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Is there enough dark matter to halt the the current cosmic expansion?
Wiki User
∙ 12y ago
Not only is there not enough matter (dark or otherwise) to stop and reverse cosmic expansion, the rate of that expansion has been increasing over time.
It would appear that dark energy is achieving "victory" over all matter.
Wiki User
∙ 12y ago
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How does expansion and contraction of matter differ from a change in state of matter?
the matter always stays the same, expansion and contraction just means the matter is becoming more/less spread out from one another. A change in the state of matter is turning from solid-liquid-gas. The amount of matter always stays the same!
Is black hole a matter?
No, dark matter is not a black hole. Each one is a separate cosmic phenomenon. Use the links below to find out about each one.
How can a liquid expand without changing state?
A liquid can expand when thermal energy is absorbed which is known as thermal expansion, but the thermal energy is not enough to change the liquid's state. When there is enough thermal energy, the liquid may change to a gas if the particles move fast enough to escape the liquid or it may change to a solid if the thermal energy is released from the matter.
Where can you watch cosmic quantum ray?
Not unlike wind, the human eye can't see cosmic rays directly, but their effects can be made quite visible, using various techniques. In cloud or bubble chambers, the cosmic ray collides with sufficient energy to leave a visible trail, albeit somewhat briefly, but the path of the cosmic ray becomes easily apparent. In spark chambers a technique using charged plates can cause sparks to jump between plates when the path of a cosmic ray creates an ionization channel along its path. Other techniques involve materials which will generate light when a cosmic ray strikes its surface, which can trigger electronics to amplify or make audible. The word 'quantum' may be somewhat redundant in this context; remembering that a cosmic ray is actually made of of particles, be they protons or atomic nuclei traveling at high speed - they are really matter and not electromagnetic radiation as the name might suggest. Since matter does exist in discrete physical units or quanta, loosely one might say that all matter is quantized.
How were cosmic rays formed?
The formation and source of primary cosmic rays which originate from outside the solar system appears still to be somewhat mysterious and a subject of debate; some experimental evidence points to supernovae explosions as being one source but what fraction of cosmic rays comes from them is still a matter of interpretation. Other possible sources are active galactic nuclei or quasars, or gamma-ray burst sources. Because of the nature of cosmic rays -which are not electromagnetic radiation but particles, mostly ionized light atomic nuclei - the mechanism of the formation process itself would look to any event which can impart significant momentum to these particles of matter.
The expansion of matter when it is heated is known as?
thermal expansion
Which device is based on the expansion of matter as temperature increases?
Thermometer is based on the expansion of matter as temperature increases.
What name do you give to the theory for the origin of the Universe?
The Big Bang Theory is the name given to the theory of cosmic expansion. The idea is of an ever expanding universe. It posits that at some point all matter in the universe was contained within one point.
What is called the fine particles of matter in outer space form cloud?
cosmic dust
What type of radiation travels furthest through matter?
cosmic , x-ray and gamma
The expanding of matter when it is heated?
thermal expansion
Why do scientist think the universe will expand forever?
There is actually considerable debate about that. Some scientists believe that the universe (or at least, the part we can see!) is not massive enough to cause the current expansion to slow down and reverse, and other scientists believe that "dark matter" may provide enough mass to reverse the expansion.From a philosophical viewpoint, the idea of an "oscillating" universe - big bang followed by expansion, followed by contraction, followed by collapse, and repeat forever - is more appealing. But at present, the balance of the evidence seems to be against it.There is evidence that the expansion of the Universe has been accelerating. It is not known exactly why, and it is possible that the expansion may slow down again, but this doesn't seem very likely.
What is silver surfer?
The Silver Surfer is made up of the power cosmic. He and his board are pure cosmic energy, he has the ability to absorb energy from the entire universe. Matter and Anti-matter generate energy, energy that the Silver Surfer commands.
What is the leftover thermal energy from the big bang?
The radiation left over from the big bang is found in the microwave region of the electromagnetic spectrum. As the universe expanded and cooled, the intense hard gamma radiation that existed became radio waves in the low gigahertz region, characteristic of a temperature around 30 Kelvin.
What is the process of thermal expansion?
Thermal expansion is the tendency of matter to change in volume in response to a change in temperature.
Does dark matter/energy responsible for the expansion of the universe?
Yes. Dark energy is responsible for the expansion of the universe.
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.
