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Old 06-01-2012, 05:01 PM   #1 (permalink)
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Are there other Earth like planets...

When do you think we'll have the capabilities to explore other planets and colonize em or do you think an Alien species will find us first...
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Old 06-01-2012, 05:27 PM   #2 (permalink)
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I am not smart enough for that one myself and have to call upon a higher power. Bookies. If the oddsmakers know what they are talking about, the aliens will find us first. Most likely landing in Sweden sometime after 2020.
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Old 06-02-2012, 02:56 AM   #3 (permalink)
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Of course there are other planets capable of sustaining life. To think this planet was created by god or something outlandish is just crazy. I have a feeling others are far more developed, and will find us first. We've been to busy spending our resources on war and other useless things.
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Old 06-02-2012, 08:57 PM   #4 (permalink)
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We've been to busy spending our resources on war and other useless things.
Well put. It's the unfortunate truth.
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Old 06-02-2012, 09:14 PM   #5 (permalink)
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Its not only a question of 'where' ... its a question of 'when'... in terms of geological time
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Old 06-10-2012, 12:06 AM   #6 (permalink)
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Were still in our primitive form of war, right now we are just getting really good at it. Look at all of the racism that's going on in America, look at whats going on in the middle east. It should take us another 1000-2000 years before we're smart enough to build a space craft that can travel faster than the speed of light, like a lot faster than light. We should of never went to space and finished exploring the depths of the ocean. Everyday they find some new life form on the planet like recently they found some creatures below the ice sheet in Antarctica who carry nothing but anti-freeze in their bodies. It was once thought that we could go to mars in the next 10-20 years but like I said with all the war and hatred, it's not gonna get done IMO.
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Old 06-10-2012, 08:09 AM   #7 (permalink)
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Quote:
Originally Posted by box View Post
Of course there are other planets capable of sustaining life. To think this planet was created by god or something outlandish is just crazy. I have a feeling others are far more developed, and will find us first. We've been to busy spending our resources on war and other useless things.
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It was once thought that we could go to mars in the next 10-20 years but like I said with all the war and hatred, it's not gonna get done IMO.
As sad as it is, war/fighting is quite a natural thing. Eaten or be eaten. Every species on this planet has evolved some kind of "weapon" to kill or to survive, be it fangs, claws, poison, strength, speed etc. And actually the cold war was what led to most advancements in the space programs of the US and former USSR.

As for extraterrestrial life, since the late 1980s early 1990s scientists find more and more planetsystems in space. So far they've found close to 800 planets. It's still difficult to prove Earth-like planets as our instruments are not sensible enough yet. But it's highly probable that there are a lot of Earth-like planets that could support life.

Contact with extraterrestrial lifeforms is a problem though. We can only communicate with the speed of light (so far). Most planetary systems found so far are more than a 100 light years away, so any message send would take more than a generation to arrive. To travel these distances we would need generation space ships, but by now we still struggle to make a safe travel to our moon which is a mere light second away. So unless we don't find a trick to deny our understanding of phyics, there won't be any kind of travel similar to what we do now on Earth between countries and continents.
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Old 06-11-2012, 12:40 AM   #8 (permalink)
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Just watched Prometheus...perfect tie in to this subject matter. There are many theories to explore. If you watched the film...discuss.
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Old 06-11-2012, 04:45 PM   #9 (permalink)
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I'm pretty sure there are lots of Earth-like planets in this universe. There are of course many details that all have to be taken into account when determining if a planet could be suitable for life in the form we know it, but considering that our galaxy has got 300 billion stars and the observable universe (which is just a part of the whole universe) contain over 100 billion galaxies, I'd say the chance there's no other star that has got even one earth-like planet is close to zero.

As far as any other earth-like planet being inhabited by some kind of life form, it's a bit harder to calculate the probability. We know about one earth-like planet (the Earth), and that one contains life, so that would make the probability of an earth-like planet containing life 100%. Then again if it didn't, we wouldn't know about it because we wouldn't exist, so that calculation goes out of the window... But if I'm going to make a wild guess I say I definitely think there is life on other planets.

Are there intelligent life forms on those planets? The Earth has had several mass extinction events where most of the world's species died out, and there's no evidence that any of the earlier geological eras produced any intelligent species before they were wiped out. I would assume that even if there are lots of inhabited planets in the universe, the vast majority of them would only contain micro organisms at any given time. Then again, I think it would be weird to assume that the number of planets with intelligent life would be exactly one. So my guess is a large number of inhabited planets, of which only a very small percentage has intelligent life forms.

Do I think any humans will ever meet an alien life form? Definitely not. Even if it would be physically possible with the right technology for fragile intelligent life forms to travel the type of distances that we are talking about (which of course nobody has a clue about at this point, but which i seriously doubt), I can't see how any given life form would have time to figure that out and then actually do it before it goes extinct.

I also think it's difficult for anyone to appreciate the distances we are dealing with here, since they are so far beyond the capability of our imagination. This website is pretty interesting although it didn't do much more for me than help me realize that my brain can't imagine sizes and distances that aren't extremely close to my own size: http://scaleofuniverse.com/
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Old 06-11-2012, 06:10 PM   #10 (permalink)
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I'm pretty sure there are lots of Earth-like planets in this universe. There are of course many details that all have to be taken into account when determining if a planet could be suitable for life in the form we know it, but considering that our galaxy has got 300 billion stars and the observable universe (which is just a part of the whole universe) contain over 100 billion galaxies, I'd say the chance there's no other star that has got even one earth-like planet is close to zero.

As far as any other earth-like planet being inhabited by some kind of life form, it's a bit harder to calculate the probability. We know about one earth-like planet (the Earth), and that one contains life, so that would make the probability of an earth-like planet containing life 100%. Then again if it didn't, we wouldn't know about it because we wouldn't exist, so that calculation goes out of the window... But if I'm going to make a wild guess I say I definitely think there is life on other planets.

Are there intelligent life forms on those planets? The Earth has had several mass extinction events where most of the world's species died out, and there's no evidence that any of the earlier geological eras produced any intelligent species before they were wiped out. I would assume that even if there are lots of inhabited planets in the universe, the vast majority of them would only contain micro organisms at any given time. Then again, I think it would be weird to assume that the number of planets with intelligent life would be exactly one. So my guess is a large number of inhabited planets, of which only a very small percentage has intelligent life forms.

Do I think any humans will ever meet an alien life form? Definitely not. Even if it would be physically possible with the right technology for fragile intelligent life forms to travel the type of distances that we are talking about (which of course nobody has a clue about at this point, but which i seriously doubt), I can't see how any given life form would have time to figure that out and then actually do it before it goes extinct.

I also think it's difficult for anyone to appreciate the distances we are dealing with here, since they are so far beyond the capability of our imagination. This website is pretty interesting although it didn't do much more for me than help me realize that my brain can't imagine sizes and distances that aren't extremely close to my own size: http://scaleofuniverse.com/
Well put. Our first step is colonizing Mars which will happen by 2032. It'll be a one way ticket. Followed by building bases on the moon. The gases of the solar wind could be useful for future lunar bases, since oxygen, hydrogen (water), carbon and nitrogen are not only essential to sustain life, but are also potentially very useful in the production of fuel. There's also titanium (Ti) material to construct ships.

*NOTE* Saturn's moons have more oil than Earth.

Perhaps our species would have to put all their technology in a time capsule for the future generations or species to pick up on.

So far everything we have imagined has come to life.

Candles to light bulbs.
Telephone to cell phones.
Computers
Androids
Invisibility capabilities
From automobiles, trains, planes, and eventually landing man on the moon.
Genetic cloning.
WMD

All this in a very short life span relative to the existence of Earth which is 4.54 billion years old.

I say it can be done, but it would take the intellects of every country working together. The most successful species in terms of length of existence and biomass are not humans, but ants. They work together as a single cohesive unit. I believe that's our cue along with focusing all resources and man power on research and development for space exploration like what Elon Musk is doing.

Keep the discussion going. Some fascinating stuff here...
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