ancient water on Mars

[johnkeeb]

https://phys.org/news/2021-09-mars-surface-fast-furious-craters.html

This one talks about erosion as a result of water overflowing craters.

https://phys.org/news/2020-08-sustained-planetwide-storms-lakes-rivers.html

This one says the moisture arrived as rain and snow, filling craters (and probably aquifers, though not directly discussed) giving a time period of 3.5 to 4 billion years ago. Article discusses the logic disconnects between having water then not having water, offering no reasonable solution(s) to the puzzle.

Seems like this is a bit too far back in time to have aliens extract Mars’ water while exploring Earth, which had plenty of its own water that far back.

The researchers did calculations to see what kind of precipitation event (yes, a single event!) would result in that much water. They don’t mention Tiamat….the only likely candidate for that sort of event.

Thanks!

John Keebaugh