The Surface Stereo Imager on NASA's Phoenix Mars Lander took this anaglyph on Oct. 21, 2008; the trench on the upper left is called 'Upper Cupboard.' 3-D glasses are necessary to view this image.

The Surface Stereo Imager on NASA's Phoenix Mars Lander took this anaglyph on Oct. 21, 2008, during the 145th Martian day, or sol. Phoenix landed on Mars' northern plains on May 25, 2008.

The trench on the upper left, called "Upper Cupboard," is about 60 centimeters (24 inches) long and 3 centimeters (1 inch) deep. The trench in the middle,called "Ice Man," is about 30 centimeters (12 inches) long and 3 centimeters (1 inch) deep. The trench on the right, called "La Mancha," is about 31 centimeters (12 inches) and 5 centimeters (2 inches) deep.

The Phoenix mission is led by the University of Arizona, Tucson, on behalf of NASA. Project management of the mission is by NASA's Jet Propulsion Laboratory, Pasadena, Calif. Spacecraft development is by Lockheed Martin Space Systems, Denver.

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