Is there any life on other planets? I have heard lots of stories abt it, but is that really true??
364497
not in this solar system but beyond that only God knows.
1049105
Proof, so far there is none, however if you take into account that there are trillions of galaxies each with trillions of stars all of which may potentially have planets, then you have to consider that there is a good chance that there is at least one other planet out there with the potential for life.
1003114
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
21383
I once read a theory that the universe is so big, that there's a chance that not only is there another earth somewhere, but there's probably so many that there's bound to be one exactly like ours.  The universe is huge beyond our present ability to comprehend, and it would be highly ignorant to think that with all the building blocks of life floating around out there that life doesn't exist somewhere else.  Whether we ever find it or not is another question.
593865
I don't think a credible claim for seeing aliens exists.  Plenty of stories - zero real evidence.  \nDo they exist?  Well, I think the answer is probably.  There are so many zillions of planets in the universe, I would bet that there are others with life.  However, unless the time scale on which that life lives in FAR longer than ours, the laws of physics do not allow them to live nearly long enough to visit us.  It would take many millions of years to go out and visit these other planets - improve rocket technology even 1000x and it would still be thousands of years.  \nHowever - the possibility of us picking up some sort of radio signal from an alien world seems to be real.  No real hits yet - but it may happen.  We have conducted transmissions that have been sent to star clusters (containing millions of planets) which, if any have the same level of technology as us, should be able to pick it up.  Who knows.
1169143
if only someone really knew, I think the universe never ends.  I would really hope that we would find new planets outside our own solar system and we would really find other planets like Earth.  I still have time to pay attention and hope they continue to explorer.
199746
having life only exist on earth is like picking up a single grain of sand and saying that that grain was the most perfect grain in the entire world...it would be impossible to know this unless every other grain was examined, and the fact the new grains are constantly being made.  there are over 200 billion galaxies in the visible universe and a couple hundred billion more out there, all containing stars and planets that maybe able to sustain life.  and by "life" that also takes into account of any micro-organisms like bacteria and viruses and any other forms of life that might exist.  So to say that there is no life on other planets would be incorrect to assume, it's just a matter of time in trying to find it, whether it exists in our solar system is still debatable as micro-organisms can live in harsher conditions that larger organisms arent able to
57971
There has been bacteria found on mars before.  I also think that it whould be silly to make one planet only contain life forms.  There is a huge univese and I'm pretty sure that there is.
18963
This is a little hard to answer.\n\nFirst, we haven't found any.  So there's no positive evidence, so it's hard to be really sure. \n\nBut on the other hand, there are billions and billions of planets like ours, and it would be really weird if ours was the only one to have life on it.\n\nSo most astronomers think there's probably life out there somewhere.  I hope we find it.
206523
I'd imagine there is.... the universe is way to big to assume that we are the only planet with 'civilized' life on it.\n\n& really... are we THAT civilized???   :P
327734
I don't know about experiments and alien visits. But I know that I'd like to think that there is more out there some where. I don't even know if there is a chance that other intelegent life exists for not but I can't help but think that other planets in the universe have to be suitable for some form of life and continue to sustain something. We may never find it or know about it, especailly in this life time but there has to be more than just Earth.
219187
I do.  There are at least 7*10^22 or 70000000000000000000000 stars out there, so how could anyone really think that only one of those stars have life.  It has been estimated that there are about 1 billion planets with life on them in the entire universe.
671308
Of course I think life exists!  Infact, I beleive there is life in the solar system.  How do we know if there isnt life floating in the clouds of a gas giant, or icy crystal like things on pluito?  We havent searched hard enough for these yet!  Duh!\n\nLife outside of the solar system might be a little hard, considering that there are only "hold jupiturs," and "frozen earths."  Both are to hot or cold to support life, and they are massive and have insane gravity.  However certain single celled organisms, say bacteria or such, might reside on the planet.  I always thought that might be.\n\nIn addition, Europa, a moon of Jupitur, has ice flows on it that scientists think liquid water might reside under!  It might be interesting to see what could live there.  From the means of life there, I came up with a skating green creature who could move around on the ice, absorb the moisutre of the water, and undergo photosynthesis to obtain energy.  \n\nEnjoy!\n\nNote: I do beleive in aliens, but dont beleive in UFOs.  Considering how many hot jupiturs there are, I dont think we will even see any life as smart as we were as cavemen until alot later in time...
47051
not in our solar system. \nBut you also have to remember that even if there is life on other planets, we are assuming that they are as advance as we are or more. Could it be that maybe they are in a pre-industrial era and have no means of space exploration?
328025
Absolutely! The odds that they exist are overwhelming when you think of how GALAXIES are scattered like specks of dust!\nNow... even though aliens exist, what are the odds that they are on another planet in our galaxy right NOW? Think about it... It took 50 million years for humans to appear on Earth. How long will we be here?... only 50 to 100 thousand years (hopefully)? How many other planets will bring forth intelligent life - not a whole heck of a lot. And of them, when will that life be around? Just a tiny amount of relative time.\n...What I am saying is that EVEN IF other civilizations were, are, or will be... the timeline of the universe is too insanely long for any of us to be co-existing. The reality may very well be that we are currently very alone here in our time and place. I hope this gives you a new, more realistic way of seeing things. Sorry it's such a downer, though!
547876
If there is life on other planets (outside of our solar system), the odds of ever finding out that there is life there is infinitely, ridiculously small. The next-closest star to our solar system, Alpha Centauri, is just a shade under 4.3 light years away. Even if someone or something from a planet orbiting Alpha Centauri had the ability to travel the distance between our two solar systems and not die of starvation or, if they were able to achieve near-light speed, keep their molecular structures from becoming severely distorted, they would have to make an amazing pinpoint shot to hit Earth. Even if there is "intelligent" life out there, I think it's impossible for us to ever make any sort of meaningful contact with it. Anyone who has ever shot a rifle knows how just a fraction of a degree can determine a hit or miss on a distant target. The odds are that much more exponentially outlandish if we imagine interstellar travelers getting lucky enough to find our planet and solar system out of all the others out there, no matter how "close" we are.
312310
Is there such a thing as close by planets?\nWith all that we see in the night sky, not just stars but galaxies as well, what are the chances that we are alone in the universe?\nThere has to be intelligent life out there. We are all just too far from reach of each other. And most likely, other intelligence would be like us and send probes. Living beings could not survive the long travel, space probes could.