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To: Phil V.
Hmm.. Wonder..
If Mars had liquid surface water at some point, what caused it to cease being liquid and retreat to ice caps?
5 posted on 01/23/2004 4:28:19 PM PST by Darksheare (This is a normal tagline, there is nothing to fear.. feaR... FeAr...FEAR.)
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To: Darksheare
The atmosphere is nearly gone, too. Also half the crust has disappeared. Probably a huge asteroid impact, same thing that happened to earth and created the moon while excavating the Pacific Ocean basin and the same thing that will happen eventually to earth again and end this picnic.
8 posted on 01/23/2004 7:08:33 PM PST by RightWhale (Repeal the Law of the Excluded Middle)
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To: Darksheare
If Mars had liquid surface water at some point, what caused it to cease being liquid and retreat to ice caps?

Low temperatures come to mind.

11 posted on 01/23/2004 9:25:17 PM PST by Doctor Stochastic (Vegetabilisch = chaotisch is der Charakter der Modernen. - Friedrich Schlegel)
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