Whoa check this thing out!  Wait a few seconds for it to make its way across and you will see it.

Here is some more background on how this was detected:

Spirit began seeing dust devil activity around the beginning of Mars’ spring season. Activity increased as spring continued, but fell off again for about two weeks during a dust storm. As the dust storm faded away, dust devil activity came back. In the mid-afternoons as the summer solstice approached, dust devils were a very common occurrence on the floor of Gusev crater. The early-spring dust devils tended to move southwest-to-northeast, across the dust devil streaks in Gusev seen from orbit. Increasingly as the season progresses, the dust devils are seen moving northwest-to-southeast, in the same direction as the streaks. Scientists are watching for the big dust devils that leave those streaks.

We hope you enjoyed this cool clip!  And I have a feeling there may be more news from NASA to even surpass this week’s epic announcements.

thanks to NASA for the great info