paigetheoracle Posted December 1, 2007 Report Posted December 1, 2007 Watching a program about weather on the Earth, when viewed from space, I noticed eddies in clouds being mentioned as signs of mountains protruding into the atmosphere. Looking at Jupiters many surface rings I wondered if that was the reason for them too and that maybe the red spot was actually a volcano sticking into space and not a storm? (I know it's supposed to be a gaseous giant but maybe there is something semi-solid there?). Forgive my ignorance if probes have proved it is all gas but speaking as a layman I just made this connection and wondered if it had any validity? Quote
freeztar Posted December 1, 2007 Report Posted December 1, 2007 According to this wiki, the origin of planetary rings is not known with certainty. Though, here is an explanation of Jupiter's rings from the same wiki: Several of Jupiter's small innermost moons, namely Metis and Adrastea, are within Jupiter's ring system and are also within Jupiter's Roche limit. It is possible that these rings are composed of material that is being pulled off of these two bodies by Jupiter's tidal forces, possibly facilitated by impacts of ring material on their surfaces. A moon inside the Roche limit is held together only by its mechanical strength rather than by its gravity, and so loose material on its surface would simply "fall off" to join the rings. For a good visual of this, check out the illustrations from this wiki on Roche limit. Quote
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