The majority of the universe, approximately 5%, is composed of ordinary matter, also known as baryonic matter. This includes elements such as helium and hydrogen, which are the most abundant elements in the universe. Hydrogen, in particular, makes up about 75% of the ordinary matter present.
The remaining elements in the universe, including helium, are also part of this 5% composition. However, they are present in relatively smaller quantities. These elements are primarily produced through nuclear fusion processes in stars.
In addition to the elements, the 5% of the universe also comprises the material that forms planets, asteroids, and comets. Planets, such as the ones in our solar system, consist of various elements and compounds that have accumulated and clumped together under gravity. These materials can include rock, metal, ice, and gases.
Asteroids are rocky objects that orbit the Sun, typically found in the asteroid belt between Mars and Jupiter. They are composed of rocky materials similar to those found in planets but are smaller in size.
Comets, on the other hand, are icy bodies that originate from the outer regions of the solar system, such as the Kuiper Belt and the Oort Cloud. They consist of a mixture of water ice, frozen gases like carbon dioxide and methane, as well as rocky particles.
Overall, the 5% of the universe represents the visible and detectable matter that we can observe, study, and interact with. The remaining 95% is made up of dark matter and dark energy, which are still not fully understood and remain largely mysterious to scientists.
5% of the Universe; Elements such as Helium and Hydrogen, as well as the material that make up planets, asteroids and comets
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