Mosaic of the Valles Marineris hemisphere of Mars projected into a perspective similar to what one would see from a spacecraft. The mosaic is composed of 102 Viking Orbiter images of Mars.

The center of the scene (lat -8, long 78) shows the entire Valles Marineris canyon system, over 2000 kilometers long and up to 8 kilometers deep, extending form Noctis Labyrinthus, the arcuate system of graben to the west, to the chaotic terrain to the east. Many huge ancient river channels begin from the chaotic terrain from north-central canyons and run north. The three Tharsis volcanoes (dark red spots), each about 25 kilometers high, are visible to the west. South of Valles Marineris is very ancient terrain covered by many impact craters.

The distance is 2,500 kilometers from the surface of the planet, with the scale being 0.6km/pixel.

Image credit: NASA/JPL-Caltech


  • Title: Mars - Valles Marineris hemisphere
  • Creator: NASA/JPL-Caltech
  • Date Created: 1980

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