Patterns in Mars crater floors give picture of drying lakes

Wednesday, September 16, 2009 - 06:56 in Astronomy & Space

Networks of giant polygonal troughs etched across crater basins on Mars have been identified as desiccation cracks caused by evaporating lakes, providing further evidence of a warmer, wetter martian past.  The findings were presented today at the European Planetary Science Congress by PhD student Mr M Ramy El Maarry of the Max Planck Institute for Solar System Research.

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