Sunday, December 9, 2007

Mineral discovery explains Mars' landscape

A Queen's University researcher has discovered a mineral that could explain the mountainous landscape of Mars, and have implications for NASA's next mission to the planet. "Satellites orbiting Mars show us images of canyons and gullies that appear to have been created by a flood or rapid out-washing," says Ron Peterson, Queen's geologist. "Exploration rovers, currently moving about on the planet's surface, also show us that there is no visible water on the surface of Mars, but that there was in the past." Martian terrain may have been created in a similar fashion. Dr. Peterson suggests that many years ago, water interacted with rocks on the surface of the planet to create an acidic cocktail, which created layers of material. When the surface layer melted, it created the topography that exploration rovers show us today.

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