Are there any other life forms on other planets?
605896
"Are there any other life forms on other planets?"\nProbably, we just have to find them (or they have to find us).\n\n"Is it possible that when we expire we will be born on a other planet?"\nThat is a theology question, not a science one.
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.
611976
Definitely.  Even if its just some microbes out in space, just the sheer number of planets and stars etc I would think there would have to be other life out there!
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
249308
Sure why not.\n\nJust look up in the night sky. There are so many starts we can see, and untold planets we can't. This is just one galaxy. There are so many more out there in the univers. It is really silly to think that with all those planets, ours is the only one that has life.\nOur planet is still a young one. I'm sure there are life forms on other planets that have technology we can't begin to comprehend
438713
your right. i also believe that life on another planet dosent need to have water present to sustain life.\n\nits just that they are trying to find life on other planets and if they find water there is a chance that there was or is life on other planets.
499462
life exists on other planets.  it may be something like bacteria, or something large and intelligent.  life was created by chance though, and Earth had 6 mass extinctions where each had the potential to stop life in its tracks.  ironcaly, the extinctions caused evolution to speed up, but thats getting off the subject.  if life is on other planets, which i amm sure of, they will be like nothing any human can think of.  look at earth and how only a continent away can cause large differences in animals.  the planet will provide different challenges for life and evolution to overcome, the life might not even have DNA and RNA, they may have a completely different nucleic acid/genetic material.  its unlikely we will ever find them within the next century, though.  we simply wont have the space travel capabilities.  in time, though, i am positive that we will stumble across life, may be just odd bacteria or could be something like the aliens from ALIEN or the Covenant from Halo games.  we just dont know.  lizard-men?  highly unlikely.
647533
There are too many other planets in the universe to say that ours is the only one with intelligent life on it! That's human arrogance to say this one planet is the only one with intelligent life. Since we haven't meet any,then their aren't any! Is what most people believe,but I think their is! Everyday we are finding new forms of life right here on our own earth that we didn't now was here,til we found it. Space is so vast, the universe is endless and other species from other worlds probably face the same challenges that we do in space exploration. They haven't discovered how to travel through space and such great distants just as we haven't. Or have they? Remember The Thing! Who knows what could be frozen under the Artic and how long it's been there! Also, I believe that their are species much stronger than us, with the power to inslave us or put us on the food chain. I know this is far out,but think about it...we as humans eat every other animal on the planet cause were the strongest! Now if a stronger species than man took over the earth,who knows man could be on the menu!!!
240127
There could be another planet ... but it will be so far away from the Sun that it may be even more difficult to find than Xena (the 10th planet).\n\nAs to the solar system existing in another planet?  Hmmm .... seriously mate ... no.  Not a chance.
1015597
I don't know for sure but the universe is just too freaking huge for humans to be the only life form in it.  So I believe that alien life forms have to exist out there somewhere, since the density of life through the universe has to be greater than null.
570420
Well, the bible doesn't say anything about life on other planets.  It doesn't say that there isn't life on other planets - it just doesn't give us any directive about what that life is like or what our relation to it would be.\n\nThe bible is silent on the topic.\n\nInterestingly, C.S. Lewis, a famous Christian author, once wrote a science fiction trilogy about life on other planets.  The books in the series are:  Out of the Silent Planet, Perelandra, and That Hideous Strength\n\nC.S. Lewis is my favorite author and that was a great series as I am also a huge Sci-fi fan!
1037252
If you are referring to other planets that are habitable, I believe that mathematically there has to be intelligent life in other parts of the universe. Here is why.\n\n1. The Hubble Telescope estimates that there are 125 billion galaxies.\n2. Each galaxy has roughly 100 billon stars.\n3. If even 1% of those have planets and only 1% of those are habitable and only 1% of those have life, the odds are high.\n\nThe odds are extremely favorable for there to be extraterrestrial life. \n\nOne can use Drake's equation to calculate the chance of life in our galaxy. Multiply that result times the number of galaxies. See the second link below.\n\nA totally different question would be whether or not we would actually interact with extraterrestrials...\n\nI will leave that one to another Y! Answers Question
285815
The probability of life on other planets (or moons) is certainly given. Just the other day a spacecraft found liquid water and volcanic activity on Saturn's moon Enceladus. So it's quite possible there could be life, in a primitive form at least, as near as Saturn's environment.\nAs to other galaxies, we'll never know. It's too far away - we're talking millions and billions of light-years. So even if there was life in other galaxies, the information to reach us would take millions and billions of years.\nGoing there is out of the question. Mass can't even reach the speed of light, meaning that to go to the nearest star, Alpha Centauri (four light-years away), would take very long. With a Space Shuttle, you can go at 28000 kph (17,500 mph). Light travels at 300000 kilometres per second (186,000 miles per second)! This equals 1080000000 kph (675,000,000 mph).\nSo given today's technology it would take slightly more than  150,000 years only to reach Alpha Centauri.\nBetter make sure to have a good book on board with you.
997050
Sure there are. There are many as-yet undiscovered species within out own world. Remember also, that we are but one of thousands of "species" living on the earth. While not provable at this point, given the vastness of our universe, it is likely that there are other forms of life elsewhere. I'd not imagine "little green men" as much as simple-cellular forms.
827505
No other planets are habitable for humans.\n\nMercury and Venus being far too hot.\n\nJupiter, Saturn and Neptune for being gas giants and so has no solid surface. The gravitational pull of these planets would crush our bodies. Juipters gravititational pull is over 300 times the earth.\n\nPluto is too far away thus seeing temperatures of over -200 degrees C.\n\nMars would have been a perfect candidate, as the temperature is quite similar to earth's at occasion. But our lifes need plenty of water and the abundance of water on Mars is basically zero.\n\nFor other life than humans, a moon called Europa, which orbits Saturn, contains frozen methane and water, which could harbour life. The only problem is its a moon and not a planet.\n\nThere are all the other planets (approximately 250 so far discovered) in the Keiper Belt which need to be examined
586467
No I believe there is other life out there somewhere. The universe is huge so how could we be the only planet to have life?
1052164
Ask those living in other planets!