{"id":51,"date":"2026-06-28T14:32:37","date_gmt":"2026-06-28T14:32:37","guid":{"rendered":"https:\/\/tilku.com.et\/?p=51"},"modified":"2026-06-28T14:32:37","modified_gmt":"2026-06-28T14:32:37","slug":"universe","status":"publish","type":"post","link":"https:\/\/tilku.com.et\/?p=51","title":{"rendered":"Universe"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">The universe is everything that exists: all matter, energy, space, time, and the physical laws that govern them.<br>Here are a few key facts:<br>Age: About 13.8 billion years.<br>Origin: The leading scientific model is the Big Bang, which describes the universe expanding from an extremely hot, dense early state.<br>Size: The observable universe is about 93 billion light-years in diameter. The entire universe may be much larger\u2014or even infinite\u2014but we don&#8217;t know.<br>Contents: It includes:<br>Hundreds of billions of galaxies<br>Stars, planets, moons, gas, and dust<br>Dark Matter, which exerts gravity but does not emit light<br>Dark Energy, which appears to drive the accelerating expansion of the universe<br>Our place: Earth orbits the Sun, which is one of hundreds of billions of stars in the Milky Way galaxy.<br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Scientists study the universe using astronomy, physics, and cosmology, employing telescopes that observe everything from visible light to radio waves, X-rays, and gravitational waves.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The universe is everything that exists: all matter, energy, space, time, and the physical laws that govern them.Here are a few key facts:Age: About 13.8 billion years.Origin: The leading scientific model is the Big Bang, which describes the universe expanding from an extremely hot, dense early state.Size: The observable universe is about 93 billion light-years [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-51","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/tilku.com.et\/index.php?rest_route=\/wp\/v2\/posts\/51","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tilku.com.et\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tilku.com.et\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tilku.com.et\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tilku.com.et\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=51"}],"version-history":[{"count":2,"href":"https:\/\/tilku.com.et\/index.php?rest_route=\/wp\/v2\/posts\/51\/revisions"}],"predecessor-version":[{"id":53,"href":"https:\/\/tilku.com.et\/index.php?rest_route=\/wp\/v2\/posts\/51\/revisions\/53"}],"wp:attachment":[{"href":"https:\/\/tilku.com.et\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=51"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tilku.com.et\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=51"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tilku.com.et\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=51"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}