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	Search Image Releases  Popular Images:  + Raw Images  + Artist's Concept  + Mars Wallpapers  Image Archives:  + January 2007  + December 2006  + November 2006  + October 2006  + September 2006  + August 2006  + July 2006  + June 2006  + May 2006  + April 2006  + March 2006  + February 2006  + January 2006  + December 2005  + November 2005  + October 2005  + September 2005  + August 2005  + July 2005  + June 2005  + May 2005  + April 2005  + March 2005  + February 2005  + January 2005  + December 2004  + November 2004  + October 2004  + September 2004  + August 2004  + July 2004  + June 2004  + May 2004  + April 2004  + March 2004  + February 2004  + January 2004  + 2003  + 2002  Site Tools:  + Adobe Reader  + Apple QuickTime  + Macromedia Flash  + RealPlayer Water-Signature Mineral Found by Spirit 12/13/04 This spectrum, taken by the Mars Exploration Rover Spirit's Moessbauer spectrometer, shows the presence of an iron-bearing mineral called goethite in a rock called "Clovis" in the "Columbia Hills" of Mars. Goethite contains water in the form of hydroxyl as a part of its structure. By identifying this mineral, the examination of Clovis produced strong evidence for past water activity in the area that Spirit is exploring. Image Credit: NASA/JPL/University of Mainz + Medium resolution version of this image + High resolution version of this image + Print this image and caption
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