If 99% of an atom is emptyness, does tha mean that 99% of universe does not exist?
207853
An atom has a closely packed nucleus and orbitals that extend far outward filled with electrons. The entire set is an atom, when you get down to the subatomic level, there is a lot of empty space, similar to how our solar system has massive central star with comparatively miniscule planets around it. Without the empty space though, we'd be incinerated by the sun. The same way an atom has space between the neucleus and the orbitals. The entire atom, extra space and all, still exists.
598361
I think you have it backwards.  The macrocosm reflects (to a degree), the microcosm.\n\nAt present, no-one knows if there are other universes.  My suspicion (not belief, just suspicion) is that everything that is possible is in some sense actual.  My other suspicion is that nothing is actual at all, so there is nothing to prevent the existence of everything.  Yes, that's a contradiction, but we're allowed to contemplate them once we step outside the bounds of what is knowable.
363612
Sometimes, when people cannot fathom or answer an issue, they turn to blind faith for that answer.  That is not the scientific approach and, carried to extremes, such blind faith can lead to the Dark Ages when very little was done to advance mankind's knowledge.\n\nThat being said, string theory can lead one to conjecture about the pre-big bang.  (I like your "big suck" idea by the way.)  String theory conjectures the possibility of parallel null universes, devoid of observable mass-energy as we know it.  Then, according to the theory, two of these big nothings collide.  Since they have an eternity to do it in, one can even show (using simple probability) at least one such collision is likely over an infinity (eternal) number of attempts.\n\n(If the concept of two "nothings" colliding gives you a headache, join the crowd.  Nothing, however, is only nothing in our limited four dimensional observable universe.  String theory goes up as high as eleven dimensions; so if these null universes exist in these higher dimensions, they would seem to be nothing to us because we cannot see beyond four dimensions.)\n\nSo two null universes collide.  When they do, the collision releases a lot (I mean A LOT) of energy (and mass, its all a jumble in the beginning).  That released energy-mass is what we on Earth now call the "big bang."\n\nThe last part of your question, re another big bang in our universe, is also a possibility according to string theory.  There is no reason to limit our null universe to just one collision with another null universe.  We can say "at least" one collision, because we live in one of the results.  \n\nBut there could very well be others, where our null universe has collided with other null universes, and not necessarily the one our null collided with to create the observable universe we live in.  Which brings up the possibility that other observable universes in our null universe might be totally different from our own.
300501
The universe is an indefinite entity.It is bounded by 'nothing' even in the strict sense of modern physics.
218886
nothing. even the vacuum of space has energy flowing through it. So, in theory, a perfect vacuum is nothing.
647015
I believe it. I also believe in the theory, in which, as you may also know, whole cosmos is going to turn back into that extra atom. What I wonder alot, when the expansion of the universe will stop and start to shrink back :=)))
155351
There is no "outskirt" to the universe-Each point is the center, just as every point on the surface of a sphere is a center.  One of the primary engines of motion is gravity, which is a warping of space/time.  There is a "thing" we call space/time, which has certain properties, but not necessarily substance (as mass, for example).  According to current theory, at the sub-quantum level, there is a bubbling of space/time in which energy is created and destroyed, but it exactly evens out-the "zero-point" energy.  So, yes, there is a thing called space-time which allows things to exist, but no, there is no outskirts of the universe.
613182
The Universe itself doesn't necessarily need something to hold it together, it just is.  \n\nAs far as what's outside the Universe, science cannot answer that question, so it is left to speculation.\n\nMy opinion: the Universe exists within the realm of God, so the spiritual world is outside of it, but that is just an opinion, not fact!
383846
You asked a very good question. The fact is that vacuum or "empty space" is NOT empty at all. Scientists have recently confirmed that vaccum contains "energy" and the energy density has been measured to be on the order of 10^-29 grams per cubic cm or 10^-47 GeV^4.\n\nSince we all know that mass and energy are equivalent through Einstein's Special Relativity, so we can certainly say that vacuum contains some form of "matter".\n\nBTW, it has also been confirmed that the majority of our Universe's mass/energy density is due to the mass/energy density of the vacuum. As a matter of fact, vacuum is rsponsible for 73% of it. This vacuum energy is also called "Dark Energy".
261569
Ok...we don't know how big the entire universe is. It may well be infinite, which, assuming it is homogeneous, would mean that it has infinite mass. At any rate, physicists currently think it is "much larger" than the observable universe. How much larger? I don't think that they have any evidence. But let's assume that we can see 1% of all visible space. This would make the mass of the universe = 100 * 3 * 10^52 kg, or 3 * 10^55 kg.
449922
We already now know that the birth of our Universe may very well be a random quantum fluctuation, and that these quantum events are based on probability, not "cause and effect".\n\nBut the human drive to discover the "Ultimate Truth" is not contigent upon there being a sensible answer, or even an answer. It is simply not enough to just exist, or accept what has been given to us (as someone has suggested). If God exists, then God has given us the desire to seek knowledge, wisdom, and truth. To know the Universe is to know God.
625221
everything is made up of energy so if space is infinite then something must be there and if something is infinitely there then energy would be infinite
221514
The universe is theorized to contain dark energy and dark matter. There have been some confirmation of it's existence but really just speculation at this point. The idea of dark matter had been identified by Einstein but it wasn't till the discovery that the universe is accelerating it's expansion and contains up to 70% more matter that the idea of dark matter and energy became serious areas of study. If you mean a vacuum to mean absence of air it is a vacuum but within that "vacuum" there definitely is matter.
574566
Space doesn't exist. There are things IN space. Matter makes up the stars and planets and gasses and eveything you see. Everything you DON'T see, I.E. the large black void, is nothing. There is no matter or antimatter or anything there. It's just....emtpy. Therefore, it doesn't exist. Only the things in it exist.
419186
All the matter in the Universe was created as part of a "matter/anti-matter" pair out of the vacuum of space during the Big Bang. But there was a very slight imbalance, like 1 particle out of a billion survived and did get not annihilate with its anti-matter pair (not the huge imbalance the others have led you to believe).\n\nThis imbalance is due to a process called "Symmetry Breaking" or "CPT Symmetry Violation." This is a well understood process, not exactly a big mystery. (The mystery is why is there this asymmetry, not how this asymmetry happened.) Also, the fact that baryon numbers are not conserved in our Universe is not a big deal, because there is no reason to believe that it should be. The concept about baryon number conservation is very much outdated.\n\nGiven that all the matter came from a "matter/anti-matter" pair meant that all the matter in the Universe did not require any net energy to be created. As a matter of fact, most of the energy in the Universe is tied up in the vacuum as "Dark Energy" or "Vacuum Energy" (this makes up about 74% of the energy density in the Universe).\n\nI would say most physicists view the relationship between matter and energy as two manifestations of the same thing, somewhat like water and ice, where ice is just another phase of water.  Similarly, matter is just another "form" of energy, but more concentrated.\n\nYour mathematical interpretation of the matter-energy relationship as an integral compared to derivatives however doesn't make too much sense, because Einstein has already given us the mathematical relationship (and this has been tested and verified via nuclear bombs) E = mc^2, which tells us how much energy is locked up inside a piece of matter with mass, m.
102973
Atoms do have empty spaces but these spaces are according to their size not ours let me elobrate first that we are not composed of atoms we are composed of cells if any one says atoms then tell that person that atoms are non living whereas cells are living some part of our body are dead cells like nails hairs dead skin at the knuckles etc but the rest is all living cells.\n\n\nThings don't fall through other things because they are levitating on an electrostatic field! I am not kidding! When you sit on a chair, you are not really touching it. You see, every atom is surrounded by a shell of electrons. This electron cloud presents a rather negative face to the world. Remember that like charges repel each other. When two atoms approach each other, their electron shells push back at each other, despite the fact that each atom's net charge is 0. This is a very useful feature of nature. It makes our lives a lot easier.\n\nNow the question you should be asking is, if atoms push away from each other, why doesn't the entire universe just blow away from itself? The answer is that some, actually most atoms' electron shells are not full. When two atoms come together and have empty spaces in their electron shells, they will share electrons to fill in the spaces in both of their shells. Yes, the electrons really do go back and forth between atoms and they do so pretty fast. Electrons tend to be kind of mobile, which is also a very nice feature of nature, since without it your walkman would not work. Once both atoms' outer shells are full due to this electron sharing, they go back to their usual repulsive behavior. This, by the way, is how we get molecules and the secret to understanding Chemistry. It's all about the electrons!
214244
"Matter can be neither created or destroyed" is an old saw from pre-Einstein physics.  Matter is continually being transformed into energy in every star in the sky in accordance with E = mc^2, so in that sense, there is certainly less matter in the universe now than when I started typing.  However, (I think) the equation is reversible, so the energy can be transformed back into matter, so maybe the answer is there has always been a constant amount of matter/energy in the universe.