",{"id":"SIGNIN"}).html('
×
').appendTo("body");jQuery("#SIGNIN").on('click',function(e){closeLogin()})},closeLogin=function(){jQuery("#SIGNIN").remove();jQuery("body").css("overflow","inherit")},adjustLoginHeight=function(h){jQuery("#Oframe").height(h)},login_success=function(sess){jQuery(".sign-up").html("LOGOUT").on('click',function(){location.href="https://signin."+DOMAIN+"/oauth/logout"});closeLogin()},LANG='en',commentHeight=function(data){jQuery("#block-ibt-comment iframe").height(data.height)};var login_success=function(sess){closeLogin();jQuery("article").removeClass("wall");jQuery(".login-btn .sign-up2").hide();jQuery(".login-btn .myaccount").show();jQuery(".only-before-login").hide();if(typeof sess=='object'){sess=sess.sess};jQuery("
",{"id":"TEMPE"}).html('').appendTo("body");jQuery("#TEMPE iframe").on("load",function(){jQuery("#TEMPE").remove();if(jQuery("iframe.comment").length){jQuery("iframe.comment").get(0).contentWindow.postMessage({'action':'success',},'*')}});afterLogin()};function afterLogin(){};doFir.push(function(){jQuery(document).ready(function(){jQuery(".sign-up2").on('click',function(e){e.preventDefault();e.stopPropagation();openLogin('https://signin.'+DOMAIN.replace(/ibtimes\.[\.a-z]+/,'ibtimes.com')+'/oauth?l='+jQuery(this).attr('data-lang'))})})})
Known as the Milky Way's 'dark twin,' the Dragonfly 44 galaxy is special because it contains 99.99 percent dark matter. The galaxy is also changing what scientists thought they understood about this substance and the formation of galaxies.