The physical universe is defined as all of space and time (collectively referred to as spacetime) and their contents. Baryonic matter, the ‘ordinary’ matter that we can encounter and see, accounts for just 5% of the total. Instead of a Universe made up of 73% dark energy, the best post-Planck estimate puts it at just 68-to-69%. Changing Estimates of the Content of the Universe: This diagram shows the changes in our understanding of the contents of the universe over the past three decades. The universe is composed almost completely of dark energy, dark matter, and ordinary matter. The conventional answer is "Composition. These protons, neutrons and electrons are bound together to form atom. Estimates of the age of the Universe depend upon what it is made of. By studying the high-temperature and high-pressure environment of the early universe during BBN, we hope to better understand the particles present in the early universe … [Directed by Pew36 Animation Studios, narrated by Dennis Wildfogel]. The Universe Made Simple is a book that attempts to describe the universe to someone who knows little or nothing about it to start with. Figure 2. What Is The Universe Made Of? [Directed by Pew36 Animation Studios, narrated by Dennis Wildfogel]. The Earth, the sun, the stars, and everything we can see, only comprise five percent of the universe. Existing space and ground-based telescopes have made substantial progress in studying the subsequent evolution of galaxies. The biggest stars are in it. You are in the Universe. Most astronomers think that the Universe was formed during an event called the Big Bang - a giant explosion which occurred between 10 and 20 billion years ago. The universe is made up of ordinary matter, dark matter and dark energy. Scientists Respond All this week, we've been contemplating the great mysteries of the universe. It is made of many millions of millions of stars and planets and enormous clouds of gas separated by a gigantic space.. Astronomers can use telescopes to look at very distant galaxies.This is how they see what the Universe looked like a long time ago. Starting in the 1970s, astronomers began collecting evidence that made them suspect there was more to the universe than meets the eye. The whole universe is made up of energy - and at this level everything is vibrating. Astrophysicists tell that universe is made up of atoms. Yes, universe has atoms. In Tegmark's view, everything in the universe — humans included — is part of a mathematical structure. The only chemical elements created at the beginning of our universe were hydrogen, helium and lithium, the three lightest atoms in the periodic table. We don't even know how big the Universe is! Cosmological and astrophysical observations indicate that most of the Universe is made up of invisible substances that do not emit electromagnetic radiation – that is, we cannot detect them directly through telescopes or similar instruments. They are very small. Almost all of the universe — 96 percent — is invisible stuff called dark matter and dark energy. Even the smallest things on Earth are part of the Universe. What is the universe made of? According to physicists universe is made up of protons neutrons and electrons. The Universe is all of time and space and its contents. WMAP determined that about 4.6% of the mass and energy of the universe is contained in atoms (protons and neutrons). Matter known as ordinary corresponds to only 5 percent of the Universe. All of life is made from a portion of this 4.6%. The amounts of hydrogen, helium, and lithium that are made depend on what these other particles might be. Only 4.6 percent of the universe is made from ordinary atoms, the other 95.4 … It aims to explain the basic structure of the universe, our place in it, and some of its core, basic workings. The Universe consists of hydrogen (75 %), helium (24 %) and a tiny smattering of heavier elements (1 %). But it is just not made up of atoms. Image to right: Amoebas live on Earth. Things you can't see are in it, too. Dennis Wildfogel tells the captivating tale of these atoms' long journeys from the Big Bang to the molecules they form today. The vast majority of the universe is invisible and, so far, undetectable. [Excerpt] In this excerpt from his new book, Our Mathematical Universe, M.I.T. Thus, our new inventory gives us a new age for the Universe: 13.4 +/- 1.6 Gyr. We aren't made of hydrogen! A 2013 paper by MIT engineer Seth Lloyd builds the case for an intriguing spin on the concept: If space-time is made of quantum bits, the universe must be one giant quantum computer. Dennis Wildfogel tells the captivating tale of these atoms' long journeys from the Big Bang to the molecules they form today. In fact, it is hiding a lot. Humans are made of the stuff that everything else is made of in the universe. A curious combination of what scientists call dark matter and dark energy accounts for the remaining 95%. This book aims to be as simple as possible, but not at the risk of inaccuracy or dumbing-down. (credit: modification of work by NASA/WMAP Science Team) Hot gas mainly: 'Cosmic web' of filaments makes up the space between galaxies. Atoms are a small part of our universe. The elements essential to life on earth (carbon, oxygen, hydrogen, nitrogen, etc.) During the Big Bang, all of the space, time, matter, and energy in the Universe was created. What is the universe made of? The universe was then dark (except for this background radiation) until the first stars and galaxies began to form only a few hundred million years after the Big Bang. If we look at the human body and go down the scale we find cell, molecules, atoms, sub-atomic particles and pure energy. Approximately half of this percentage still eluded detection. How was the Universe made? The universe is hiding something. However, the elements that we are familiar with are just part of the story. In a way, it is not so much the visible things that define the Universe, but rather the void around them. Matter known as ordinary, which makes up everything we know, corresponds to only 5% of the Universe. The Universe is a big, open place. The atoms around you have existed for billions of years -- and most originated in the flaming, gaseous core of a star. Normal baryonic matter, the stuff most physicists study, makes up about 5% of the Universe. Is the Universe Made of Math? TED Talk Subtitles and Transcript: The atoms around you have existed for billions of years -- and most originated in the flaming, gaseous core of a star. The universe is a vast and fascinating place. They are in the Universe. Such contents comprise all of energy in its various forms, including electromagnetic radiation and matter, and therefore planets, moons, stars, galaxies, and the contents of intergalactic space. Present day, we can say that Universe is made up of 72% Dark Energy, 23% Dark Matter, 4.6% Baryonic Matter. Both theory and observations indicate that the Universe contains huge amounts of dark matter; no one knows what it’s made … Other contents are electromagnetic radiation (estimated to constitute from 0.005% to close to 0.01% of the total mass-energy of the universe) and antimatter." also exist on planets around other stars. The fraction of the universe that we think is made of the same particles as astronomy students has been decreasing steadily. When astronomers consider what it's made of, they can point most directly to the billions of galaxies it contains. 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