The animation shows the optical depth tau -- a measure of how much light is being blocked by atmospheric dust as measured by the Mars Climate Sounder instrument onboard NASA's Mars Reconnaissance Orbiter.
NASA's Opportunity rover is marked with a RED DOT.
It then remains near the peak for three weeks.
Finally, the storm starts a multi-month decay back to regular weather.
Haz clic sobre una fecha y hora para ver el archivo tal como apareció en ese momento.