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A comment on A one-second video taken by the Rosetta probe on the surface of a comet. Parent comment

Re:A one-second video taken by the Rosetta probe on the surf... by z3t4 on Wednesday April 25, 2018 @02:59PM (#16924872)
I guess relative to the stars in the image, using parallax.
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Re:A one-second video taken by the Rosetta probe on the surf... by ars on Wednesday April 25, 2018 @04:38PM (#16925861)
No, relative to the stars it's going a LOT faster than that!

Most likely it's relative to the sun.

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