Europa, one of Jupiter's icy moons, may have something similar to subduction zones. This implies Europa may be the only planetary body other than Earth to have plate tectonics. This is important because material from the surface of Europa could act as food for life that may exist in Europa's ocean.

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Europa, one of Jupiter's icy moons, may have something similar to subduction zones. This implies Europa may be the only planetary body other than Earth to have plate tectonics. This is important because material from the surface of Europa could act as food for life that may exist in Europa's ocean.