It would begin to collapse inwards towards its most massive points until finally it all met at one point, according to some theories.
The Oscillating Universe Theory is a cosmological model that combines both the Big Bang and the Big Crunch as part of a cyclical event. That is, if this theory holds true, then the Universe in which we live in exists between a Big Bang and a Big Crunch. In other words, our universe can be the first of a possible series of universes or it can be the nth universe in the series.
Gravity is a fundamental force in our universe that influences the motion and interactions of all matter and energy. It shapes the movements of celestial bodies like planets, stars, and galaxies, holding them in place and influencing their orbits. Gravity also plays a critical role in determining the structure of space-time according to general relativity.
Bounded? Do you meen as in what happens if the universe is in like a giant box and what happens when we fill up the box so it can not grow anymore?? Well I think that it might start contracting like a implosion, it gets smaller and smaller until it disapears. Or it might just do nothing. Or some how continue growing ( as the universe gets bigber the more stars and plants more and streach out...like if u had a blob of Bluetack and streached it out with a blob in each hand then the blob in your right and left hand would of streached apart. So anyway this is happening to our universe, which meens its happening to our galaxy, which meens we are slowly getting further away from the sun, over a few billion years we might all die because we get so far away). So if the universe had boundaries then i guess we would all die.
Gravity is a fundamental force in the universe that causes objects with mass to be attracted to each other. It is a result of the curvature of spacetime caused by mass. Gravity affects the motion of celestial bodies, keeping planets in orbit around stars and galaxies together. It also plays a key role in the formation of stars, galaxies, and the overall structure of the universe.
An open universe is a universe where all of the galaxies and stars and everything in the universe keep expanding with nothing stopping them. This theory says that the galaxies and stars will keep going further and further from the centre of the universe until everything dies off. This is the opposite of the closed universe theory where everything will expand, and then something will cause a turning point and everything will contract until everything there ever was will fit into a space the size of the dot at the end of this sentence. Then, possibly another 'Big Bang' will happen and start everything over again. :)
Expansion in the universe happens everywhere, as galaxies move away from each other due to the continuous expansion of space itself. This expansion is described by the theory of the Big Bang, where the universe started as a singularity and has been expanding ever since.
The Big Rip is one of the hypotheses for the end of the Universe. It has been observed that the expansion of the Universe is actually accelerating rather than slowing down. Based on this some scientists think the Universe will expand so fast that the fundamental forces, including gravity, will be overwhelmed and everything in the Universe will be "ripped apart". In other words, matter will disintegrate, and even spacetime may be destroyed, causing the Universe to cease to exist altogether. The Big Rip would not happen in an instant. Rather as the Universe expands it will go through a process of disintegration in which every stucture, from the largest galaxies to the smallest subatomic particles, will break down. The fate of the Universe depends on whether gravity or dark energy will win the "war". In the Big Rip hypothesis, dark energy accelerates the expansion of the Universe and overcomes gravity. If gravity "won" the opposite of the Big Rip would occur: the Big Crunch.
Yes; wherever in the universe there is mass like planets, stars of even meteors, there is gravity.
In a closed universe, the expansion will eventually halt and contraction due to the pull of gravity. Check out the 'Electric Universe Model'. It should provide more detailed explanations. Beware! It's a deep subject and one can get lost/confused. Take it slow to groc in fullness. (BTW The Closed Universe Model mostly proven false or highly unlikely.) It is understandable that you are having trouble understanding the closed universe theory since as has already been previously mentioned it is most likely not true. What I think most people struggle to grasp is why the universe can at present be expanding but then this sudden change occur where this expansion is not only halted but reversed. This kind of question rivals questions like why did the Big Bang happen. The truth is we don't really know why this might happen, but it was established as a possible answer since if it were true, we could then explain the Big Bang. It was a solution designed to dodge a question. See link for further information
It seems it won't happen. The expansion of the Universe is accelerating - instead of slowing down, it expands faster and faster.
According to it the universe will contract and all particles come closer look like a ball and burst again. But it happens with gravity but gravity not as strong as at time of bigbang. This is now the question.
This refers to the idea that after a period of expansion, the Universe will eventually contract again (due to attractive gravitational forces), return to a tiny point, and explode again in another Big Bang. This no longer seems likely to happen, since it has been found that the expansion of the Universe is actuall accelerating, not slowing down.
the universe is expanding. so in the future all the planets will loose gravity leaving their orbits everything will become a chaos
The Big Bang refers to the event that created the universe. It is not expected to happen again as the universe is already expanding and evolving from that initial event. However, there are theories like the Big Crunch or Big Rip which describe possible future scenarios for the universe.
Theorising that that will indeed happen, it will happen everywhere. The expansion and contraction of the universe is not about objects moving relative to each other through space, it's about space itself getting bigger and smaller. From the data we have at the moment, we expect the universe to expand forever.
First, we have no information on whether the universe will end, or if it will continue in perpetuity. It's either one or the other - and yet either answer would be astonishing. Second, we have no idea how the end of the universe might come about, or what the conditions at the end time would be, or if the concept of "after the end of the universe" has any meaning at all. One interesting concept is that of an oscillating universe; a Big Bang of expansion, with gravity overcoming everything in the end and pulling every shred of matter back to itself in a "Big Crunch". This could be the prelude to another "big bang". Each universe would be completely new and unaffected by the last.
That possibility has been considered before. The basic idea is that the Universe collapses due to gravity, and then expands again in the next Big Bang. However, there are several problems with that. For one, the Second Law of Thermodynamics would still apply. In other words, the next universe would be different from the current one, and the cycle could not continue forever. (Note: If you want to understand astronomy, a basic understanding of the Second Law is a must.) Also, this is not supported by observational evidence. For this to happen, the expansion of the Universe would have to slow down over time. The opposite is actually happening: the expansion of the Universe is accelerating.