New Horizons Jupiter Encounter |
New Horizons Jupiter Encounter |
Guest_AlexBlackwell_* |
Jan 10 2007, 09:47 PM
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Mar 11 2007, 06:17 AM
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Merciless Robot Group: Admin Posts: 8784 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
Perhaps not surprising, though. Jupiter not only has a sharper gravity gradient than Saturn, it also has a much higher indigneous radiation environment, a greater overall impact rate due to its proximity to the Asteroid Belt, and four massive inner moons...all of these are erosive factors that Saturn lacks.
All that being said, why are Uranus' and Neptune's rings much more like those of Jupiter than Saturn? I'm thinking the answer lies in extremely energetic disturbances like whatever tipped Uranus and the capture of Triton. Both of these events would have presumably destroyed most of any pre-existing extensive ring system...and, in fact, Jupiter may have been slammed around even more, but with few visible effects in the current era due to its enormous mass. -------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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