More power to anyone who can hitch himself to NASA's planetary program
for money to build toys. (Why does that sound familiar?) But
descending into a lava tube would not be a good way to investigate
Martian geology, because all you get to see is the inside of one lava
flow or so. If you want to see a cross section of Martain history, you
need somewhere there is stratigraphy, like a canyon or crater wall. --
Mixon
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Forgive your enemies . . . after they are hanged.
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