How large is the universe? Does it have an end point?
I was thinking about how the universe might have an end point and nothing is left - nothing. No life. No planets.
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answers:
Jeffrey K say: It is not known if the universe is infinite or finite. And if finite, we have no idea how big it is.
But there is no edge. There are stars and planets everywhere in space. And space can not have a boundary. But it might curve back on itself, like the surface of the earth. We might be living on the 3D hypersurface of a 4D hypersphere. If you go far enough in a straight line, you come back to your starting point.
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Ronald 7 say: There is no end to the Universe
That is what makes it special
It is like crossing a field and going through a gate to find there is another field and another gate and it goes on for ever
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goring say: What is referred to as the Universe is just a physical Entity that was created somewhere in a location of Heaven.
What astronomer observe is a physical Universe which consists of a space substance structure of structure and Atomic structures of the Earth.
If the space structure was removed from all atomic structures the Universe size would boil down to one cubic meter which could easily fit under the kitchen table.
We do not exactly have an Understanding about our Creators Heaven.As it is incomprehensible to us for a Universe which has no end.
In order to calculate the total mass and time of the Universe it is needed to have an exact distance to the location of its center.
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quantumclaustrophobe say: The *observable universe* extends about 45 billion light years around us in every direction... and in all that - there may be more we're unable to observe.
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jehen say: There are a few theories on the ultimate end our our Universe - including that it may never end. 1. Heat death by entropy. This is the point at which all matter has decayed and no energies remain. I think this is the one that most cosmologists see as most likely 2. Big rip - dark energy that is driving and accelerating the expansion of space. This is observable at vast scales, but should it continue unabated then perhaps the 'space' within atoms is also affected and elementary particles can no longer form matter. 3. Big crunch - dark matter somehow slows then reverses the expansion of space and the universe collapses back into a singularity. But the sketchy math for all of these scenarios says our 14 billion year old observable universe is a baby with trillions of years of existence left.
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Adullah M say: First of all , universe start up from nothingness , then from nothingness turn to be something and from this something then turn to be all things being filled in the universe . So to see universe came from nothingness and then moving on to be nothingness again. Between the origination of nothingness to the end point of nothingness ,then poses limitation in all respect no matter how large the universe is.
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busterwasmycat say: We don't know about an "end" (I won't say point), a limit where you cannot go further and remain part of the universe. The question of nothing is what you mean by nothing. There is no nothing if you can get there. And being unable to get there does not mean it cannot exist. It just would be something else, something we can't deal with with our sensory functions. I don't think that there is a true "nothing" in a scientific sense. If it doesn't exist, it doesn't exist. If it exists, it cannot be "Nothing".
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Morningfox say: Wandering around the universe is like an ant wandering around the surface of a beach ball. The ant never gets to any end point, because the surface doesn't have any end points. It's the same with our universe, there are no end points. No matter where you are, or where you go, it looks pretty much the same in all directions, except for a few small local differences (stars and galaxies).
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amitmit say: We don't know, it takes time for light to come to us, so it is possible that there are areas that are too further away and we just didn't "catch" the light from them.
Personly I think it must end at some point , but there are things we just cant understand.
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Fuhr say: What is north of the north pole?
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cosmo say: The Big Bang seems to be a 4-D hypersphere with a radius of around 10^21 lightyears. If you went infinitely fast in any direction, you'd come back where you started after a journey of around 10^22 lightyears.
There may be other Big Bangs, possibly an infinite number.
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