do you know that the universe is unsteady now and stars is collapsing?
145689
*Poking lordfarhad.rahimi* Please only post a question once...\n\nFar as the universe being unsteady, yes of course it is. That is the nature of the universe, it is not a steady, static thing. It changes and is chaotic. That is part of the beauty of our universe.\n\nNow, as to stars collapsing. Yes indeed they do, that is part of the life cycle.\n\nStars are born in nebulae. Huge clouds of dust and gas collapse under gravitational forces, forming protostars. These young stars undergo further collapse, forming main sequence stars.\n\nStars expand as they grow old. As the core runs out of hydrogen and then helium, the core contacts and the outer layers expand, cool, and become less bright. This is a red giant or a red super giant (depending on the initial mass of the star). It will eventually collapse and explode. Its fate is determined by the original mass of the star; it will become either a black dwarf, neutron star, or black hole.\n\nOur own sun will become a black dwarf in a few billion years...\n\nOn a side note, the universe itself is not collapsing, never fear. It is expanding and getting larger all the time.\n\nI've added some links that have great diagrams of this fascinating topic below.
1130955
The universe will end when the sun and all the stars collapse and engulf everything killing everything and sucking it all into a dot. We will all be dead, so it doesn't matter what happens after that. Of course, we still have a few billion years before that happens, so I wouldn't worry about it. Besides, I believe the Lord will return before then, but the universe will not end at that time, only change.
188040
Absolutely.\n\nIt is now thought (and even more radio telescope survey evidence on this has just come in) that at the very beginning of things (the Big Bang) there was nothing but energy. As the Universe expanded and cooled, elementary particles were formed from that energy, and some time later, things cooled enough for atoms to form and stay together. Since it takes force to push protons together (to form nuclei of the higher atomic number atoms), and the force wasn't available, only hydrogen (and a very small amount of helium and perhaps an even smaller amount of lithium -- the simplest atoms) resulted.\n\nLots of hydrogen, distributed in a sort of clumpy manner, will eventually collapse into stars. Large stars burn through their available fuel relatively quickly, all the while forcing together protons into more complex atoms such as carbon and oxygen and silicon, and so on. When these large stars go nova, they spray a good part of themselves into interstellar space where the material is incorporated into newly forming stars or collected into clouds around them. As those clouds collapse into planets (which must be very common as we have now seen some hundreds of them around stars in the local area in our galaxy (ie, within a few hundred light years)), the non-hydrogen material in them is actually star stuff. Probably not really dust particles in most cases, but...\n\nAnd that's how it was. Fascinating stuff.
49948
the same thing thats on this side. new matter is not being formed it is just expanding from the force of the big bang all those millions of years ago. Some scientists say the expansion will eventually stop and the universe will collapse onto itself, and then maybe explode again. All theories so in effect we dont know.
65553
The problem here is that you are not visualizing this accurately (and humans might not be able to do so easily). All of our universe's space and time, until it expands, does not exist. \n\nThere might be other universes, or other dimensions, but we really only have theories about those, and we do not have good methods for testing these hypotheses yet, and we might never have them.
915186
Since the big bang was an explosion OF space rather than in space, your logic will not work.  Wherever you are in the Universe, everything is going away from you.
1064148
No, the entire known gravitational forces of the universe will collapse
274902
oscillating universe\nIn astronomy, theory stating that the gravitational attraction of the mass within the universe will eventually slow down and stop the expansion of the universe. The outward motions of the galaxies will then be reversed, eventually resulting in a ‘Big Crunch’ where all the matter in the universe will be contracted into a small volume of high density. This could undergo a further Big Bang, thereby creating another expansion phase. The theory suggests that the universe would alternately expand and collapse through alternate Big Bangs and Big Crunches.
670386
Count it's rings.\n\nSeriously, it's very difficult to know for absolute sure.  BUt recently scientists..cosmologists to be more precise...believe they are 95% certain of this...\n\n"In a study published today in the journal Science, a team of researchers says the universe is between 11.2 billion and 20 billion years old."\n\n"The new calculations, by Lawrence Krauss of Case Western Reserve University and Brian Chaboyer at Dartmouth College, involved new information about old star clusters in our galaxy and a better understanding of how stars evolve. It was based on when stars are thought to end the main sequence of their lives, a point at which they've used up the hydrogen that fuels thermonuclear fusion and therefore begin to dim."
962536
There are two possibilities. \n1. Eventually, all the stars burn out (this will occur in phases because different kinds of stars will take different amounts of time due to size).  Some are large enough they will supernovae and collapse into black holes.  Black holes eventually evaporate and cease to exist.  Eventually, matter itself will decay and the universe will essentially be dead.\n\n2. Another theory is that whatever caused the Big Bang is still causing the universe to expand at an even greater rate (some evidence is supporting this).  Eventually, this will cause the universe to literally rip apart (this theory is called the "Big Rip").  It will occur over large areas at first, causing clusters of galaxies to splinter off, then galaxies themselves will come apart, freeing starts, etc. to go off on their own.  The rip will continue to occur at smaller and smaller areas, going to solar systems, stars and planets, then individual atoms, and subatomic particles.  All of this occurs exponentially.  When the smaller objects begin to rip apart, it occurs faster and faster.  When planets rip apart, it may be less than a month before the atoms themselves are ripped apart.  \n\nEither of these will occur over a period of billions and billions of years (as Carl Sagan would've said) and long after the earth itself is gone.  The first scenario, though, will take much longer than the second.
1071435
With no universe, there will be no space-time in it.  So, there will be nothing to "stand still".  \nBut, that whole heaven thing sounds okay and it's been the most successful and profitable business on the planet for quite awhile, so they must be right.
48909
There are multiple possibilities:\na) The universe stops expanding, starts collapsing, and squishes back together (the "Big Crunch" theory)\nb) Basically the Big Crunch theory, except it states that  the universe will "bounce" back out again (the "Big Bounce" theory)\nc)The universe will eventually even out in temperature, and effectively freeze over, so no stars can shine (the "Heat Death" theory)\nd)Vacuum energy will eventually become so strong that every atom in the universe will tear at the exact same moment into traces of radiation (the "Big Rip" theory)\ne)Protons after 10^100 years will decay, leaving the same result as in the Big Rip ("Proton Decay")\n\nNote: Possibility "e" will happen regardless of any other of these possibilities, even though 10^100 years is a rrrreeeeaaaallllllllyyyy long time.
671474
Define "any time soon."  \n\nThe Andromeda Galaxy is on a collision course with our galaxy.  The two will run into each other and merge to form a single galaxy.  Of my two sources, one says three billion years from now (UToronto) and one says five billion (Hayden).\n\nIf it is more like five billion, that will make it the least of our worries.  Our current estimates for the lifespan of the Sun is about five billion years, and since after that time we can expect the Sun to become a red giant and swallow Mercury, Venus, Earth, and Mars, if you want humans to be around to watch, you need to support a viable space program.  \n\nIf it happens sooner, there may be intelligent terrestrial life around to watch it.  Very slowly, the Andromeda galaxy will appear bigger and bigger in the sky.  It will merge with the Milky Way galaxy, and we will see two arches of stars (like our current Milky Way) in the night sky.\n\nThis will cause some gravitational fluctuations, and stars will get thrown around.  (When I say thrown here, I mean in a process that happens over hundreds of millions of years.  No one is getting whiplash over this.)  What happens to Earth depends on where we end up.  Our Sun and its planets may end up getting thrown out of the galaxy, in which case we will have a very dark night sky.  We may end up getting thrown deeper in toward the galactic center, in which case the sky will get much brighter at night.  In fact, the galactic center is home to so many giant stars that we might get several supernovae per year from stars so close that would light up the night sky as if the Sun were shining.\n\nIf I could invent time travel, I think that's when I'd like to go.
838318
cosmic chemistry that is what is going on. take your time
1149831
So far our observations are leaning more towards open, because our universe is expanding at an accellerating rate, and it shows no sign of slowing, if it were closed (which we havent found enough matter in the universe to help this theory) then the expansion would slow, come to a stop, and come back and collapse back in on itself. But so far evidence is telling us it won't.
883274
From what I understand a singularity arises from a dead star that collapses and that forms the sigularity
830256
The universe is still expanding and speeding up, faster and faster.  The outskirts of the universe can boggle the mind.  It has been thought that the mass of the universe would eventually stop the outward push and eventually draw it back to implode in on itself, then repeat.  Like a thirty billion year old flower.  Now it is believed that the universe will die a cold death with the universe continually speeding off in all directions.  Maybe we will run into another universe that is moving towards our own.  And no we will not fall off a cliff, the universe is expanding at a uniform rate in ALL directions.  There will be no drop-offs...