NASA explains Blue sand dune on the Red Planet
 

https://c.slashgear.com/wp-content/u...ne-680x383.jpgWhen you think of Mars you most certainly don?t think of any color other than red. It’s called the Red Planet for a reason. Recently the Mars Renaissance Orbiter spied something on the surface of Mars that isn?t red in images. The blue streak was discovered using the HiRISE camera that is described as the most powerful camera ever sent … Continue readinghttp://feeds.feedburner.com/~r/slashgear/~4/gdGIJxWjayg

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