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We're not certain that "dark matter" even exists, or what the proportions of "normal" to "dark" matter is. I have read some articles saying that the ratio might be as much as 20-1; 20 parts dark matter to one part normal matter, but these are predicated (I believe) solely on rough calculations based on the perceived mass of the galaxy and its apparent rotational speed.
There appears to be a great deal of speculation and estimation in these calculations.
One important trait of a scientist is to NOT GUESS about things that we don't know, and to admit the boundary between the known, the believed, and the unknown. Even if the current hypotheses about dark matter and dark energy turn out to have some basis in reality, we will certainly be surprised by the truth when we finally learn it.
What else can I help you with?
Which is thought to be more prevalent in the universe dark matter or dark energy?
Dark energy. The current estimates for the distribution of mass/energy in the Universe are approximately: 68% dark energy 27% dark matter 5% baryonic (i.e. "normal") matter
Why do astronomers theorize that there is dark energy in the universe?
There are several pieces of evidence for dark matter. For example: * Our galaxy, and many other galaxies, rotate way too fast for the amount of known matter. * Evidence from gravitational lensing.
What happened to the missing mass?
The "missing mass" refers to the discrepancy between the observed mass of the universe and the mass predicted by models of cosmic structure formation. This missing mass is largely attributed to dark matter, a non-luminous substance that does not emit or interact with electromagnetic radiation, making it undetectable by traditional means. It is believed to make up about 27% of the universe's total mass-energy content, while ordinary matter accounts for only about 5%. Ongoing research in cosmology aims to better understand the nature and distribution of dark matter to explain this missing mass.
What's the dark matter in the universe?
Dark matter is matter of an unknown type. It is known to exist, due to its gravitational influence, but it is not known what it is made of. There is at least 5 times as much dark matter than "normal" matter.
What is deep in space and has less effect on earth?
Deep in space, dark matter and dark energy are two significant components that have minimal direct effect on Earth. Dark matter, which makes up about 27% of the universe, interacts primarily through gravity, while dark energy, accounting for approximately 68%, drives the universe's accelerated expansion. Both remain largely undetectable and have negligible impact on our planet compared to other cosmic forces. Their existence is inferred through gravitational effects on visible matter and the large-scale structure of the universe.
How is the energy distributed in the universe?
The energy in the universe is primarily distributed across three main components: dark energy, dark matter, and ordinary matter. Dark energy, which comprises about 68% of the universe's total energy content, is thought to drive the accelerated expansion of the universe. Dark matter accounts for about 27% and plays a crucial role in the structure formation of galaxies and galaxy clusters. Ordinary matter, including stars, planets, and interstellar gas, makes up only about 5% of the total energy density, highlighting the dominance of dark components in cosmic energy distribution.
What does most matter in the universe exist in?
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.
What are the main elements in the remaining 3 percent?
The remaining 3 percent of the universe's composition primarily consists of dark energy, dark matter, and ordinary (baryonic) matter. Dark energy, which makes up about 68 percent, drives the universe's accelerated expansion. Dark matter, accounting for about 27 percent, exerts gravitational effects yet does not emit light, remaining invisible to current detection methods. Ordinary matter, including stars, planets, and galaxies, constitutes roughly 5 percent of the universe.
Is dark matter Solid liquid or gas?
We do not know as we have not found any dark matter to examine. The only way we detect it and know it exists is due to its gravitational attraction of the ordinary matter we can see. One speculation when neutrinos were discovered to have tiny nonzero masses was that dark matter might be neutrinos. Another speculation is that dark matter is only ordinary matter, but its in another separate universe in a shared higher dimensional spacetime. Nobody knows.
What is ordinary matter?
Ordinary matter refers to atoms and molecules that make up the physical world we can see and touch. This includes elements like carbon, oxygen, and iron which form everything from rocks and trees to animals and people. Ordinary matter accounts for only about 5% of the universe, with dark matter and dark energy making up the rest.
Most of the visible universe if made of?
The universe is around 70% dark energy (a.k.a. empty space). The rest is mostly dark matter, with a few percent for ordinary matter. That is the current scientific model.
Where is the largest dark matter in the universe?
Dark matter is everywhere, there really is no place that has the most dark matter.
Is the universe matter?
The Universe contains matter, energy, dark matter, dark energy, empty space - and of course, lots of structures made up of those.The Universe contains matter, energy, dark matter, dark energy, empty space - and of course, lots of structures made up of those.The Universe contains matter, energy, dark matter, dark energy, empty space - and of course, lots of structures made up of those.The Universe contains matter, energy, dark matter, dark energy, empty space - and of course, lots of structures made up of those.
The amount of dark matter in the universe important?
Yes it is important because on basis of dark matter amount our universe will expand.
What is the ultimate matter in the universe?
Black or dark matter
Is there a lot of dark matter in the universe?
Depends what you mean by "a lot." The gravitational effect of dark matter -- whatever the stuff happens to be -- is about six times greater than that of all the visible matter in our Universe.
What is the percentage of dark matter 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.
