Image Credit: NASA/JPL/ASU

Context image credit: NASA/JPL/MOLA
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In the evening of January 3, 2003 the MER lander Spirit came to a safe landing right in the middle of Gusev Crater (shown by red arrow). This is an area riddled with dust devil tracks in the summertime (note the many dark streaks). With some luck those dust devils have scoured the surface clean of dust, exposing the underlying rocks which hold the secrets of Mars' past.