Forum Index > Full Moon Saloon > Canyoneering in the greatest canyon in the solar system
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gb
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PostFri Jan 08, 2021 7:53 am 
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https://www.livescience.com/mars-deepest-canyon-in-solar-system.html?utm_term=WildWeird&emci=d55c496b-9950-eb11-a607-00155d43c992&emdi=8ef6d826-2751-eb11-a607-00155d43c992&ceid=2028176
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Cyclopath
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PostFri Jan 08, 2021 12:11 pm 
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I saw this this morning, it's fascinating.  To think of an ancient Mars with rivers ... it's the stuff science fiction is born from.

I wonder how they know, or can even be sure enough to put that in a headline.  We still don't know that much about the outer solar system.  We aren't even sure how many planets there are.
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Forum Index > Full Moon Saloon > Canyoneering in the greatest canyon in the solar system
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