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The science team for Rosetta’s navigation camera have released to the public 1297 images taken of Comet 67P/C-G as the spacecraft began its approach on August 1, 2014 through September 23, 2014.
The release also included a video assembled from these images, showing the comet nucleus as Rosetta approached from August 1 to August 22. I have embedded that video below. As you watch, you will think, “How does this thing stay together?” Though the video shows the nucleus’ rotation at a highly accelerated rate, which exaggerates the stresses on the object, the question is a good one, and in fact, is actually predicting the future. Eventually, this nucleus will break up.