do you think other life exists anywhere else in the universe

(Any input is welcome)

There has to be. The universe, as far as we can tell, is vast, and there's more beyond that. What that life might be, well, :dunno:. Maybe just some simple one-cell organism, or some advanced life-form like humans. Odds favor other life.

Some years ago, Issac Asimov published a rough estimation.
Generally, this galaxy has 100 billion stars. Some stars will not have planets.
Some will have gas giant outer planets (like Jupiter and Saturn) which are thought to be essential in allowing the formation of rocky innner planets (like Mercury, Venus, Earth and Mars).
Some of these rocky planets will be at the correct distance for liquid water to exist and be large enough to hold onto it (unlike Mars).
Based on a very conservative estimate, Mr Asimov concluded that there are 100,000 planets just like Earth.
Given that our Earth has had life on it for approx. 80% of the time since its formation it may be reasonable to conclude that there are 80,000 planets with life on them.

Some years ago, Issac Asimov published a rough estimation.
Generally, this galaxy has 100 billion stars. Some stars will not have planets.
Some will have gas giant outer planets (like Jupiter and Saturn) which are thought to be essential in allowing the formation of rocky innner planets (like Mercury, Venus, Earth and Mars).
Some of these rocky planets will be at the correct distance for liquid water to exist and be large enough to hold onto it (unlike Mars).
Based on a very conservative estimate, Mr Asimov concluded that there are 100,000 planets just like Earth.
Given that our Earth has had life on it for approx. 80% of the time since its formation it may be reasonable to conclude that there are 80,000 planets with life on them.

Yeah, and that's JUST the galaxy. I agree, there has to be life of some manner out there, odds favor it.

there are also thousands of galaxys just in the 1% of the universe that we can see

Based on the numbers people can come up with, you'd think that we would have found at least one scrap of evidence by now. One radio wave, one microwave, one blip on the radar.

The more amazing thing is, based on the numbers, is that we haven't seen life anywere else. Makes you wonder why.

http://science.howstuffworks.com/extraterrestrial-life-odds.htm/printable

among other things...

And yet his enthusiasm must be tempered by what scientists call the Fermi Paradox. This paradox, first articulated by nuclear physicist Enrico Fermi in 1950, asks the following questions: If extraterrestrials are so common, why haven't they visited? Why haven't they communicated with us? Or, finally, why haven't they left behind some residue of their existence, such as heat or light (http://science.howstuffworks.com/light.htm) or some other electromagnetic offal?

The more amazing thing is, based on the numbers, is that we haven't seen life anywere else. Makes you wonder why.. (http://.)
Assuming the other life will be something as we know it....or something that the human brain could even comprehend...

Assuming the other life will be something as we know it....or something that the human brain could even comprehend...

Nope, that doesn't wash. Unless that life somehow skipped strait to a Star Trek fantasy world, they would be using radio, xray, microwave or other forms of light that would stick out like a sore thumb to anyone who was looking (much like Earth does).

yes i do. too many tapes of ufo and gost caught on tape or the sound of the ghost.but why does the higher power let them come back on gost and some not. like my brother and my one and only son.but can't egnore the ufo like i said to many tapes.and there all wrong yah right.

Unless that life somehow skipped strait to a Star Trek fantasy world,
Could have...:licka:
How many times have you lost something only to find it where you least expect it?
....never know. :dunno:

yes i do. I think there are.

If the chances of life forming on another planet is one in a billion, that leaves still over one billion planets that life can form - Richard Dawkins

Life is defined as self-replicating organisms, so I have no doubt that life exists elsewhere, but intelligent life? Well I like to hold close that we are alone on that one, but its nice to think about.

Don't forget that these planets are mind bogglingly far away. Even IF an alien race has been around long enough to be sending out electromagnetic signals (we've only been doing it for 100 years now?) And those same signals were powerful enough to be received by us (which they're not. Our own radio signals get dissipated to basically nothing by the time they reach the edge of our solar system, if not getting completley destroyed by other cosmic events), most of them would still take thousands upon thousands of years to reach us.

And perhaps they figured out that there really is no way to travel at or above the speed of light, so we all might as well be infinitely far away from each other.

So I'm for the idea of life, even intelligent life as something we'd recognize living on other distant planets. But I also believe that we'll never really know.

to think the we are the only (semi) intellegent race in this universe is arrogant the universe it massive beyond our comprehension and to think our galaxy is a big part of it is ludicris our galaxy is an miniscule billionith of a fraction of the size of this universe and its named the milky way galaxy shouldn't that tell us some thing about our selves as a civilization

any one ever wonder if there is a paralel universe?

As an aside, it amazing how many people will believe in the existance of aliens even though there is not one shred of evidence that any exits, but scoff at people who believe that god exists with the same lack of evidence.

I happend to believe in both. :sunglasse

we as humans don't even know every thing on "our" planet deep sea exploration for example does any one have any ideas on whats still to be discovered on our own planet just think about this for a second we've never seen any thing bellow 2500 feet under water at the same time imagine the universe as an ocean we only know a limited amount of it because technology is only so advanced once we are able to build some type of communation that its signal will match or even break the speed of light then we will start to find out other things untill then.......... its the waiting game

As an aside, it amazing how many people will believe in the existance of aliens even though there is not one shred of evidence that any exits, but scoff at people who believe that god exists with the same lack of evidence.

I happend to believe in both. :sunglasse


The irony is anyone from either side dismissing the other side as crack pot crazy talk.:lol2:

we as humans don't even know every thing on "our" planet deep sea exploration for example does any one have any ideas on whats still to be discovered on our own planet just think about this for a second we've never seen any thing bellow 2500 feet under water at the same time imagine the universe as an ocean we only know a limited amount of it because technology is only so advanced once we are able to build some type of communation that its signal will match or even break the speed of light then we will start to find out other things untill then.......... its the waiting game

All electromagnetic radiation, such as radio waves, travel at the speed of light...

We have also gone far below 2500 feet

Its just in the grand scheme of things, the speed of light isn't all that fast. And our electromagentic signals get dissipated anyway, nobody's going to hear us outside of our own solar system.

wormhole ftw

Ok stright up i do think there are other life form. but my queston is. why dose nasa think they can only exist with water?

and with so many planets whos to say. they can only survive. based off how we do?

Yup, There just has to be, we can't be that egotistical to think in a
universe this vast that we are the only one!

Consider the possibility that "life" is a fundamental force of the universe. Just like gravity, electromagnetism, and the strong and weak nuclear forces.

I think NASA is searching for carbon based life, which by scientific consensus needs water. There may be some other life forms out there that don't, but right now there's no evidence and they only exist for sure in the minds of science fiction writers.

why dose nasa think they can only exist with water?

NASA doesn't know what else to search for - so they only search for what they know. The people at NASA would love to discover some alien life that could only exist in the presence of ammonia or methane - for example. But without a reason to think it happened, they won't spend the resources to investigate every planet with ammonia or methane.