The mission was designed in view of the current status of planetary protection. We have to follow the rules of what we call planetary protection. So, while at Europa, we cannot land; we cannot impact on. Ganymede is not the same category of bodies in terms of astrobiology and planetary protection. If we find some hint of life — and I doubt we will — then we might have to rethink the approach. But in any case, we have already shown that we can land on Ganymede or crash on Ganymede without contaminating the ocean. That was already studied, documented and published. Because the ocean is believed to be relatively deep inside the moon, if we impact with JUICE on the surface, we won't contaminate it, because it is maybe 100 kilometers [60 miles] underneath the surface.