This map showing the location of some clay minerals in of a portion of the Mawrth Vallis region of Mars covers an area about 10 kilometers (6.2 mile) wide.
Latest News
NASA Spacecraft Shows Diverse, Wet Environments on Ancient Mars
07.16.08 -- Two studies based on data from NASA's Mars Reconnaissance Orbiter have revealed that the Red Planet once hosted vast lakes, flowing rivers and a variety of other wet environments that had the potential to support life.
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Latest Images
Clay Minerals in Mawrth Vallis Region of Mars
Water-Rich Terrain
This three-dimensional image of a trough in the Nili Fossae region of Mars shows a type of minerals called phyllosilicates concentrated on the slopes of mesas and along canyon walls.
Organic Cemetery
Mission News
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NASA Spacecraft Shows Diverse, Wet Environments on Ancient Mars
Two studies based on data from NASA's Mars Reconnaissance Orbiter have revealed that the Red Planet once hosted vast lakes and a variety of other wet environments that had the potential to support life.
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NASA Spacecraft Reveal Largest Crater in Solar System
New analysis of Mars' terrain using NASA spacecraft observations reveals what appears to be by far the largest impact crater ever found in the solar system.
Video Gallery
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Candidate for a Mars Landing
The High Resolution Imaging Science Experiment in orbit around Mars has examined many possible landing sites for the 2009 Mars Science Laboratory rover, including the Nili Fossae area seen here.
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Mars: A Feast for the Eyes
The Mars Reconnaissance Orbiter is providing unprecedented views as it studies the red planet.
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 "Candidate for a 2009 Mars Landing")
 "Mars: A Feast for the Eyes")
NASA Podcasts
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Mars Reconnaissance Orbiter: In the Groove Around the Red Planet
NASA's Mars Reconnaissance Orbiter successfully placed itself into orbit at Mars on Mar. 10, 2006.
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