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just wondering wen it began...and when will it end..

2007-10-17 02:04:49 · 13 answers · asked by ram 2 in Science & Mathematics Astronomy & Space

13 answers

Everything ends. We're looking at either the Heat Death of the universe (the Big Freeze) or the Big Crunch. The site below details both, as well as other interesting things that could happen.

2007-10-17 05:35:16 · answer #1 · answered by ryttu3k 3 · 0 0

The question you asked intrigues all scientists and astronomers, and has done so for years and years.
Many theories exist and some of them involve myth
and folklore. The most widely accepted theory (and
it is only a well thought out theory) says that the present
Universe began with the Big Bang some 13 - 14 Billion
Years ago. So, other than by doing a scientific examination of things as they are today can one work backwards in time
to suggest how all of that came about. Doing that takes a
very high level of physics and mathmatics to calculate all
of the expansion speeds and trajectories, orbits, masses, etc. That is why many common people have a hard time
discussing or understanding the forces at play in a discussion of this type. Many dismiss it as impossible or untrue.

As far as the Universe ending...Well that depends upon what you perceive as "The Universe." In reality, it can be said fairly certainly that the Sun will use up all of its hydrogen gas and begin a drastic change in about 5 Billion more years. That change will being about the incineration of Earth and the death of all creatures upon it. Farther out in time than that it is also fairly certain that our Galaxy, The Milky Way will collide with the Andromeda Galaxy in about 8 to 9 Billion Years. So, if one had to place some kind of a date on the end of the EARTH, you might suggest a date around 4.5 Billion Years from now.

That does not, however, apply to the Universe which is everything out there. No ending for that vast assortment of objects, stars, and galaxies has ever been projected. It is to immense to forecast. However, stars do die from time to time, and other stars are born all of the time way out there in deep space.

2007-10-17 09:55:52 · answer #2 · answered by zahbudar 6 · 0 0

As the universe continues to expand the galaxies will grow farther and farther apart. That means that the 100 billion or so galaxies we can now see though our telescopes will zip out of range, one by one. Tens of billions of years from now, the Milky Way will be the only galaxy we're directly aware of (other nearby galaxies, including the Large Magellanic Cloud and the Andromeda galaxy, will have drifted into, and merged with, the Milky Way).

By then the sun will have shrunk to a white dwarf, giving little light and even less heat to whatever is left of Earth, and entered a long, lingering death that could last 100 trillion years—or a thousand times longer than the cosmos has existed to date. The same will happen to most other stars, although a few will end their lives as blazing supernovas. Finally, though, all that will be left in the cosmos will be black holes, the burnt-out cinders of stars and the dead husks of planets. The universe will be cold and black.

But that's not the end, according to University of Michigan astrophysicist Fred Adams. An expert on the fate of the cosmos and co-author with Greg Laughlin of The Five Ages of the Universe (Touchstone Books; 2000), Adams predicts that all this dead matter will eventually collapse into black holes. By the time the universe is 1 trillion trillion trillion trillion trillion trillion years old, the black holes themselves will disintegrate into stray particles, which will bind loosely to form individual "atoms" larger than the size of today's universe. Eventually, even these will decay, leaving a featureless, infinitely large void. And that will be that—unless, of course, whatever inconceivable event that launched the original Big Bang should recur

2007-10-17 09:43:28 · answer #3 · answered by Anonymous · 0 0

Well the universe began billions of years ago with what scientists have theorized as the Big Bang theory and so ever since then the universe has been expanding outward. Now here's where lots of factors come into play in answering your question; First question you may need to ask yourself is will it stop expanding and this question is still in debate. Some scientists say yes it will and then it will collapse on itself, others say no it will keep expanding indefinetly and still others say that the universe will eventually slow down and just come to a stop. So now the second factor in this is something called "dark matter" and this is a whole other issue but long story short is that this is an invisible substance throughtout all the universe that is holding it together from collapsing in on itself and so this is still being researched but plenty of evidence is giving way to hlep it along. So in answering your question we are still unsure of what will happen for sure but most consensus is that it will eventually collapse on itself but in billions and billions of years from now.

2007-10-17 09:55:04 · answer #4 · answered by bdgirly 1 · 0 0

If you are talking about a limit to the Universe, then, Propably not, but no one is yet sure how long this vast area of empty space has existed, if not since forever. But as far as common sense goes, we are somewhere in the 'expendable Universe' inside an infinite empty space.

There are no straight answers to questions like these, and most likely there will never be. Maybe.

You've got to ask yourself, if the Universe did somehow just dissapear, what will remain?

If the Universe did somehow have an end, a dead end, what can it be?

An Unknown force? Anti-Existance? A brick Wall?

2007-10-17 09:15:12 · answer #5 · answered by Sebastian 1 · 0 0

As far as we know, the universe will keep expanding and eventually cool down so there is no more energy so the matter of the universe (protons, electrons etc) will still exist, they will just stop moving.
The universe will not contract under its own gravity, that much is certain.
The only way to know the fate of the universe is to know whats outside the universe and if there are any limits. We will never ever know this though so it will be a big suprise assuming we live that long.

2007-10-17 09:46:10 · answer #6 · answered by futuretopgun101 5 · 0 0

No it doesn't have an end.
well if you go by theories like big bang or the pulsating theory or by the steady state..... nothing tells that there is an end.

Also Big Bang being the most accepted one we can continue our discussion on this. it clearly explains that time and space are created as universe expands, and the reverse when it contracts... in fact we can't imagine what happens if time goes backwards. Still we can at least visualize that there is no end to the universe even if the entropy keeps changing.

hope this helps you. will help you more on this if you want
thanks

2007-10-17 09:49:35 · answer #7 · answered by ? 2 · 0 0

yep there is a end

the universe started due to the Big Bang

in 1 millionth millonth millionth millionth millionth millionth millionth millionth millionth

of a sec universe just came to life

and now it's heading towards the BiG Crunch

In 1 millionth millionth millionth millionth millionth

of a sec all items in the universe willl collide into a Quasar type object

and End Of Universe(if parallel universes do not exist )

hope i answered ur query :)

2007-10-17 09:10:14 · answer #8 · answered by Rozkin Manits 1 · 0 0

What is unborn will be undying .Matter is indestructible ,the unerse is composed of matter and so it woud never be not existing .It has no beginning ,matter would have beenof different composition at differnet times as it is coinstantly changing and never dying .It cannever by destroyed by any force .the enbd if he unverse might mean the chagin of he clestial bodies in it from one to another - that the stars turnin ginot whie dwarfs and super novas and turning itno black hioles and rememerging as new unerses but they woud never cease to exist .
Lord Krishna has refered to ti in Bhagavad -gita in thefollowing world:

"Never have I not existed ,
nor yu , nor these kings ,
and neer in the future
shalkl we cease to exist ."...verse 12 of 2nd teaching of Bhagavad -gita.

2007-10-17 14:28:46 · answer #9 · answered by diamond r 2 · 0 0

it began 4.5 billion years ago and i don't think that the universe will end.

2007-10-17 10:58:23 · answer #10 · answered by SIMONE 5 · 0 0

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