:00:00Z","Entity":"","Guid":"","Id":"p04vpfh1","ModifiedDateTime":"0001-01-01T00:00:00Z","Project":"","Slug":""},"Urn":"urn:pubstack:jative:image:p04vpfh1","_id":"5981d317543960df95df19c0"}],"AssetImagePromo":null,"AssetInfographic":"","AssetInline":null,"AssetSelect":"ib2video","AssetVideoIb2":[{"Duration":340,"Metadata":{"CreationDateTime":"0001-01-01T00:00:00Z","Entity":"videopid","Guid":"","Id":"p04vpcrw","ModifiedDateTime":"0001-01-01T00:00:00Z","Project":"","Slug":""},"Thumbnail":[],"Title":"Why is the sky dark at night?","Urn":"urn:pubstack:jative:videopid:p04vpcrw","Vpid":"p04vpcry","_id":"5981d41b543960df95dfb3aa"}],"AssetVideoMps":null,"Author":null,"BodyHtml":"<p>Science writer and astrophysicist <a href=\"http://freelanceastrophysicist.com/\">Adam Becker</a> explains why the sky is dark at night to BBC Earth's <a href=\"https://twitter.com/m_c_marshall\">Michael Marshall</a>, with help from the animators at <strong>Pomona Pictures</strong>.</p><p><em>Join over six million BBC Earth fans by liking us on <a href=\"https://www.facebook.com/bbcearth\" target=\"_blank\">Facebook</a>, or follow us on <a href=\"https://twitter.com/bbcearth\" target=\"_blank\">Twitter</a> and <a href=\"https://instagram.com/bbcearth/\" target=\"_blank\">Instagram</a>.</em></p><p><em>If you liked this story, <a href=\"http://pages.emails.bbc.com/subscribe/?ocid=ear.bbc.email.we.email-signup\" target=\"_blank\">sign up for the weekly bbc.com features newsletter</a> called \"If You Only Read 6 Things This Week\". A handpicked selection of stories from BBC Future, Earth, Culture, Capital and Travel, delivered to your inbox every Friday.</em></p>","BusinessUnit":"worldwide","CalloutBody":"","CalloutPosition":"","CalloutSubtitle":"","CalloutTitle":"","Campaign":null,"Collection":[{"Content":{"AssetImage":[],"Campaign":null,"CollectionOverrides":null,"CollectionType":"column","Description":"Hot videos, that our audiences just loved to share","Name":"Video","Partner":null,"PrimaryVertical":"wwearth","Title":"Video","CreationDateTime":"2015-08-31T16:03:52.592676Z","Entity":"collection","Guid":"12cc46ca-2839-468b-bc28-b5ac25ee7298","Id":"wwearth/column/video","ModifiedDateTime":"2015-09-03T15:08:15.392647Z","Project":"wwearth","Slug":"column/video"},"Metadata":{"CreationDateTime":"2015-08-31T16:03:52.592676Z","Entity":"collection","Guid":"12cc46ca-2839-468b-bc28-b5ac25ee7298","Id":"wwearth/column/video","ModifiedDateTime":"2015-09-03T15:08:15.392647Z","Project":"wwearth","Slug":"column/video"},"Urn":"urn:pubstack:jative:collection:wwearth/column/video","_id":"5981d0e5543960df95ddec99"},{"Content":{"AssetImage":[],"Campaign":null,"CollectionOverrides":null,"CollectionType":"column","Description":"The biggest questions about life, the universe and everything - and how to answer them","Name":"The Big Questions","Partner":null,"PrimaryVertical":"wwearth","Title":"The Big Questions"},"Metadata":{"CreationDateTime":"2015-08-31T16:08:19.672121Z","Entity":"collection","Guid":"b223f348-1133-4674-aa14-89c671bab02b","Id":"wwearth/column/the-big-questions","ModifiedDateTime":"2015-09-03T15:02:18.264474Z","Project":"wwearth","Slug":"column/the-big-questions"},"Urn":"urn:pubstack:jative:collection:wwearth/column/the-big-questions","_id":"5981d0e5543960df95ddec51"}],"DisableAdverts":false,"DisplayDate":"2017-03-07T09:42:13.266Z","Geolocation":null,"HeadlineLong":"The fact the sky is dark reveals a lot about the Universe","HeadlineShort":"Why the sky is dark at night","HideRelated":false,"Horizontal":null,"Intro":"It may seem utterly obvious that the sky is dark, but in fact it seems to give rise to a peculiar paradox about the cosmos","IsSyndicated":true,"Location":null,"Option":null,"Partner":null,"PrimaryVertical":"wwearth","Programme":null,"RelatedStory":[{"Content":{"AssetCustom":"","AssetIbroadcast":null,"AssetImage":[],"AssetImagePromo":null,"AssetInfographic":"","AssetInline":null,"AssetSelect":"ib2video","AssetVideoIb2":[],"AssetVideoMps":null,"Author":null,"BodyHtml":"<p>Science writer and astrophysicist <a href=\"http://freelanceastrophysicist.com/\">Adam Becker</a> explains why we cannot go faster than light to BBC Earth's <a href=\"https://twitter.com/melissasuzanneh\">Melissa Hogenboom</a> and <a href=\"https://twitter.com/m_c_marshall\">Michael Marshall</a>, with help from the animators at <strong>Pomona Pictures</strong>.</p><p><em>Join over six million BBC Earth fans by liking us on <a href=\"https://www.facebook.com/bbcearth\" target=\"_blank\">Facebook</a>, or follow us on <a href=\"https://twitter.com/bbcearth\" target=\"_blank\">Twitter</a> and <a href=\"https://instagram.com/bbcearth/\" target=\"_blank\">Instagram</a>.</em></p><p><em>If you liked this story, <a href=\"http://pages.emails.bbc.com/subscribe/?ocid=ear.bbc.email.we.email-signup\" target=\"_blank\">sign up for the weekly bbc.com features newsletter</a> called \"If You Only Read 5 Things This Week\". A handpicked selection of stories from BBC Future, Earth, Culture, Capital and Travel, delivered to your inbox every Friday.</em></p>","BusinessUnit":"worldwide","CalloutBody":"","CalloutPosition":"","CalloutSubtitle":"","CalloutTitle":"","Campaign":null,"Collection":[],"DisableAdverts":false,"DisplayDate":"2017-02-28T09:30:00Z","Geolocation":null,"HeadlineLong":"This video explains why we cannot go faster than light","HeadlineShort":"Why we cannot go faster than light","HideRelated":false,"Horizontal":null,"Intro":"The Universe has a speed limit and it seems there is no way around it","IsSyndicated":true,"Location":null,"Option":null,"Partner":null,"PrimaryVertical":"wwearth","Programme":null,"RelatedStory":[],"RelatedTag":[],"StoryType":"video","SummaryLong":"The Universe has a speed limit and it seems there is no way around it","SummaryShort":"The reason for the cosmic speed limit","SuperSection":null,"Tag":[]},"Metadata":{"CreationDateTime":"2017-02-28T09:42:20.64428Z","Entity":"story","Guid":"3e5b13fd-abbd-48b9-8d41-972c0434c84d","Id":"wwearth/story/20170228-why-cant-we-go-faster-than-light","ModifiedDateTime":"2017-02-28T09:42:20.64428Z","Project":"wwearth","Slug":"20170228-why-cant-we-go-faster-than-light"},"Urn":"urn:pubstack:jative:story:wwearth/story/20170228-why-cant-we-go-faster-than-light","_id":"5981d3a8543960df95df70aa"},{"Content":{"AssetCustom":"","AssetIbroadcast":null,"AssetImage":[],"AssetImagePromo":null,"AssetInfographic":"","AssetInline":null,"AssetSelect":"ib2video","AssetVideoIb2":[],"AssetVideoMps":null,"Author":null,"BodyHtml":"<p>There are more planets in our galaxy than there are stars, says science writer and astrophysicist <a href=\"http://freelanceastrophysicist.com/\">Adam Becker</a>. He explains what these \"exoplanets\" are like to BBC Earth's Melissa Hogenboom and Michael Marshall, with help from the animators at <strong>Pomona Pictures</strong>.</p><p><em>Join over six million BBC Earth fans by liking us on <a href=\"https://www.facebook.com/bbcearth\" target=\"_blank\">Facebook</a>, or follow us on <a href=\"https://twitter.com/bbcearth\" target=\"_blank\">Twitter</a> and <a href=\"https://instagram.com/bbcearth/\" target=\"_blank\">Instagram</a>.</em></p><p><em>If you liked this story, <a href=\"http://pages.emails.bbc.com/subscribe/?ocid=ear.bbc.email.we.email-signup\" target=\"_blank\">sign up for the weekly bbc.com features newsletter</a> called \"If You Only Read 5 Things This Week\". A handpicked selection of stories from BBC Future, Earth, Culture, Capital and Travel, delivered to your inbox every Friday.</em></p>","BusinessUnit":"worldwide","CalloutBody":"","CalloutPosition":"","CalloutSubtitle":"","CalloutTitle":"","Campaign":null,"Collection":[],"DisableAdverts":false,"DisplayDate":"2017-02-20T11:30:00Z","Geolocation":null,"HeadlineLong":"The Earth-like planets we have found may not be like Earth","HeadlineShort":"We have found 'Earth-like' planets","HideRelated":false,"Horizontal":null,"Intro":"We have found plenty of apparently \"Earth-like\" worlds beyond our solar system, but that does not mean they are living worlds like ours","IsSyndicated":true,"Location":null,"Option":null,"Partner":null,"PrimaryVertical":"wwearth","Programme":null,"RelatedStory":[],"RelatedTag":[],"StoryType":"video","SummaryLong":"We have found plenty of apparently \"Earth-like\" worlds beyond our solar system, but that does not mean they are living worlds like ours","SummaryShort":"But they may not look much like our world","SuperSection":null,"Tag":[]},"Metadata":{"CreationDateTime":"2017-02-20T11:19:34.40576Z","Entity":"story","Guid":"ca5a69bd-b787-4b89-8f63-763a844f2e1d","Id":"wwearth/story/20170220-the-earth-like-planets-we-have-found-may-not-be-like-earth","ModifiedDateTime":"2017-02-21T14:43:37.375985Z","Project":"wwearth","Slug":"20170220-the-earth-like-planets-we-have-found-may-not-be-like-earth"},"Urn":"urn:pubstack:jative:story:wwearth/story/20170220-the-earth-like-planets-we-have-found-may-not-be-like-earth","_id":"5981d3a5543960df95df6edb"},{"Content":{"AssetCustom":"","AssetIbroadcast":null,"AssetImage":[],"AssetImagePromo":null,"AssetInfographic":"","AssetInline":null,"AssetSelect":"ib2video","AssetVideoIb2":[],"AssetVideoMps":null,"Author":null,"BodyHtml":"<p>The Universe can expand without there being anything outside it for it to expand into, says science writer and astrophysicist <a href=\"http://freelanceastrophysicist.com/\">Adam Becker</a>. He explains this mind-bending idea to BBC Earth's Michael Marshall and Melissa Hogenboom, with help from the animators at <strong>Pomona Pictures</strong>.</p><p><em>Join over six million BBC Earth fans by liking us on <a href=\"https://www.facebook.com/bbcearth\" target=\"_blank\">Facebook</a>, or follow us on <a href=\"https://twitter.com/bbcearth\" target=\"_blank\">Twitter</a> and <a href=\"https://instagram.com/bbcearth/\" target=\"_blank\">Instagram</a>.</em></p><p><em>If you liked this story, <a href=\"http://pages.emails.bbc.com/subscribe/?ocid=ear.bbc.email.we.email-signup\" target=\"_blank\">sign up for the weekly bbc.com features newsletter</a> called \"If You Only Read 6 Things This Week\". A handpicked selection of stories from BBC Future, Earth, Culture, Capital, Travel and Autos, delivered to your inbox every Friday.</em></p>","BusinessUnit":"worldwide","CalloutBody":"","CalloutPosition":"","CalloutSubtitle":"","CalloutTitle":"","Campaign":null,"Collection":[],"DisableAdverts":false,"DisplayDate":"2017-02-13T07:00:00Z","Geolocation":null,"HeadlineLong":"How the Universe can expand if there is no extra space","HeadlineShort":"What is the Universe expanding into?","HideRelated":false,"Horizontal":null,"Intro":"The Universe has been expanding ever since the Big Bang, but what is it expanding into?","IsSyndicated":true,"Location":null,"Option":null,"Partner":null,"PrimaryVertical":"wwearth","Programme":null,"RelatedStory":[],"RelatedTag":[],"StoryType":"video","SummaryLong":"The Universe has been expanding ever since the Big Bang, but what is it expanding into?","SummaryShort":"After all, there is no extra space","SuperSection":null,"Tag":[]},"Metadata":{"CreationDateTime":"2017-02-13T07:00:15.828236Z","Entity":"story","Guid":"ba37c2db-6772-4253-a29d-8b70ca905c95","Id":"wwearth/story/20170210-how-the-universe-can-expand-if-there-is-no-extra-space","ModifiedDateTime":"2017-02-13T10:56:11.80797Z","Project":"wwearth","Slug":"20170210-how-the-universe-can-expand-if-there-is-no-extra-space"},"Urn":"urn:pubstack:jative:story:wwearth/story/20170210-how-the-universe-can-expand-if-there-is-no-extra-space","_id":"5981e6b5543960df95dfc248"}],"RelatedTag":[{"Content":{"AssetImage":null,"Description":"","LinkUrl":"","Name":"Space"},"Metadata":{"CreationDateTime":"2014-09-02T14:02:02Z","Entity":"tag","Guid":"0dde5e36-9628-4922-a41e-823f38715f34","Id":"tag/space","ModifiedDateTime":"2015-09-03T09:04:07.217588Z","Project":"","Slug":"space"},"Urn":"urn:pubstack:jative:tag:tag/space","_id":"5981d40b543960df95dfa5af"}],"StoryType":"video","SummaryLong":"It may seem utterly obvious that the sky is dark, but in fact it seems to give rise to a peculiar paradox about the cosmos","SummaryShort":"It may seem obvious, but the dark sky tells us a lot about the Universe","SuperSection":null,"Tag":[{"Content":{"AssetImage":null,"Description":"","LinkUrl":"","Name":"Physics","CreationDateTime":"2014-11-05T16:17:17Z","Entity":"tag","Guid":"6e9f0e97-66ce-4f69-bed7-82ed4ab69aa1","Id":"tag/physics","ModifiedDateTime":"2015-09-03T09:10:14.283862Z","Project":"","Slug":"physics"},"Metadata":{"CreationDateTime":"2014-11-05T16:17:17Z","Entity":"tag","Guid":"6e9f0e97-66ce-4f69-bed7-82ed4ab69aa1","Id":"tag/physics","ModifiedDateTime":"2015-09-03T09:10:14.283862Z","Project":"","Slug":"physics"},"Urn":"urn:pubstack:jative:tag:tag/physics","_id":"5981d40a543960df95dfa48d"}],"CreationDateTime":"2017-03-07T09:43:35.25304Z","Entity":"story","Guid":"de1c9861-52c3-4170-8aa6-3ca6dd137646","Id":"wwearth/story/20170307-the-fact-the-sky-is-dark-reveals-a-lot-about-the-universe","ModifiedDateTime":"2017-03-07T09:43:35.25304Z","Project":"wwearth","Slug":"20170307-the-fact-the-sky-is-dark-reveals-a-lot-about-the-universe"},"Metadata":{"CreationDateTime":"2017-03-07T09:43:35.25304Z","Entity":"story","Guid":"de1c9861-52c3-4170-8aa6-3ca6dd137646","Id":"wwearth/story/20170307-the-fact-the-sky-is-dark-reveals-a-lot-about-the-universe","ModifiedDateTime":"2017-03-07T09:43:35.25304Z","Project":"wwearth","Slug":"20170307-the-fact-the-sky-is-dark-reveals-a-lot-about-the-universe"},"Urn":"urn:pubstack:jative:story:wwearth/story/20170307-the-fact-the-sky-is-dark-reveals-a-lot-about-the-universe","_id":"5983289a543960df95e06a0c"}],"RelatedTag":[{"Content":{"AssetImage":null,"Description":"","LinkUrl":"","Name":"Universe"},"Metadata":{"CreationDateTime":"2014-09-02T14:03:15Z","Entity":"tag","Guid":"46dd8487-4d26-4943-bbc3-f43ee6c0a529","Id":"tag/universe","ModifiedDateTime":"2015-09-03T09:07:52.535982Z","Project":"","Slug":"universe"},"Urn":"urn:pubstack:jative:tag:tag/universe","_id":"5981d410543960df95dfaa02"}],"StoryType":"video","SummaryLong":"Everything around us is made of atoms, but it turns out that the building blocks of the Universe are far stranger than that","SummaryShort":"They are the building blocks of everything","SuperSection":null,"Tag":[{"Content":{"AssetImage":null,"Description":"","LinkUrl":"","Name":"Physics","CreationDateTime":"2014-11-05T16:17:17Z","Entity":"tag","Guid":"6e9f0e97-66ce-4f69-bed7-82ed4ab69aa1","Id":"tag/physics","ModifiedDateTime":"2015-09-03T09:10:14.283862Z","Project":"","Slug":"physics"},"Metadata":{"CreationDateTime":"2014-11-05T16:17:17Z","Entity":"tag","Guid":"6e9f0e97-66ce-4f69-bed7-82ed4ab69aa1","Id":"tag/physics","ModifiedDateTime":"2015-09-03T09:10:14.283862Z","Project":"","Slug":"physics"},"Urn":"urn:pubstack:jative:tag:tag/physics","_id":"5981d40a543960df95dfa48d"}],"CreationDateTime":"2017-04-05T06:00:02.120533Z","Entity":"story","Guid":"b1b28fa2-46a2-45c7-97be-323b21ca2bab","Id":"wwearth/story/20170404-the-physics-that-tells-us-what-the-universe-is-made-of","ModifiedDateTime":"2017-04-05T09:04:39.342439Z","Project":"wwearth","Slug":"20170404-the-physics-that-tells-us-what-the-universe-is-made-of"},"Metadata":{"CreationDateTime":"2017-04-05T06:00:02.120533Z","Entity":"story","Guid":"b1b28fa2-46a2-45c7-97be-323b21ca2bab","Id":"wwearth/story/20170404-the-physics-that-tells-us-what-the-universe-is-made-of","ModifiedDateTime":"2017-04-05T09:04:39.342439Z","Project":"wwearth","Slug":"20170404-the-physics-that-tells-us-what-the-universe-is-made-of"},"Urn":"urn:pubstack:jative:story:wwearth/story/20170404-the-physics-that-tells-us-what-the-universe-is-made-of","_id":"5982fca5543960df95e053c2"}}, _routes={"column-index":{"route":"/earth/columns/:page:","entity-mapping":"wwearth/collection/column","rules":{"page":"isNumeric"}},"column-results":{"route":"/earth/columns/{id}/:page:","entity-mapping":"wwearth/column/{id}","rules":{"id":"isValidId","page":"isNumeric"}},"story":{"route":"/earth/story/{id}:?query:","entity-mapping":"wwearth/story/{id}","rules":{"id":"isValidId"},"cross-domain":true},"story-preview":{"route":"/earth/preview/story/{guid}:?query:","entity-mapping":"wwearth/story-preview/{guid}","cross-domain":true},"tag-index":{"route":"/earth/tags/:page:","entity-mapping":"wwearth/tag-index","rules":{"page":"isNumeric"}},"tag":{"route":"/earth/tags/{id}/:page:","entity-mapping":"tag/{id}","rules":{"id":"isValidId","page":"isNumeric"}},"native-story":{"route":"/earth/sponsored/story/{id}","entity-mapping":"wwearth/native-story/{id}","rules":{"id":"isValidId"},"cross-domain":true},"native-story-preview":{"route":"/earth/preview/sponsored/story/{guid}:?query:","entity-mapping":"wwearth/native-story-preview/{guid}","cross-domain":true},"native-column":{"route":"/earth/sponsored/{id}/:page:","entity-mapping":"wwearth/native-column/{id}","rules":{"id":"isValidId","page":"isNumeric"}},"search":{"route":"/earth/search/:keywords:/:page:","entity-mapping":"wwearth/search/{keywords}","rules":{"page":"isNumeric"}},"slideshow-gallery":{"route":"/earth/gallery/{id}:?query:","entity-mapping":"wwearth/slideshow-gallery/{id}","rules":{"id":"isValidId"},"cross-domain":true},"slideshow-gallery-alt":{"route":"/earth/slideshow-gallery/{id}:?query:","entity-mapping":"wwearth/slideshow-gallery/{id}","rules":{"id":"isValidId"},"cross-domain":true},"future-now":{"route":"/earth/now","entity-mapping":"wwearth/supersection/future-now","cross-domain":true},"untold-world":{"route":"/earth/untold-world","entity-mapping":"wwearth/supersection/untold-world","cross-domain":true},"article-third-party-content":{"route":"/earth/article/{id}:?query:","entity-mapping":"wwearth/thirdpartycontent/{id}","rules":{"id":"isValidId"},"cross-domain":true},"article-story":{"route":"/earth/article/{id}:?query:","entity-mapping":"wwearth/story/{id}","rules":{"id":"isValidId"},"cross-domain":true},"article-slideshow-gallery":{"route":"/earth/article/{id}:?query:","entity-mapping":"wwearth/slideshow-gallery/{id}","rules":{"id":"isValidId"},"cross-domain":true},"section-index":{"route":"/earth/sections/:page:","entity-mapping":"wwearth/collection/section","rules":{"page":"isNumeric"}},"section-results":{"route":"/earth/sections/{id}/:page:","entity-mapping":"wwearth/section/{id}","rules":{"id":"isValidId","page":"isNumeric"}},"front-page":{"route":"/earth/world/:page:","entity-mapping":"wwearth/front-page","rules":{"page":"isNumeric"}},"front-page-redirect":{"route":"/earth/","entity-mapping":"wwearth/front-page","rules":{}},"sol-player":{"route":"/earth/storyoflife/player:?query:","entity-mapping":"storyoflife/player","rules":{"?query":"isValidSOLQuery"}},"sol-catch-page":{"route":"/earth/storyoflife:/::?query:","entity-mapping":"storyoflife/app","rules":{"?query":"isValidSOLQuery"}},"wwfuture-story":{"route":"/future/story/{id}:?query:","entity-mapping":"wwfuture/story/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwculture-story":{"route":"/culture/story/{id}:?query:","entity-mapping":"wwculture/story/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwtravel-story":{"route":"/travel/story/{id}:?query:","entity-mapping":"wwtravel/story/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwautos-story":{"route":"/autos/story/{id}:?query:","entity-mapping":"wwautos/story/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwcapital-story":{"route":"/capital/story/{id}:?query:","entity-mapping":"wwcapital/story/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwfuture-story-preview":{"route":"/future/preview/story/{guid}:?query:","entity-mapping":"wwfuture/story-preview/{guid}","cross-domain":true},"wwculture-story-preview":{"route":"/culture/preview/story/{guid}:?query:","entity-mapping":"wwculture/story-preview/{guid}","cross-domain":true},"wwtravel-story-preview":{"route":"/travel/preview/story/{guid}:?query:","entity-mapping":"wwtravel/story-preview/{guid}","cross-domain":true},"wwautos-story-preview":{"route":"/autos/preview/story/{guid}:?query:","entity-mapping":"wwautos/story-preview/{guid}","cross-domain":true},"wwcapital-story-preview":{"route":"/capital/preview/story/{guid}:?query:","entity-mapping":"wwcapital/story-preview/{guid}","cross-domain":true},"wwfuture-native-story":{"route":"/future/sponsored/story/{id}","entity-mapping":"wwfuture/native-story/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwculture-native-story":{"route":"/culture/sponsored/story/{id}","entity-mapping":"wwculture/native-story/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwtravel-native-story":{"route":"/travel/sponsored/story/{id}","entity-mapping":"wwtravel/native-story/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwautos-native-story":{"route":"/autos/sponsored/story/{id}","entity-mapping":"wwautos/native-story/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwcapital-native-story":{"route":"/capital/sponsored/story/{id}","entity-mapping":"wwcapital/native-story/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwfuture-native-story-preview":{"route":"/future/preview/sponsored/story/{guid}:?query:","entity-mapping":"wwfuture/native-story-preview/{guid}","cross-domain":true},"wwculture-native-story-preview":{"route":"/culture/preview/sponsored/story/{guid}:?query:","entity-mapping":"wwculture/native-story-preview/{guid}","cross-domain":true},"wwtravel-native-story-preview":{"route":"/travel/preview/sponsored/story/{guid}:?query:","entity-mapping":"wwtravel/native-story-preview/{guid}","cross-domain":true},"wwautos-native-story-preview":{"route":"/autos/preview/sponsored/story/{guid}:?query:","entity-mapping":"wwautos/native-story-preview/{guid}","cross-domain":true},"wwcapital-native-story-preview":{"route":"/capital/preview/sponsored/story/{guid}:?query:","entity-mapping":"wwcapital/native-story-preview/{guid}","cross-domain":true},"wwfuture-slideshow-gallery":{"route":"/future/gallery/{id}:?query:","entity-mapping":"wwfuture/slideshow-gallery/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwculture-slideshow-gallery":{"route":"/culture/gallery/{id}:?query:","entity-mapping":"wwculture/slideshow-gallery/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwtravel-slideshow-gallery":{"route":"/travel/gallery/{id}:?query:","entity-mapping":"wwtravel/slideshow-gallery/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwautos-slideshow-gallery":{"route":"/autos/gallery/{id}:?query:","entity-mapping":"wwautos/slideshow-gallery/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwcapital-slideshow-gallery":{"route":"/capital/gallery/{id}:?query:","entity-mapping":"wwcapital/slideshow-gallery/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwfuture-slideshow-gallery-alt":{"route":"/future/slideshow-gallery/{id}:?query:","entity-mapping":"wwfuture/slideshow-gallery/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwculture-slideshow-gallery-alt":{"route":"/culture/slideshow-gallery/{id}:?query:","entity-mapping":"wwculture/slideshow-gallery/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwtravel-slideshow-gallery-alt":{"route":"/travel/slideshow-gallery/{id}:?query:","entity-mapping":"wwtravel/slideshow-gallery/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwautos-slideshow-gallery-alt":{"route":"/autos/slideshow-gallery/{id}:?query:","entity-mapping":"wwautos/slideshow-gallery/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwcapital-slideshow-gallery-alt":{"route":"/capital/slideshow-gallery/{id}:?query:","entity-mapping":"wwcapital/slideshow-gallery/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwfuture-future-now":{"route":"/future/now","entity-mapping":"wwfuture/supersection/future-now","cross-domain":true},"wwculture-future-now":{"route":"/culture/now","entity-mapping":"wwculture/supersection/future-now","cross-domain":true},"wwtravel-future-now":{"route":"/travel/now","entity-mapping":"wwtravel/supersection/future-now","cross-domain":true},"wwautos-future-now":{"route":"/autos/now","entity-mapping":"wwautos/supersection/future-now","cross-domain":true},"wwcapital-future-now":{"route":"/capital/now","entity-mapping":"wwcapital/supersection/future-now","cross-domain":true},"wwfuture-untold-world":{"route":"/future/untold-world","entity-mapping":"wwfuture/supersection/untold-world","cross-domain":true},"wwculture-untold-world":{"route":"/culture/untold-world","entity-mapping":"wwculture/supersection/untold-world","cross-domain":true},"wwtravel-untold-world":{"route":"/travel/untold-world","entity-mapping":"wwtravel/supersection/untold-world","cross-domain":true},"wwautos-untold-world":{"route":"/autos/untold-world","entity-mapping":"wwautos/supersection/untold-world","cross-domain":true},"wwcapital-untold-world":{"route":"/capital/untold-world","entity-mapping":"wwcapital/supersection/untold-world","cross-domain":true},"wwfuture-article-third-party-content":{"route":"/future/article/{id}:?query:","entity-mapping":"wwfuture/thirdpartycontent/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwculture-article-third-party-content":{"route":"/culture/article/{id}:?query:","entity-mapping":"wwculture/thirdpartycontent/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwtravel-article-third-party-content":{"route":"/travel/article/{id}:?query:","entity-mapping":"wwtravel/thirdpartycontent/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwautos-article-third-party-content":{"route":"/autos/article/{id}:?query:","entity-mapping":"wwautos/thirdpartycontent/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwcapital-article-third-party-content":{"route":"/capital/article/{id}:?query:","entity-mapping":"wwcapital/thirdpartycontent/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwfuture-article-story":{"route":"/future/article/{id}:?query:","entity-mapping":"wwfuture/story/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwculture-article-story":{"route":"/culture/article/{id}:?query:","entity-mapping":"wwculture/story/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwtravel-article-story":{"route":"/travel/article/{id}:?query:","entity-mapping":"wwtravel/story/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwautos-article-story":{"route":"/autos/article/{id}:?query:","entity-mapping":"wwautos/story/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwcapital-article-story":{"route":"/capital/article/{id}:?query:","entity-mapping":"wwcapital/story/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwfuture-article-slideshow-gallery":{"route":"/future/article/{id}:?query:","entity-mapping":"wwfuture/slideshow-gallery/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwculture-article-slideshow-gallery":{"route":"/culture/article/{id}:?query:","entity-mapping":"wwculture/slideshow-gallery/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwtravel-article-slideshow-gallery":{"route":"/travel/article/{id}:?query:","entity-mapping":"wwtravel/slideshow-gallery/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwautos-article-slideshow-gallery":{"route":"/autos/article/{id}:?query:","entity-mapping":"wwautos/slideshow-gallery/{id}","rules":{"id":"isValidId"},"cross-domain":true},"wwcapital-article-slideshow-gallery":{"route":"/capital/article/{id}:?query:","entity-mapping":"wwcapital/slideshow-gallery/{id}","rules":{"id":"isValidId"},"cross-domain":true}}, _comscoreKeyValues=false, isMobileDevice=function(){ var user_agent = navigator.userAgent, mobile=/Mobile|iP(hone|od|ad)|Android|BlackBerry|IEMobile|Kindle|NetFront|Silk-Accelerated|(hpw|web)OS|Fennec|Minimo|Opera M(obi|ini)|Blazer|Dolfin|Dolphin|Skyfire|Zune/; return mobile.test(user_agent); }, loadCss = function (url) { var link = document.createElement("link"); link.type = "text/css"; link.rel = "stylesheet"; link.href = url; document.getElementsByTagName("head")[0].appendChild(link); }, hasTheMustard = function (){ if(('querySelector' in document && 'localStorage' in window && 'addEventListener' in window)) { return true; } return false; }, isWebKit =function(){ if(RegExp(" AppleWebKit/").test(navigator.userAgent)){ return true; } return false; }, hasFixedWidthLayout= function (){ return isIE8; }, removeNoJsClass = function(){ var bodyTag = document.getElementsByTagName('body'); var container; if (bodyTag.length > 0) { bodyTag[0].className = bodyTag[0].className.replace(new RegExp('no-js', 'g'), ''); } if(container=document.getElementById('wwfeatures-container')){ container.className =""; } }, requireConfig; requireConfig={ baseUrl: 'https://web.archive.org/web/20170804082830/http://www.bbc.com/earth/static/80639ec75e40/scripts/requirejs/', paths:{ 'mapboxgl-supported': '//web.archive.org/web/20170804082830/http://api.mapbox.com/mapbox-gl-js/plugins/mapbox-gl-supported/v1.2.0/mapbox-gl-supported', mapboxgl: '../../components/mapboxgl/mapbox-gl', mapboxjs: '//web.archive.org/web/20170804082830/http://api.mapbox.com/mapbox.js/v3.0.1/mapbox', 'requestLoader':'service/client-request-loader', 'templates':'wwearth/templates' }, shim: { mapboxjs: { exports: 'L' } } }; _comscoreKeyValues = {"c2":"19774467","ns_site":"bbc","name":"bbc_-_earth_-_the_physics_that_tells_us_what_the_universe_is_made_of","b_vs_un":"bc","c7":"https://web.archive.org/web/20170804082830/http://www.bbc.com/earth/story/20170404-the-physics-that-tells-us-what-the-universe-is-made-of","b_c7":"https://web.archive.org/web/20170804082830/http://www.bbc.com/earth/story/20170404-the-physics-that-tells-us-what-the-universe-is-made-of","c8":"bbc_-_earth_-_the_physics_that_tells_us_what_the_universe_is_made_of","b_app_type":"web","b_app_name":"earth|rc43","b_code_ver":"rc43","b_imp_ver":"rc43","b_imp_src":"wwf","b_site_section":"column.video","b_site_channel":"earth","b_site_subsec1":"video","b_edition":"international","b_column":"video","b_page_type":"sty|vid","b_article_title":"the physics that tells us what the universe is made of","b_article_id":"wwearth/story/20170404-the-physics-that-tells-us-what-the-universe-is-made-of","b_article_theme":"physics","b_article_date":"1491372002120","b_article_update":"1491372002120","b_article_length":"432"}; require(requireConfig); </script>  <script> window.onload = removeNoJsClass; var availableStyles = [ 'responsive-core', 'sol-core', 'video-playlist-player', 'cultural-calender', 'weather', 'slideshow-gallery', 'tpc', 'super-section', 'maps' ]; if(hasTheMustard()){ for(var ctr=0;ctr<availableStyles.length;ctr++){ loadCss('https://web.archive.org/web/20170804082830/http://www.bbc.com/earth/static/80639ec75e40/css/wwearth/'+availableStyles[ctr]+'.css'); } } </script> <script type="text/javascript"> var Logger={ debug: function () { }, info: function () { }, warn: function () { }, error: function () { } } require(['util/logger'],function(logger){ logger.useDefaults(); if((typeof digitalData !=="undefined")&& (digitalData.environment=="sandbox")){ logger.setLevel(logger.DEBUG); } else { logger.setLevel(logger.INFO); } window.Logger=logger; }); if (Function.prototype.bind && window.console && typeof console.log == "object"){ [ "log","info","warn","error","assert","dir","clear","profile","profileEnd" ].forEach(function (method) { console[method] = this.bind(console[method], console); }, Function.prototype.call); } </script><script type="text/javascript"> if ((typeof bbcdotcom != "undefined") && (typeof bbcdotcom.setConfig != 'undefined')){ bbcdotcom.setConfig({ siteCatalystEnabled: false, comScoreEnabled: false }); } window.advertising={"adsDisabled":false,"keywords":{"pageType":"story","STORY":"1","asset_type":"story","media":"video","tags":"physics","destination":"","column":"video","sectn":"video"},"adUnit":"bbcearth.com/earth_column_video_tags_physics_content","adSlots":{"parallax":{"groups":"1_2_3_4","jsonGroups":"[1,2,3,4]","id":"parallax","async":true},"leaderboard":{"groups":"1_2_3_4","jsonGroups":"[1,2,3,4]","id":"leaderboard","async":true},"leaderboard-1_2_3":{"id":"leaderboard","groups":"1_2_3","jsonGroups":"[1,2,3]","async":true},"leaderboard-4":{"id":"leaderboard","groups":"4","jsonGroups":"[4]","async":true},"mpu-1_2_3":{"id":"mpu","groups":"1_2_3","jsonGroups":"[1,2,3]","async":true},"mpu-4":{"id":"mpu","groups":"4","jsonGroups":"[4]","async":true},"mpu-1_2":{"id":"mpu","groups":"1_2","jsonGroups":"[1,2]","async":true},"mpu-3_4":{"id":"mpu","groups":"3_4","jsonGroups":"[3,4]","async":true},"mpu_bottom":{"groups":"1_2_3_4","jsonGroups":"[1,2,3,4]","id":"mpu_bottom","async":true},"native_side":{"groups":"1_2_3_4","jsonGroups":"[1,2,3,4]","id":"native_side","async":true},"native_responsive":{"groups":"1_2_3_4","jsonGroups":"[1,2,3,4]","id":"native_responsive","async":true},"ad_feature_rc":{"groups":"1_2_3_4","jsonGroups":"[1,2,3,4]","id":"ad_feature_rc","async":true},"promo_feature_responsive":{"groups":"1_2_3_4","jsonGroups":"[1,2,3,4]","id":"promo_feature_responsive","async":true},"promo_feature_1":{"groups":"1_2_3_4","jsonGroups":"[1,2,3,4]","id":"promo_feature_1","async":true},"promo_feature_2":{"groups":"1_2_3_4","jsonGroups":"[1,2,3,4]","id":"promo_feature_2","async":true},"promo_feature_3":{"groups":"1_2_3_4","jsonGroups":"[1,2,3,4]","id":"promo_feature_3","async":true},"responsive_box_1":{"groups":"1_2_3_4","jsonGroups":"[1,2,3,4]","id":"responsive_box_1","async":true},"responsive_box_2":{"groups":"1_2_3_4","jsonGroups":"[1,2,3,4]","id":"responsive_box_2","async":true,"deferred":true},"verticalnavbar":{"groups":"1_2_3_4","jsonGroups":"[1,2,3,4]","id":"verticalnavbar","async":true},"sponsor-section-content":{"id":"sponsor_section","groups":"1_2_3_4","text":"IN ASSOCIATION WITH","jsonGroups":"[1,2,3,4]","async":true}},"async":true,"adsToDisplay":["parallax","leaderboard","mpu","mpu_bottom","native_side","native_responsive","ad_feature_rc","promo_feature_responsive","promo_feature_1","promo_feature_2","promo_feature_3","responsive_box_1","verticalnavbar","sponsor_section"]}; try{ if((typeof window.bbcdotcom != 'undefined') && (typeof bbcdotcom.setAdUnit != 'undefined') && (typeof bbcdotcom.init != 'undefined') && (typeof bbcdotcom.setAdKeyValue != 'undefined')){ for(var keyword in window.advertising.keywords) { bbcdotcom.setAdKeyValue(keyword,window.advertising.keywords[keyword]); } bbcdotcom.setAdUnit(window.advertising.adUnit); bbcdotcom.init({ asyncEnabled: true, "adsToDisplay":window.advertising.adsToDisplay }); } } catch (err) { Logger.error(err); } </script> <script type="text/javascript"> var _sf_startpt=(new Date()).getTime(); </script>  </head> <body class="no-js"> <div id="bbccom_interstitial_ad" class="bbccom_display_none"></div><div id="bbccom_interstitial" class="bbccom_display_none"><script type="text/javascript"> /*<![CDATA[*/ (function() { if (window.bbcdotcom && bbcdotcom.config.isActive('ads')) { googletag.cmd.push(function() { googletag.display('bbccom_interstitial'); }); } }()); /*]]>*/ </script></div><div id="bbccom_wallpaper_ad" class="bbccom_display_none"></div><div id="bbccom_wallpaper" class="bbccom_display_none"><script type="text/javascript"> /*<![CDATA[*/ (function() { var wallpaper; if (window.bbcdotcom && bbcdotcom.config.isActive('ads')) { if (bbcdotcom.config.isAsync()) { googletag.cmd.push(function() { googletag.display('bbccom_wallpaper'); }); } else { googletag.display("wallpaper"); } wallpaper = bbcdotcom.adverts.adRegister.getAd('wallpaper'); } }()); /*]]>*/ </script></div><script type="text/javascript"> /*<![CDATA[*/ (function() { if (window.bbcdotcom && bbcdotcom.config.isActive('ads')) { document.write(unescape('%3Cscript id="gnlAdsEnabled" class="bbccom_display_none"%3E%3C/script%3E')); } if (window.bbcdotcom && bbcdotcom.config.isActive('analytics')) { document.write(unescape('%3Cscript id="gnlAnalyticsEnabled" class="bbccom_display_none"%3E%3C/script%3E')); } }()); /*]]>*/ </script><script type="text/javascript"> /*<![CDATA[*/ (function() { window.bbcdotcom.bodyFirst = true; }()); /*]]>*/ </script> <div id="blq-global"> <div id="blq-pre-mast"> </div> </div> <script type="text/html" id="blq-bbccookies-tmpl"><![CDATA[ <section> <div id="bbccookies" class="bbccookies-banner orb-banner-wrapper bbccookies-d"> <div id="bbccookies-prompt" class="orb-banner b-g-p b-r b-f"> <h2 class="orb-banner-title"> Cookies on the BBC website </h2> <p class="orb-banner-content" dir="ltr"> The BBC has updated its cookie policy. We use cookies to ensure that we give you the best experience on our website. This includes cookies from third party social media websites if you visit a page which contains embedded content from social media. Such third party cookies may track your use of the BBC website.<span class="bbccookies-international-message"> We and our partners also use cookies to ensure we show you advertising that is relevant to you.</span> If you continue without changing your settings, we'll assume that you are happy to receive all cookies on the BBC website. However, you can change your cookie settings at any time. </p> <ul class="orb-banner-options"> <li id="bbccookies-continue"> <button type="button" id="bbccookies-continue-button">Continue</button> </li> <li id="bbccookies-settings"> <a href="/privacy/cookies/managing/cookie-settings.html">Change settings</a> </li> <li id="bbccookies-more"><a href="/privacy/cookies/bbc">Find out more</a></li></ul> </div> </div> </section> ]]></script> <script type="text/javascript">/*<![CDATA[*/ (function(){if(bbccookies._showPrompt()){var g=document,b=g.getElementById("blq-pre-mast"),e=g.getElementById("blq-bbccookies-tmpl"),a,f;if(b&&g.createElement){a=g.createElement("div");f=e.innerHTML;f=f.replace("<"+"![CDATA[","").replace("]]"+">","");a.innerHTML=f;b.appendChild(a);blqCookieContinueButton=g.getElementById("bbccookies-continue-button");blqCookieContinueButton.onclick=function(){a.parentNode.removeChild(a);return false};bbccookies._setPolicy(bbccookies.readPolicy())}var c=g.getElementById("bbccookies");if(c&&!window.orb.fig("uk")){c.className=c.className.replace(/\bbbccookies-d\b/,"");c.className=c.className+(" bbccookies-w")}}})(); /*]]>*/</script> <noscript><p style="position: absolute; top: -999em"><img src="https://web.archive.org/web/20170804082830im_/https://sa.bbc.co.uk/bbc/bbc/s?name=earth.story.20170404-the-physics-that-tells-us-what-the-universe-is-made-of.page&ml_name=webmodule&ml_version=72&blq_js_enabled=0&blq_s=4d&blq_r=2.7&blq_v=default&blq_e=pal&pal_route=webserviceapi&app_type=responsive&language=en-GB&pal_webapp=barlesque&prod_name=frameworks&app_name=frameworks" height="1" width="1" alt=""></p></noscript>  <script type="text/javascript">/*<![CDATA[*/ if (typeof bbccookies !== 'undefined' && bbccookies.isAllowed('s1')) { (function () { require(['istats-1'], function (istats) { istatsTrackingUrl = istats.getDefaultURL(); if (istats.isEnabled() && bbcFlagpoles_istats === 'ON') { sitestat(istatsTrackingUrl); } else { window.ns_pixelUrl = istatsTrackingUrl; /* used by Flash library to track */ } function sitestat(n) { var j = document, f = j.location, b = ""; if (j.cookie.indexOf("st_ux=") != -1) { var k = j.cookie.split(";"); var e = "st_ux", h = document.domain, a = "/"; if (typeof ns_ != "undefined" && typeof ns_.ux != "undefined") { e = ns_.ux.cName || e; h = ns_.ux.cDomain || h; a = ns_.ux.cPath || a } for (var g = 0, f = k.length; g < f; g++) { var m = k[g].indexOf("st_ux="); if (m != -1) { b = "&" + decodeURI(k[g].substring(m + 6)) } } bbccookies.set(e + "=; expires=" + new Date(new Date().getTime() - 60).toGMTString() + "; path=" + a + "; domain=" + h); } window.ns_pixelUrl = n; } }); })(); } else { window.istats = {enabled: false}; } /*]]>*/</script>   <header id="orb-banner" role="banner">   <div id="orb-header" class="orb-nav-pri orb-nav-pri-white b-header--white--black orb-nav-empty"> <div class="orb-nav-pri-container b-r b-g-p"> <div class="orb-nav-section orb-nav-blocks"> <a href="/web/20170804082830/http://www.bbc.com/"> <img src="https://web.archive.org/web/20170804082830im_/http://static.bbci.co.uk/frameworks/barlesque/3.21.24/orb/4/img/bbc-blocks-dark.png" width="84" height="24" alt="BBC"/> </a> </div> <section> <div class="orb-skip-links"> <h2>Accessibility links</h2> <ul> <li><a id="orb-accessibility-help" href="/web/20170804082830/http://www.bbc.com/accessibility/">Accessibility Help</a></li> </ul> </div> </section> <div id="mybbc-wrapper" class="orb-nav-section orb-nav-id orb-nav-focus"> <div id="idcta-statusbar" class="orb-nav-section orb-nav-focus"> <a id="idcta-link" href="https://web.archive.org/web/20170804082830/https://account.bbc.com/account"> <span id="idcta-username">BBC iD</span> </a> </div> <script type="text/javascript"> require(['idcta/statusbar'], function(statusbar) { new statusbar.Statusbar({"id":"idcta-statusbar","publiclyCacheable":true}); }); </script> <a id="notification-link" class="js-notification-link animated three" href="#"> <span class="hidden-span">Notifications</span> <div class="notification-link--triangle"></div> <div class="notification-link--triangle"></div> <span id="not-num"></span> </a> </div> <nav role="navigation" class="orb-nav"> <div class="orb-nav-section orb-nav-links orb-nav-focus" id="orb-nav-links"> <h2>BBC navigation</h2> <ul> <li class="orb-nav-home orb-d"> <a href="https://web.archive.org/web/20170804082830/http://www.bbc.co.uk/">Home</a> </li> <li class="orb-nav-homedotcom orb-w"> <a href="https://web.archive.org/web/20170804082830/http://www.bbc.com/">Home</a> </li> <li class="orb-nav-news orb-d"> <a href="https://web.archive.org/web/20170804082830/http://www.bbc.co.uk/news">News</a> </li> <li class="orb-nav-newsdotcom orb-w"> <a href="https://web.archive.org/web/20170804082830/http://www.bbc.com/news">News</a> </li> <li class="orb-nav-sport"> <a href="/web/20170804082830/http://www.bbc.com/sport/">Sport</a> </li> <li class="orb-nav-weather"> <a href="/web/20170804082830/http://www.bbc.com/weather/">Weather</a> </li> <li class="orb-nav-shop orb-w"> <a href="https://web.archive.org/web/20170804082830/http://shop.bbc.com/">Shop</a> </li> <li class="orb-nav-earthdotcom orb-w"> <a href="https://web.archive.org/web/20170804082830/http://www.bbc.com/earth/">Earth</a> </li> <li class="orb-nav-travel-dotcom orb-w"> <a href="https://web.archive.org/web/20170804082830/http://www.bbc.com/travel/">Travel</a> </li> <li class="orb-nav-capital orb-w"> <a href="https://web.archive.org/web/20170804082830/http://www.bbc.com/capital/">Capital</a> </li> <li class="orb-nav-iplayer orb-d"> <a href="/web/20170804082830/http://www.bbc.com/iplayer/">iPlayer</a> </li> <li class="orb-nav-culture orb-w"> <a href="https://web.archive.org/web/20170804082830/http://www.bbc.com/culture/">Culture</a> </li> <li class="orb-nav-autos orb-w"> <a href="https://web.archive.org/web/20170804082830/http://www.bbc.com/autos/">Autos</a> </li> <li class="orb-nav-future orb-w"> <a href="https://web.archive.org/web/20170804082830/http://www.bbc.com/future/">Future</a> </li> <li class="orb-nav-tv"> <a href="/web/20170804082830/http://www.bbc.com/tv/">TV</a> </li> <li class="orb-nav-radio"> <a href="/web/20170804082830/http://www.bbc.com/radio/">Radio</a> </li> <li class="orb-nav-cbbc"> <a href="/web/20170804082830/http://www.bbc.com/cbbc">CBBC</a> </li> <li class="orb-nav-cbeebies"> <a href="/web/20170804082830/http://www.bbc.com/cbeebies">CBeebies</a> </li> <li class="orb-nav-food"> <a href="/web/20170804082830/http://www.bbc.com/food/">Food</a> </li> <li> <a href="/web/20170804082830/http://www.bbc.com/iwonder">iWonder</a> </li> <li> <a href="/web/20170804082830/http://www.bbc.com/education">Bitesize</a> </li> <li class="orb-nav-travel orb-d"> <a href="/web/20170804082830/http://www.bbc.com/travel/">Travel</a> </li> <li class="orb-nav-music"> <a href="/web/20170804082830/http://www.bbc.com/music/">Music</a> </li> <li class="orb-nav-earth orb-d"> <a href="https://web.archive.org/web/20170804082830/http://www.bbc.com/earth/">Earth</a> </li> <li class="orb-nav-arts"> <a href="/web/20170804082830/http://www.bbc.com/arts/">Arts</a> </li> <li class="orb-nav-makeitdigital"> <a href="/web/20170804082830/http://www.bbc.com/makeitdigital">Make It Digital</a> </li> <li> <a href="/web/20170804082830/http://www.bbc.com/taster">Taster</a> </li> <li class="orb-nav-nature orb-w"> <a href="/web/20170804082830/http://www.bbc.com/nature/">Nature</a> </li> <li class="orb-nav-local"> <a href="/web/20170804082830/http://www.bbc.com/local/">Local</a> </li> <li id="orb-nav-more"><a href="#orb-footer" data-alt="More">Menu<span class="orb-icon orb-icon-arrow"></span></a></li> </ul> </div> </nav> <div class="orb-nav-section orb-nav-search"> <a class="orb-search__button" href="https://web.archive.org/web/20170804082830/http://search.bbc.co.uk/search" title="Search the BBC">Search</a> <form class="b-f" id="orb-search-form" role="search" method="get" action="//web.archive.org/web/20170804082830/http://search.bbc.co.uk/search" accept-charset="utf-8"> <div> <label for="orb-search-q">Search the BBC</label> <input id="orb-search-q" type="text" autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false" name="q" placeholder="Search"> <button id="orb-search-button" class="orb-search__button">Search the BBC</button> <input type="hidden" name="suggid" id="orb-search-suggid"/> </div> </form> </div> </div> <div id="orb-panels"> <script type="text/template" id="orb-panel-template"><![CDATA[ <div id="orb-panel-<%= panelname %>" class="orb-panel" aria-labelledby="orb-nav-<%= panelname %>"> <div class="orb-panel-content b-g-p b-r"> <%= panelcontent %> </div> </div> ]]></script> </div> </div> </header>  <div id="orb-modules"> <div id="content-wrapper"> <div id="wwfeatures-container">  <div id="story-page-container" class="article-page-container"> <div id="version" class=""> <div id="bbccom_leaderboard_1_2_3_4" class="bbccom_slot" aria-hidden="true"> <div class="bbccom_advert"> <script type="text/javascript"> /*<![CDATA[*/ if (window.bbcdotcom && bbcdotcom.slotAsync) { bbcdotcom.slotAsync('leaderboard', [1,2,3,4]); } /*]]>*/ </script> </div> </div>  <div id="nav-branding-wrapper"> <div id="nav-branding">  <div id="branding"> <div id="branding-top"> <div class="branding-left"></div> <div class="branding-right"></div> </div> </div> <div class="site-brand"> <div class="site-brand-lining"> <a href="/web/20170804082830/http://www.bbc.com/earth" id="brand">Earth</a> <a id="sections-nav-button" href="#nav-bottom" role=".navigation" aria-label="secondary"> <span class="icon-sections"></span><span class="title-sections">Menu</span> </a> </div> </div>  <div id="nav-top"> <div class="navigation-wrapper " data-cs-module="navigation"> <ul class="navigation-list" role="navigation" aria-label=""> <li class=" first"> <a href="/web/20170804082830/http://www.bbc.com/earth/world" class="navigation-link" data-cs-id="nav-0" data-cs-event="click" data-cs-element-name="Home"> <div class="line1">Home </div> </a> </li> <li class=""> <a href="/web/20170804082830/http://www.bbc.com/earth/columns/attenboroughs-story-of-life" class="navigation-link" data-cs-id="nav-1" data-cs-event="click" data-cs-element-name="Attenborough's Story of Life"> <div class="line1">Attenborough's Story of Life </div> </a> </li> <li class=""> <a href="/web/20170804082830/http://www.bbc.com/earth/columns/the-big-questions" class="navigation-link" data-cs-id="nav-2" data-cs-event="click" data-cs-element-name="Big Questions"> <div class="line1">Big Questions </div> </a> </li> <li class=""> <a href="/web/20170804082830/http://www.bbc.com/earth/columns/discoveries " class="navigation-link" data-cs-id="nav-3" data-cs-event="click" data-cs-element-name="Discoveries"> <div class="line1">Discoveries </div> </a> </li> <li class=""> <a href="/web/20170804082830/http://www.bbc.com/earth/columns/video" class="navigation-link" data-cs-id="nav-4" data-cs-event="click" data-cs-element-name="Video"> <div class="line1">Video </div> </a> </li> <li class=""> <a href="https://web.archive.org/web/20170804082830/https://pages.s6.exacttarget.com/page.aspx?QS=38dfbe491fab00ea37b48fbad871a432a781c2e2dbd234649e2ab4fb3968988f" class="navigation-link" data-cs-id="nav-5" data-cs-event="click" data-cs-element-name="Earth by email"> <div class="line1">Earth by email </div> </a> </li> <li class=""> <a href="https://web.archive.org/web/20170804082830/http://www.bbc.com/earth/story/20160419-about-us" class="navigation-link" data-cs-id="nav-6" data-cs-event="click" data-cs-element-name="About us"> <div class="line1">About us </div> </a> </li> <li class="featured featured-native last"> <div id="bbccom_verticalnavbar_1_2_3_4" class="bbccom_slot" aria-hidden="true"> <div class="bbccom_advert"> <script type="text/javascript"> /*<![CDATA[*/ if (window.bbcdotcom && bbcdotcom.slotAsync) { bbcdotcom.slotAsync('verticalnavbar', [1,2,3,4]); } /*]]>*/ </script> </div> </div> </li> </ul> </div> </div> </div> </div> <div id="page"> <div id="page-lining">   <div id="story-page" class=" story-type-video">  <div class="hero-unit hero-unit-video" data-hero-unit="true"> <div class="hero-unit-image-wrapper"> <div class="responsive-image-wrapper"> <img data-fixed-width-format="wwfeatures-1280-640" width="130" height="73" title="Particle physics tells us what the world is made of (Credit: Science Photo Library/Alamy)" alt="Particle physics tells us what the world is made of (Credit: Science Photo Library/Alamy)" class="responsive-hero" data-caption="Particle physics tells us what the world is made of (Credit: Science Photo Library/Alamy)" data-caption-title="" src="https://web.archive.org/web/20170804082830im_/http://ichef.bbci.co.uk/wwfeatures/wm/live/130_73/images/live/p0/4z/0q/p04z0qvq.jpg" data-landscape/> </div> </div> <div class="hero-unit-overlay"> <div class="hero-unit-image-overlay-1"></div> <div class="hero-unit-image-overlay-2"></div> <div class="hero-unit-image-overlay-3"></div> </div> <div class="hero-unit-lining"> <div class="hero-unit-header-wrapper"> <a href="#" id="play-video" class="hero-video-icon"> <span id="" class="icon-wrapper gel-icon-wrapper icon-wrapper-play"> <i aria-hidden="true" class="gelicon gelicon--play"></i> </span> </a> <div class="secondary-header-wrapper"> </div> </div> </div> </div>  <div id="story-content" class="page-component-wrapper standard article-content"> <div id="video-lead-wrapper" class="disabled"> <div id="video-lead-asset" class=" video-player" data-video-player data-video-title="The physics that tells us what the Universe is made of" data-video-player-vpid="p04yy2zt" data-video-player-mediator="mc" data-brand-color="#008e9b" data-video-player-image-url="http://ichef.bbci.co.uk/wwfeatures/live/224_125/images/live/p0/4z/0q/p04z0qvq.jpg" data-show-ads="true"> <noscript> <div class="warning"> <p><strong>This media cannot be played on your device.</strong></p> </div> </noscript> </div></div>  <div class="primary-content" role="main"> <div class="mpu-wrapper"> <div id="bbccom_mpu_1_2_3" class="bbccom_slot" aria-hidden="true"> <div class="bbccom_advert"> <script type="text/javascript"> /*<![CDATA[*/ if (window.bbcdotcom && bbcdotcom.slotAsync) { bbcdotcom.slotAsync('mpu', [1,2,3]); } /*]]>*/ </script> </div> </div> </div> <div class="clearfix"> <div id="bbccom_sponsor_section_1_2_3_4" class="bbccom_slot" aria-hidden="true"> <div class="bbccom_advert"> <script type="text/javascript"> /*<![CDATA[*/ if (window.bbcdotcom && bbcdotcom.slotAsync) { bbcdotcom.slotAsync('sponsor_section', [1,2,3,4], false, 'IN ASSOCIATION WITH'); } /*]]>*/ </script> </div> </div> </div>  <div class="primary-content-lining">  <div class="top-unit"> <div class="primary-header-wrapper"> <div class="primary-header primary-header-with-context"> <ul class="seperated-list context-heading-list"> <li class="seperated-list-item"> <span class="context-heading"> <a href="/web/20170804082830/http://www.bbc.com/earth/columns/video" title="View Video"> Video</a> </span> </li> <li class="seperated-list-item"> <span class="context-heading"> <a href="/web/20170804082830/http://www.bbc.com/earth/tags/physics" title="View Physics"> Physics</a> </span> </li> </ul> <h1 class="primary-heading" role="heading">The physics that tells us what the Universe is made of</h1> </div> </div> <div class="introduction-wrapper"> <p class="introduction">Everything around us is made of atoms, but it turns out that the building blocks of the Universe are far stranger than that</p> </div> <div id="share-tools-top"> <ul class="share share--mobile small share--article"> <li class="share-item"> <div class="share-item-lining"> <a class="share-button facebook" href="https://web.archive.org/web/20170804082830/https://www.facebook.com/sharer/sharer.php?u=http%3A%2F%2Fwww.bbc.com%2Fearth%2Fstory%2F20170404-the-physics-that-tells-us-what-the-universe-is-made-of%3Focid%3Dww.social.link.facebook&t=The%20physics%20that%20tells%20us%20what%20the%20Universe%20is%20made%20of" data-share-destination="facebook" data-tracking-id="facebook" target="_blank"> <span class="share-icon-wrapper share-icon-wrapper--social"> <span class="icon gelicon--facebook"></span> </span> <span class="share-item-text">Share on Facebook</span> </a> </div> </li> <li class="share-item"> <div class="share-item-lining"> <a class="share-button twitter" href="https://web.archive.org/web/20170804082830/https://twitter.com/intent/tweet?text=The%20physics%20that%20tells%20us%20what%20the%20Universe%20is%20made%20of&url=http%3A%2F%2Fwww.bbc.com%2Fearth%2Fstory%2F20170404-the-physics-that-tells-us-what-the-universe-is-made-of%3Focid%3Dww.social.link.twitter&via=BBCEarth" data-share-destination="twitter" data-tracking-id="twitter" target="_blank"> <span class="share-icon-wrapper share-icon-wrapper--social"> <span class="icon gelicon--twitter"></span> </span> <span class="share-item-text">Share on Twitter</span> </a> </div> </li> <li class="share-item"> <div class="share-item-lining"> <a class="share-button reddit" href="https://web.archive.org/web/20170804082830/https://www.reddit.com/submit?url=http%3A%2F%2Fwww.bbc.com%2Fearth%2Fstory%2F20170404-the-physics-that-tells-us-what-the-universe-is-made-of%3Focid%3Dww.social.link.reddit&title=The%20physics%20that%20tells%20us%20what%20the%20Universe%20is%20made%20of" data-share-destination="reddit" data-tracking-id="reddit" target="_blank"> <span class="share-icon-wrapper share-icon-wrapper--social"> <span class="icon gelicon--reddit"></span> </span> <span class="share-item-text">Share on Reddit</span> </a> </div> </li> <li class="share-item"> <div class="share-item-lining"> <a class="share-button whatsapp" href="https://web.archive.org/web/20170804082830/whatsapp://send/?text=The%20physics%20that%20tells%20us%20what%20the%20Universe%20is%20made%20of: http%3A%2F%2Fwww.bbc.com%2Fearth%2Fstory%2F20170404-the-physics-that-tells-us-what-the-universe-is-made-of%3Focid%3Dww.social.link.whatsapp" data-share-destination="whatsapp" data-tracking-id="whatsapp" target="_blank"> <span class="share-icon-wrapper share-icon-wrapper--social"> <span class="icon gelicon--whatsapp"></span> </span> <span class="share-item-text">Share on WhatsApp</span> </a> </div> </li> <li class="share-item"> <div class="share-item-lining"> <a class="share-button google" href="https://web.archive.org/web/20170804082830/https://plus.google.com/share?url=http%3A%2F%2Fwww.bbc.com%2Fearth%2Fstory%2F20170404-the-physics-that-tells-us-what-the-universe-is-made-of%3Focid%3Dww.social.link.googleplus" data-share-destination="google" data-tracking-id="google" target="_blank"> <span class="share-icon-wrapper share-icon-wrapper--social"> <span class="icon gelicon--google-plus"></span> </span> <span class="share-item-text">Share on Google+</span> </a> </div> </li> <li class="share-item"> <div class="share-item-lining"> <a class="share-button email" href="https://web.archive.org/web/20170804082830/mailto:/?subject=Shared from BBC:The%20physics%20that%20tells%20us%20what%20the%20Universe%20is%20made%20of&body=http%3A%2F%2Fwww.bbc.com%2Fearth%2Fstory%2F20170404-the-physics-that-tells-us-what-the-universe-is-made-of%3Focid%3Dww.social.link.email" data-share-destination="email" data-tracking-id="email" target="_blank"> <span class="share-icon-wrapper share-icon-wrapper--social"> <span class="icon gelicon--mail"></span> </span> <span class="share-item-text">Share by Email</span> </a> </div> </li></ul> <ul class="share share--desktop small share--article"> <li class="share-item"> <div class="share-item-lining"> <a class="share-button facebook" href="https://web.archive.org/web/20170804082830/https://www.facebook.com/sharer/sharer.php?u=http%3A%2F%2Fwww.bbc.com%2Fearth%2Fstory%2F20170404-the-physics-that-tells-us-what-the-universe-is-made-of%3Focid%3Dww.social.link.facebook&t=The%20physics%20that%20tells%20us%20what%20the%20Universe%20is%20made%20of" data-share-destination="facebook" data-tracking-id="facebook" target="_blank"> <span class="share-icon-wrapper share-icon-wrapper--social"> <span class="icon gelicon--facebook"></span> </span> <span class="share-item-text">Share on Facebook</span> </a> </div> </li> <li class="share-item"> <div class="share-item-lining"> <a class="share-button twitter" href="https://web.archive.org/web/20170804082830/https://twitter.com/intent/tweet?text=The%20physics%20that%20tells%20us%20what%20the%20Universe%20is%20made%20of&url=http%3A%2F%2Fwww.bbc.com%2Fearth%2Fstory%2F20170404-the-physics-that-tells-us-what-the-universe-is-made-of%3Focid%3Dww.social.link.twitter&via=BBCEarth" data-share-destination="twitter" data-tracking-id="twitter" target="_blank"> <span class="share-icon-wrapper share-icon-wrapper--social"> <span class="icon gelicon--twitter"></span> </span> <span class="share-item-text">Share on Twitter</span> </a> </div> </li> <li class="share-item"> <div class="share-item-lining"> <a class="share-button reddit" href="https://web.archive.org/web/20170804082830/https://www.reddit.com/submit?url=http%3A%2F%2Fwww.bbc.com%2Fearth%2Fstory%2F20170404-the-physics-that-tells-us-what-the-universe-is-made-of%3Focid%3Dww.social.link.reddit&title=The%20physics%20that%20tells%20us%20what%20the%20Universe%20is%20made%20of" data-share-destination="reddit" data-tracking-id="reddit" target="_blank"> <span class="share-icon-wrapper share-icon-wrapper--social"> <span class="icon gelicon--reddit"></span> </span> <span class="share-item-text">Share on Reddit</span> </a> </div> </li> <li class="share-item"> <div class="share-item-lining"> <a class="share-button stumbleupon" href="https://web.archive.org/web/20170804082830/http://www.stumbleupon.com/submit?url=http%3A%2F%2Fwww.bbc.com%2Fearth%2Fstory%2F20170404-the-physics-that-tells-us-what-the-universe-is-made-of%3Focid%3Dww.social.link.stumbleupon" data-share-destination="stumbleupon" data-tracking-id="stumbleupon" target="_blank"> <span class="share-icon-wrapper share-icon-wrapper--social"> <span class="icon gelicon--stumbleupon"></span> </span> <span class="share-item-text">Share on StumbleUpon</span> </a> </div> </li> <li class="share-item"> <div class="share-item-lining"> <a class="share-button google" href="https://web.archive.org/web/20170804082830/https://plus.google.com/share?url=http%3A%2F%2Fwww.bbc.com%2Fearth%2Fstory%2F20170404-the-physics-that-tells-us-what-the-universe-is-made-of%3Focid%3Dww.social.link.googleplus" data-share-destination="google" data-tracking-id="google" target="_blank"> <span class="share-icon-wrapper share-icon-wrapper--social"> <span class="icon gelicon--google-plus"></span> </span> <span class="share-item-text">Share on Google+</span> </a> </div> </li> <li class="share-item"> <div class="share-item-lining"> <a class="share-button email" href="https://web.archive.org/web/20170804082830/mailto:/?subject=Shared from BBC:The%20physics%20that%20tells%20us%20what%20the%20Universe%20is%20made%20of&body=http%3A%2F%2Fwww.bbc.com%2Fearth%2Fstory%2F20170404-the-physics-that-tells-us-what-the-universe-is-made-of%3Focid%3Dww.social.link.email" data-share-destination="email" data-tracking-id="email" target="_blank"> <span class="share-icon-wrapper share-icon-wrapper--social"> <span class="icon gelicon--mail"></span> </span> <span class="share-item-text">Share by Email</span> </a> </div> </li></ul> </div> </div>   <div class="mid-unit"> </div>   <div class="bottom-unit"> <div class="byline"> <span class="byline-heading"></span> <div class="source-attribution-wrapper"> <div class="source-attribution-detail"> <ul class="seperated-list source-attribution"> </ul> <span class="publication-date index-body">5 April 2017</span> </div> </div> </div> <div class="body-content"> <p>Science writer and astrophysicist <a href="https://web.archive.org/web/20170804082830/http://freelanceastrophysicist.com/">Adam Becker</a> explains what the Universe is made of to BBC Earth's <a href="https://web.archive.org/web/20170804082830/https://twitter.com/m_c_marshall" target="_blank">Michael Marshall</a> and <a href="https://web.archive.org/web/20170804082830/https://twitter.com/melissasuzanneh" target="_blank">Melissa Hogenboom</a>, with help from the animators at <strong>Pomona Pictures</strong>.</p><p><em>Join over six million BBC Earth fans by liking us on <a href="https://web.archive.org/web/20170804082830/https://www.facebook.com/bbcearth" target="_blank">Facebook</a>, or follow us on <a href="https://web.archive.org/web/20170804082830/https://twitter.com/bbcearth" target="_blank">Twitter</a> and <a href="https://web.archive.org/web/20170804082830/https://instagram.com/bbcearth/" target="_blank">Instagram</a>.</em></p><p><em>If you liked this story, <a href="https://web.archive.org/web/20170804082830/http://pages.emails.bbc.com/subscribe/?ocid=ear.bbc.email.we.email-signup" target="_blank">sign up for the weekly bbc.com features newsletter</a> called "If You Only Read 6 Things This Week". A handpicked selection of stories from BBC Future, Earth, Culture, Capital and Travel, delivered to your inbox every Friday.</em></p> </div> </div>  <div class="clearfix"></div> <section> <div id="share-tools-bottom"></div> </section> </div>  </div>   <div class="secondary-content"> <div class="mpu-wrapper"> <div id="bbccom_ad_feature_rc_1_2_3_4" class="bbccom_slot" aria-hidden="true"> <div class="bbccom_advert"> <script type="text/javascript"> /*<![CDATA[*/ if (window.bbcdotcom && bbcdotcom.slotAsync) { bbcdotcom.slotAsync('ad_feature_rc', [1,2,3,4]); } /*]]>*/ </script> </div> </div> </div> <div class="mpu-wrapper"> <div id="bbccom_mpu_4" class="bbccom_slot" aria-hidden="true"> <div class="bbccom_advert"> <script type="text/javascript"> /*<![CDATA[*/ if (window.bbcdotcom && bbcdotcom.slotAsync) { bbcdotcom.slotAsync('mpu', [4]); } /*]]>*/ </script> </div> </div> </div> <div class="mpu-wrapper"> <div id="bbccom_native_side_1_2_3_4" class="bbccom_slot" aria-hidden="true"> <div class="bbccom_advert"> <script type="text/javascript"> /*<![CDATA[*/ if (window.bbcdotcom && bbcdotcom.slotAsync) { bbcdotcom.slotAsync('native_side', [1,2,3,4]); } /*]]>*/ </script> </div> </div> </div> <div id="related-stories-secondary" class="component-placeholder related-stories"></div> <div id="weather-forecast-secondary" class="component-placeholder"></div> <div id="follow-us" class="headed-section "> <div class="headed-section-lining"> <header> <div class="section-header"> <div class="section-title-wrapper"> <h2 class="section-title">Follow BBC Earth</h2> </div> </div> </header> <div class="section-body"> <div class="headed-section-content"> <ul id="follow-us-items" class="" data-cs-module="follow-us"> <li class="follow-us-item follow-us-item-facebook"> <div class="follow-us-item-lining"> <a target="_blank" href="https://web.archive.org/web/20170804082830/https://www.facebook.com/BBCEarth" data-cs-id="follow-us-facebook" data-cs-event="click" data-cs-element-name="Facebook"> <div class="icon-wrapper"> <span class="icon gelicon--facebook"></span> </div> <div class="follow-us-item-text">Facebook</div> </a> </div> </li> <li class="follow-us-item follow-us-item-twitter"> <div class="follow-us-item-lining"> <a target="_blank" href="https://web.archive.org/web/20170804082830/https://twitter.com/BBCEarth" data-cs-id="follow-us-twitter" data-cs-event="click" data-cs-element-name="Twitter"> <div class="icon-wrapper"> <span class="icon gelicon--twitter"></span> </div> <div class="follow-us-item-text">Twitter</div> </a> </div> </li> <li class="follow-us-item follow-us-item-youtube"> <div class="follow-us-item-lining"> <a target="_blank" href="https://web.archive.org/web/20170804082830/https://www.youtube.com/user/BBCEarth" data-cs-id="follow-us-youtube" data-cs-event="click" data-cs-element-name="Youtube"> <div class="icon-wrapper"> <span class="icon gelicon--youtube"></span> </div> <div class="follow-us-item-text">Youtube</div> </a> </div> </li> <li class="follow-us-item follow-us-item-instagram"> <div class="follow-us-item-lining"> <a target="_blank" href="https://web.archive.org/web/20170804082830/http://instagram.com/bbcearth" data-cs-id="follow-us-instagram" data-cs-event="click" data-cs-element-name="Instagram"> <div class="icon-wrapper"> <span class="icon gelicon--instagram"></span> </div> <div class="follow-us-item-text">Instagram</div> </a> </div> </li> </ul> </div> </div> </div> </div> <div class="mpu-wrapper"> <div id="bbccom_promo_feature_1_1_2_3_4" class="bbccom_slot" aria-hidden="true"> <div class="bbccom_advert"> <script type="text/javascript"> /*<![CDATA[*/ if (window.bbcdotcom && bbcdotcom.slotAsync) { bbcdotcom.slotAsync('promo_feature_1', [1,2,3,4]); } /*]]>*/ </script> </div> </div> </div> <div id="best-of-secondary" class="component-placeholder best-of-list"></div> <div class="mpu-wrapper"> <div id="bbccom_mpu_bottom_1_2_3_4" class="bbccom_slot" aria-hidden="true"> <div class="bbccom_advert"> <script type="text/javascript"> /*<![CDATA[*/ if (window.bbcdotcom && bbcdotcom.slotAsync) { bbcdotcom.slotAsync('mpu_bottom', [1,2,3,4]); } /*]]>*/ </script> </div> </div> </div> </div>  </div> <div class="standalone-parallax-wrapper"> <div class="parallax-slot-wrapper"> <div id="bbccom_parallax_1_2_3_4" class="bbccom_slot" aria-hidden="true"> <div class="bbccom_advert"> <script type="text/javascript"> /*<![CDATA[*/ if (window.bbcdotcom && bbcdotcom.slotAsync) { bbcdotcom.slotAsync('parallax', [1,2,3,4]); } /*]]>*/ </script> </div> </div> </div> </div> <div class="page-component-wrapper"> <div class="single-column"> <div class="primary-content"> <div id="best-of-primary" class="component-placeholder best-of-list"></div> </div> </div> </div> <div class="page-component-wrapper"> <div class="single-column"> <div class="primary-content"> <div id="more-amazing-stories-primary" class="component-placeholder more-amazing-stories-list"></div> </div> </div> </div> </div>  <noscript> <div id="nav-bottom"> <div class="navigation-wrapper " data-cs-module="navigation"> <ul class="navigation-list" role="navigation" aria-label=""> <li class=" first"> <a href="/web/20170804082830/http://www.bbc.com/earth/world" class="navigation-link" data-cs-id="nav-0" data-cs-event="click" data-cs-element-name="Home"> <div class="line1">Home </div> </a> </li> <li class=""> <a href="/web/20170804082830/http://www.bbc.com/earth/columns/attenboroughs-story-of-life" class="navigation-link" data-cs-id="nav-1" data-cs-event="click" data-cs-element-name="Attenborough's Story of Life"> <div class="line1">Attenborough's Story of Life </div> </a> </li> <li class=""> <a href="/web/20170804082830/http://www.bbc.com/earth/columns/the-big-questions" class="navigation-link" data-cs-id="nav-2" data-cs-event="click" data-cs-element-name="Big Questions"> <div class="line1">Big Questions </div> </a> </li> <li class=""> <a href="/web/20170804082830/http://www.bbc.com/earth/columns/discoveries " class="navigation-link" data-cs-id="nav-3" data-cs-event="click" data-cs-element-name="Discoveries"> <div class="line1">Discoveries </div> </a> </li> <li class=""> <a href="/web/20170804082830/http://www.bbc.com/earth/columns/video" class="navigation-link" data-cs-id="nav-4" data-cs-event="click" data-cs-element-name="Video"> <div class="line1">Video </div> </a> </li> <li class=""> <a href="https://web.archive.org/web/20170804082830/https://pages.s6.exacttarget.com/page.aspx?QS=38dfbe491fab00ea37b48fbad871a432a781c2e2dbd234649e2ab4fb3968988f" class="navigation-link" data-cs-id="nav-5" data-cs-event="click" data-cs-element-name="Earth by email"> <div class="line1">Earth by email </div> </a> </li> <li class=""> <a href="https://web.archive.org/web/20170804082830/http://www.bbc.com/earth/story/20160419-about-us" class="navigation-link" data-cs-id="nav-6" data-cs-event="click" data-cs-element-name="About us"> <div class="line1">About us </div> </a> </li> <li class="featured featured-native last"> <div id="bbccom_verticalnavbar_1_2_3_4" class="bbccom_slot" aria-hidden="true"> <div class="bbccom_advert"> <script type="text/javascript"> /*<![CDATA[*/ if (window.bbcdotcom && bbcdotcom.slotAsync) { bbcdotcom.slotAsync('verticalnavbar', [1,2,3,4]); } /*]]>*/ </script> </div> </div> </li> </ul> </div> </div> </noscript> <div id="extra-footer" class="extra-footer" class="clearfix"> <div class="page-component-wrapper"> <div id="around-bbc" class="component-placeholder around-the-bbc"></div> </div> </div> </div> </div> </div> </div>  </div> </div> <script src="https://web.archive.org/web/20170804082830js_/http://static.bbcverticals.com/earth/config/live/story/20170404-the-physics-that-tells-us-what-the-universe-is-made-of/config.json"></script> <script> if(hasTheMustard()|| hasFixedWidthLayout()){ var requirePaths={}; if(isWebKit()){ requirePaths.jquery="https://web.archive.org/web/20170804082830/http://www.bbc.com/earth/static/80639ec75e40/components/jquery-modern/dist/jquery"; }else{ requirePaths.jquery= "https://web.archive.org/web/20170804082830/http://www.bbc.com/earth/static/80639ec75e40/components/jquery-legacy/jquery"; } require.config({ paths:requirePaths, shim: { 'selectivity': ['jquery'], 'actual': ['jquery'] } }); require(['wwearth/main'], function(App){ var myApp = new App(); } ); } </script> <script type="text/javascript" src="https://web.archive.org/web/20170804082830js_/http://www.bbc.com/earth/static/80639ec75e40/scripts/vendor/comscore/comscore.js"></script> <noscript> <p> <img src="https://web.archive.org/web/20170804082830im_/http://ssc.api.bbc.com/?c1=2&c2=19774467&ns_site=bbc&name=bbc_-_earth_-_the_physics_that_tells_us_what_the_universe_is_made_of&b_vs_un=bc&c7=http%3A%2F%2Fwww.bbc.com%2Fearth%2Fstory%2F20170404-the-physics-that-tells-us-what-the-universe-is-made-of&b_c7=http%3A%2F%2Fwww.bbc.com%2Fearth%2Fstory%2F20170404-the-physics-that-tells-us-what-the-universe-is-made-of&c8=bbc_-_earth_-_the_physics_that_tells_us_what_the_universe_is_made_of&b_app_type=web&b_app_name=earth%7Crc43&b_imp_ver=rc43&b_imp_src=wwf&b_site_section=column.video&b_site_channel=earth&b_site_subsec1=video&b_edition=international&b_column=video&b_page_type=sty%7Cvid&b_article_title=the%20physics%20that%20tells%20us%20what%20the%20universe%20is%20made%20of&b_article_id=wwearth%2Fstory%2F20170404-the-physics-that-tells-us-what-the-universe-is-made-of&b_article_theme=physics&b_article_date=1491372002120&b_article_update=1491372002120&b_article_length=432" height="1" width="1" alt="*"/> </p> </noscript> <script> (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){ (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o), m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m) })(window,document,'script','//web.archive.org/web/20170804082830/http://www.google-analytics.com/analytics.js','ga'); ga('create', 'UA-47973230-2', 'bbc.com'); ga('send', 'pageview'); </script> <script type="text/javascript"> var _sf_async_config={}; _sf_async_config.useCanonical = true; _sf_async_config.uid = '50924'; _sf_async_config.domain = 'bbc.co.uk'; _sf_async_config.sections = 'earth,video,physics'; _sf_async_config.authors = 'false'; (function(){ function loadChartbeat() { window._sf_endpt=(new Date()).getTime(); var e = document.createElement("script"); e.setAttribute("language", "javascript"); e.setAttribute("type", "text/javascript"); e.setAttribute('src', '//web.archive.org/web/20170804082830/http://static.chartbeat.com/js/chartbeat.js'); document.body.appendChild(e); } var oldonload = window.onload; window.onload = (typeof window.onload != "function") ? loadChartbeat : function() { oldonload(); loadChartbeat(); }; })(); </script> </div> <div id="orb-footer" class="orb-footer orb-footer-grey b-footer--grey--white"> <div id="navp-orb-footer-promo" class="orb-footer-grey"></div> <aside role="complementary"> <div id="orb-aside" class="orb-nav-sec b-r b-g-p"> <div class="orb-footer-inner" role="navigation"> <h2 class="orb-footer-lead">Explore the BBC</h2> <div class="orb-footer-primary-links"> <ul> <li class="orb-nav-home orb-d"> <a href="https://web.archive.org/web/20170804082830/http://www.bbc.co.uk/">Home</a> </li> <li class="orb-nav-homedotcom orb-w"> <a href="https://web.archive.org/web/20170804082830/http://www.bbc.com/">Home</a> </li> <li class="orb-nav-news orb-d"> <a href="https://web.archive.org/web/20170804082830/http://www.bbc.co.uk/news">News</a> </li> <li class="orb-nav-newsdotcom orb-w"> <a href="https://web.archive.org/web/20170804082830/http://www.bbc.com/news">News</a> </li> <li class="orb-nav-sport"> <a href="/web/20170804082830/http://www.bbc.com/sport/">Sport</a> </li> <li class="orb-nav-weather"> <a href="/web/20170804082830/http://www.bbc.com/weather/">Weather</a> </li> <li class="orb-nav-shop orb-w"> <a href="https://web.archive.org/web/20170804082830/http://shop.bbc.com/">Shop</a> </li> <li class="orb-nav-earthdotcom orb-w"> <a href="https://web.archive.org/web/20170804082830/http://www.bbc.com/earth/">Earth</a> </li> <li class="orb-nav-travel-dotcom orb-w"> <a href="https://web.archive.org/web/20170804082830/http://www.bbc.com/travel/">Travel</a> </li> <li class="orb-nav-capital orb-w"> <a href="https://web.archive.org/web/20170804082830/http://www.bbc.com/capital/">Capital</a> </li> <li class="orb-nav-iplayer orb-d"> <a href="/web/20170804082830/http://www.bbc.com/iplayer/">iPlayer</a> </li> <li class="orb-nav-culture orb-w"> <a href="https://web.archive.org/web/20170804082830/http://www.bbc.com/culture/">Culture</a> </li> <li class="orb-nav-autos orb-w"> <a href="https://web.archive.org/web/20170804082830/http://www.bbc.com/autos/">Autos</a> </li> <li class="orb-nav-future orb-w"> <a href="https://web.archive.org/web/20170804082830/http://www.bbc.com/future/">Future</a> </li> <li class="orb-nav-tv"> <a href="/web/20170804082830/http://www.bbc.com/tv/">TV</a> </li> <li class="orb-nav-radio"> <a href="/web/20170804082830/http://www.bbc.com/radio/">Radio</a> </li> <li class="orb-nav-cbbc"> <a href="/web/20170804082830/http://www.bbc.com/cbbc">CBBC</a> </li> <li class="orb-nav-cbeebies"> <a href="/web/20170804082830/http://www.bbc.com/cbeebies">CBeebies</a> </li> <li class="orb-nav-food"> <a href="/web/20170804082830/http://www.bbc.com/food/">Food</a> </li> <li> <a href="/web/20170804082830/http://www.bbc.com/iwonder">iWonder</a> </li> <li> <a href="/web/20170804082830/http://www.bbc.com/education">Bitesize</a> </li> <li class="orb-nav-travel orb-d"> <a href="/web/20170804082830/http://www.bbc.com/travel/">Travel</a> </li> <li class="orb-nav-music"> <a href="/web/20170804082830/http://www.bbc.com/music/">Music</a> </li> <li class="orb-nav-earth orb-d"> <a href="https://web.archive.org/web/20170804082830/http://www.bbc.com/earth/">Earth</a> </li> <li class="orb-nav-arts"> <a href="/web/20170804082830/http://www.bbc.com/arts/">Arts</a> </li> <li class="orb-nav-makeitdigital"> <a href="/web/20170804082830/http://www.bbc.com/makeitdigital">Make It Digital</a> </li> <li> <a href="/web/20170804082830/http://www.bbc.com/taster">Taster</a> </li> <li class="orb-nav-nature orb-w"> <a href="/web/20170804082830/http://www.bbc.com/nature/">Nature</a> </li> <li class="orb-nav-local"> <a href="/web/20170804082830/http://www.bbc.com/local/">Local</a> </li> </ul> </div> </div> </div> </aside> <footer role="contentinfo"> <div id="orb-contentinfo" class="orb-nav-sec b-r b-g-p"> <div class="orb-footer-inner"> <ul> <li> <a href="/web/20170804082830/http://www.bbc.com/terms/">Terms of Use</a> </li> <li> <a href="/web/20170804082830/http://www.bbc.com/aboutthebbc/">About the BBC</a> </li> <li> <a href="/web/20170804082830/http://www.bbc.com/privacy/">Privacy Policy</a> </li> <li> <a href="/web/20170804082830/http://www.bbc.com/privacy/cookies/about">Cookies</a> </li> <li> <a href="/web/20170804082830/http://www.bbc.com/accessibility/">Accessibility Help</a> </li> <li> <a href="/web/20170804082830/http://www.bbc.com/guidance/">Parental Guidance</a> </li> <li> <a href="/web/20170804082830/http://www.bbc.com/contact/">Contact the BBC</a> </li> <li class=" orb-w"> <a href="https://web.archive.org/web/20170804082830/http://advertising.bbcworldwide.com/">Advertise with us</a> </li> <li class=" orb-w"> <a href="/web/20170804082830/http://www.bbc.com/privacy/cookies/international/">Ad choices</a> </li> </ul> <small> <span class="orb-hilight">Copyright © 2017 BBC.</span> The BBC is not responsible for the content of external sites. <a href="/web/20170804082830/http://www.bbc.com/help/web/links/" class="orb-hilight">Read about our approach to external linking.</a> </small> </div> </div> </footer> </div> <div class="bbccom_display_none"><script type="text/javascript"> /*<![CDATA[*/ if (window.bbcdotcom && window.bbcdotcom.analytics && bbcdotcom.config && !bbcdotcom.config.isSportApp()) { bbcdotcom.analytics.page(); } /*]]>*/ </script><script type="text/javascript"> /*<![CDATA[*/ if (window.bbcdotcom && bbcdotcom.currencyProviders) { bbcdotcom.currencyProviders.write(); } /*]]>*/ </script><script type="text/javascript"> /*<![CDATA[*/ if (window.bbcdotcom && bbcdotcom.currencyProviders) { bbcdotcom.currencyProviders.postWrite(); } /*]]>*/ </script><script type="text/javascript"> /*<![CDATA[*/ if (window.bbcdotcom && bbcdotcom.data && bbcdotcom.data.stats && bbcdotcom.data.stats === 1 && bbcdotcom.utils && window.location.pathname === '/' && window.bbccookies && bbccookies.readPolicy('performance') ) { var wwhpEdition = bbcdotcom.utils.getMetaPropertyContent('wwhp-edition'); var _sf_async_config={}; /** CONFIGURATION START **/ _sf_async_config.uid = 50924; _sf_async_config.domain = "bbc.co.uk"; _sf_async_config.title = "Homepage"+(wwhpEdition !== '' ? ' - '+wwhpEdition : ''); _sf_async_config.sections = "Homepage"+(wwhpEdition !== '' ? ', Homepage - '+wwhpEdition : ''); _sf_async_config.region = wwhpEdition; _sf_async_config.path = "/"+(wwhpEdition !== '' ? '?'+wwhpEdition : ''); /** CONFIGURATION END **/ (function(){ function loadChartbeat() { window._sf_endpt=(new Date()).getTime(); var e = document.createElement("script"); e.setAttribute("language", "javascript"); e.setAttribute("type", "text/javascript"); e.setAttribute('src', '//web.archive.org/web/20170804082830/http://static.chartbeat.com/js/chartbeat.js'); document.body.appendChild(e); } var oldonload = window.onload; window.onload = (typeof window.onload != "function") ? loadChartbeat : function() { oldonload(); loadChartbeat(); }; })(); } /*]]>*/ </script><script type="text/javascript"> /*<![CDATA[*/ (function() { window.bbcdotcom.bodyLast = true; }()); /*]]>*/ </script></div> <script type="text/javascript" id="orb-js-script" data-assetpath="http://static.bbci.co.uk/frameworks/barlesque/3.21.24/orb/4/" src="https://web.archive.org/web/20170804082830js_/http://static.bbci.co.uk/frameworks/barlesque/3.21.24/orb/4/script/orb.min.js"></script> <script type="text/javascript"> (function() { 'use strict'; var promoManager = { url: '', promoLoaded: false, makeUrl: function (theme, site, win) { var loc = win? win.location : window.location, proto = loc.protocol, host = loc.host, url = proto + '//' + ((proto.match(/s:/i) && !host.match(/^www\.(int|test)\./i))? 'ssl.' : 'www.'), themes = ['light', 'dark']; if ( host.match(/^(?:www|ssl|m)\.(int|test|stage|live)\.bbc\./i) ) { url += RegExp.$1 + '.'; } else if ( host.match(/^pal\.sandbox\./i) ) { url += 'test.'; } theme = themes[ +(theme === themes[0]) ]; return url + 'bbc.co.uk/navpromo/card/' + site + '/' + theme; }, init: function(node) { var disabledByCookie = (document.cookie.indexOf('ckns_orb_nopromo=1') > -1), that = this; if (window.promomanagerOverride) { for (var p in promomanagerOverride) { that[p] = promomanagerOverride[p]; } } if ( window.orb.fig('uk') && !disabledByCookie ) { require(['orb/async/_footerpromo', 'istats-1'], function(promo, istats) { var virtualSite = istats.getSite() || 'default'; that.url = (window.promomanagerOverride || that).makeUrl('light', virtualSite); if (that.url) { promo.load(that.url, node, { onSuccess: function(e) { if(e.status === 'success') { node.parentNode.className = node.parentNode.className + ' orb-footer-promo-loaded'; promoManager.promoLoaded = true; promoManager.event('promo-loaded').fire(e); } }, onError: function() { istats.log('error', 'orb-footer-promo-failed'); bbccookies.set('ckns_orb_nopromo=1; expires=' + new Date(new Date().getTime() + 1000 * 60 * 10).toGMTString() + ';path=/;'); } }); } }); } } }; define('orb/promomanager', ['orb/lib/_event'], function (event) { event.mixin(promoManager); return promoManager; }); require(['orb/promomanager'], function (promoManager) { promoManager.init(document.getElementById('navp-orb-footer-promo')); }) })(); </script> <script type="text/javascript"> require.config({ paths: { "mybbc/templates": '//web.archive.org/web/20170804082830/http://mybbc.files.bbci.co.uk/notification-ui/3.8.1/templates', "mybbc/notifications": '//web.archive.org/web/20170804082830/http://mybbc.files.bbci.co.uk/notification-ui/3.8.1/js' } }); require(['mybbc/notifications/NotificationsMain', 'idcta/idcta-1'], function (NotificationsMain, idcta) { var loadNotifications = function (fig) { if (fig.geo.isUK()) { NotificationsMain.run(idcta, '//web.archive.org/web/20170804082830/http://mybbc.files.bbci.co.uk/notification-ui/3.8.1/'); } }; var orbFig = window.orb.fig; if (typeof orbFig.load === 'function') { // Use new async API from Orbit orbFig.load(loadNotifications, loadNotifications); } else { // Use old sync-only API from PAL orbfig project loadNotifications(orbFig); } }); </script> <script type="text/javascript"> if (typeof require !== 'undefined') { require(['istats-1'], function(istats){ istats.track('external', { region: document.getElementsByTagName('body')[0] }); istats.track('download', { region: document.getElementsByTagName('body')[0] }); }); } </script> <script type="text/javascript"> if( window.SEARCHBOX.suppress === false && window.SEARCHBOX.locale && /^en-?.*?/.test(window.SEARCHBOX.locale) ){ require.config({ paths: { "search/searchbox": window.SEARCHBOX.searchboxAppStaticPrefix } }); require(['search/searchbox/searchboxDrawer'], function(SearchboxDrawer) { SearchboxDrawer.run(window.SEARCHBOX); }); } </script> <script type="text/javascript">require(["megavolt-client","istats-1","orb/cookies"],function(t,e,i){function o(){return"true"===l&&s&&t&&"function"==typeof t.addMVTIStatsLabels}function n(){!c&&o()?setTimeout(function(){e.invoke()},"1000"):e.invoke()}var a=navigator.userAgent.toLowerCase(),s=!(a.indexOf("msie")>-1)||parseInt(a.split("msie")[1],10)>10,c=!1,l="false";if(i.isAllowed("s1"))try{if(o()&&t.addMVTIStatsLabels(function(t){e.addLabels(t),c=!0}),!require.s.contexts._.config.paths.idcta)return void n();require(["idcta/idcta-1"],function(t){t&&"function"==typeof t.getIStatsLabels&&e.addLabels(t.getIStatsLabels()),n()},function(t){throw t})}catch(t){console&&"function"==typeof console.log&&console.log("an exception occurred while adding idcta labels to istats, invoking istats without them",t),n()}});</script> </body> </html>