{"id":113540,"date":"2020-09-28T19:23:07","date_gmt":"2020-09-29T02:23:07","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2020\/09\/scientists-precisely-measure-total-amount-of-matter-in-the-universe"},"modified":"2020-09-28T19:23:07","modified_gmt":"2020-09-29T02:23:07","slug":"scientists-precisely-measure-total-amount-of-matter-in-the-universe","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2020\/09\/scientists-precisely-measure-total-amount-of-matter-in-the-universe","title":{"rendered":"Scientists precisely measure total amount of matter in the universe"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/scientists-precisely-measure-total-amount-of-matter-in-the-universe2.jpg\"><\/a><\/p>\n<p>A top goal in cosmology is to precisely measure the total amount of matter in the universe, a daunting exercise for even the most mathematically proficient. A team led by scientists at the University of California, Riverside, has now done just that.<\/p>\n<p>Reporting in the <i>Astrophysical Journal<\/i>, the team determined that matter makes up 31% of the total amount of matter and energy in the <a href=\"https:\/\/phys.org\/tags\/universe\/\" rel=\"tag\" class=\"\">universe<\/a>, with the remainder consisting of dark energy.<\/p>\n<p>\u201cTo put that amount of matter in context, if all the matter in the universe were spread out evenly across space, it would correspond to an average mass density equal to only about six <a href=\"https:\/\/phys.org\/tags\/hydrogen+atoms\/\" rel=\"tag\" class=\"\">hydrogen atoms<\/a> per cubic meter,\u201d said first author Mohamed Abdullah, a graduate student in the UCR Department of Physics and Astronomy. \u201cHowever, since we know 80% of matter is actually <a href=\"https:\/\/phys.org\/tags\/dark+matter\/\" rel=\"tag\" class=\"\">dark matter<\/a>, in reality, most of this matter consists not of hydrogen atoms but rather of a type of matter which cosmologists don\u2019t yet understand.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A top goal in cosmology is to precisely measure the total amount of matter in the universe, a daunting exercise for even the most mathematically proficient. A team led by scientists at the University of California, Riverside, has now done just that. Reporting in the Astrophysical Journal, the team determined that matter makes up 31% [\u2026]<\/p>\n","protected":false},"author":513,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33,48],"tags":[],"class_list":["post-113540","post","type-post","status-publish","format-standard","hentry","category-cosmology","category-particle-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/113540","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/513"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=113540"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/113540\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=113540"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=113540"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=113540"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}