Scientists have confirmed that a pit in the Moon’s Sea of Tranquillity opens into an underground cave, probably an ancient lava tube. Only tens of metres have been mapped, but separate modelling suggests that lunar gravity could support tubes kilometres wide—natural shelters large enough, in theory, to house entire settlements.

1.0Canada News Beep | NewsBeep.comhttps://www.newsbeep.com/caNEWSBEEPhttps://www.newsbeep.com/ca/author/newsbeep/Scientists have confirmed that a pit in the Moon’s Sea of Tranquillity opens into an underground cave, probably an ancient lava tube. Only tens of metres have been mapped, but separate modelling suggests that lunar gravity could support tubes kilometres wide—natural shelters large enough, in theory, to house entire settlements.rich600338<blockquote class="wp-embedded-content" data-secret="1uotKbdmvK"><a href="https://www.newsbeep.com/ca/884114/">Scientists have confirmed that a pit in the Moon’s Sea of Tranquillity opens into an underground cave, probably an ancient lava tube. Only tens of metres have been mapped, but separate modelling suggests that lunar gravity could support tubes kilometres wide—natural shelters large enough, in theory, to house entire settlements.</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.newsbeep.com/ca/884114/embed/#?secret=1uotKbdmvK" width="600" height="338" title="“Scientists have confirmed that a pit in the Moon’s Sea of Tranquillity opens into an underground cave, probably an ancient lava tube. Only tens of metres have been mapped, but separate modelling suggests that lunar gravity could support tubes kilometres wide—natural shelters large enough, in theory, to house entire settlements.” — Canada News Beep | NewsBeep.com" data-secret="1uotKbdmvK" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! 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=https://www.newsbeep.com/ca/wp-includes/js/wp-embed.min.js </script> https://www.newsbeep.com/ca/wp-content/uploads/2026/09/nasa-lro-mare-tranquillitatis-lunar-pit-768x253.jpg600198