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Response to bloomington-lib (Reply #19)

Tue Sep 30, 2014, 06:17 AM

23. It has a very thin atmosphere, but it has some very fine-grained, lightweight dust

that is periodically kicked up by even the thinnest of winds. Every few years there's a global dust storm that covers most of the planet. If you were there, you wouldn't see or feel any of the dust because it's so fine, but the sky would just become very dark. Some surface images of a local dust storm:

[img][img]

And there are ice caps at the poles, but they're very sharply delineated when not obscured by dust:

[img][/img]

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