It is believed that about 4% of the mass in the Universe is normal matter. About 23% is dark matter (matter of unknown composition), the remainder being something even more mysterious called dark energy. I suggest searching the Wikipedia for "dark matter" and "dark energy", for more details about both.
Bagel bitesDark Matter
The existence of matter is not infinite, as there is a limit to the amount of matter in the universe.
The totality of all matter, radiation, and space is known as the universe. It encompasses everything that exists, from stars and planets to dark matter and energy. The universe is constantly expanding and evolving according to the laws of physics.
Our theories of physics indicate that the speed of light should be invariant (unchanging) anywhere in the universe.
That sounds like the description of "dark matter".
In my Universe, about 23% of its energy is found in dark matter -- about four to five times more than in matter we happen to understand. I don't know the percentage in your Universe.
In my Universe, about 23% of its energy is found in dark matter -- about four to five times more than in matter we happen to understand. I don't know the percentage in your Universe.
In my Universe, about 23% of its energy is found in dark matter -- about four to five times more than in matter we happen to understand. I don't know the percentage in your Universe.
Thorium constitutes about 4E-8% of the visible baryonic matter of the universe by mass. Visible baryonic matter is about 4.9% of the total mass of the universe, as per the latest estimates. So the mass-percentage of thorium in the universe would be 4E-8 x 0.049 = ... very little.
Most matter in the universe exists in the form of dark matter and dark energy, which are currently not fully understood by scientists. These two components make up the majority of the universe's mass-energy content, with ordinary matter (protons, neutrons, electrons) making up only a small percentage.
Neutrons are one of the three fundamental particles of an atom, along with protons and electrons. In the universe, neutrons make up a small percentage of the overall matter content, with estimates placing them at around 1% of the total mass-energy content. The majority of the universe is composed of dark matter and dark energy, which together make up the vast majority of its mass-energy content.
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.
Roughly 70% of the Universe is dark energy. Dark matter makes up about 25%. The rest, everything on Earth, everything ever observed with all of our instruments, all normal matter - adds up to less than 5% of the Universe. That is, with the knowledge and the proof that both dark energy and dark matter exist rather than inferences.
Based on the volume of measurable matter in the visible universe, and using most postulates regarding the state of "heavenly bodies" as measured, matter is primarily in gaseous form (gas planets, stars, nebulae). Only after gravitational compression to liquids or solids start to form, and this is a very small percentage of the overall matter in the vacuum of space.
Plasma is the most common type of matter in the universe
The no. of atoms in the Universe is not estimated yet because till now we are not able to calculate the amount of matter present in the universe and what is the exact percentage of each element in the universe. Once it is calculated, scientists would be able to calculate the no. of atoms in the universe.
99.999% of the universe is made of plasma