An inch of water, every 20,000 yrs, at current era rates But what I was really looking for and could not find was a reference/links to mention of the earth being constantly bombarded with water molecules.
The discovery was made somewhat accidentally, in that the observations came from satellites designed for other causes (was it studying earth's albedo? ...I cannot clearly recall). As I do recall, it was the gear on the second satellite which confirmed the finding. The original signals from the first were thought to be instrument noise of some sort. With the second, they were able to isolate the wavelength of that part of the returns spectrum, confirming "water molecules".
So, is there a direct connection between this high-altitude, coming from-from-space molecular water bombardment, and the "house size" carbon shelled snowballs of Franks's observations/and explanation, I wonder?
A rolling stone might not gather much moss, but this planet we are on seems to be collecting more than just the constant left-overs/physical residue of sunlight.
We're moving along at a pretty good clip, too, as we move along with our nearby star, shadowing it's movements even as we circle it, every uh, year or so...
I'm somewhat amazed we don't run into more rocks than we seem to have, recently.
All in the Lord's own time, I suppose. Prophetic warnings of large stones falling from the sky really are not that far-fetched. All that would need occur is for our planet to enter a zone more littered with rocky debris than we typically do, while following along with our star's direction, and velocity.