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There are no definite answers with our current level of understanding of antimatter at this point but scientists believe that this is the result of an imbalance in the production of matter and antimatter particles in the early universe.
Another explanation for this phenomenon is that Antimatter may exist in relatively large amounts in far away galaxies due to inflation in the primordial time of the universe
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∙ 15y ago
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Why is there far more matter than antimatter in the visible universe?
It may have to do with the way the universe was created. Certainly if there was a lot of antimatter created, much of it may well have come in contact with matter through the billions of years the universe has existed. That would have resulted in the conversion of that antimatter (along with a like amount of matter) into energy. There may not have been much antimatter around to begin with, too. But, since the amount of visible matter represents less matter than has been calculated to exist in the uinverse, it may be that there is a good bit of antimatter out there somewhere. Not likely, but possible.
What can be possible reason for matter prevailing over antimatter?
well.. it might have something to do with that protons are bigger than electrons in matter and that works out better than antimatter where positrons are the smaller in mass.
What are two questions physicists have regarding antimatter?
1. Why is there more matter than antimatter in the Universe? Or: Why is there matter at all? (If there were the same amount of matter and antimatter, and it came into contact, it would quickly get destroyed. 2. If antimatter is so abundant, how come we've never come in contact with it or have been able to observe it?
What can be possible reasons for matter prevailing over the antimatter?
who knows, your guess is as good as mine, but i believe that matter isn't prevailing, maybe there are more antimatter than matter in some distant planet or something.
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.
Why do you live in a universe that is made of matter rather than antimatter?
This is not currently known. There does exist some asymmetry between matter and antimatter - meaning that they are not exact opposites in all aspects - but this asymmetry is not enough to explain why matter exists.
How could it B true that matter and antimatter at start of big bang With little amount of matter left in end winning B enough 2 make up all we see today?
In the early universe, matter and antimatter were created in equal amounts. As the universe cooled and expanded, there was a slight imbalance in favor of matter over antimatter. This allowed the matter to survive and form the structures we see today, while most of the antimatter annihilated with matter, resulting in the predominance of matter in the universe.
Does the universe contain antimatter?
Yes, the universe does contain antimatter, which does naturally occur, although in quantities much smaller than matter. The very slight bias of physical law in our universe towards towards matter instead of antimatter is a subject of ongoing research; some calculations indicate that for every hundred billion particles of antimatter created from the energy of the Big Bang there were roughly a hundred billion "plus one" particles of matter - the balance eventually annihilating each other during collisions, resulting in a universe almost entirely of normal matter. Regions of space currently rich in antimatter have been searched for without success to date. Very tiny amounts of light antimatter particles do exist in cosmic rays; radioactive materials can spontaneously produce antimatter particles when they decay; and it can be produced in particle accelerators.
What is made when matter and antimatter collide?
They annihilate each other, releasing a relatively large quantity of energy, which can be calculated using the formula e=mc2, where e is the released energy in joules, m is the mass of the particles in kilograms, and c is the speed of light in metres per second
How much antimatter have humans ever made?
We have created 20 nanograms of antimatter. To get you on track, one nanogram is a billionth of a gram. Antimatter is very hard to make, so far only a very small quantity has ever been produced; much less than a milligram has ever been produced and yes there is a way to store it. It's called the penning trap. The penning trap is a container in extreme vacuum and magnetic fields. This is to prevent the antimatter from touching air, since air is made of matter.
If an antimatter star went supernova near your solar system would it be any different than a regular supernova?
The observable universe is almost entirely matter (as opposed to antimatter) so it's unlikely that a cloud of antimatter large enough to form a star could exist long enough to form a star anywhere near the solar system; it would be annihilated by collisions with neighboring normal matter. Ignoring that, though, yes, there would be differences. The ejecta of an antimatter supernova would be primarily antimatter, meaning that it would annihilate nearby normal matter and give off massive amounts of gamma radiation that would not be seen with a normal matter supernova.
What are the disadvantages of antimatter?
The main disadvantage about antimatter is that it must be held away from its "ordinary" particle, preferably in a vacuum. This is because when they come into contact they completely eliminate each other. It's like if you add 1 with -1 it makes zero. However, if held properly, it can be excellent for research as we currently know very little about it. For example we don't know why there is so much more ordinary matter than antimatter.
