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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.
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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!
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SteveThe 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.
