Proof? So far, no...
But to quote a line from the movie "Contact" by Dr. Ellie Arroway (Jodie Foster):
"The Universe is a pretty big place. It's bigger than anything anyone has ever dreamed of before. So, if it's just us, it seems like an awful waste of space. Right?"
You can substitute the term "Milky Way Galaxy" for the "Universe" as it also is a "pretty big place...bigger than anything anyone has ever dreamed of before."
The nearest star requires light from our Sun to travel roughly 4.5 years to get there. And there are Billions and Billions of stars in our Galaxy (as Carl Sagan would say).
There are also Billions and Billions of galaxies in the Universe.
In our Galaxy alone, we've found over 270 planets rotating around stars, more are being added daily. But we can only see the "big ones": Jupiter size or larger. Small stuff, like our planet Earth, are virtually invisible to us. Any other intelligent live form scanning our own solar system would have the same problem. Yet we still exist.
So does life exist in other parts of our Hugh Galaxy, let alone the Universe? You can bet the Farm that it does. To logically assume otherwise would be "a waste of space".
2007-12-26 19:49:02
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answer #1
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answered by The Professor 4
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There is no proof that there is life anywhere but Earth.
However, we know there are 200 billion stars in the galaxy; more than 30 for every person on Earth. Even if only 1 star in a million had a planet with life there would be 200 thousand planets in the galaxy that had life. We know that the conditions that give rise to life (water, warmth, and organic matter) are nothing terribly extraordinary, cosmically speaking. We know that life arose quickly on early Earth, suggesting life develops easily when conditions are right.
So the odds of there being some kind of life out there are very, very high. Even if life is very rare they're still very high, because the galaxy is so huge.
2007-12-26 12:54:25
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answer #2
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answered by Somes J 5
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Planet Earth was especially and Uniquely designed to support biological Life. Hence the Earth has more diversified elements than any other Planets we know.
WE have not been able or allowed to observe any other planets which support Life as the Earth does in this immense Universe. No one have seen any mangos or other fruits in the other Planets of our Solar system. Most Planets are in a Gasous solid state. None support vegetation ,let alone Humans.
So how does all this fit in in the scheme of such a large Universe with only a tiny spec of dust which is the Earth. There must be a purpose for everything in this Universe. If it was not the Case , then why should it exist. "To be or not to be" that would be the question..
2007-12-25 22:06:50
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answer #3
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answered by goring 6
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It's stupid to assume that their is no live anywhere else in the galaxy. It's a huge place to look.
I don't think earth is that special to have living organisms, and no where else in this Galaxy has nothing. Not even bacteria.
Everyone thinks of extra terrestrial life as being better then us and more cleverer. There could be a planet over the over side of the galaxy that is just started to have life evolve.
In conclusion, nobody knows if their is life in other planets, but it's naive to think that we're the only ones.
2007-12-25 20:42:43
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answer #4
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answered by Anonymous
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Other life in our solar system is relatively unlikely, however life in other parts of our galaxy or other galaxies across the universe is quite another story. Our galaxy, which is relatively small, is approximately 100,000 light years across. To give you an idea of how big that is light travels at about 186,000 miles a second. You do the math. Then multiply that by the billion galaxies that are known. And keep in mind, our view of the universe is obviously very limited. So I think to suggest that we're the only spec of dust with life on it is a bit brash. The area is so huge the odds are simply for it.
2016-05-26 06:36:58
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answer #5
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answered by Anonymous
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No Sir there is no proof that we know of that life exists on other worlds besides earth, But the chances are very good because if you think about all the stars in our galaxy alone are countless and let alone the billions and billions of galaxys with trillions and trillions of suns just like ours there must be life out there, The odds are to great to think otherwise,,
2007-12-25 21:17:25
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answer #6
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answered by SPACEGUY 7
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A long time back NASA established a center of it called SETI. Though US congress has already cancelled all the budget allocation for it and now it's working on private funding. They use strong radio signal and send them to the space and wait for any reply.
Our outer space has several galaxy and we don't have very good technique to do a fine search for life beyond our galaxy.
Life may exist in one or more galaxy. They may have already started searching us i.e. for them we are ETI. Visit the following links to get more on this.
2007-12-25 20:22:41
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answer #7
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answered by Roy 1
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Probability suggests there must be.
Looking for proof with our feeble modern day science says nothing. The galaxy could be teaming with intelligent and we may never know.
This begs the question whether finding other life has meaning.
2007-12-26 13:51:31
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answer #8
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answered by Anonymous
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the best "proof" that we're not alone are these two ideas:
1. our mere existence proves that the universe is capable of supporting life.
2. homogeneity of the universe
combine the two and you have a hell of a strong case for life elsewhere in the universe.
2007-12-25 22:33:45
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answer #9
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answered by wtjui 3
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The proof is all around you.
Just look at the television shows and movies that have come out over the years... only an alien life form could have come up with some of those ideas.
I mean, a talking car?
:)
2007-12-25 20:18:22
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answer #10
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answered by apostrophous 3
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