Friday, April 27, 2012

Spiral Lava Flows on Mars

This Mars Reconnaissance Orbiter photo shows spiral patterns in rocks near the Martian equator. The region is known as Athabasca Valles, and it has long been disputed whether its strange rock patterns were created by lava flows or glaciers. These spirals resemble lava features on earth, which is a strong argument for the lava flow theory.

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