Tag Archives: Viking Orbiter

HiRISE: Valleys on Darwin Crater rim and wall

Posted on March 29, 2017 by rburnham

Valleys on east rim and wall of Darwin Crater imaged by Viking — Viking Image 571B01. Beautiful Mars series.

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Slope streaks not becoming more common; survive for decades

Posted on March 21, 2012 by rburnham

Slope streaks are dark lines that run down dusty slopes on Mars; scientists explain them as dust avalanches touched off by rockfalls or some similar trigger. (Slope streaks differ in nature and cause from a different kind of streak, dubbed … Continue reading →

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