u know when ever i see the stars i always think about the mystery of the universe.u know which is the most difficult question of the world , its the mystery of the universe ! do u think we have another earth another mars  somewhere else .what would we find at the other end if suppose we travel wid the speed of light for a year . upon travelling for so long would we reach the end of the universe or what else ? my mind gets blogged think about universe . how huge is our world outside our solar system. tell me wid ur wildest imaginations
208176
Are you high?\nIf not try reading Hawkins or books on the theory of chaos where you could find even more exciting things about the universe.\nGood luck and have fun!
224394
Right now, we're not even close to faster-than-light (or FTL) travel.  All out traveling has to be done at less than the speed of light, so most stars are farther away than we can get to.  Even at half the speed of light (which is far faster than we can travel) it would take 8 years to reach the nearest star, not counting the Sun.  (Not to mention 8 more years to get home afterward!)  Nothing can move faster than the speed of light, so our best hope is to do just like they do on Star-Trek.  The found a way to bend spacetime to get to distant stars without actually moving through normal space, which had less of a curve.  Nobody has any idea how to do that now, so we just have to keep expanding our understanding of science until we do.  Until then, I think our best bet on meeting intelligent extraterrestrial life is to hope for them to come to us!
130702
how do you understand anything?  We can't understand everything there are things beyond our comprehension.  Try to think about this, does space end?  Is it infinte?  what is infinite?  You kno?
255034
In spite of what some yo-yo answered, the universe IS expanding, but whether or not it's expanding inside something else is absolutely and totally unknown. In the far distant future our science might have progressed to a point where we'll have the means to answer that question. Instead of driving yourself goofy over wondering what our universe is inside of, best to just try and imagine an absolute and infinite void totally without space, time, energy, mass, or anything else.
621167
There are billions and billions of planets in our universe.  We know little about the vast majority of them, and to think that there is no intellegent life on another planet is arrogance on our part.
408886
I go with the Big Bang theory and that our planet just happened to be in the right place at the right time. If our planet grew life then there is the possibility that other planets in other galaxies grew life as well. We just happened to get the right amount of heat and light from the sun.
669055
why space\n\nbecause we seriously know nothing about whats around us\n\nwe don't' know anything about other galaxies slash never even been to another plant.  Why not space...\n\nthere is so much more to learn and know... don't u ever want to get out of are solar system and meet another species
20355
I believe the universe is a 'closed' shape, meaning that there is no 'edge', however it does have a finite size.  But just to entertain your question, if we one day did reach the End of the Universe we literally would be unable to describe anything on the otherside.  Everything we know about physics, space time, the fundamental forces, the universal constants and so on only exist in this universe.  Anything 'outside' of the universe could potentially then have different laws of physics and thus would be completely beyond our comprehension.  Words would literally fail.  For more fun reading, checkout the link in the sources.
247849
Is our universe in another universe?\n  \nBefore we can address that question, we must first define universe.  \n\nThe word universe denotes all space and everything (matter, energy) contained within it.  The prefix uni means one.  The root verse means word, carnate message, meaningful substance, matter.  Questions regarding our universe persist today.  Does it have a beginning and end, or does it go on forever and ever?  Is it linear or curved?  If it has limits of length or curvature, then what lies beyond the Universe?  If something lies beyond the Universe, then can’t we accurately call that the Universe?\n\nSome lay people and some scientists conceive of the universe as infinite space.  Others define the universe as finite, or limited (perhaps curved), space.  Still others incorporate the elements of matter and/or energy into their definition of the universe, as opposed to the space beyond matter and energy.\n\nGiven these concepts of our universe, some scientists conclude that the “totality of space could be infinite. Shrink an infinite space by an arbitrary amount, and it is still infinite. (Scientific American March 2005).”  \n\nAs to the notion that we live in an ever expanding universe, moving away from every other universe on the fabric of space-time, some scientists are careful to point out that “\nAndromeda, our nearest large galactic neighbor, is actually moving toward us, not away. Such exceptions arise because Hubble's law describes only the average behavior of galaxies (Scientific American March 2005).”\n\nIn accordance with your supposition that our universe is in another universe, “it has been hypothesized by some scientists that the universe may be part of a system of many other universes, known as the multiverse (http://en.wikipedia.org/wiki/Universe).” Modern astrophysicists talk about multiple "pocket" universes that branch off from one another.  Stephen Hawking points out that parallel pocket universes can have no effect on a real observer inside a single pocket, so, according to Hawking, they are theoretical baggage that should be eliminated from cosmology, the study of the origins of the universe.\n\nSome string theories define the universe as a three-dimensional space in an invisible space having more dimensions. This is, in essence, a universe within a universe.  Our zone, a “braneworld” could periodically bounce into another parallel braneworld.  This may create what would appear as a Big Bang from one perspective or a Big Bounce of alternating expanding and contracting universe from another perspective.  Such a cataclysmic event is thought to occur 300 billion years from now, resulting in the rearranging and creation of a new universe.\n\nIs our universe inside another universe?  Well, apparently the Men in Black had it right.  Our universe seems to be inside of something else, another universe, called the multiverse.\n\nSteve\n:-D
672786
Such a big question as big as a universe.  Lol.  Noone has ever crossed the universe up to this date, noone meaning a human being.  Did any alien life achive such a technology to see the terminals?.  I don't know.  What I know is that universe has been a mystery to man forever.  The new technology gave us power to see the unseen and to find the truth of our curiosity.  Some scientists claim to know where the origin of the universe is located at.  They look for interesting galaxies that are more round and less formed than the rest.  Then, they calculate that since the galaxies are moving apart at an accelerating speed, the whole space coverd must be the acceleration of things within 15 billion years (now believe to be the age of universe).  Below is a source from space.com.  By the way, you were lucky and I was more lucky that I found this articull that I read about a year ago, and I got it at the first time.
302814
I ponder that a lot sometimes, when I get completely overwhelmed by the pace of my life and the obsessive narcissism of people.\nI have this little 'shoe-box' theory: We are really at a loss to begin explaining exactly HOW BIG the universe actually is, so we may as well just be this compact galaxy, stuck at the back of somebodys wardrobe in another space and time.\nYes, I'm a weirdo...
157177
I think we would be very naive to believe we are the only life form in the universe.As vast and diverse as it is,I believe there has to be a reason for the formation of these planets to sustain life.That said,who knows when the life was present on these planets?And who knows what life forms are out there as we speak?Perhaps Mars and Pluto had life trillions of years ago but there are no remnants now for us to find.It's a fascinating topic.If you think about the possibilities,it's incredible.
332634
Wow, what great questions.  Just so you know, we don't know the answer to what was before the big bang.  One idea is that our universe expands, then contracts on itself, over billions of years, and the whole big bang repeats over.  In other words countless universes preceded our own.
565290
Our solar system is not the only solar system in the universe.  There are hundreds and thousands and millions of other planets in the universe, and many are just like ours, but we don't know about them because we have never been able to get anything further than pluto to get a good specific picture of stuff.  In a general picture, though, we do know there are other galaxies in the universe
604501
No matter how many 'experts' around here claim that there are alternate universes or other dimensions or a brick wall, nobody--repeat NOBODY--really knows. Tons of theories, but not one single shred of evidence to support any of them.\n\nScientific research has repeatedly indicated that our universe is infinite in scope, and that it will expand forever although its contents (mass and energy) will very, very gradually fade away to nothing.\n\nBefore our universe began, and right now, there's probably nothing else but an absolute and infinite void totally without energy, mass, spacetime, dimensions or anything else.
237666
It would suggest that life is even more ubiquitous than we thought.  Take ryanwatts' answer.  Some of his points are valid, some are nonsense (e.g. circular planetary orbits are not rare ... 8 of our 9 planets have circular orbits, as to most of their moons, and the orbits of dozens of extrasolar planets we have discovered ... and panets with intersecting orbits don't last very long).  But even his valid conditions, when applied to the 200 billion stars in our galaxy alone, still leave millions of candidates in the milky way alone.  And if 10% of the 100 billion estimated galaxies are spiral galaxies, that's 10 billion spiral galaxies each with 100-200 billion stars.  And each of those stars may have multiple planets and moons in circular orbits.\n\nSo if we find life on other planets or moons in our solar system, as we're finding in the depths of ice cores or volcanic shafts, it would demonstrate that life isn't just *possible* in billions of other locations in the universe where the conditions are right ... but incredibly likely!\n\nSo, for why we search?  Because that's what humans do!  We don't *need* to find life there to confirm our theories about life on this planet ... we already have plenty of evidence here.  But there are dozens of moons and objects and interesting nooks and crannies in our solar system that we've barely had a good look at ... so dammit we're going there.  The search for life just gives us something to look for when we get there ... and gives us a good argument for which nooks and crannies to visit first. \n\nIt's like when I travel (e.g. I went to Greece and Italy last year) ... some people like to buy wines, some shoes, ... I like to buy soccer shirts.  I have plenty of soccer shirts at home so I don't *need* a soccer shirt. But it does gives me something to look for when I'm there. It would be silly to say that I'm spending all that money on plane fare just to buy a soccer shirt.  The travel itself is the reward. :-)\n\nSearching for life is the ultimate souvenir hunt!  Even if we come out empty handed, the journey alone is worth every penny!
350661
I hate to be the philosopher but that is why the question still reamins. No one can accuratly tell what lies beyond the boundries of the universe. Is there another? Is it just white noise? I believe that space is infinite and our "universe" could well be a part of a cluster of "multiverses". i was once told that the universe is expanding in the same way that a balloon is blown up. So what lies beyond our universe? I say space, space, and more space! \n\nIf our universe began with the "big bang" then that would mean that at some point the universe had collapsed upon itself, leaving empty space.