An enlargement of the High Resolution Stereo Camera (HRSC) image strip from Mars Express orbit 14,150 projected onto a global view of Mars that was acquired by the Viking spacecraft. The HRSC image covers an unusually wide area, because it was being used to calibrate the instrument rather than image the planetary surface. Credit: NASA/Viking Project.

An enlargement of the High Resolution Stereo Camera (HRSC) image strip from Mars Express orbit 14,150 projected onto a global view of Mars that was acquired by the Viking spacecraft. The HRSC image covers an unusually wide area, because it was being used to calibrate the instrument rather than image the planetary surface. Credit: NASA/Viking Project.
An enlargement of the High Resolution Stereo Camera (HRSC) image strip from Mars Express orbit 14,150 projected onto a global view of Mars that was acquired by the Viking spacecraft. The HRSC image covers an unusually wide area, because it was being used to calibrate the instrument rather than image the planetary surface. Credit: NASA/Viking Project.
Credit:

NASA/Viking Project.

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