Life in the space, other than the Earth?
724199
So far we've seen no verifiable evidence of other sentient species. That said, I believe with some certainty that somewhere in our galaxy at some past, present, or future time, a sentient species did/does/will exist.\n\nWhy haven't we heard from them?\n\nPerhaps they are not technologically advanced enough to be heard. They may be mastering stone knives right now, or experiencing their own Rennaisance.\n\nPerhaps they are here right now. Any species sufficiently advanced to travel interstellar distances would be able to hide or masquerade with ease. That Boeing 737 that just flew by may be a surveillance craft.\n\nPerhaps they are so far away they will never notice us and vice versa.\n\nPerhaps they existed a million years ago and died out.\n\nPerhaps they will exist a million years from now.\n\nIt is really impossible to know for sure.\n\nThe Drake Equation suggests that there is sentient life out there. The Fermi Paradox casts doubt. Play around with the calculation form at the second link and see what you think.
1073300
Okay, we are finding and discovering new forms of life all the time with new technology.  There are new marine animals found with the deeper we are able to explore.  Animals, bacterias, all forms of life are mutating and popping up all over the world.  On mars, they've discovered water on the planet and plant life under the surface of this water.  \nOkay, so it's not Star Trek yet.  We haven't communicated with alien beings...that we know of.  But that's not specifically what you asked now, is it?
673531
No one has yet shown that there is any life beyond that on Earth. \n\nAs far as life in general is concerned I am reasonably sure that there is life on other worlds and there are currently a couple of space missions in development that may find earth-like planets and even find signs of life on those planets in the next few decades.\n\nWhether there is intelligent life out there is more debatable.\n\nConsider that in 4.5 Billion years the Earth has only produced one technological intelligent species. This species has only really been able to consider possibly contacting or being contacted by intelligent beings from another world for the past 50 years. In that time we have just about managed to avoid nuclear annihilation, so far, and are currently well on the way to destroying the Earths eco-system.\n\nIf intelligent life is anything like Homo Sapiens then it will probably not last more than a few hundred years at a level where it is technically able to contact others.\n\nGiven that, it is extremely unlikely that two intelligent species will evolve close enough together to contact each other in the short time frame that they are able to do so.\n\nSo while there may be intelligent life elsewher in the universe I doubt we will ever find it.
184609
I do think there is a very good chance, statistically, that life exists on other planets. As I stated in a question very similar to this one, comets contain organic-like compounds that could be the building blocks for life, and such comets travel among two or maybe even more stars in a galaxy (interstellar comets).\n\nAs for watching us from above; the only things watching us from above are birds, flying insects, stuff in trees if you happen to be under a tree, people in skyscrapers if you are below a skyscraper, people in aeroplanes, satellites with Earth-directed sensors, etc.\n\nDeities, aliens and Jesus (which all may be one and the same) are probably not watching us from above or at all because they probably don't exist and if they do they probably have not discovered us yet because most complex forms of life on Earth are young relative to cosmic distances (which are measured in time). But it's as false for me to say "I know for a fact that aliens aren't watching us" as it is for anyone else to say "I know for a fact that aliens are watching us".
381971
I doubt that Earth is the only planet in the whole Universe that can sustain life.  There will probably be some other planets out there somewhere with some sort of life on it.  Whether it's intelligent life or not is another question!\n\nThere may very well have been life on Mars, or on other planets in our solar system at one point,  but we have yet to find it, or any evidence.
205075
I doubt that there is life there or elsewhere in the universe. Yes there is ice in outer space and probably on portions of planets which means there probably was water out there at one time. However there are too many variables missing for there to be life as we know it. Believing that there are physical life forms other than as we have here on Earth is just speculation. The more space is explored, the more we know that Earth is uniquely made. If you get a chance see the dvd, "The Privileged Planet".
306692
of course. As long there is a living thing outside space, they r aliens. The possibility is low but the no. of planet is almost infinity so the possibility increases.
253665
Unless we do something, life on Earth will most likely not exist once the Sun supernovas. If 'we' can figure out how to live elsewhere by then, ostensibly the galaxy is our playground. Big challenges involved though. It seems it would make sense to just move the Earth. Why not? 'we' could move the Earth, don't you think? What part of the galaxy should we move to. I'm sure we'd mostly like to stick around the Sun and it's leftovers, but we could choose to ride the Solar wind to another star. (Don't worry, humans won't have to do the hard labor of converting the Earth into a space ship with temperature and climate control). \n\nIt'll be fun. Like a road trip. Too bad we won't be alive. Probably no actual humans, either. I hope they're cool who/whatever they are.
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
429749
With the nearly infinite number of stars out there, it is reasonable to expect that life has developed on another planet. However, we won't know for sure until we actually encounter that lifeform, and that may be a long way off.
404059
There is alien  life. Perhaps not in our solar system but definately out there.\nNow this life could be simple microbes or anything like that.\nIntelligent life may be out there too, it all depends on how things developed after the big bang. There   MUST Be intelligent life out there.. There's none here!!!
381174
I'm not after the points as much as I'm want to give my views on the matter.\nAliens... I believe there must be life somewhere in the Universe other than Earth, given that it is so big. However I don't believe for a moment we are going to have visitors from other planets. The green men thing is all bullsh*t to me. If there is some other form of life somewhere in the Universe (very far, I expect), I expect it must be microbiotic or something of that sort. And I don't believe the "end of the world" will come from the space either, that's plain stupidity. \nThere you go.\n\nET phone home!
332737
This is interesting question. My opinion is: why not!! Maybe some forms of life that we don't know. There is some life forms even 11 km under the sea, under extremely high pressure. Some kinds of bacteria live without air too. Fish don't use the same air like us, but they are alive. There is so many different forms of life even on planet Earth, so why not on other planets? After all, if we did not see something, don't mean this don't exist!
261850
Statistically, it is very hard to believe that we (Earthliens) are along in the universe, there must be something else out there.\nAt the same time, the odds that life would develop independently on both Earth and Mars in the same solar system is pretty slim (unless life is actually not nearly as rare as we might think).\n\nThere is of course a chance that life may have developed on Mars in the past when the conditions were more suitable, but so far, we havent found anything.  Although there is the possibility, I am leaning towards no.\n\nBut think what that would mean if we discovered life outside of Earth (especially on Mars), it would be the most important discovery...ever.  If life can develop independently on two planets in the same solar system, either we are very lucky, or it the whole universe must be crawling with life (or you could throw the God factor in if you wish).
541536
Wasn't that the Mars landing?  Looking for life out there.
388822
our neighbor in other planets
95990
It's relative. There would be no life AS WE KNOW IT. But that's not to say an alternate form of life would not have developed. Who knows, the universe is astoundingly big.