Quote:
Originally Posted by TheDoc
All the elements were already here for water, from day 1, and was producing water, steam, etc from day 1.
The moon size, its land mass is the size of Africa, it's not as big as some people think. It's age is about the same age as earth, so it's extremely safe to assume the moon was created by an impact or it is the object that hit us.
Then again, that far back we were getting hit with moon sized objects every day..
For all we know, the impact of the moon is what got it earth moving.
The ice is simple... it's in space.
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I really think you are very wrong there.
The Earth is a lot older than the moon. It just sort of "shares" ages as well because of the impact. The moon is mostly a piece of the Earth that got chipped of if I recall (remember no real sleep since Friday). The Earth had needed time to form from debris, gather enough mass to become molten. Then it needed time to cool down and form at least the crust if not the crust and some of the mantle. Sure it was being pelted by comets and debris but not other planets. Yes before the main planets that we know became stable. There were many others people guess. This was cleaned up by colliding. You can tell which planets ate the most other planets. The sun wouldnt of gobbled any though cause they would of been in rotation around it already.
Along came a planet (theory) that is named Theia. It was about the size of Mars. It hit part of the Earth due to crossing paths. It was not a direct collision or both would of vaporized, it hit either the top, side, or bottom. This caused both planets to melt near instantly, but a chunk was flung off that would become most of the moon. The Earth regathered most of the debris due to its size and gravity. It once again became a molten ball that needed time to cool. The rest of the debris and the chunk that broke off also formed together and created another molten moon.
The moon was of course a lot closer to the Earth than it is today. Then again it will be farther away tomorrow than it is today because the moon is moving out slowly. Early on the moon caused great havoc on Earth even up to the point of when it cooled and had oceans. It would actually cause the Earth to stretch out along with the moons rotation. Actual movement of the crust, eventually waves thousands of feet high, and another common theory is these tides caused life to form thanks to how much churning the water was doing at the time with assorted proteins in it. Eventually the moon moved far enough away that it no longer effects the Earth that much, just to the point you know today. The moon will never leave 100%. It just is moving out as the Earths rotation slows down. Nothing we will ever have to worry about though.