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I presume you mean, "What might baryonic dark matter consist of?"
It MIGHT be non-luminous gas, MACHOs (a cute acronym), condensed matter like black holes & white dwarfs, and brown dwarfs.
The measured ratio of hydrogen to deuterium to helium in our Universe precludes the possibility that a large proportion of dark matter could be baryonic. The proportion could even be negligible.
What else can I help you with?
What percentage of matter in the universe isn't plasma?
Of the visible, baryonic matter in the universe, about 0.1% is not plasma, according to some hurried estimates. This includes the large gas giants, such as Saturn and Jupiter. Most all of the Sun's hydrogen and helium is ionized, and most of the interstellar medium as well.However, ordinary matter, the stuff plasma is made up of, only constitutes about 5% of the total mass-energy of the universe. Some 27% is dark matter, and it is not known whether dark matter can form plasma of any kind. It's safe to say that less than 5% of the total mass-energy of the universe comes as baryonic plasma.
Is dark matter actually matter?
"Dark matter" interacts with baryonic matter -- ie, the stuff we understand -- via gravity but not in any other significant way. Not via the electromagnetic force, nor via the strong force, possibly not even via the weak force. What this stuff happens to be is still being debated. Dark matter, however, can NOT be simply energy in our cosmos. If it were, it would push space apart -- which is what dark energy is doing. Dark matter, on the other hand, is doing the exact opposite -- it is pulling space (and the matter within it) into it. Thus, dark matter is SOME kind of matter (or mass, which is the same thing) which, at present, we don't fully understand yet.
What are the estimated total amounts of baryonic matter in the universe?
About 4% of the matter in the Universe is estimated to be baryonic matter. In absolute terms, it is hard to say, since we don't know how big the Universe is. Such estimates would therefore have to be done in terms of the "observable Universe". Here are some estimates: http://en.wikipedia.org/wiki/Observable_Universe#Mass
What elements in nature cannot be found in elemental form?
The elements on the periodic table are considered to be Baryonic matter. The periodic table does not include dark matter, dark energy, antimatter, or exotic matter. Every single matter can be found in the periodic table of elements.
What is the universe mostly composed of?
In Theory; Approximately 73% dark energy, 23% dark matter, and 4% normal (baryonic) matter. As far as we can tell now, the universe is made of energy, some of which appears in the form of matter. Matter is composed of particles called atoms. Atoms form molecules; a molecule is the smallest part of a given material that still retains its chemical properties. Even atoms are composed of smaller particles like quarks and gluons. It appears that all particles are waves at the same time. Astronomers like to call all material made up of protons, neutrons and electrons "baryonic matter." Until about thirty years ago, astronomers thought that the universe was composed almost entirely of this "baryonic matter," ordinary atoms.
Do all forms of matter possess some properties of dark matter?
Not much is known yet about the properties of dark matter, so it is really hard to compare this.
What is it about dark matter that has scientists saying that eighty five percent of the universe is missing?
Try not to confuse two things that have nothing in common other than their present description having the word "dark" in it. Dark matter is SOME type of matter that interacts with othe matter via gravity, but is not visible to us. It appears to some type of matter that does not interact at all, other than via gravity. What is it? We don't know -- hence the name "dark" matter. Based on the observation of its effect on rotations in galaxies and the bending of light from distant sources, we estimate there is five times more mass in our Universe that is composed of dark matter than the stuff we understand -- stuff we call "baryonic matter" or "luminous matter." Where dark matter exerts a gravitational pull, tending to bring galaxies closer together (or at least slow down the rate at which they are apart from each other), dark ENERGY is something that tends to make galaxies become further apart from each. As best we can tell, it is an inherent proper of empty space itself -- ie, whatever dark energy happens to be, it would exist even where there was no matter whatsoever. Based on the measured ability of dark energy (what EVER it happens to be -- never forget we have NO idea what this stuff even IS) to make entire galaxies move apart from each other, we estimate that the amount of energy in the Universe that is "dark" is much greater than the amount of all other energy -- and that includes all of the mass that is in dark matter! As the pie chart below shows, about 74% of the energy of the Universe is in dark energy, about 22% is the mass in dark matter, about 3.6% is in the mass of gas between galaxies, and a measly 0.4% is in the mass of stars in galaxies. This means we understand only about 5% of our Universe!
Are all black holes made of dark matter?
No, dark matter is quite a different kind of thing. A dark hole may have absorbed some dark matter, but pressumably that would become indistinguishable from the normal matter, once it gets crushed by the enormous gravity of the black hole.
What does dark energy mean?
Dark energy is the term used to describe the hypothetical type of energy rationalized to account for the inflationary expansion of the universe. Similar to the Einstien's cosmological constant, which Einstein invented to account for the discrepancies of a static universe, the is no direct empirical evidence of its physical nature or form. According to the Planck mission team, and based on the standard model of cosmology, the total mass–energy of the universe contains 4.9% ordinary matter, 26.8% dark matter and 68.3% dark energy.Although the existence of dark matter is generally accepted by the mainstream scientific community, there is no generally agreed direct detection of it. Two proposed forms for dark energy are Einstein's cosmological constant, a constant energy density filling space homogeneously, and scalar fields such as quintessence or moduli, dynamic quantities whose energy density can vary in time and space. Due to a lack of empirical evidence, there are no theoretical conjectures for the formation of dark energy as part of the Big Bang event.Dark matter is the term used to describe the hypothetical type of non-baryonic matter rationalized to account for discrepancies between the mass of large astronomical objects, determined from their gravitational effects, and the mass calculated from the "luminous matter" that they contain: i.e. stars, gas and dust. Since there are no empirical evidence to support dark matter, by process of elimination, based in part on the calculations consistent with general relativity, dark matter is estimated to constitute 84.5% of the total matter in the universe.Although the existence of dark matter is generally accepted by the mainstream scientific community, there is no generally agreed direct detection of it. Other theories including MOND and TeVeS, are some alternative theories of gravity proposed to try to explain the anomalies for which dark matter is intended to account. Due to a lack of empirical evidence, there are no theoretical conjectures for the formation of dark matter as part of the Big Bang event.Other Opinion: From an alternate perspective, dark energy is thought to be the original medium of a pre-Big Bang universe. Consequently the Big Bang creation event, via an unfolding of its condition from singularity, introduce the intrusion of our existence: a reality of positive density matter within a traditional fourth dimensional SpaceTime continuum. Considering a pre-Big Bang universe as zero density matter, the intrusion of positive density matter simultaneously provided for introduction of negative density matter (or dark matter). The resulting effect of bringing the universe back into the more ordered condition consistent with its pre-Big Bang persistence is the expanding of the positive density matter within our fourth dimensional universe.Other Comment: Dark energy is the force that expands the universe. Dark matter is the force that keeps everything from crashing into one an other.Dark matter is what keeps galaxies together for example if you pour beads (representing stars planets etc) in a tub they spread out but if you get a fan (representing dark matter) it is possible to blow all the beads to one side dark matter is pushing certain thing together and also separating galaxies apart so in between galaxies there is dark matter. 80% of the universe is estimated to be dark matter. for a more detailed answer go to this site on the link below.Dark energy the big bang was an explosion of sorts and after an explosion it collapses back on it self but the universe isn't its spreading out faster than light which will eventually cause the big rip dark energy is pulling every thing out ward and is faster than light however we have no clue how big the thing dark energy is spreading us into is ...
Is it true that if you touch dark matter you blow up?
No.We know very little about dark matter; there are some ideas, but, as yet, nobody knows for sure what it is. What we doknow about dark matter, however, is that it interacts very weakly with other matter. Dark matter and "normal" matter are intermixed throughout space; if there were some catastrophic annihilation interaction between the two, we'd see the electromagnetic signature of that in observations of galaxies and galaxy clusters.
Is the Quantum Foam the actual cosmic dark matter?
It is not currently know what exactly dark matter is made of. However, it is suspected to be some sort of particle.
What is dark matter How is it formed?
Dark matter is the term used to describe the hypothetical type of non-baryonic matter rationalized to account for discrepancies between the mass of large astronomical objects, determined from their gravitational effects, and the mass calculated from the "luminous matter" that they contain: i.e. stars, gas and dust. Since there are no empirical evidence to support dark matter, by process of elimination, based in part on the calculations consistent with general relativity, dark matter is estimated to constitute 84.5% of the total matter in the universe. According to the Planck mission team, and based on the standard model of cosmology, the total mass–energy of the universe contains 4.9% ordinary matter, 26.8% dark matter and 68.3% dark energy. Although the existence of dark matter is generally accepted by the mainstream scientific community, there is no generally agreed direct detection of it. Other theories including MOND and TeVeS, are some alternative theories of gravity proposed to try to explain the anomalies for which dark matter is intended to account. Due to a lack of empirical evidence, there is are no theoretical conjectures for the formation of dark matteras part ofthe Big Bang event. Other Opinion: From an alternate perspective, dark energy is thought to be the original medium of a pre-Big Bang universe. Consequently the Big Bang creation event, via an unfolding of its condition from singularity, introduce the intrusion of our existence: a reality of positive density matter within a traditional fourth dimensional SpaceTime continuum. Considering a pre-Big Bang universe as zero density matter, the intrusion of positive density matter simultaneously provided for introduction of negative density matter (or dark matter). The resulting effect of bringing the universe back into the more ordered condition consistent with its pre-Big Bang persistence is the expanding of the positive density matter within our fourth dimensional universe.
