Do you believe that life on Planet Earth originated from outer space?
970160
Yes, I do because Earth is not a closed system. If it were, meteorites would never hit.  I have an interesting comparison (to me at least)  about comets "seeding" the earth....... have you ever noticed that earth resembles an "egg" and comets resemble sperm?  they have heads & tails like sperm...... and the term panspermia......... just a thought.......
80460
If you address this question from a scientific perspective and not necessarily a theological perspective, you will realise that originally the earth was nothing more than a big lifeless rock.\nSome people believe that life was brought here on earth from extraterrestrial origins.\n\nIf this be the case, then even if all life on earth is destroyed, there is a definate possibility that the seeds of life that were brought to earth countless millenia ago may also restore life countless millenia in the future.\n\nShould you wish to disagree with this theory, then scientifically speaking, it is probable that the process which caused life to erupt on earth - a lifeless rock eons ago, might reoccur in the future.\n\nSo, is there a possibility that a new life may be created if all life on earth was to end? Yes, there is a possibility.
993128
The origin of the first life form is actually indeed unclear.  What makes this so difficult is not that one cannot envision molecules that replicate themselves by having certain enzymatic activities.  Rather, if all recent life forms go back to one ancestral species, how did all those parts shared by recent species come together?   (For example, cell membranes, organalles, the nucleic acids etc.)\n\nNow, you are absolutely right that there is an assumed parent species, an ancestor to all other species on the planet.  But science does not show at all that life cannot derive from non-life.  Quite on the contrary, science would suggest, since all the individual parts of which living cells are composed are by themselves not alive, life must emerge from the higher-level organization.  The idea is the following: the properties of the parts of a system do not predict the properties of the whole.  Take water, which is composed of two gases.  Nothing in the properties of either gas suggests or makes predictable that H20 is a translucent liquid with a density anomaly.  The same holds true for biological systems.  Life seems to emerge at one point of complexity as a property of the union of non-living parts in complex systems such as cells.  How that happens is unclear.\n\nNow, I am not familiar with the theory you mention.  As a biologist who has focused much of his work time on evolution, I cannot say that this is a commonly held opinion.  But your question is a very good one:  If that indeed were the case, don't we just push the point of origin one level backwards?  Some scientists opt for the pansperm theory, according to which life came from out of space.  Not to wory, I am not talking UFO's etc.  Rather, amino acids and nucleic acids have been found in space.  The idea comes in two major flavors, namely one, that life originated on earth from these parts that were brought to the surface of the planet by means of meteors and then came together to form life.  The other flavor is that this happened on another planet and that the living cells were transported by meteroites to earth, which likewise would push the problem of the origin of life backwards, just as the "other dimension idea" (which to me seem rather strange and unscientific).
401937
It is unlikely that a "creator" would be from another planet since the observable universe begin to expand at the same time and planets did not exist until long after the "big bang."\n\nBut, if we go down that road, it is possible that life from another universe got sucked into a black hole (or something similar) in their universe which led into this universe.\n\nAnd that began the process of evolution in this universe. Earth was just a place where conditions were favorable for development when their microbes landed here.\n\nThe possibilities are unlimited and will drive you insane if you attempt to consider all of them.
1089748
no, but it would be very stupid to assume that Earth is the only planet that can sustain and contains life.  the universe is gigantic.  i don't think any human can truly grasp how vast the universe is.
1064060
The Big Bang is not a theory of the earth's origin. It is a theory of the origin of the whole universe. The earth wasn't formed until about 8.7 billion years after the universe started.\n\nThe predominant views of the origin of the earth are all variants of the nebular hypothesis which states that a cloud of gas and dust collapsed forming the sun and the solar system. There was a period of intense collisions where the planets grew through accretion. Most of the volatile chemicals (hydrogen, helium) were blown away from the planets near the sun due to solar wind (which was more intense when the sun was young).
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
158057
alot a people say that there are lives on other planets bout think about this, if they were life on other planets wouldn't they have been in contact with us or we would have picked up their radio signals if they were that advance in technology and we would have gotten visitors very often.\n\ni read in a book, the man said if there are life on other planets that means they would be as advanced as us humans, more advance than us, or still in there type of stone age. \n\nif they are as advanced as us, we would have been in contact with them(as i said earlier). If they were more advanced than us(as alot of people say) they would be visiting our earth for holidays and coming to see our civilizations. and if they are still in the stone age, we would be able to pick up they communications.\n\nit is true that bacteria was found but no from of intelligent life is out there. remember in Genesis it was said we are created a lil lower than angels, crowned with glory and honor. We are made to have dominion over all other life, so tell me this if God made us like that then why would he make something that would be better than us? We were made perfect, he actually used his hands to formed us to show us how special we are to Him, all the other animals were bought from Him talking.
306121
I would like to say that there is intelligent life in the universe besides on Earth.  Humans have gone from believing that the Earth was at the centre of all existence and the Sun and all "heavenly bodies" revolved around it, because from our Point of View it seemed that way.  Then we discovered that no, the Earth actually goes around the Sun, and there were other planets...and other suns...and other planets around other suns!! And so on.  \n\nSo why wouldn't this 'decentralising' process extend to the existence of life?  I like to think it gives us an appreciation that life itself is a natural, universal process that, where the conditions are right, would happen throughout the universe.  "Intelligent" life is a bit curlier to argue.  If intelligent life was a natural process, why have we not had communication with aliens?  We could assume they are as curious as humans are to seek life elsewhere, and humans have been sending signals into space for decades.  I cannot answer this; even if it does exist numerous places in the universe, the vastness of space may be just too great.  \n\nThe idea of intelligent life elsewhere appeals to me as it knocks us humans off our high horse, and our presumptuous and arrogant viewpoint that we are privileged with our intelligence (and yes, humans are intelligent, although one wonders sometimes).
212239
The theory states that life on Earth was "seeded" by life carried in by a meteor.  In order to have any support at all, we would have to discover life outside the Earth, and show that its related in some way to life here.  Since life outside the Earth hasnt even been discovered yet, there is no basis whatsoever to support this idea.
220501
Considering that we are of the same stuff that all other life on Earth is made of, it seems very unlikely.  Of course that does not eliminate the possibility that life on Earth was seeded from some outside source 2 billion years ago.
1126911
I believe there is life other than on Earth. Even if just mathematically!\nAn interesting point though, is that the authorities on this field have concluded that the nearest system that COULD support life is Sirius. That's interesting, because throughout history, the more believable tales of alien contact seem to all point to that star system. The Dogon tribe are a classic example of that. They apparently knew of Sirius A and its two companions(Sirius B and Sirius C) long before any 'civilised' society. Sirius C has yet to be discovered, but could well be there! I quote from Wikipedia: "Apparent orbital irregularities in Sirius B have been observed since 1894, suggesting a third very small companion star, but this has never been definitely confirmed." \n\nAs to us being Parasites on this Living Planet, I couldn't agree more.
362430
I think we would be very naive to believe we are the only life form in the universe.As vast and diverse as it is,I believe there has to be a reason for the formation of these planets to sustain life.That said,who knows when the life was present on these planets?And who knows what life forms are out there as we speak?Perhaps Mars and Pluto had life trillions of years ago but there are no remnants now for us to find.It's a fascinating topic.If you think about the possibilities,it's incredible.
356008
At the present time, we just don't know.  If you saw pictures of aliens, what you saw were fake.  Nobody on earth has yet to produce a verifiable image, photographic, electronic or hand-drawn, of a living creature that originated elsewhere in the universe than from our home planet.  Nobody.\n\nAlso, at the present time, we suspect that there is no other planet in any nearby solar system that's host to a sentient race of beings like us.  That does not mean that some form of what we call "life" is impossible, but just think: out of the billions of living critters that now inhabit, or did in the past, our home planet, only one of those life forms evolved to the point where it (us) can even begin to think about such questions.  That by itself will tell ya we're sorta unique! ;-)\n\nIt sure would be interesting, wouldn't it?  But imagine if you will what it might be like if those alien creatures we fantasize about were an advanced race of carnivores that look upon us as another breed of cattle, fit only for eating!  Yow!  Or, how about if they were friendly, warm and fuzzy folks who just love to make nice with us - but they carry an infectious disease that there's no cure for.  Oh boy.  Or maybe, like Darth Vader, they just consider us a nusiance worthy of one blast from a super-mega cannon that blows Earth into dust?  Whoa!  Hey dude: you SURE you wanna meet aliens?  \n\nAll this is just idle speculation.  The hard fact is, even if there were creatures just like us somewhere in the universe, we are not gonna know about it, because the distances between them and us are just too great to permit interstellar travel, the hazards of such a trip are insurmountable, and no means of communication can travel fast enough for us to hear from them and be able to answer back.  Kind of a bummer, isn't it?
76325
Life has to be on other planets throughout the Universe - it's statiscally impossible that Earth was the only planet where life evolved - unless of course you are a staunch Christian and don't believe in the evidence or statistics!
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.
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...