Is the "darkness" in space considered "anti-matter"...?
819712
According to some recent research in the field of astrophysics, antimatter are particles that have the opposite charge of the particle that it corresponds to. For example, the antimatter of protons are anti-electrons (some refer to it as prolectrons) while for electrons are protrons. Theoretically, this types of particles no matter how illogical it sounds NEED to exists in nature for the sole reason of maintaining the law of conservation of mass. The way antimatter preserves this very essential law because constantly --- according to Quantum physics --- new particles pop out everywhere. Because this phenomenon defies the law of mass conservation and HAVE to exists in nature for it to work properly, antimatter need to fill in the gap. When new particles constantly pop out and disappear (the life of a particles can extends from a billionth of a second to infinity), antiparticles "bond" with them to neutralizes tha charge. For example, let's say a particle that has a positive charge appears out of nowhere in space, the antiparticle (which is a negatively type charge of the positively charge particle) "bonds" with the positively charge particles for their charge to become zero (1 + -1 = 0).\n     The darkness in the sky are nothing but void. It is just a space where nothing exists except particles poping out of nowhere. Also, it is a common misconception that the darkness in space are called dark matter because of what the name implies. However, dark matter in plain astrophysics definition (shortened) are matter that had been the product of the "creation" of the world and all of its after affect. For now, theses matter cannot be seen by our eyes nor any telescope out there, but it can be seen through complex geometry and calculus.\n     Light is considered to be a particle that has both the characteristic of a wave and particle. We call these characteristic as wave particle. \n     Also, as a side note, it's true that time doesn't exists in reality, but it DOES exists in its own different dimension. If you want to know why, post a question.
1021193
No idea what you mean by your comment.....\n\nIn cosmology, dark matter refers to matter  of yet unknown composition, that does not emit or reflect enough light to be detected directly. But its presence may be inferred from gravitational effects on visible matter such as stars and galaxies. \n\nEvidence suggest that there is much more dark matter than visible matter. As it is non-interacting with light it must be of non-baryonic origin. It also must be stable, because it exists since the Big Bang, 14 billion years ago. The only candidate among the elementary particles we know already are the neutrinos. However there are theories like Supersymmetry that predict other particles, that would fit the known data.
480431
Yes. Part of the idea of antimatter is in some equations containing squares, to solve for that variable you must have a positive and negative answer. Therefore an opposite or anti- thing must exist. Antimatter in this case. So if the E=mc^2 works for matter than it should work for anti-matter.\n\nHowever, as the theory of antimatter states - rather than be like matter where something travelling the speed of light can produce matter and mass, the antimatter will become energy and destroy mass when it comes in contact with matter. \n\nHope that makes some sense. Antimatter is an annoying thing.
919946
There is no reason to believe that there weren't equal amounts of matter and antimatter after the big bang. However, there is a difference between the way matter and antimatter interact. It has to do with a complex symmetry in physics called CP (charge-parity).\nThe difference allowed abut one in every billion matter particles to avoid annihilation.
1045984
No one knows the answer to that. However, matter seems to cause a "dent" in space. The greater the mass of this matter, the greater the "dent" it creates. Other matter (with less mass) gets influenced by matter with larger dents. This causes small matter to orbit and free fall toward big matter.\n\nHowever, is this "dent" magnetic or electric? No one knows. However it is a fascinating thing to ponder!
179527
No, neither. When matter and anti-matter get together you get a lot of gamma rays, and assorted other known particles. This has been observed many times in the larger particle accelerators. Nobody knows what dark matter or dark energy are made of, but we do know they aren't made of the things we've detected in our accelerators yet.
699842
In particle physics, antimatter extends the concept of the antiparticle to matter, wherein if a particle and its antiparticle come into contact with each other, the two annihilate —that is, they may both be converted into other particles with equal energy in accordance with Einstein's equation E = mc2. This gives rise to high-energy photons (gamma rays) or other particle–antiparticle pairs. The resulting particles are endowed with an amount of kinetic energy equal to the difference between the rest mass of the products of the annihilation and the rest mass of the original particle-antiparticle pair, which is often quite large.\n\nAntimatter is not found naturally on Earth, except very briefly and in vanishingly small quantities (as the result of radioactive decay or cosmic rays). This is because antimatter which comes to exist on Earth outside the confines of a suitably equipped physics laboratory would inevitably come into contact with the ordinary matter that Earth is made of, and be annihilated. Antiparticles and some stable antimatter (such as antihydrogen) can be made in minuscule amounts, but not in enough quantity to do more than test a few of its theoretical properties.\n\nThere is considerable speculation both in science and science fiction as to why the observable universe is apparently almost entirely matter, whether other places are almost entirely antimatter instead, and what might be possible if antimatter could be harnessed, but at this time the apparent asymmetry of matter and antimatter in the visible universe is one of the great unsolved problems in physics. Possible processes by which it came about are explored in more detail under baryogenesis.
836797
If you are asking about anti-gravity cos you've seen an episode of star trek who's anti gravity engines run on anti matter then the answer is NO.\nI saw a program on the Sci-fi channel a few years back and an American guy had made a circular pad with about 1 metre radius which once turned on you could put any thing on it and it would just float in mid air, this guy just built it at his own leisure.\n\nThe question of moving at light speed is impossible for nearly anything except light, scientist now believe that it would be more feasible to bend space around an object so it would instantaneously leave one point in space and reappear in another
1154361
Hi Decisiveliu\n\nThe most recent observations indicate the following:\n\n* about 70% of the energy density of the universe is dark energy (for physicists this is an omega value of 0.7, where omega is the ratio of the actual density to the critical flatness density)\n* about 30% (omega = 0.3) of the energy density is normal mass-energy\n\n* of this 30%, about 27% is dark matter, and the remaining 3% is baryonic or luminous matter\n\n* about 20% of the total dark matter mass is likely to be massive neutrinos (small weakly interacting particles), about 10% large non-luminous objects (eg black holes, neutron stars, brown drawfs, etc) and the remainder unsure as yet\n\n* of the visible matter the vast majority is hydrogen (as suggested above), followed by helium, and then (relative) traces of other elements.\n\n\nHope this helps!\nThe Chicken
287958
If Anti- Gravity means repulsions between two gravitational masses;then the answer to this excellent question exists.\nFirst if we look how gravity affects atomic elementary particle we could understand anti-gravity.\nThere is a point lets say where the gravity field between the electron and proton intersects in such a way that a repulsion occurs.This shows that no two particle can actually come togheter and stick to each other.So particle integrity is maintained.The phenomena of anti gravity is real.This is in full agreement with experiments in qunatum mechanics, which have shown repulsion between particles.
703456
I don't know what exactly is your question! If anti-gravity could be manipulated ever, i think if would be very useful for us, maybe even in interstellar travels.
85426
nothing what's the antimatter with you! seriously though if you mean antimatter, it's a form of matter in which most of it's properties are reversed.
727032
It has been long speculated that there exist a type of matter called "negative matter." Note this is NOT anti-matter, which behaves just like ordinary matter except it has equal and opposite charge and spin. "Negative matter" exerts repulsive gravitational force. It does not annihilate when in touch with ordinary matter, but it actually is NEVER in contact with any ordinary matter due to this repulsive or anti-gravitational force.\n\nThe concept of "negative matter" was introduced by physicist "Kip Thorne" back in the 1980's as one possible solution to Einstein's General Relativity equation that allows for time travel through a worm hole. One way to contruct such a time machine is to put together two parallel plates that will leverage the Casimir Effect and create the "negative pressure" the others have mentioned to enlarge the quantum wormholes that exist at the Planck scale, and then use large quantities of "negative matter" to keep the mouth of the wormhole open and stable.
214575
It is true that nobody knows. It is false that theories on the origin of matter are wild speculations. See an earlier post I did today on an almost identical question for a reasonable theory for the origin of matter out of nothing.\n\nIn short, the fact is that matter appears out of nowhere all the time. There's is no reason to think it could not do a slightly more extreme version of the same thing if the vacuum state were changed a little bit, ie. its energy density was increased.
887030
Basically, it has to do with opposites. Every particle of matter has an opposite particle of antimatter. When these two come in contact, they annihilate eachother.\n\nIf every particle of matter were to find it's specific particle of antimatter, the universe would cease to exist. Theoretically.
246692
It's hard to speculate about that...But from all the books I've read on that subject none of them mention that. They do mention that dark matter exists, but that's about it.
805625
Time is completely relative.  It bends with the curvature of space.  Space is the absence of matter and is what separates matter from matter and matter from anti-matter.  Anti-matter is the opposite of matter and is responsible for anomalies like black holes and is believed to be the center of galaxies.  Anti-matter and matter form energy when they combine.  So far as we can tell, it looks like a giant flash of light when this occurs.\n\nTo answer your question:\nWhen time is removed from the equation, everything comes to a standstill.  It would be the same if you took away energy.  There would be nothing but stuff standing motionless.  When space is removed from the equation, all matter and anti matter are combined and as a result, pure energy is given off as a byproduct.  If matter is removed from the picture, the only thing that would be left is anti matter, space and energy.  Everything would be dark because there wouldn't be anything to give off light, but there would still be gravitational forces at work.