I've always wondered what percentage of water molecules on the earth have always been water molecules, i.e. since they became H20 how many have been separated by chemical processes and later recombined back into water. How you estimate that is beyond me.
Despite the media fanfare (<a href="http://www.pressreader.com/bookmark/7WFY0PDVE4Z/TextView" rel="nofollow">http://www.pressreader.com/bookmark/7WFY0PDVE4Z/TextView</a>), I have some reservations giving credibility to a single model-generated study. Not to say it’s groundless, but I wouldn’t jump to conclusions just yet.
Interesting article.
Now that I think of it, how comes that in all the (known) universe we have ice or ice blocks (such as comets)? Where from does it originates?
This is not surprising at all. What would the alternative be? The protoplantary disk that became the Solar System contained free hydrogen and free oxygen but no compound thereof? That's sounds unlikely.<p>Water forms naturally given enough hydrogen and oxygen at a wide range of temperatures. Since hydrogen is everywhere, and since main-sequence stars produce tons of oxygen via fusion, there's probably a lot of water floating around in the universe. When a nebula collapses into a protoplanetary disk, the increased density makes it even more likely that gas molecules will meet one another and form compounds.
I came to say that this changes everything since I thought the light came first. Still seemed relevant. (not trolling)<p><a href="http://en.wikipedia.org/wiki/Let_there_be_light" rel="nofollow">http://en.wikipedia.org/wiki/Let_there_be_light</a><p>In the beginning God created the heaven and the earth.
And the earth was without form, and void; and darkness was upon the face of the deep. And the Spirit of God moved upon the face of the waters.
And God said, Let there be light: and there was light.
And God saw the light, and it was good; and God divided the light from the darkness.
Here is a fun fact: only elements up to iron are produced as a result of fission. The rest, including elements essential to human life, elements in your body, are only produced through fusion. Fusion is known to only occur in stars. You are stars.
As someone interested in science, I was really excited to read the headline and see the HN discussion. As a Christian I was surprised and kind of creeped out to see the "so much for the Bible" talk. I feel like a Japanese person must feel when an American tries to get them to laugh at jokes. But I guess in a way it's nice though that nobody ever brings up the sort of beyond-Religion-101 topics that actually challenge my faith.<p>Edit: Why all the downvotes? I'm saying I'd prefer we let science be science, without the didactic religion talk, pro or con.