Do you believe that there is life away from earth, like aliens? Have you ever seen one?

Answer 1

I am assuming that you mean complex life and not just bacterial organisms. Let's take a look at what we have so far. As of right now, the only place we know where life exists is here on earth. There are several conditions that have to be met in order for complex life to form. For one thing, water is a necessity for all carbon based life (the only life we know of). Complex life also needs temperature regulation. This can be provided externally by a stable climate and atmosphere. The tilt of the earth allows us to have seasons that take care of that requirement. Also, our bodies need to be able to regulate their own temperatures. Your body expends most of its energy just regulating body temperature. If your body temperature fluctuates just a few degrees, you could be in serious trouble. Scientists believe that we are currently in a short phase of the earth that allows us to have complex life on it. The earth has been through very long periods of extreme cold called "ice ages" that are interupted by short periods of moderate warmness. We are in one of those "warm" periods now. When I say short, I mean several million years. This is a short synopsis of what we know requires life here on earth. Let's now look outside of earth.

We know that water exists elsewhere in the universe. Frozen water (regular old H2O) has been found in comets. There is a theory called "panspermia" that says comets seeded the earth with water and bacterial organisms that evolved in to the lifeforms we have today. We also know that several planets and moons in the solar system have - or once had - water ice on them. Titan, one of Saturns moons, is covered in ice and there are areas of the surface that some researchers believe may have liquid water under the surface. Mars has frozen carbon dioxide for its polar caps, but there is water ice in the center of these caps. It has also been long thought that there were once canals of running water on Mars. Spirit and Opportunity, the two robots that we have exploring Mars right now, have found minerals that can only be formed in liquid water. If we find evidence of fossilized bacteria on Mars than that will mean that life has formed on not one, but two planets in our solar system. This is very significant! There are probably billions of solar systems in our Milky Way galaxy alone. There are also billions of other galaxies in the universe. If it is possible that life formed on Mars as well as on Earth, than it doesn't take a genius to realize that it is highly probable that life has formed elsewhere too.

Will we ever know communicate with advanced life forms? To answer yes or no would be pure speculation. However, the odds are not so great for that to happen. For one thing, advanced human civilization with technology for sending communications into space has only been around for about a hundred years. The universe is considered to be over 15 billion years old. There could have been an advanced civilization that was sending out signals 10 billion years ago and we would never know it. Not only do the two advanced life forms have to exist in a similar frame of time, they would have to be close enough to allow communication. So far, the fastest thing in the universe that we know of is light. We could send out signals encoded within light but even that would take so long to reach the farthest galaxies that human civilization may disappear before it gets there. Many of the stars that we view in the night sky no longer exist. We are seeing the light that they produced billions of years ago before they burned out. In a very real sense, when you look up into the night sky, you are literally looking back in time.

There are a lot of things to consider when thinking about the possibilities of extraterrestrial life. It is something that has been debated for years and will continue to be. I hope that I hit some of the high points here and did not bore you too much.

Answer 2

I don't know, but I think there probably is, because the elements of life are very common, garden-variety chemicals, the sun we orbit is a very ordinary middle-class sun out of billions in our galaxy (not to mention countless trillions in other galaxies!), and there are so many suns with planets, that several have already been spotted in range of our telescopes. Explore enough plain old suns like ours, and you're bound to find a whole bunch of them with planets constituted like ours, in the same range of distance from their suns, tilted at about the same angle, and some of them are likely to have organic compounds, and, of those, I think some of them will have life on them, advanced to one stage or another. And, even if not, who is to say that life can't arise under different conditions? Look at all the stars in the night sky, and remember that you are seeing only a fraction of the stars in the universe. Saying we're alone in the universe would be almost like waking up in a big hotel in a big city, looking out the window and seeing scads of other buildings all lit up, and saying, "Well, as far as I know, I'm the only living being in New York City!" (Well, the chances are a lot less than that: the obvious difference is that, in New York, we can assume that people are what turned on the lights, whereas when you look at the stars you can only guess that maybe some of the "lights" have produced living organisms. There are, after all, a lot more stars in the universe than there are light-switches in New York city, and a lot of those celestial lights are bound to have life, I think!) I don't know if I have ever seen a space alien, but I have seen people every bit as odd as the aliens that showed up on "Star Trek" and "The Men In Black". I have been compared with a space alien myself.

Answer 3

surely yes. See we know that earth is the only planet of sun having life.but in this universe there is possibility's to have a sun like star with earth like planet. I have never seen an alien .

Answer 4

Yes I believe there is life away from earth. But I haven't seen one. Never been there. Yet.

Answer 5

I don't know, I never believed in aliens, but onw night, i was laying down on my trampoline, and I saw something go by in the sky REALLY fast. I thought it was a plane, but the lights were like flashing in a circular motion. I thought I was crazy, but my cousin said that she saw it too

Answer 6

It will be nice that you read Eric Van Daniken's series of books starting from chariots of the Gods. As a school boy he was interested in UFOs and his journey initially to Russia and later on to almost all corners of the world taught him that the gods we pray are visitations from other planets and he does feels there is a creator.

Answer 7

No,I don't believe in aliens. I 'd never seen im my whole life..

Answer 8

yes, I believe there is life away from earth although I have never seen one myself. Although we human need to survive on oxygen, we can not assume life away from earth need oxygen as well. The universe is endless, we'll never know....

Answer 9

Statistcally speeching, i think that it is almost certain that there is intelligent life somewhere else in the universe. in fact, i think that there may be thousands of intellegent alien species scattered throughout the entire universe...but only time will tell ...and no, I've never seen one of them...lol... :)))

Answer 10

No one have seen one. But they are out there. At this point it is only a guess but could possibly true.