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A view of Saturn's F ring from Cassini. Something, possibly a collision between a moonlet and the ring's core, has caused a large disturbance.  (Source: NASA, Jet Propulsion Laboratory)
The interaction of small moons within and around Saturn may give some insight into solar system creation.

The Cassini space probe has been a busybody for the last four years. Swooping around Saturn, it's discovered many new features as well as given some insight into some of the more interesting ones previously discovered. Data collected over the last few years has now given scientists some insight into another one of Saturn's remarkable features, its F ring.

The F ring is notable because of its state of constant change. The ring undergoes reconstruction so frequently that astronomers hope to learn something of how the solar system might have been created from it.

“Saturn’s F ring is perhaps the most unusual and dynamic ring in the solar system; it has multiple structures with features changing on a variety of timescales from hours to years,” explains Professor Carl Murray of the Queen Mary University of London who led the analytical team on the F ring data.

Some of the features they noticed in Cassinis images are being referred to as “jets” and “fans.” Both are thought to be caused by objects colliding with the F ring's core. The “jets” appear to be caused by objects of a large diameter, such as the ~5km S/2004 S 6, which was discovered by Cassini in 2004. “Fans” on the other hand are thought to be caused by objects of less than one kilometer in diameter.

The moonlets colliding with other pieces of the F ring cause the objects to scatter in unique ways due to the influence of their gravity as well as outside influences. The moon Prometheus also effects the F ring, acting as sort of shepherd to keep things from getting too unruly.

Scientists are extremely pleased with the results of Cassini's image gathering, as it helps give them a bit more insight into the formation of the entire solar system. “This incredibly successful mission has taught us a great deal about the solar system and the processes at work in it,” said Professor Keith Mason, CEO of the Science and Technology Facilities Council.

“Understanding how small objects move within the dust rings around Saturn gives an insight into the processes that drive planetary formation, where the proto-planet collects material in its orbit through a dust plane and carves out similar grooves and tracks.”



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What the?
By jahinoz on 6/10/2008 7:24:59 AM , Rating: 5
quote:
Cassini Shows Interesting Interactions in Saturn's F Ring


I seriously think one of my mates has a dirty movie with the same title.




RE: What the?
By FaceMaster on 6/10/2008 9:10:55 AM , Rating: 1
That title is but a cheap way of getting people to view the article. Shame on you, Levi.


RE: What the?
By omnicronx on 6/10/2008 9:47:01 AM , Rating: 3
I love how there are at least 20 posts a week about the DT articles titles and page views. Don't you people have something better to do? Like whine about Microsoft, Dell, AMD, or Apple? Oh wait, we already have 500 people a week doing that..


RE: What the?
By FaceMaster on 6/10/2008 11:41:47 AM , Rating: 5
...That pales in comparison to the number of people criticizing other member's posts each week.


RE: What the?
By omnicronx on 6/10/2008 1:00:17 PM , Rating: 2
The difference here being, I actually enjoy reading the articles, and usually only post if I have something productive to say. I just can't stand the countless posts of people whining about how DT writers conduct their business.


RE: What the?
By Adonlude on 6/10/2008 12:25:41 PM , Rating: 2
No, I think you are confusing this with Uranus's O-ring.


RE: What the?
By root mean sq on 6/10/2008 2:29:32 PM , Rating: 2
they both exist and are really good movies.

i couldn't take all those long shots at Uranus tho, too gross.


Kinks in Saturn's Rings
By KromStock on 6/10/2008 9:28:42 AM , Rating: 3
Nov 12, 2007
Kinks in Saturn's Rings

Braids and twists in the rings of Saturn suggest activity in addition to gravitational attraction. Could electricity be one of the formative agents?

http://www.thunderbolts.info/tpod/2007/arch07/0711...

"Do astronomers really prefer to elaborate obsolete theoretical assumptions rather than make new discoveries?" Halton Arp in Seeing Red.




RE: Kinks in Saturn's Rings
By cheetah2k on 6/10/2008 9:41:45 PM , Rating: 2
If you look closely at that picture, it looks like one slender hand holding another, as if the rings are holding on to each other for dear life...


ring in tone
By Seemonkeyscanfly on 6/10/2008 10:10:56 AM , Rating: 3
"The moonlets colliding with other pieces of the F ring cause the objects to scatter in unique ways due to the influence of their gravity as well as outside influences."

They also noticed with the increase and decrease of gravity influences, the F ring can be changed to a E ring or G ring. The boys hope to have Led Zeppelin's "Stairway to Heave" mastered by the end of the month.




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