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ukmicky
- 114
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An easy one.
How does dark matter clump together,is it possible for dark matter to form a sun.
How does dark matter clump together,is it possible for dark matter to form a sun.
Well yes and no!Robert J. Grave said:If it formed a sun it would no longer be dark. I think dark matter is not different from that which we observe its' just that without lite or some form of radiation hitting it and reflecting back to a detector it's presents can't be observed except of course for it's gravitational affect which is in fact how we know it exist. -Robert
Sorry but I find that comparison one step from insulting the magnificent work of Isaac Newton.Wallace said:Since the orbits of the planets are pretty happily described by Newtonian gravity with no dark matter needed (which is unsurprising since the orbits of the planets were used to come up with the Newtonian gravitational force law) we don't think there is a lot of DM around these parts, but there could well be small amounts.
MeJennifer said:Sorry but I find that comparison one step from insulting the magnificent work of Isaac Newton.
Newton developed a theory, we cannot say that from current cosmology, which is currently more like, as pointedly verbalized in wikipedia, "a parameterization of ignorance".
Unfortunately too many express an arrogance and certainty about the existence of dark matter and dark energy, as if it is derived from the model rather than made up to make it fit with experiment.
Sorry but I find that comparison one step from insulting the magnificent work of Isaac Newton.
Newton developed a theory, we cannot say that from current cosmology, which is currently more like, as pointedly verbalized in wikipedia, "a parameterization of ignorance".
Unfortunately too many express an arrogance and certainty about the existence of dark matter and dark energy, as if it is derived from the model rather than made up to make it fit with experiment.
Dark matter is different from regular matter in several ways. First, it does not interact with light or other forms of electromagnetic radiation, which is why it is "dark" and cannot be seen. Second, it does not interact with itself or other particles through the strong or weak nuclear forces, only through gravity. Lastly, it is estimated to make up about 85% of the total matter in the universe, while regular matter only makes up about 15%.
Dark matter does not interact with regular matter in the same way that regular matter interacts with itself. It does not form chemical bonds, emit or absorb light, or experience friction. However, it can still exert gravitational forces on regular matter, causing it to clump together and form structures such as galaxies and galaxy clusters.
The exact mechanism behind dark matter clumping together is still not fully understood. However, scientists believe that it is due to the gravitational interactions between dark matter particles. As they move through space, they are pulled towards regions with higher concentrations of dark matter, causing them to clump together over time.
While we cannot directly observe dark matter, scientists have been able to indirectly detect its presence through its gravitational effects on regular matter. This includes the formation of dark matter clumps, which can be observed through their influence on the rotation of galaxies, the bending of light from distant objects, and the distribution of hot gas in galaxy clusters.
The clumping of dark matter plays a crucial role in the evolution and structure of the universe. Without the gravitational pull of dark matter, regular matter would not have been able to clump together and form galaxies and other large-scale structures. The clumping of dark matter also affects the expansion of the universe, as it slows down the rate of expansion through its gravitational pull.