[zeestephen]

Question to anyone...

What was the astro-mechanism that created so much water?

I presume star death is the mechanism that creates elemental Oxygen.

What is the process that combines two Hydrogen atoms with Oxygen?

[LibWhacker]

Oxygen is created in stars and dispersed in supernova explosions. It then mixes with hydrogen in clouds of dust and gas out in space and forms water. (Had to look it up :)

[jpsb]

Oxygen is the third most common element in the universe. So there is a lot of oxygen out there. Fusion in stars creates oxygen. Creating oxygen happens shortly before a star goes supernova.

A simple chemical reaction is all that is needed to combine hydrogen and oxygen into water.