These Deep Trenches on Mars Aren’t What We Thought They Were [cheapestps3controller269.blogspot.com]

These Deep Trenches on Mars Aren’t What We Thought They Were [cheapestps3controller269.blogspot.com]

The surface of Mars is lined with mysterious deep-carved trenches. A long-standing theory suggesting that the were left long ago by flowing rivers was just debunked. So where did these trenches come from?

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http://gizmodo.com/these-deep-trenches-on-mars-arent-what-we-thought-they-1784527089 These Deep Trenches on Mars Aren’t What We Thought They Were

[cheapestps3controller269.blogspot.com] These Deep Trenches on Mars Aren’t What We Thought They Were