Stars, gas, and dust are all categorized as visible matter, not "dark" matter, but, since dark matter does not interact electromagnetically, the behavior of ordinary matter is used to study dark matter through their gravitational effects. You might say that stars, gas, and dust are like the leaves blowing in an invisible wind; the force can be perceived by the effects on the leaves even if you can't see the wind directly.
The only similarity we know of is that they all seem to interact with gravity. Aside from that, scientists do not know what dark matter is.
A galaxy is a large system of stars, gas, dust, and dark matter held together by gravity. There are estimated to be billions of galaxies in the universe, each containing millions to trillions of stars. The exact number of galaxies and stars in the universe is still unknown due to the vastness of space and the limitations of current technology.
Stardust refers to the material ejected from stars, primarily composed of elements like carbon, oxygen, and silicon. Dark matter, on the other hand, is a mysterious form of matter that does not emit, absorb, or reflect light, making it invisible. While stardust is a known component of the universe, dark matter is hypothesized to exist based on its gravitational effects on visible matter. Their relation lies in the fact that both stardust and dark matter play significant roles in shaping the structure and evolution of galaxies, though they exist as distinct entities.
I am not sure there is one. Galaxies contain stars, gas, dust, black holes and other dead stars, and - above all - dark matter. The dark matter typically makes up 80-90% of a galaxy's mass.
A lot of it is probably more or less spherical. You see, "dark Matter," as distinguished from "dark Energy," which is really mysterious, is mostly just ordinary matter, which we can't see because it isn't lighted, either by nearby stars or its own heat. There could be numberless dark worlds out there just cruising through space; alternatively, dark matter could be finer than dust. The only thing we can say for sure is that there's a lot of it.
There is no consensus on what dark matter or dark energy is so we cannot tell at this time.
The only similarity we know of is that they all seem to interact with gravity. Aside from that, scientists do not know what dark matter is.
Gravity - from the stars, dust, etc., but especially from "dark matter", a substance of yet unknown composition.
There is at least 5 times as much dark matter than normal matter. "Normal" matter in this case includes all matter of known composition, including stars, interestellar gas and dust, and even black holes.There is at least 5 times as much dark matter than normal matter. "Normal" matter in this case includes all matter of known composition, including stars, interestellar gas and dust, and even black holes.There is at least 5 times as much dark matter than normal matter. "Normal" matter in this case includes all matter of known composition, including stars, interestellar gas and dust, and even black holes.There is at least 5 times as much dark matter than normal matter. "Normal" matter in this case includes all matter of known composition, including stars, interestellar gas and dust, and even black holes.
Dust, gas, dark matter, perhaps individual stars and planets.
Stars and any associated solar systems, dust, some gases and (potentially) dark matter.
A galaxy consists of stars, gas, dust, and dark matter. Stars provide light and energy, while gas and dust form new stars and planetary systems. Dark matter holds the galaxy together with its gravitational pull. Together, these components create the structure and function of a galaxy, shaping its appearance and influencing its evolution.
Stars and Galaxies are related because a galaxy is a system of billions of stars, gases, and dust.
Stars, dust, gas, black holes, dark matter...By far the most significant component, in terms of mass, is dark matter, making up about 80-90% of a galaxy's mass.
It is currently estimated that about 4% of the matter of the Universe is "normal" matter - matter that can be accounted for. This includes stars, dust, gas, and even black holes. About 23% of the matter is "dark matter", which makes itself manifest by its gravitational attraction - but that is about all we know about it. The remaining 73% is an even more mysterious "dark energy" - which somehow makes the Universe expand faster and faster.It is currently estimated that about 4% of the matter of the Universe is "normal" matter - matter that can be accounted for. This includes stars, dust, gas, and even black holes. About 23% of the matter is "dark matter", which makes itself manifest by its gravitational attraction - but that is about all we know about it. The remaining 73% is an even more mysterious "dark energy" - which somehow makes the Universe expand faster and faster.It is currently estimated that about 4% of the matter of the Universe is "normal" matter - matter that can be accounted for. This includes stars, dust, gas, and even black holes. About 23% of the matter is "dark matter", which makes itself manifest by its gravitational attraction - but that is about all we know about it. The remaining 73% is an even more mysterious "dark energy" - which somehow makes the Universe expand faster and faster.It is currently estimated that about 4% of the matter of the Universe is "normal" matter - matter that can be accounted for. This includes stars, dust, gas, and even black holes. About 23% of the matter is "dark matter", which makes itself manifest by its gravitational attraction - but that is about all we know about it. The remaining 73% is an even more mysterious "dark energy" - which somehow makes the Universe expand faster and faster.
A galaxy is a large system of stars, gas, dust, and dark matter held together by gravity. There are estimated to be billions of galaxies in the universe, each containing millions to trillions of stars. The exact number of galaxies and stars in the universe is still unknown due to the vastness of space and the limitations of current technology.
Stardust refers to the material ejected from stars, primarily composed of elements like carbon, oxygen, and silicon. Dark matter, on the other hand, is a mysterious form of matter that does not emit, absorb, or reflect light, making it invisible. While stardust is a known component of the universe, dark matter is hypothesized to exist based on its gravitational effects on visible matter. Their relation lies in the fact that both stardust and dark matter play significant roles in shaping the structure and evolution of galaxies, though they exist as distinct entities.