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The Winter 2010 issue of The Earth Scientist includes a variety of educational resources, ranging from astronomy to glaciers. Check out the other publications and classroom materials in our online store.
This is an image of the surface of Europa.
Click on image for full size
NASA

Europa Ice Flows

This is an example of terrain of Europa which has been flooded by fresh water which subsequently re-froze on the surface. The edges of the flow are "lobate" meaning rounded like a puddle of water.

This is evidence of icy-volcanism. The water of Europa may have flowed out of the ground the way lava flows out of a volcano on Earth.

Clearly, as shown in the image, the flowing water covered over some ridges on the surface which were already in place.


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Flowing Lava

Lava can move in broad flat lava flows, or it can move through constrictive channels or tubes. Lava flows have a large surface area so they tend to cool quickly and flow slowly. The fastest unconstricted...more

Ice Rafting on Europa?

The surface of Europa shows many signs of that there may be a submerged ocean. For example, this picture shows what look like icebergs that may have broken off from a parent block of ice, floated a bit,...more

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Callisto

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