The Bruce Murray Space Image Library
Dust storm at the Viking 1 lander site, 1977
Filed under pretty pictures, amateur image processing, NASA Mars missions before 1996, Mars
A comparison of two Viking 1 color images taken on sols 282 and 324 shows how a Martian dust storm severely limited the amount of sunlight reaching the ground. "Tau," a measure of the sky's opacity, was very high, between 5 and 6.
NASA / JPL-Caltech / color composite by Olivier de Goursac
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