Life Filled Galaxies?

Question

Has anyone ever wondered if there were any other galaxies(thereare billions of them) that have planets with life in them? even the ones billions and billions of light years away? Would we ever find one?

Answer 1

Yes. I do believe that galaxies are filled with life. My best evidence is that we exist, and as you say, there are billions of galaxies. Actually, trillions, I think, that we can see with the Hubble Telescope. What other purpose would there be for their existence? We are the sentient result of the universe becoming self-aware. That is so cool! Would we ever find a galaxy with life in it? "Ever" is a broad stroke, so I would have to say yes. In a 1000 years? I don't know, I don't think so. Will we survive another 1000 years? I don't think so. The Earth's polar cap is melting at 3 times the rate it did just 10 years ago. If the Earth loses its ability to reflect sunlight, it will be like Venus. Boiling hot with hydrochloric acid for an atmosphere. I appreciated Stephen Hawking's question on this website, and his answer is really worth viewing. He thinks that we may be able to develop interstellar travel within 100 years. I think he is an optimist. But I agree with his conclusion that we must reach the stars if we are to survive. Then again, I also believe that the Earth was doing just fine before Homo Sap arrived on the scene. One of the things Hawking points out is that maybe what happens in cosmic evolution is that a species gets so technologically smart that it always destroys itself because its intellectual/spiritual growth cannot keep up with its technological savvy.

Answer 2

There are scientists who have tried to put a number on the possibility of life. Generally they multiply many factors needed for life together. The problem with such approaches is that they invariably leave out a lot of factors that can affect the result.

I believe the probability of life is far less than most people, including scientists, believe. That is not to say I believe we are the only life in the universe; but I do believe we are a rare event.

Given how rare life is even among billions and billions of possibilities and given how vast this ever expanding universe is, I do not believe we will ever encounter extraterrestrial beings. But they do make good science fiction.

Answer 3

Because there are so many galaxies - each with hundreds of millions of stars - it's almost impossible that there aren't other Earth-like planets. So the probability of life elsewhere is almost impossibly high.

BUT the galaxies are millions of miles apart, even at the speed of light. So, until someone finds a way around that, all we can do is watch for signals from nearby stars. Even then, "conversation" is going to be very slow!

Maybe in the meantime we can learn to get along with each other here. Looks like that'll take a while too.

Answer 4

Or, in a few billion years,.. will there be any galaxy left without any form of life ? If we see life in the broader sense, as a process that is a sustainable chemical - physical - biological.. cycle, moving into more complexity with every rotation - then i am sure there is life outside of earth, even in the solar system.
Life on earth is complex, but who says that in a few hundred years earth will not "bloom" and send it's gametes spreading out, search a suitable substrate and expand life, and that for the next billions of years, instituting a new dimension of energy in the universe. Then..what will be beyond the dimension of life ?

Answer 5

Yes, many people have. Read Carl Sagan's Cosmos, or see his 13 part series to know more.

here' something from wikipedia:

Extraterrestrial life is life that may exist and originate outside the planet Earth, the only place in the Universe known to support life. Its existence is currently hypothetical; there is as yet no evidence of extraterrestrial life that has been widely accepted by scientists.

Most scientists hold that if extraterrestrial life exists, its evolution would have occurred independently in different places in the universe. An alternative hypothesis, held by a minority, is panspermia, which suggests that life in the universe could have stemmed from a smaller number of points of origin, and then spread across the universe, from habitable planet to habitable planet. These two hypotheses are not mutually exclusive.

Speculative forms of extraterrestrial life range from humanoid and monstrous beings seen in works of science fiction to life at the much smaller scale of bacteria .

Check the link below for more
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Answer 6

These are questions that have always fascinated me..I personally believe there must be life elsewhere on other galaxies. Maybe in forms we cannot imagine or even in different dimensions. Why should the earth be singled out for life? There have been so many movies and books which fuel our imagination, Chariots of the Gods by Erik von danniken for one and the jodie foster starrer "contact"for another.... otherwise - as Carl Sagan says..."its an awful waste of space"

Answer 7

Giordano Bruno, a contemporary of Galileo's, started thinking about these issues and argued that there must be other planets in the Universe around orher stars (at a time when Copernicus' ideas on a heliocentric solar system were not yet widely accepted) and wrote of the possibility of extra-terrestrial life on those planets. A man ahead of his time!

The Roman Catholic church demanded he renounce these heresies, He refused and so they burned him at the stake in 1600, Nice civilised way to conduct an intellectual debate, don't you think? Was it this that Lewis Carroll had in mind when creating The Red Queen and her peremptory "Off with their heads!" in the Alice books?

We are only now, 406 years later. beginning to get to grips with both issues he raised,

We currently know of some 200 extra-solar-system planets, and scarcely a month goes by without that total being added to, as there are now several methods of detection being utilised.

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Answer 8

we are a touch planet contained in the milky way it is in a touch team of galaxies it is in a touch cluster of communities. And thats a 'little' pat of the universe. we may be able to work out in hardship-free words a ver small fraction of each and every of the celebs accessible. One grain of sky. 2 billion stars. And thats what the hubble telescope ought to work out. mild that were speeding our way at 300000km in accordance to 2d for billions of years. And theres extra it couldnt see. most of tens of millions and billions of stars and planets. human beings say its unlikely because some planets dont have oxygen and water needed for survival. yet whos to say different lifeforms favor oxygen and water. they could favor carbon dioxide and poison! Theres most of planets accessible it must be astonishing if there become no different existence. different existence must be very diverse. maximum possibly they'll be completely and punctiliously alien. yet there'll be existence

Answer 9

the argument that we are either alone or just a common occurrence will be never ending until we uncover evidence of life outside earth...as of now it seems almost true arrogance to assume that we are the only place on the universe to be able to support life but until we are actually find life elsewhere such arrogance among many will remain

Answer 10

I'm sure there are...but I don't think we'll ever find one, or they us. There are a lot of galaxies out there, but the distances involved are incredibly vast.