1.0News Center/newscenterAdam Fenster/newscenter/author/afenster/rich600338<blockquote class="wp-embedded-content" data-secret="lh9wpCQ20H"><a href="/newscenter/the-transit-of-mercury/">The transit of Mercury</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="/newscenter/the-transit-of-mercury/embed/#?secret=lh9wpCQ20H" width="600" height="338" title="“The transit of Mercury” — News Center" data-secret="lh9wpCQ20H" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=/newscenter/wp-includes/js/wp-embed.min.js /* ]]> */ </script> /newscenter/wp-content/uploads/2016/05/fea-mercury-transit.jpg944630Mercury appears as a tiny black dot visible below the weathervane on top of Rush Rhees Library as it glides in front of the sun. Mercury, the smallest planet in the solar system, passes between the Earth and the sun only 13 times in a century, and took seven and a half hours to traverse the sun today. (University photo / J. Adam Fenster)