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Old 01-25-2006, 06:08 PM   #1
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Possible New Earthlike Planet

Discovered. 20,000 light years away. Near the constilation Sagitaris.

http://www.cnn.com/2006/TECH/space/0...eut/index.html
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Old 01-25-2006, 06:58 PM   #2
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The definition of "earth-like" is very generous.
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Old 01-25-2006, 07:04 PM   #3
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i agree,

the likelihood of a proper size moon in the right orbit,
among other things
make a true earth like planet very remote
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Old 01-25-2006, 07:10 PM   #4
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Can we send George Bush there?
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Old 01-25-2006, 07:11 PM   #5
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I think after watching some TV they decided they dont want him either.
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Old 01-25-2006, 07:24 PM   #6
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Send a probe to the planet
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Old 01-25-2006, 07:30 PM   #7
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wow, only 20,000 light years... that means that if we invented a probe that travels at the speed of light (which we wont and can't), it would take... 20,000 years to get there!

Good times!
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Old 01-25-2006, 07:33 PM   #8
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Who knows what the future holds.
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Old 01-25-2006, 07:40 PM   #9
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Do people really think this can be the only place like earth anywhere? If it can occur once (by whatever means) it can occur again.

That we haven't found any other most likely speaks more to how far we have yet to go, than to whether or not other similar planets exist.
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Old 01-25-2006, 08:13 PM   #10
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Quote:
Originally posted by Kieran McConville
wow, only 20,000 light years... that means that if we invented a probe that travels at the speed of light (which we wont and can't), it would take... 20,000 years to get there!

Good times!
Wormholes, my friend, wormholes...

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Old 01-25-2006, 08:37 PM   #11
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Originally posted by angelordevil
Can we send George Bush there?
why bother? mars is much closer & he says we need to go there, he can be the first
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Old 01-26-2006, 02:18 PM   #12
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Quote:
Originally posted by indra
Do people really think this can be the only place like earth anywhere? If it can occur once (by whatever means) it can occur again.

That we haven't found any other most likely speaks more to how far we have yet to go, than to whether or not other similar planets exist.
The answer can be achieved based on mathematical analysis. The results you get, however, varies greatly on the number of factors you consider unique and necessary for a life sustaining planet compared to the number of stars with planets. I've seen estimates from "likely" to "highly improbable".
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Old 01-26-2006, 07:45 PM   #13
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Quote:
Originally posted by deep
i agree,

the likelihood of a proper size moon in the right orbit,
among other things
make a true earth like planet very remote
We do not have any figures for this and we cannot declare if terrestrial planets are a direct concequence of stellar formation yet.

This is important because we are developing techniques to discover smaller worlds, eventually with space based arrays we may be able to actually find earth sized planets and their equivalent distance from their parent stars, components of their atmospheres.

The rare earth hypothesis treats Earth as the best of all possible worlds, however in the infinite variety of the universe conditions conducive to life may be present in innumerable permutations.

The size of the universe may be infinite, if populated by matter then by definition an infinite number of earths exist, an infinite number of varied earths exist.
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Old 01-26-2006, 08:54 PM   #14
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Originally posted by A_Wanderer
We do not have any figures for this and we cannot declare if terrestrial planets are a direct concequence of stellar formation yet.

This is important because we are developing techniques to discover smaller worlds, eventually with space based arrays we may be able to actually find earth sized planets and their equivalent distance from their parent stars, components of their atmospheres.

The rare earth hypothesis treats Earth as the best of all possible worlds, however in the infinite variety of the universe conditions conducive to life may be present in innumerable permutations.

The size of the universe may be infinite, if populated by matter then by definition an infinite number of earths exist, an infinite number of varied earths exist.
The size of the Universe(in terms of mass) is finite and its been shown that there is not enough mass in the Universe to reverse the expansion.

"Life" in the Universe may be widespread, but it depends on what your definition of "Life" is. If your talking about bacteria, single celled organisms etc. it could be very widespread. But if your talking about complex lifeforms, like animals, its probably very rare.

We now know that without the Moon, the formation of complex lifeforms on earth would not have been possible. The only reason the Earth has the Moon is because of a collision with another planet early in its history. How many earth sized planets are really out there at the right distance from the right type of star, in a circular orbit, not hindered by other planets in the solar system? Then, how many of those planets had a colision early in its history that formed a moon with the right type of orbit, so it would not eventually colide with the planet it was orbiting?
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Old 01-26-2006, 09:05 PM   #15
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maybe that's where the edge is from
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