This is an image of the surface of Europa.
Click on image for full size
NASA
Europa Ice Flows
This is an example of the surface of Europa. The surface may be flooded by fresh water from underground, which freezes when it touches the surface.
The edges of the flow are rounded, like a puddle of water which froze.
The water of Europa may have flowed out of the ground the way lava flows out of a volcano on Earth.
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