Comment by soco Comment by soco 2 days ago 1 reply Copy Link View on Hacker News But boiling off would have still kept that water in the atmosphere right?
Copy Link HPsquared 2 days ago Collapse Comment - Not if it's hot enough that the water molecules reach escape velocity in the exosphere! (As happens with helium today, helium atoms being lighter move faster at a given temperature than water molecules) Reply View | 0 replies
Not if it's hot enough that the water molecules reach escape velocity in the exosphere! (As happens with helium today, helium atoms being lighter move faster at a given temperature than water molecules)