this post was submitted on 22 Jan 2025
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Curiosity Finds Evidence of Open Water on Ancient Mars (www.sciencealert.com)
submitted 1 week ago by [email protected] to c/[email protected]
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[โ€“] [email protected] 3 points 1 week ago (2 children)

So what are their theories on what happened to the water?

[โ€“] [email protected] 7 points 1 week ago

Mars doesn't have a global magnetic field. So Daddy Sun spanked Mars off its atmosphere. Low atmospheric pressure = low boiling point for water (-4.96ยฐC on the surface). Thus, all water got converted to water vapor, thus becoming part of the atmosphere, which was getting spanked... Sooo most water was lost. Most of the water remaining is in the poles as ice and maybe underground.

[โ€“] [email protected] 1 points 1 week ago

Atmosphere blew away and took it with it, I guess.