Ancient lava flows could explain pie-shaped landform on Mars
Pasadena, Calif. (UPI) Dec 8, 2014 - If it was a real pie, it'd be the largest in the universe. But alas, it's composed of cold iron-rich rock - not flour, butter, fruit and sugar. The 1.2-mile wide circle of rumpled Martian crust was likely created by lava flows thousands of years ago. Captured by the HiRISE camera - one of six instruments on NASA's Mars Reconnaissance Orbiter - the strange landform is located in the A ... more
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