Agreed there is water at the poles, but Valles Marineris is 'low hanging fruit' compared.
The central spot where the thunderbolt touched down is relatively flat and that makes for a good landing site, but to the SoutWest there are steep canyons and [most likely] lava tubes to offer radiation protection.
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.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
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.Three conspiracy theorists walk into a bar --You can't say that is a coincidence.
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