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The universe has a very low mass density, implying that most of the universe is free space. The masses that has been discovered so far contains mostly stars, or gaseous constellations etc. Stars are chiefly hydrogen, which fuses together to form helium. The most abundant element in the universe is hydrogen, followed by helium. Other elements are found only in planets which are much less in mass than stars, and hence have negligible contributions. The empty spaces are devoid of mass may be, but they are filled with radiation of all sorts like; the microwave background radiation which is basically the "echo" of the big bang.
2. Eddington calculated that there are about 1073 electrons in the universe.
Since then we believe that Dark Matter may make up 80% of the universe, but that only adds one to the order above, 1074 maybe.
---------------------------------Torak----------------------
Although Dark-matter is very likely to exist it has been very difficult to prove it's existence so even now they're not sure!
Wiki User
∙ 13y ago
The universe is composed of matter (atoms, particles) and energy (electromagnetic radiation, dark energy). It consists of galaxies, stars, planets, and other celestial bodies that are interconnected by gravity. These components exist within the fabric of spacetime, which is the framework in which everything in the universe exists.
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What island makes up the countries of Haiti and Dominican Republic?
Hispaniola is the island that makes up the countries of Haiti and the Dominican Republic. It is the second largest island in the Caribbean.
Which continent makes up 30 percent of the world's land area?
Asia is the continent that makes up about 30 percent of the world's land area, covering a vast region from the Middle East to the Far East.
How diverse is your universe?
My universe is incredibly diverse, featuring a wide range of galaxies, stars, planets, and unique life forms. There are countless different species, cultures, and civilizations that add richness and complexity to the universe I inhabit.
A sample constructed to represent the major characteristics of the universe?
One possible sample constructed to represent the major characteristics of the universe is the cosmic microwave background radiation. This radiation is a remnant of the Big Bang and provides clues about the early universe's temperature and density. By studying this radiation, scientists can gain insights into the universe's origins, evolution, and composition.
Wich continent makes up 30 percent of the worlds land area?
Asia is the continent that makes up approximately 30 percent of the world's land area. It is the largest continent by land area, covering diverse countries such as China, India, Russia, and Japan.
Is aluminum in the universe?
The Universe is everything . So, Aluminium makes up part of the universe: a tiny fraction of it.
What gas makes up most of the universe?
Hydrogen
What is the percentage of aluminum the universe?
Of all the baryonic matter, aluminium makes up about 0.005%. Considering that ordinary baryonic matter makes up about 4.9% of the universe, that would make aluminium constitute about 0.049 x 0.00005 = 0.000000245% of the mass of the universe.
What makes up 90 percent of universe?
None of the things that make up the universe measure up to 90 percent. The highest percent is 73 percent and that is dark energy.
What is the most prevalent element?
The most abundant element in the universe is hydrogen, which makes up about 3/4 of all matter. Helium makes up most of the remaining 25%. Oxygen is the third most abundant element in the universe.
What is the same about dark energy and dark matter?
there are the energy that mostly makes up this universe and its had been here since the beginning of the universe and also they are invisible.
What subsystems make up the universe?
It is theorized that dark matter makes up 80 percent of the universe. Another theory is that 68 percent of the universe is dark energy, 27 percent is dark matter, and 5 percent is baryonic matter.
What is the state of matter that has positively and negatively charged particles that makes up most of the universe?
plasma
What is ment by the universe?
the universe is made up by little specks of dust which cause a huge explosion. this explosion makes a small planet which builds up, and builds, and builds up until it is huge. without the universe we would not be here today yet there is still not a sure purpose of it being there.
Which makes up most------single elements or compounds?
In terms of the total mass of the universe, it is single elements.
What are the functions hydrogen?
Hydrogen is an element, the simplest element that makes up over 99% of the Universe's matter.
What element is most of the matter in the universe?
The most abundant element in the universe is hydrogen, which makes up about three-quarters of all matter! Helium makes up most of the remaining 25%
