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Cassini Finds Possible Origin of One of Saturn's Rings |
| Section: NATURAL SCIENCE / UNLOCKING THE COSMOS |
| Author: National Air and Space Administration |
| Publication: The world & I online |
| Issue Date: 9/1/2007 |
| Size: 685 Words, 4,202 Characters |
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Cassini scientists may have identified the source of one of Saturn's more mysterious rings. Saturn's G ring likely is produced by relatively large, icy particles that reside within a bright arc on the ring's inner edge. The particles are confined within the arc by gravitational effects from Saturn's moon Mimas. Micrometeoroids collide with the particles, releasing smaller, dust-sized particles that brighten the arc. The plasma in the giant planet's magnetic field sweeps through this arc continually, dragging out the fin...
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...es the Cassini-Huygens mission for NASA's Science Mission Directorate, Washington. The Cassini orbiter and its two onboard cameras were designed, developed and assembled at the laboratory. The imaging team is based at the Space Science Institute, Boulder, Colo. The magnetospheric imaging instrument team is based at Johns Hopkins University, Laurel, Md.
Copyright © NASA 2007. (www.nasa.gov).
(525 of 4,202 characters)
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