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Tracking 'Snowballs'

Tracking 'Snowballs' Click for larger image.
Background star = red
"Snowflecks" = Green, blue, light blue

Caption: This MRI movie shows the motion of some icy particles as seen from the spacecraft. A star moving through the background is marked with red and moves in a particular direction and speed whereas the icy particles move in random directions. The icy particles are marked in green, blue, and light blue.

Credit: NASA/JPL-Caltech/UMD

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