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alien life possibility is pathetic

makaya325 said:
Please listen: The fact that life on earth was a freaking miracle proves that, despite many galaxies, alien life in no shape or form could ever exist. I would wager that 90% of members on jref would agree.
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Given the present "reach" of our technology, we have no way of knowing or of finding out. Nothing's proven; nothing's disproven. We simply don't know.


M.
 
I can easily imagine a planet for which conditions for complex life are far from perfect.

This planet while having an atmosphere, still wouldn't block 100% of the harmful UV light that its star radiates down on it.

This planet would be tectonically active, with magma constantly spewing up and plates shifting, presenting calamitous disasters to any life which might evolve.

This planet may have a moon in an unstable orbit.

This planet would not be in an empty section of space, and so periodically would be the target of planet-shaking asteroid strikes. In fact, meteors would strike it on a daily basis.

It would be tilted on its axis, so as to have an unstable weather pattern. Any life form would be required to adapt to changing conditions on a yearly basis.

The planet as described could be seen as utterly inhospitable. Then again, it could be called "Earth".
 
You'd think one would grow very impatient, looking out into space.
Waiting to see something that has already happened a Billion years ago.
Then we have to deal with mathematics.
 
Answer this: what are the chances 1000's of unique events happened again? Do you not understand that, as of now, our solar system is pretty unique and our galaxy is alot safer and larger than most galaxies in the universe?
 
makaya325 said:
Answer this: what are the chances 1000's of unique events happened again? Do you not understand that, as of now, our solar system is pretty unique and our galaxy is alot safer and larger than most galaxies in the universe?
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Answer this: which 1000's of unique events were needed to create life on Earth? (Complete list please) And why are all of those absolutely necessary to create life?
 
makaya325 said:
Answer this: what are the chances 1000's of unique events happened again? Do you not understand that, as of now, our solar system is pretty unique and our galaxy is alot safer and larger than most galaxies in the universe?
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On what sources do you base this assessment? I know that I have not had the pleasure of traveling to distant galaxies to check them out for size and safety, but I have heard from sources I trust more than I trust you that there are a lot of them out there, and a good bit of room for things to happen. On what knowledge do you base your opinion that our little corner of our galaxy is so special?
 
NobbyNobbs said:
As of the writing of this article there are more than 200 known planets. One of them is known to have life. So, at the moment, the odds of life occurring can be said to be about 0.5%. Of course, the more planets that are discovered, the lower those odds get. However, the sheer number of planets likely to be out there makes the existence of life quite probable. Multiple times, in fact.

In fact, I'll bet that before my kids have kids (they are now 8 and 10), evidence of life will be found within our own solar system.
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We certainly haven't ruled out the existence of life on other planets in our own solar system. I think it's pretty likely that Mars either has life, or used to have life. Europa and Iapetus, moons of Jupiter and Saturn, respectively, have liquid water under ice, and therefore the possibility of life. This is assuming that water is a a requirement for life, which we don't know for sure. Titan, with lake, or maybe an ocean, of liquid methane or other hydrocarbons, is a candidate for "life as we don't know it". For that matter, I'm not sure we can positively rule out the possibility atmosphere of the gas giants, especially Jupiter, contain life.
 
makaya325 said:
Answer this: what are the chances 1000's of unique events happened again? Do you not understand that, as of now, our solar system is pretty unique and our galaxy is alot safer and larger than most galaxies in the universe?
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What are the chances they happened in the first place?

I'm no statistician, but I'll bet that the odds for something happening go up if it's happened once before. The fact that life occurs on earth increases the chance that it's elsewhere as well, as opposed to what the odds would be if there were no life on earth.

Given the fact that no one has seen an invisible flying pink unicorn, what are the odds that one exists? Now, if someone actually finds one, what are the odds that a second one exists? A whole lot better.

I think that, possibly, the best argument for life out there is that there is life down here.
 
makaya325 said:
Answer this: what are the chances 1000's of unique events happened again? Do you not understand that, as of now, our solar system is pretty unique and our galaxy is alot safer and larger than most galaxies in the universe?
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And to address your other points, our solar system isn't all that unique. New ones are being discovered on practically a monthly basis.

As I understand it, our galaxy is rather average, both in size and in whatever "safety" factor you are assigning it. Safety is relative. Radiation that is harmful to us may be a nutrient to an alien.

As far as "most galaxies in the universe"....chances are we haven't seen most galaxies in the universe yet. So you have absolutely no basis for this statement.
 
Maybe One Other Civilization Out There

I think there is no hard evidence that alien life or alien spacecraft have visited planet earth. On the other hand I think it's far more possible that somewhere in the universe a very different civilization thrives. It makes me think of the very possibility of life existing on the planet Mars. Even the tiniest form of life on that planet gives me hope that there's even more undiscovered life out there SOMEWHERE.


I'm sure there are some groups in our society whose first question would be, "Are the aliens pro-life?"
 
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Nobby, where is the proof that our solar system is not unique? All of the exo-planets are a joke, most are hot jupiters, and the so called "Terrestrial ones" are way too deadly to support, neverthless create, any form of life. The conditions in space make extreme places on earth look habitable.
 
Nobby, your wrong that life on earth supports life elsewhere. In the last couple of decades, scientists have made discoveries that point to earth being somewhat of a planet that is incredibly rare, if not non-existent elsewhere.
 
A tiny part of the observable universe:

600px-Hubble_ultra_deep_field_high_rez_edit1.jpg


Also, I would like to know how much of the observable universe this picture covers.

Big version (6200x6200)
 
Bell said:
A tiny part of the observable universe:

[qimg]http://upload.wikimedia.org/wikipedia/commons/thumb/0/0d/Hubble_ultra_deep_field_high_rez_edit1.jpg/600px-Hubble_ultra_deep_field_high_rez_edit1.jpg[/qimg]

Also, I would like to know how much of the observable universe this picture covers.

Big version (6200x6200)
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Whoa, what does this picture constitute as, other than the fact that 95% of the galaxies here are deadly and inhospitable?
 
makaya325 said:
Whoa, what does this picture constitute as, other than the fact that 95% of the galaxies here are deadly and inhospitable?
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It shows how big and full of galaxies the universe is. And this is only the observable part. Quite a show!

Speaking of show:

Can you show us the list with the thousands of unique events that are needed to create life? The full list will do.
 
makaya325 said:
Answer this: what are the chances 1000's of unique events happened again? Do you not understand that, as of now, our solar system is pretty unique and our galaxy is alot safer and larger than most galaxies in the universe?
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No. The second fact is completely untrue. Spiral galaxies are extremely common in just the part of the unvierse we can see. As to the first, we have no way of determining how unique our solar system is.
 
Bell said:
A tiny part of the observable universe:

[qimg]http://upload.wikimedia.org/wikipedia/commons/thumb/0/0d/Hubble_ultra_deep_field_high_rez_edit1.jpg/600px-Hubble_ultra_deep_field_high_rez_edit1.jpg[/qimg]
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Note the large number of spiral galaxies.
 
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