[anobjectivist]

I think the existence of water, or at least ice, on Europa is obvious, but the real question is how deep do you have to go to get liquid? It would be great and cute if the ice were only on the order of hundreds of meters thick at some places, but I've seen some estimates that indicate miles or kilometers.

In that case, even in the existence of an ocean on europa would not matter. There is no way to transport a craft with enough energy and equipment to tunnel through kilometers of ice to find ocean. At least not for centuries if we ever get the infrastructure up in space.

[green team 1999]

the cracks in the ice indicate movement and i don`t think the ice is that deep,and we can send some missions using radar and other sensors like we did on mars.