Sci - Goldilocks planet is no fairytale

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Super Nova
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Sci - Goldilocks planet is no fairytale

Post by Super Nova » Mon Dec 05, 2011 8:29 pm

Just to broaden the topics here.

Is anyone interested in science?
WHAT does Goldilocks want? At least four times in the last few years, astronomers have announced they have found planets orbiting other stars in the sweet spot known as the habitable zone - not too hot, not too cold - where water and thus perhaps life are possible. In short, a planet fit to be inhabited by the biochemical likes of us, a so-called Goldilocks planet.

None are known to be habitable - let alone inhabited - yet, but astronomers who are making the discoveries with NASA's Kepler spacecraft are meeting next week in California to review the first two years of their quest, which seems tantalisingly close to hitting pay dirt.

''Sooner or later, Kepler will find a lukewarm planet with a size making it probably Earth-like,'' Geoffrey Marcy of the University of California, Berkeley, said.

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''We're no more than a year away'' from such a discovery, he said.

Sara Seager, a planetary astronomer at the Massachusetts Institute of Technology, put it this way: ''We are on the verge of being those people who will be remembered.''

All this has brought to the fore a question long debated by geologists, chemists, paleontologists and cosmologists-turned-astrobiologists, namely: What does life really need to get going, flourish and evolve on an alien rock.


Read more: http://www.theage.com.au/technology/sci ... z1fePiC2ck
This is great. The future is in us finding other places to move to.

I can't wait to find life that evolved independently from our own.

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boxy
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Re: Sci - Goldilocks planet is no fairytale

Post by boxy » Mon Dec 05, 2011 11:29 pm

You are foolish to wish to find other, evolved, life in the universe. It is more likely than not, to be aggressive, and expansionist... just like us.

Any other lifeform would be sitting back, inconspicuously, vegetating.
"But you will run your fluffy bunny mouth at me. And I will take it, to play poker."

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annielaurie
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Re: Sci - Goldilocks planet is no fairytale

Post by annielaurie » Tue Dec 06, 2011 12:30 am

Not only that, we wouldn't be able to get there using the primitive propulsion drives we have today.

A trip even to the nearest star Proxima Centauri, which is 4.22 lightyears from our solar system, if we used ion drive propulsion it would take 81,000 years to get there.

If we traveled by gravitational assistance - like unmanned Voyager I - using the gravity well of the sun as a slingshot into deep space, it would take 19,000 years to get there.

Now if we were eventually to develop nuclear pulse propulsion drive, it would take 85 years to get there.

Any remotely earthlike planet in another solar system would be farther away than Centaurus, such as hundreds or even many thousands of lightyears.

A single lightyear is a measure of distance - exactly 9,460,730,472,580.8 km - or about 5,878,625,373,183.608 miles.

:gup
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Super Nova
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Re: Sci - Goldilocks planet is no fairytale

Post by Super Nova » Tue Dec 06, 2011 1:48 am

boxy wrote:You are foolish to wish to find other, evolved, life in the universe. It is more likely than not, to be aggressive, and expansionist... just like us.

Any other lifeform would be sitting back, inconspicuously, vegetating.
I think it would be foolish to find them until we have some serious technology and it would only be safe if we were superior in our ability to attack/defnd ourselves. The problem will be that we will not knwo this until we meet them.

Bloody hell, our first contact could be the end of the human race. We need a "Q" to help us.
annielaurie wrote:Not only that, we wouldn't be able to get there using the primitive propulsion drives we have today.

A trip even to the nearest star Proxima Centauri, which is 4.22 lightyears from our solar system, if we used ion drive propulsion it would take 81,000 years to get there.

If we traveled by gravitational assistance - like unmanned Voyager I - using the gravity well of the sun as a slingshot into deep space, it would take 19,000 years to get there.

Now if we were eventually to develop nuclear pulse propulsion drive, it would take 85 years to get there.

Any remotely earthlike planet in another solar system would be farther away than Centaurus, such as hundreds or even many thousands of lightyears.

A single lightyear is a measure of distance - exactly 9,460,730,472,580.8 km - or about 5,878,625,373,183.608 miles.

:gup
I think the biggest obstical will be the damage a small particle could do when we are travelling at speed. We need a shield system to deflect fast moving particles, rocks and bigger rocks. Otherwise the chance of getting there no matter how long it will take is low.

We need to do something about the time it takes. A revolution in our understanding of the universe neneds to occur,. Hopefully we will find the Neutrino speed experiment show it does travel faster then light, we rebuild our model, discover we can travel faster than light and then.... we are off and running.
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AiA in Atlanta
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Re: Sci - Goldilocks planet is no fairytale

Post by AiA in Atlanta » Tue Dec 06, 2011 1:59 am

boxy wrote:You are foolish to wish to find other, evolved, life in the universe. It is more likely than not, to be aggressive, and expansionist... just like us.

Any other lifeform would be sitting back, inconspicuously, vegetating.
That is the same mistake in thinking God is like us.

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Super Nova
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Re: Sci - Goldilocks planet is no fairytale

Post by Super Nova » Tue Dec 06, 2011 2:25 am

God is like us, we invented him/her.
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Re: Sci - Goldilocks planet is no fairytale

Post by AiA in Atlanta » Tue Dec 06, 2011 4:07 am

You may want to consider that alien life has evolved out of violence and domination. I mean, the universe is 15 billion years old ...

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AiA in Atlanta
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Re: Sci - Goldilocks planet is no fairytale

Post by AiA in Atlanta » Tue Dec 06, 2011 4:08 am

Super Nova wrote:God is like us, we invented him/her.
That isn't God. That is an anthropomorphic projection. We do the same thing regarding alien life.

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boxy
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Re: Sci - Goldilocks planet is no fairytale

Post by boxy » Tue Dec 06, 2011 12:52 pm

AiA in Atlanta wrote:
boxy wrote:You are foolish to wish to find other, evolved, life in the universe. It is more likely than not, to be aggressive, and expansionist... just like us.

Any other lifeform would be sitting back, inconspicuously, vegetating.
That is the same mistake in thinking God is like us.
Not really. Convergent evolution. Any race with the drive to dominate an entire ecosystem, which is what it takes to make the leap to space travel, would need to be similar to us in lots of ways. To expect them to all suddenly evolve an "enlightenment gene" once they find new, inter-planetary, territories to expand into, seems to be wishful thinking, to me.
"But you will run your fluffy bunny mouth at me. And I will take it, to play poker."

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AiA in Atlanta
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Re: Sci - Goldilocks planet is no fairytale

Post by AiA in Atlanta » Tue Dec 06, 2011 1:59 pm

boxy wrote:
AiA in Atlanta wrote:
boxy wrote:You are foolish to wish to find other, evolved, life in the universe. It is more likely than not, to be aggressive, and expansionist... just like us.

Any other lifeform would be sitting back, inconspicuously, vegetating.
That is the same mistake in thinking God is like us.
Not really. Convergent evolution. Any race with the drive to dominate an entire ecosystem, which is what it takes to make the leap to space travel, would need to be similar to us in lots of ways. To expect them to all suddenly evolve an "enlightenment gene" once they find new, inter-planetary, territories to expand into, seems to be wishful thinking, to me.
In just a short span man has gone from beating on a drum to Mozart. It isn't hard to imagine the evolution out of violence into something better.

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