07 Nov '13 15:12>
How did water come to the earth, or did it form on earth?
I've read a couple of guesses, what say you?
Kelly
I've read a couple of guesses, what say you?
Kelly
Originally posted by KellyJaythey are not "guesses". For example, we know that much of the water come to Earth via icy comets colliding with the early-Earth. There are several other known sources of this water. For example, we know that magma has surprisingly huge amounts of hidden water dissolved in it and this is released as steam from volcanic eruptions which, of course, eventually condenses and comes liquid water in the oceans. The only real scientific uncertainty here is here is about how much each of these known sources contributed to the water in the oceans which is, of course, a pretty academic trivial uncertainty.
How did water come to the earth, or did it form on earth?
I've read a couple of guesses, what say you?
Kelly
Originally posted by sonhouseYou know what I believe, but when I thought about it, I couldn't recall
I presume you will endow yourself with religious superiority by announcing it came at the bible creation, right?
Originally posted by KellyJay
You know what I believe, but when I thought about it, I couldn't recall
what everyone who didn't hold my beliefs thought, so I asked. Not
going to attempt to make a point one way or the other, just wanted to
know, nothing more.
Kelly
just wanted to know, nothing more
Originally posted by humyIt is basically what I read other places, thank you for sharing!just wanted to know, nothing more
and, now from my post, you should know the answer is probably mainly from icy comets along with a few other sources such as volcanism etc. Is this what you wanted to know or do you want to know more? Do you want more details? if so;
Apart from icy comets and volcanism, the only other sources I can think o ...[text shortened]... tiny contribution at most to the water on Earth compered to that from icy comets and volcanism.
Originally posted by KellyJayThink about what we have discovered about some of the moons of Jupiter and Saturn, where some of them, although something like the size of the moon, sports perhaps 60 MILE deep oceans. Europa is one of them. More water on that moon than all of Earth.
It is basically what I read other places, thank you for sharing!
Kelly
Originally posted by sonhouseWhy then did you poo poo my idea that the moon was cooled by water?
Think about what we have discovered about some of the moons of Jupiter and Saturn, where some of them, although something like the size of the moon, sports perhaps 60 MILE deep oceans. Europa is one of them. More water on that moon than all of Earth.
The hint here is they are closer to the asteroid belt and just co-incidentally have much more water than ...[text shortened]... arge stars, which is what the cloud in this photo is:
http://apod.nasa.gov/apod/ap130714.html
Originally posted by RJHindsNot enough water to cool an entire moon. It was molten clear through. If there was enough water to cool the moon, the Earth, Venus, Mercury, and Mars would have bee totally inundated by water. Besides, there is practically no atmosphere on the Moon and water would never have lived in a liquid form, it would have evaporated. In order to cool the moon with water, the entire solar system would had to have been one big water ball a thousand times bigger than the sun.
Why then did you poo poo my idea that the moon was cooled by water?
The Instructor
Originally posted by sonhouseI deduce from your post what he said. But we already have explained to him in another thread a long time ago now the basic physics of liquid water and how it cannot exist on the surface of the moon because a liquid cannot exist in a vacuum of space and the moon doesn't have enough gravity to have an atmosphere -and yet he is back saying the same debunked nonsense!? this just shows the extent of both his unwillingness to listen and learn something new from others that know better (too opinionated ) and his idiocy.
Not enough water to cool an entire moon. It was molten clear through. If there was enough water to cool the moon, the Earth, Venus, Mercury, and Mars would have bee totally inundated by water. Besides, there is practically no atmosphere on the Moon and water would never have lived in a liquid form, it would have evaporated. In order to cool the moon with wa ...[text shortened]... s wide. All the water in the solar system MIGHT make a water world the size of Earth. Try again.
Originally posted by sonhouseThank you again
Think about what we have discovered about some of the moons of Jupiter and Saturn, where some of them, although something like the size of the moon, sports perhaps 60 MILE deep oceans. Europa is one of them. More water on that moon than all of Earth.
The hint here is they are closer to the asteroid belt and just co-incidentally have much more water than ...[text shortened]... arge stars, which is what the cloud in this photo is:
http://apod.nasa.gov/apod/ap130714.html
Originally posted by KellyJayThank you for presenting 'our' POV or thank you for showing you how stars are made and where water comes from? I can only assume you don't believe a word I said but judge it more along the lines of 'how quint, too bad he doesn't know the REAL way everything came about'. Is that about it?
Thank you again
Kelly