What does the surface of Saturn's ice-spewing moon Enceladus look like? To help
find out, the robotic Cassini
spacecraft orbiting Saturn was sent soaring past the cryovolcanic moon and even
right through one of Enceladus' ice plumes. Cassini
closed to about 52 kilometers during this close encounter.
The above unprocessed image was taken
looking down from the north, from about 30,000 kilometers away. Visible are at least
two types of terrain. The first type of terrain has more craters than occur near
Enceladus' South
Pole. The other type of terrain has few craters but many ridges and grooves that
may have been created by surface-shifting tectonic activity.
Exogeologists are currently poring over this and other Cassini images to better understand the moon's patch-work surface, its
unusual ice-geysers, and its potential to support
life. Cassini is scheduled to fly
by Enceladus at least nine more times, including an even closer pass of just
25 kilometers.
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