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View Full Version : Cassini Scientists Make New Ring Discoveries



Fraser
2005-Sep-06, 07:57 PM
SUMMARY: Cassini scientists have announced a host of new findings about Saturn's rings, including some new knotted structures in the planet's F ring. One of the major discoveries is that parts of Saturn's D ring (its innermost ring) have relocated and dimmed. In fact scientists have been able to track fairly significant changes between when Voyager first visited Saturn 25 years ago. The delicate G ring seems to contain faint arcs, which might be hiding additional planets. And most surprisingly, knots in the planet's F ring seem to be arranged like a coiled spring winding around the planet.

View full article (http://www.universetoday.com/am/publish/cassini_reveals_new_rings_nature.html)
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dennishc
2005-Sep-06, 08:15 PM
Again, structures in the Universe appear that do NOT allow easy explanation using only gravity. I suspect, that electromagnetic forces are at work making these spiral patterns in the F ring. People forget that EM forces are 10E 42 times as strong as gravity. Also, space makes an excellent conductor.

iron4
2005-Sep-06, 09:00 PM
The discovery of a ring arc is cool. Its finding is maybe not surprising, given that ring arcs were known before in Neptune, and probably are common structures in other ringed planets of other planetary systems