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We don't know the EXACT fraction of the observable Universe that is anti-matter, as opposed to the matter that constitutes our galaxy. We do know, however, that this fraction is quite small. If there WERE large sections of our Universe that consisted of anti-matter, the bounday layer between that section and the matter sections would have collisions between matter and anti-matter, and this would result in gamma rays coming from those collisions. Yes, it would be very few collisions and very rare gamma rays -- the density of inter-galactic space is a mere one atom per cubic meter-- but the gammas should be detectable. In thirty years of looking for them, we haven't found them. From this are pretty much forced to conclude that the entire observable Universe consists of the same matter stuff of our Local Cluster.
What else can I help you with?
What is the only concept in the universe that cannot be truly classified as a form of matter?
Anti- Matter
Did the big bang start from anti-matter?
No. As a matter the fact, the ABSENCE of anti-matter in our Universe is a problem scientists are still trying to explain. We know that anti-matter is almost non-existent here, but our present theories can give no reason why that should have happened -- any more than our present scientific theories can explain where lightning comes from. In both cases, scientists are working on developing better theoretical understanding.
What is the anti-universe?
The anti-universe is a theoretical concept in cosmology suggesting the existence of a universe composed entirely of antimatter. It arises from certain interpretations of the Big Bang and the symmetry between matter and antimatter in particle physics. In this framework, the anti-universe would mirror our own universe, with opposite charges and properties, potentially existing alongside it in a way that is not currently observable. This idea raises intriguing questions about the nature of the cosmos and the fundamental laws of physics.
Why is there only matter not anti matter?
They are mirror images of the other: protons have a certain weight and are positively charged, anti-protons have the same weight but are negatively charged. Antimatter is just matter with an opposite charge.
Is there a large enough quantity of anti-matter to destroy the universe?
Theoretically and mathematically... yes. According to Newton's law every time there is an action, an equal and opposite reaction will occur as well. Meaning every time there is an even in space that creates matter, the same amount of anti-matter will also be created.
What is the matter antimatter reaction called?
When matter and anti matter is combined, they are both annihilated, so it is called annihilation. This is why physicists are so confused - we don't know why there is matter left in this universe, if matter and anti matter were both created in equal quantities in the big bang.
Are elements matter?
Yes. not only elements all particle in the universe are matter. From Sambit Pal India. *********************** Anti particles are not matter they are anti-matter.
What is the only concept in the universe that cannot be truly classified as a form of matter?
Anti- Matter
Did the big bang start from anti-matter?
No. As a matter the fact, the ABSENCE of anti-matter in our Universe is a problem scientists are still trying to explain. We know that anti-matter is almost non-existent here, but our present theories can give no reason why that should have happened -- any more than our present scientific theories can explain where lightning comes from. In both cases, scientists are working on developing better theoretical understanding.
Who created anti-matter?
No one, its forms when another particle in a different universe is made.
Is it possible that the other 50 percent of missing antimatter comprises the matter inside the black holes at the center of a galaxy?
One of the unsolved questions about our Universe is why it is composed almost entirely of matter. In our understanding of our Universe, the ratio of matter to anti-matter should be about 50-50. Saying, "All the anti-matter went into the super-massive black holes (smbh) at the center of galaxies" doesn't solve very much. It just leads to the question, "Why did only anti-matter go into smbh, and not matter?" There is SOMETHING about our Universe that favors matter over anti-matter. We just don't yet know what that something is. Simply saying that it is something that makes anti-matter, but not matter, go into smbh doesn't really solve much.
Is there a large enough quantity of anti-matter to destroy the universe And where is it located?
It seems the Universe consists almost entirely out of matter - that is, there are no significant amounts of antimatter. Why there is more matter than antimatter is an unsolved problem.
What was destroyed within the first seconds after the big bang?
Virtually all matter and anti-matter were annihilated shortly after the universe started expanding. Only a fraction of a percent of all matter survived that annihilation, and virtually no anti-matter.
Why are you in this universe?
I am in this universe as the other contains my anti-matter self. If I were to meet my anti-matter self, we would both annihilate immediately. Also the collective atoms that make up myself all originated in this universe. The universe contains the same number of atoms always, at least this one does. So I will be always be here in some form or fashion. Hopefully form!
What was there in the universe when it began?
Sub-atomic particles of matter and anti-matter, that all clumped/combined to form various things... That is the best I can describe it...
What is the fundamental difference between dark matter and anti-matter, and how do they interact within the universe?
Dark matter is a mysterious substance that does not interact with light, while anti-matter is the opposite of regular matter in terms of its particles' charge. Dark matter affects the universe's gravitational pull, while anti-matter can annihilate regular matter upon contact, releasing energy.
What does the big bang theory not explain?
Why our Universe is composed almost entirely of matter, with almost no anti-matter in it.
