Professor Leigh Fletcher, a planetary scientist at the University of Leicester, said of the mission to The Guardian, “This is a neat attempt to rewind the clock via computer simulations, searching for an explanation for the distribution of scars across Ganymede.” If Ganymede was devastated in some other way beyond an asteroid, it is not something current science has an explanation for.
Fletcher went on to say, “Not only will it produce the best images of the surface fracturing ever obtained, but any remnants of this impact and reorientation, in Ganymede’s shape or gravity field, could be explored by Juice’s suite of instruments.” He furthermore made it clear that this would be the best opportunity to find evidence for the theory of Ganymede being struck by such a huge asteroid. “The Juice observations will provide excellent new constraints on this ‘impact and reorientation’ hypothesis.”
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