The Mars rovers Spirit and Opportunity are equipped with left and right lenses in the Front and Rear Hazard Avoidance cameras, the Navigation camera and the Panorama camera. Pairs of pictures taken from slightly different positions can be combined to produce 3D pictures known as anaglyphs, just like our human stereographic vision. All you need is a pair of red-glue 3D glasses. Instructions for making your own are on-line at stereo.gsfc.nasa.gov/classroom/glasses.shtml.

These instructions describe how to use Adobe Photoshop make your own 3D pictures of the surface of Mars, using actual images collected by Spirit and Opportunity. You can also make 3D pictures of your own subject by taking pair of pictures with a digital camera.

These instructions are modified from instructions written by Zahreh Gorjian from the Multimission Image Processing Laboratory at the Jet Propulsion Lab (JPL) that operates the Mars rovers. To learn more about 3D anaglyphs, see marsrovers.jpl.nasa.gov/spotlight/3d01.html or www.rainbowsymphony.com/3d-glasses-links.html.

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