If the universe is infinite, there also exist thousands of Earth with billions of people like us am I right ?
148056
The universe is not actually infinite, although it is unimaginably large - perhaps up to thirty billion light years across with a couple of million galaxies.\n\nHowever, the circumstances that created Earth are quite unique: only we emerged from the particular dust cloud that formed us, only on Earth did a 600 million year old glaciation lead to the pre-Cambrian explosion of soft-shelled complex life of the upper Ediacaran, and only on Earth did an asteroid hitting Mexico's coast clear out the large reptiles in order for the larger brained mammals to take over. \n\nIn short, a very specific sequence of events permitted us. It is almost certain that the exact parallel events have not happened anywhere else.\n\nThat is not to say that there are not Earth-like worlds out there. The Hubble telescope has a new refraction technique that has allowed it to find rocky worlds in other solar systems, and it recently found a world that is somewhat similar to the Earth (but five times larger.)\n\nBut they would not be Earth.\n\nThere is one quantum mechanical derived theory that posits a new universe breaks off with each possible choice we make.  This was the premise of a sci-fi show, "Sliders", at one point. If such universes do exist in a multi-verse, we have no way to detect them or know they are there, unfortunately.
765259
No, there is almost certainly life within the Universe besides Earth, and there is certainly life within the Milky way besides earth.
931677
Of course there are. There are millions of inhabited worlds and all are on the path to eternal life. We'll even get to meet some of them as we continue our journey.
728914
We don't know for sure, but probably there is.  \n\nScientifically, think about it.  If there is a .001% (a random low number) chance of life living in a solar system, and .001% chance of life on a planet in the solar system, and a .001% chance of the life being intelligent, the chances are really good.\n\nIf the universe is unlimited in size, then then these figures will mount up and eventually the probably will get to 100% that intellegent life exists somewhere.  \n\nLet me clearify: you can say that if a galaxy has 10 planets and there is a .001% chance of life existing in that one galaxy, there's a .01% chance of life existing there.  However, the universe (as far as we know) is unlimited in size.  There is an unlimited amount of planets in the universe, therefore, you can speculate that there is a 100% chance of life existing in outer space (because there are unlimited number of planets).  I think that I clearified it, if not let me know.  ownager@sbcglobal.net
299945
Space is infintie.  The universe,however, is not.
956138
Yes, you are the creator of your universe. For you those aspects of the Universe do not exist unless your mind is fed with such data by your conscious and unconscious efforts. In a way, everyone of us is the creatore of his world.
103035
yes, numbers are infinate
40749
Sorry, as Braxton points out, the size to the edge of the observable universe is 78 billion light years due to the expansion of the universe (same source as the other guy used, Wikipedia) There is much debate as to whether or not the universe is infinite, but many scientists believe that the universe is indeed finite in size.\n\nBY THE WAY: I find it comically amusing how two people can cite the same source, yet somehow I'm the wrong one.  Oh well ;)
963899
yeah. we are the perfect proof.\nand, the universe is sooo BIG for us to be the only planet with living organisms.
1127356
greetings....\n\ni actually believe that we are not alone...i have my own encounters... the universe is big....so big we cannot even start to comprehend how big it is... chances are, life could actually be abundant in the universe, but the degree of intelligence could vary widely, maybe life exist only in microbial form, or with intelligence much superior than ours... but for now only earth is known to harbor life... aren't we lucky we are here?
270604
Yes, I think it is possible.  We live in such a great universe and there is probably another life form out there.
1007479
Yes.  Beyond our own Milky Way galaxy there are estimated to be 200 billion more galaxies in the visible universe at distances up to 13 billion light years from Earth.
36543
As I understand it, the universe is in fact finite.  However, it's expansion is continuous and progresses at such a rate that we can not, with current technology, move beyond to see the end.
818029
I am going to put a slightly spin on this question. I DO believe that there are parallel universes. There are at least as many universes as there are people and possibly as many universes as there are living things. We each experience a different universe, but they all exist at the same time. Our "Universe" is what we experience (see, hear, smell, taste, feel, and any other undocumented sense). THAT is where parallel universes come into their own, and THAT is where relativity comes into play. My universe starts with me where I am and ends "out there somewhere". I will never get to experience the end, because wherever I am will always be the start of my universe.
862621
All sorts, it is almost invetable that the universe MUST be teeming with life.\nBillions of planets, millions with life.  Possibly billions with life
429398
Well, think this, the universe is infinite. Wouldn't be kind of ridiculous to think we are the only smart ones around in such an endless space?
1130560
According to the current going theory on the creation of this Universe (the Membrane Theory), it was caused by the collision of two others, and that they were only two out of an infinite number... so I would say it's likely there are not only other Universes out there, but other multi-verses out there.  After all, if our Universe isn't the end of existence, what're the odds the Universe it's only a part of is?\n\n\nFor a bit more on Membrane theory, though admittedly not a lot since it's very new, you can visit:\n\nhttp://www.bbc.co.uk/science/horizon/2001/parallelunitrans.shtml\n\nhttp://www.citebase.org/cgi-bin/citations?id=oai:arXiv.org:hep-th/0312321\n\nhttp://www.curledup.com/parallel.htm