{"id":7247,"date":"2020-09-30T10:52:43","date_gmt":"2020-09-30T09:52:43","guid":{"rendered":"https:\/\/www.innovationnewsnetwork.com\/?p=7247"},"modified":"2020-09-30T10:52:43","modified_gmt":"2020-09-30T09:52:43","slug":"cosmologists-successfully-measure-the-amount-of-matter-in-the-universe","status":"publish","type":"post","link":"https:\/\/www.innovationnewsnetwork.com\/cosmologists-successfully-measure-the-amount-of-matter-in-the-universe\/7247\/","title":{"rendered":"Cosmologists successfully measure the amount of matter in the Universe"},"content":{"rendered":"
As published in the Astrophysical Journal<\/em><\/a>, the team determined that matter makes up 31% of the total amount of matter and energy in the Universe, with the remainder consisting of dark energy.<\/p>\n First author Mohamed Abdullah, a graduate student in the UCR Department of Physics and Astronomy, said: “To 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 hydrogen atoms per cubic metre.<\/p>\n \u201cHowever, since we know 80% of matter is actually dark matter<\/a>, in reality, most of this matter consists not of hydrogen atoms but rather of a type of matter which cosmologists don’t yet understand.”<\/p>\n One technique for determining the total amount of matter in the Universe is to compare the observed number and mass of galaxy clusters per unit volume with predictions from numerical simulations.<\/p>\n