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Where does a planets water come from?
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Hydrogen is too light of an element to be held in the earth's atmosphere by gravity. So once it escapes from the ground, water, or whatever other molecules you can think of it usually just rises up until it is lost into space forever and ever... and ever....
So where do you guys think all our water came from? My thought would be that it might have to be created in its molecular form in a star or something before our planet was created because if hydrogen existed in its pure form ever on this planet it would have just evaporated into space. Apparently the planet used to be really hot 4 billion years ago which would make H evaporate even easyer.
Any geology guys here that know if the oceans were created on earth or else where?
You know if only we could find a catalyst or bacteria to break up the CO2 molecules on venus and then find out how to put water on the planet it would be a much better planet to colonize than Mars considering it already has a full atmosphere containing oxegen.
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"Government is not reason; it is not eloquent; it is force. Like fire, it is a dangerous servant and a fearful master." -George Washington
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Originally Posted by el chupacabra
You know if only we could find a catalyst or bacteria to break up the CO2 molecules on venus and then find out how to put water on the planet it would be a much better planet to colonize than Mars considering it already has a full atmosphere containing oxegen.
Except for that pesky 850 degree Fahrenheit surface temp, constant lightning, Sulphuric Acid atmosphere…
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"Altruism is killing America. We who want to save America must repudiate this killer, root and branch. We must understand and explain to others that the acceptance of altruism necessitates the violation of individual rights... and that the arguments for altruism are baseless..."
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IIRC, the competing theories are that either water here formed chemically, or that we got it thanks to impacts of asteroids, and perhaps a few comets, with water in them in some form.
The thing you may be overlooking is that it's not necessary that hydrogen be present in a pure form. It can be bound in some other compound which breaks down, letting the hydrogen recombine with oxygen.
As for terraforming Venus, I suppose it could be done, but it'd be a hell of a project. You'd probably need to build a sunshade as well to reduce temperatures while adding water and changing the composition of the atmosphere and surface.
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--
This and all my other posts are hereby in the public domain. I am a lawyer. But I'm not your lawyer, and this isn't legal advice.
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Originally Posted by smacintush
Except for that pesky 850 degree Fahrenheit surface temp, constant lightning, Sulphuric Acid atmosphere…
Hey! Those are features!
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2008 iMac 3.06 Ghz, 2GB Memory, GeForce 8800, 500GB HD, SuperDrive
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Originally Posted by smacintush
Except for that pesky 850 degree Fahrenheit surface temp, constant lightning, Sulphuric Acid atmosphere…
as far as I know that temperature is just a greenhouse effect caused by the CO2 in the atmosphere.
As for terraforming Venus, I suppose it could be done, but it'd be a hell of a project. You'd probably need to build a sunshade as well to reduce temperatures while adding water and changing the composition of the atmosphere and surface.
It would be a hell of a project but hey we're pooring tons of money into manned mission to mars in the future, as well as possible space station on mars or the moon. Mars can never be transformed into a habital planet. So if were going to go all out might as well go with a planet that has an atmosphere and gravity similiar to earth.
My proposal would be to start by somehow getting CO2 to O2 converting bacteria under the Venus surface where it is cooler, possibly in a water tank or something. Unfortunatly this takes a billion years naturally but we can invent something. When the atmosphere cools down the sulferic acid will rain down to the ground whre it belongs then we can guide a commet to the surface to create oceans, inless there is enough in the atmosphere.
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Originally Posted by el chupacabra
as far as I know that temperature is just a greenhouse effect caused by the CO2 in the atmosphere.
yeah, and it is a lot closer to the sun…
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"Altruism is killing America. We who want to save America must repudiate this killer, root and branch. We must understand and explain to others that the acceptance of altruism necessitates the violation of individual rights... and that the arguments for altruism are baseless..."
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Seriously (and in all shortness, t.i.r.e.d.), of the competing theories I tend to agree to the meteor one. As strange and unimaginable it does sound - when life can develop somewhere, anything can happen.
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<ahem>
The moon is not only far smaller than the Earth, it's also at a much further distance from it.
This has been your non sequitur for the day.
Thank you.
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Originally Posted by el chupacabra
Mars can never be transformed into a habital planet. So if were going to go all out might as well go with a planet that has an atmosphere and gravity similiar to earth.
Mars has water, nitrogen, oxygen and carbon. All needed to sustain life.
My proposal would be to start by somehow getting CO2 to O2 converting bacteria under the Venus surface where it is cooler, possibly in a water tank or something. Unfortunatly this takes a billion years naturally but we can invent something. When the atmosphere cools down the sulferic acid will rain down to the ground whre it belongs then we can guide a commet to the surface to create oceans, inless there is enough in the atmosphere.
The big problem with venus is it would have to be cooled BEFORE we could do anything inside the atmosphere at all. How are we supposed to work in an environment hot enough to melt lead? Plus 1 day on Venus = 243 earth days versus Mars' 24 hour days. Mars is considered to be a much better choice for terraforming.
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"Altruism is killing America. We who want to save America must repudiate this killer, root and branch. We must understand and explain to others that the acceptance of altruism necessitates the violation of individual rights... and that the arguments for altruism are baseless..."
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