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Streaks and Lava Flows

June 5, 2004
NASA's Mars Global Surveyor shows alternating light and dark wind streaks superimposed over a rugged lava flow surface on the west flank of the volcano, Ascraeus Mons on Mars.

5 June 2004
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) picture shows alternating light and dark wind streaks superimposed over a rugged lava flow surface on the west flank of the volcano, Ascraeus Mons. A chain of pits in the upper half of the image mark the location of a collapsed lava tube. The image is located near 11.6°N, 105.5°W, and covers an area about 3 km (1.9 mi) across. The scene is illuminated by sunlight from the lower left.

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