Scientists Spot Tsunamis in Saturn's Rings
-   +   A-   A+     12/10/2010
Enormous mile-high tsunamis of icy particles are moving around one of Saturn's rings, researchers say.
The waves are created by one of Saturn's moons, Titan, whose gravitational pull yanks the particles of Saturn's inner C ring upward, creating huge peaks and gaps.
"It's a little bit like a tsunami propagating away from an earthquake fault," Phillip Nicholson of Cornell University said, according to National Geographic.

Enormous mile-high tsunamis of icy particles are moving around one of Saturn's rings, researchers say.

The waves are created by one of Saturn's moons, Titan, whose gravitational pull yanks the particles of Saturn's inner C ring upward, creating huge peaks and gaps.

"It's a little bit like a tsunami propagating away from an earthquake fault," Phillip Nicholson of Cornell University said,
according to National Geographic.

a newly discovered crack in one of Saturn's rings
Cornell / JPL / NASA
This graphic shows an angled view of a newly discovered "crack" in one of Saturn's rings, known as the C ring. This view shows the 3-D quality of the crack associated with a wavelike feature that was discovered earlier by NASA's Voyager 1 spacecraft.
Scientists have long been puzzled by the gaps that can be seen in Saturn's C ring. Some appear to be occupied by small moons that move through the ring and disrupt it.

Others seem to have no connection to a moon. What's more, the gaps seemed to change size, and even vanish periodically.

"It's become an increasing problem, as to what determines where these gaps are in the rings and what keeps the gaps open," Nicholson said,
according to Wired.

The breakthrough came when observers began to consider the ring in three dimensions. Then they realized that there were peaks in the C ring.

Seen from different angles, these peaks could distort or even completely obscure the gaps, explaining the gaps' tendency to change shape and vanish from view.

"This and some other work suggests there might not be one explanation for gaps, there may be three or four or even more different dynamical circumstances that can give rise to these gaps," Nicholson said, according to National Geographic.
 
It's not clear where Saturn's rings came from. One theory is that they are the remains of one or more moons destroyed by the impact from comets or another moon, according to Universe Today.

The C ring is the second innermost of the planet's seven rings.

By studying the planet's rings, scientists can gain insight into other stellar disks. Some stars are surrounded by disks that may eventually form planets.

"Saturn really is a wonderful, natural lab for understanding how the protoplanetary nebula might have evolved," said Linda Spilker, deputy project scientist at the Jet Propulsion Laboratory,
according to Universe Today.


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