Question

We have heard that universe has no end that is,it is infinite.A line is also infinite,it has also no end.So if there is no end point, then there will be no starting point.That means we construct a line becaise we don't know where is the starting point.Same things is applicable to for the creation of universe .That means universe was not created because there is no starting point.So how was universe created?

Answer 1

The expansion of the universe is the increase of the distance between two distant parts of the universe with time.[1] It is an intrinsicexpansion whereby the scale of space itself changes. The universe does not expand "into" anything and does not require space to exist "outside" it. Technically, neither space nor objects in space move. Instead it is the metricgoverning the size and geometry of spacetimeitself that changes in scale. Although light and objects within spacetime cannot travel faster than the speed of light, this limitation does not restrict the metric itself. To an observer it appears that space is expanding and all but the nearest galaxies are receding into the distance.

During the inflationary epoch about 10−32 of a second after the Big Bang, the universe suddenly expanded, and its volume increased by a factor of at least 1078 (an expansion of distance by a factor of at least 1026 in each of the three dimensions), equivalent to expanding an object 1 nanometer (10−9 m, about half the width of a molecule of DNA) in length to one approximately 10.6 light years(about 1017 m or 62 trillion miles) long. A much slower and gradual expansion of space continued after this, until at around 9.8 billion years after the Big Bang (4 billion years ago) it began to gradually expand more quickly, and is still doing so today.

The metric expansion of space is of a kind completely different from the expansions and explosions seen in daily life. It also seems to be a property of the universe as a whole rather than a phenomenon that applies just to one part of the universe or can be observed from "outside" it.

Metric expansion is a key feature of Big Bang cosmology, is modeled mathematically with the Friedmann-Lemaître-Robertson-Walker metric and is a generic property of the universe we inhabit. However, the model is valid only on large scales (roughly the scale of galaxy clusters and above), because gravitational attraction binds matter together strongly enough that metric expansion cannot be observed at this time, on a smaller scale. As such, the only galaxies receding from one another as a result of metric expansion are those separated by cosmologically relevant scales larger than the length scalesassociated with the gravitational collapse that are possible in the age of the universe given the matter density and average expansion rate.

Answer 2

Wonderful question Bro.

I really like the way you think.

I asked the same question to many scientist but all I got was an answer like the person who gave an answer above.

The universe is a very complex thing to understand. It is not just a stack of laws of physics or a bunch of complex equations.

With the fact that it took us a hundred years to just send voyager 1 out of solar system it would be hopeless to go on a journey to find the end of the universe.

As you read this , many say that the universe is expanding. While some do not believe this but let us try to go on this small trip to find the answer.

There have been some theories such as, The expanding universe ,The multiverse ,The infinite universe.

THE EXPANDING UNIVERSE

The universe we live in ( probably) where there is only one universe and is expanding continuously.

This could be the one we really live because all the laws of physics and maths apply. I feel that is just stupid. It is like making up something to suite your needs and say that is correct.

So this universe does have poles or ends but they just keep going farther away by the minute, well rather second.

THE MULTIVERSE

A complex level of universes like the planets being as part of a solar system similarly our universe is part of the other universes in a colony.

Their laws of physics and chemistry and mathematical equation might totally be different.

So in this case we definely are not alone. But we can also not meet each other. Because we do not know what is in between universes and how to cross it.

We also don't know the laws in that universe the people of that hat universe the universe of that universe.

THE INFINITE UNIVERSE

Our universe is the only one and there is nothing called beyond. There is never an end and will never be , it just keeps on going forever and ever.

Now your question is that where the universe started.

It may take us ages to ages to answer this one question .

Let me ask you one thing. You took a starting point on the line to draw it. You drew the line.

The same way someone out there has taken a point and is drawing our universe.

It could be god or maybe we are on are simulation.

But the question you asked gives us a clue that we are like the atoms of the line we atoms atoms part of it.

Our past present and future of the universe is in the hands of the person drawing it.

Hope it helps.

Join me in my journey to find the end of the universe message me.

Mark as brainiest.