/sci/ - Science & Math

All of the galxies will recede until the only stars we see are from the milky way. Then the stars in the milky way will die, eventually contaminating the primordial hydrogen gas so much that stars can no longer form. Then slowly all mass in the galaxy will spiral into the supermassive black hole, over trillions of years.

furries

What is the universe maaaaaaaan?

Space will keep expanding. First all the galaxies and clusters and such will become seperated from each other and will never be able to come in contact again due to this expansion. The same thing will happen to things like star systems and eventually even the smallest particles will be ripped apart by the so called 'dark energy' which is driving this expansion.

Why do people phrase questions like this, I'm sure the OP doesn't actually think we know for certain how the universe is going to end?

So why don't you ask:
what are some possibilities of the fate of the universe?
Or, what's the most possible outcome?
or something like that.

Yes, I'm really complaining about this. Get over it.

Heat death.

>>2078626
Expansion of space has no effect in gravitationally bound systems.

>>2078633
Can someone clearly explain what this means, and all that it implies?

>>2078639
Not yet, but once the 'lambda force' gets more dominant it will.

The concept of "fate" implies that time is static. Everything that has happened and will happen lies on that axis of the universe (which refracts infinitely through the mulitverse at this moment in "our" universe). Ergo, the universe is, and has always. lrn2 11 dimensions.

>>2078651
Inside gravitationally bound systems, omega_matter wont change. Omega_radiation definitely will, but it's only of the order 10^(-5). Omega_Lambda will not dominate gravitationally bound systems.

Entropy causes the universe to expand faster and faster, with spacetime not being bound in it's expansion by the effects of mass. Things eventually start spreading so fast that all of the individual pieces of matter start to break apart, releasing as energy.

Once all of the mass in spacetime is turned to energy, the drag of the first three dimensions on the fourth stops (no mass = no gravity, no time, no heat, no movement) and absolute zero is immediately reached everywhere in spacetime uniformly. This causes all of the information in the universe, now in the form of energy, to stop and cool instantly - turning ALL of the energy back into mass (energy is gone). Uneven distribution of this newly formed mass causes the now returned gravity to be able to take hold. All of the information which is now in the form of matter again, over the course of however many billions/trillions of years, collects at a single point (wherever mass accumulated the most the fastest).

Once all of the information that makes our universe returns and reaches the point of singularity, it expands outward again as pure energy.....which eventually cools into matter. Stars start to form and begin producing the heavy elements again; and a new universe is slowly born.

Entropy causes the new universe to spread apart as it ages, and the process begins again.....

That theory is a popular, and reasonable one, within the branch of cyclical thinking. If you don't buy the cycle thing; then it becomes simple - spacetime is going to expand forever into infinity, and ultimately everything is just going to fizzle out. All of the individual components of our universe would, by the laws of quantum mechanics, eventually fizzle out.

There is a lot of retard in this thread, beware. Anyone who has studied cosmology knows that the benchmark model leads toward an asymptotically infinite universe. That being said, gravitationally bound systems are not affected by this expansion (Dark energy is a constant density; Matter-Energy density is constant). There is NOTHING in cosmology pointing towards a perfectly entropic universe; that is: the particles inside gravitationally bound systems will never separate completely and leave the universe a sea of elementary particles. Gravitationally bound systems are: Solar system, Galaxy, Galaxy clusters.

Heat death refers to the expansion of the universe reducing the energy density to zero (asymptotically). Again, this is a limit; the universe must conserve all of it's energy; just not its energy-density.

Heat death; that's the current understanding of the information gathered to date, if I'm not mistaken.

>>2078701
Hmm...big crunches are a rejected hypothesis are they not?

>>2078772
Yes they are, not enough matter in the universe for it to happen.

Today, humanity controls Earth
In 100 years, humanity will control the inner solar system
In 500 years, humanity will control the outer solar system including the Oort Cloud
In 2000 years, humanity will control the nearby solar systems such as Alpha Centauri
In 100,000 years, humanity will control a fraction of the Milky Way.
In 1 billion years, humanity will control the Milky Way.
In 10 billion years, humanity will control the Virgo Supercluster
In 100 billion years, we will control our group of superclusters.
In 1 trillion years, humans have advanced to the point where we are no longer human and can command the universe at will.

Human expansionism is inevitable. Ready your anus, universe, America is coming to liberate your ass.

>>2078791
What about a universe forming from the previously heat dead universe(technically same universe) via quantum fluctuations?

>>2078800
I think your curve is too linear.

>>2078800
>America
>living past 200 years as a whole nation
wolololo

>>2078811
>implying America is not already 200+ years old

>>2078801
Now you're getting into the realm of complete speculation. There is currently no evidence to suggest or refute this.

>>2078811
You jelly that America is the only country that still has some wololo?

>>2078818
America as it exists now will most probably not exist if technology advances to what it is projected to progress to.

>>2078598

Are there places in the world where you really get a night sky like that? Deserts and such. Probably that picture is a slight exaggeration (or not?)

Living in a place with terrible light pollution, I want to see something like that eventually, when I have time to burn.

>>2078836
No, OP's pic is a photoshop. The sky is taken from a telescope picture of the milky way.

The milky way is very bright in dark skies, but it doesn't have any colour.

>>2078791

That is simply untrue. If there is not enough matter in the universe to cause heat death, then there shouldn't have been enough matter left over after the big bang to form a universe of any kind. Period.

Heat death (basically entropy death) is NOT disproved. There is only anecdotal evidence of the heat death theory; but there is only anecdotal evidence for EVERY theory. I don't know if you guys know this, but no one knows for sure how it will end or what will happen. Everything we guess, such as heat death, is just basically drawing out all of the possibilities we can think of as far as we can.

>>2079007
The one thing we do know, is that we've billions of years to figure it out. ^_^

>>2078669
>>2078639

This is based on current observations within our region of the universe. It is entirely possible for gravitationally bound systems to be undone by cosmic expansion; we know this for a fact, it just takes billions upon billions of years.

Light, for example, normally once emitted and propagating through space will after billions and billions of years begin to change due to the slowly cumulative effect of expansion, until it is eventually pulled and stretched tighter into the IR range, and eventually the microwave and radio range. By the time light is stretched into radio, it is likely nothing more than seeming "noise".

The expansion of spacetime, no matter how rapid, takes billions and billions of years to begin to unbound systems of mass and energy. Just because we aren't observing gravitationally bound systems being pulled apart doesn't mean it won't happen. In fact such a thing would be impossible for us to see, because at the point in time cosmic expansion takes over a region it's EMR will never move fast enough to outdo the expansion. Any system coming gravitationally unbound will already be at the point of no further observation.

Fate?

everything will age and turn into cheese

Some say the world will end in fire,
Some say in ice.
From what I've tasted of desire
I hold with those who favor fire.
But if it had to perish twice,
I think I know enough of hate
To say that for destruction ice
Is also great
And would suffice.

>>2079043

Assuming that, than the ancient universe has already met heat death.....we just won't know for however many billions of years it takes the last photon to reach us. As soon as all of the red shifted contents of the ancient world disappear, then we can start talking about heat death.

I think whatever it is, it is going to be extraordinarily rapid. Like in an instant the laws of nature are altered, just a tad, and the entire structure of energy and mass falls apart.

For all we know once cosmic expansion takes hold of our region we will just instantly....vanish I guess. We don't really know the implications of exactly what expansion does to an area experiencing it; it could alter/break the laws of nature; and I don't think that is too crazy sounding, considering all the crazy shit we already know.

Initially created to solve a number of paradoxes in cosmology, the concept of inflation, a rapid expansion of the early universe, is now well established due to its success in explaining the WMAP results and other data. Many models of inflation predict eternal inflation, in which an exponentially expanding universe forever spawns bubble universes, of which ours is only one. In a 2006 paper, three scientists, notably including Alan Guth, the original inventor of inflation, point out a surprising consequence of this: Each bubble universe has a center which can only be detected by collision rates with other bubbles. The further you are from the center, the more likely you are to be hit by another bubble.

Needless to say, such a collision is likely to be fatal for humanity. The bubbles expand at the speed of light, so there's no way for us to see one coming. The survival probability decreases exponentially with time; only the center of the universe is safe.

Since humanity is in grave danger, and we have no natural means of saving ourselves, we must turn to supernatural means. After extensive prayer and meditation, I have determined that the center of the universe is located in the spiral galaxy HCG 87c. For the salvation of humanity, preparations must begin at once for the transport of the human race to its new home. All our resources must be brought to bear on this task, which though Herculean, is absolutely essential for our continued survival. Please write your country's legislators and urge them to act now on this most pressing matter.

You can find Garriga, Guth, and Vilenkin's paper here:

http://arxiv.org/abs/hep-th/0612242

>>2079063
You left out the verse that candy is dandy but liquor is quicker.

>>2079082

Imagining the laws of nature breaking isn't really as outlandish a thing as people think. I mean it's not like they are some hard and fast rules of the greater reality or anything, they are just the created by the interactions of the contents of the big bang. What laws were followed by previous to us? The laws of infinite nothingness? Basically, quantum irregularities.

Fuck for all we know our entire universe IS a quantum irregularity; randomly just bursting forth out of nowehere at no point in time. The standard "rules" of reality could be no rules at all in the face of nothing; but here in our "universe" we gawk at how amazingly complicated and seemingly designed it is.

It's not that hard to understand. Of all the nothingness that could have existed before, and of all the universes that could have randomly popped in and out of existence.....we lucky ones are of course going to live in the universe that JUST so happened to be able to support us, so therefore we are going to be the ones able to postulate that these rules must be solid. But fuck no, we are probably just a lucky coincidence; and our hard and fast rules are a glitch of something in what is supposed to be nothing.

>>2079092
I think the center of the universe is 20 miles west of Phoenix. The great one-eyed, one-horned, flying, purple people-eater told me this in an encounter south of the north pole. I have since astral projected my consciousness to him, to confirm his assertion, and he did confirm it, adding that we must act in a lackadaisical manner, as we have trillions of years to figure it out. We shouldn't go anywhere.

>>2079111

Just saying we might be a "glitch" could very well be true, we might just be an imperfect anomoly that exists in nothing. There could be multiple universes, all existing for nothing.

But to write it off so simply is a mistake. Whether we are a mistake in reality or not; we are here, and we might as well make the most of it while we have the chance.

Honestly, as cool as being to contemplate your own existence is, it really serves as a burden. I mean we just pop into existence, live a life of random chance and chaos, then die. Meanwhile we get no answers, no explanation.....absolutely nothing to assuage that part of your brain screaming "Who the fuck am I and why!?". We get conflicting views, that of current science and various religions; but we simply never find out.

It is a terrible thing really, being able to try and contemplate your own reality.....but being doomed to die without an answer. We as humans....we just want to know. We want to know really really bad; and we are trying, but by simple logic it cannot be easy for an entity to decrypt the thing that made it. It's like a computer becoming self aware and then reverse engineering it's own code.......