Athabasca Valles And Mars’ Mystery
The origin of the Athabasca Valles, located near the Martian equator, has been a mystery. The generally flat terrain is made of large plates that have fractured and drifted. Some scientists thought these features were created by ice rafts in Mars’ wetter past, while others suggested they were part of an old lava flow.

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Created: Sep 26, 2013

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