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hello I'm petacchi Williams welcome to

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NASA's Jet Propulsion Laboratory in

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Pasadena California I'm a maneuver

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analysts on the Cassini navigation team

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here's how you can think of my job I'm

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the person in the car with the map gave

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you the driver directions and estimating

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how much gas is left in the tank on a

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road trip the navigation team plays a

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similar role for the Cassini spacecraft

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as it flies around Saturn Cassini

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scientists are trying to figure out how

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Saturn's famous rings reform the G ring

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is one of the outer rings near the

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heavily cratered moon- Cassini

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scientists say the G ring was likely

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produced by large icy particles within a

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bright arc on an inner edge the large

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icy particles are struck by tiny

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meteoroids to create smaller finer

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particles swept out by Saturn's plasma

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drifting from the arc filling in the

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ring Cassini flew by Saturn's moon Titan

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on July 19th one of the objectives was

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to determine the nature and surface

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composition of the location just west of

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the Huygens landing site scientists also

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checked out seasonal changes on the moon

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on august 31st will be returning for

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another flyby of Titan it will be an

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opportunity for us to get images of

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Titan's surface near the Huygens landing

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site on sep tember 10th will make our

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closest flyby ever of one of Saturn's

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most intriguing moons Iapetus half of it

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looks as dark as asphalt while the other

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half appears bright as snow will be

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taking high-resolution observations so

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scientists can study the boundary

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between the light and dark regions

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they'll also check out the mountainous

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Ridge discovered by Cassini in december

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two thousand four all pretty exciting

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stuff I'm Petacchi Williams from NASA's

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Jet Propulsion Laboratory with your