13 March 1998
Vol 279, Issue 5357

About The Cover

Mars Orbiter Camera (MOC) image of a 10 km by 12 km area of Coprates Catena (14.7°S, 55.8oW), a ridge with a flat upper surface in the center of Coprates Chasma, which is part of the 6000-km-long Valles Marineris. Rock layers are visible just below the ridge. The gray scale (4.8 m/pixel) MOC image was combined with a Viking Orbiter color view of the same area. The faults of a graben offset beds on the slope to the left. See the Reports on Mars Global Surveyor results beginning on p. 1671 and the News story on 1634. [MOC image 8003]