“Snow” on Comet Churyumov-Gerasimenko

From You Tube via Astronomy Picture of the Day for 15/3/20. A scene constructed from 33 consecutive still images captured by the Rosetta spacecraft‘s camera over 25 minutes.

It’s not snow but dust and ice particles drifting near the comet’s surface. The brighter specks are most likely cosmic rays though. From the camera’s perspective background stars are moving from top to bottom.

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