[Thursday, December 6, 2007] NASA's Cassini Mission to Saturn has some young new participants. A 10th-grade student in Delaware, a high school senior in California, and an 8th-grade American student in France are the winners of this year's Cassini Scientist-for-a-Day contest.

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[Friday, December 7, 2007] These high resolution images of Pan and Atlas reveal distinctive "flying saucer" shapes created by prominent equatorial ridges not seen on the other small moons of Saturn.

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[Friday, December 7, 2007] Giant vortices swirl in the dim northern latitudes of Saturn. The high northern latitudes are slowly coming to light as Saturn heads into northern hemisphere spring.

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[Saturday, December 8, 2007] The most recent spacecraft telemetry was acquired on Tuesday, December 4, from the Madrid tracking complex. The Cassini spacecraft is in an excellent state of health and all subsystems are operating normally.

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[Wednesday, December 12, 2007] Hyperion is completely covered with large pits from which much of its material has been blasted by impacts, never to return. The moon's surface gravity is so low that crater-ejected material often escapes Hyperion entirely.

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[Wednesday, December 12, 2007] Scientists have gotten their best "look" ever at the invisible ring of energetic ions trapped in Saturn's giant magnetic field, finding that it is asymmetric and dynamic, unlike similar rings that appear around Earth.

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[Wednesday, December 12, 2007] Somewhere deep below Saturn's cloud tops, the planet rotates at a constant speed. Determining this interior period of rotation has proven extremely complicated. Now, with new Cassini results, scientists have taken an important step forward.

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[Wednesday, December 12, 2007] New observations by NASA's Cassini spacecraft indicate the rings of Saturn, once thought to have formed during the age of the dinosaurs, instead may have been created roughly 4.5 billion years ago, when the solar system was still under construction.

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[Friday, December 14, 2007] This is an artist concept of a close-up view of Saturn's ring particles. The planet Saturn is seen in the background (yellow and brown). The particles (blue) are composed mostly of ice, but are not uniform.

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[Friday, December 14, 2007] This is an artist concept and movie of the view from Cassini during the star occultation that detected "Mittens," the small object to the right of the star.

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[Friday, December 14, 2007] Dark ring shadows adorn the northern hemisphere of Saturn. The shadows have loosened their grip on the north compared to when Cassini arrived in 2004, and presently continue to slide farther south.

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[Friday, December 14, 2007] The most recent spacecraft telemetry was acquired on Tuesday, Dec. 11, from the Madrid tracking complex. The Cassini spacecraft is in an excellent state of health and all subsystems are operating normally.

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[Monday, December 17, 2007] Enceladus is colder than ice, but data gathered by Cassini has detected a hot spot that could mean there is life in the old moon after all. In fact, for researchers of the outer planets, Enceladus is so intellectually hot, it's smokin'

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[Tuesday, December 18, 2007] Saturn's moons Tethys and Dione are flinging great streams of particles into space, according to data from the NASA/ESA/ASI Cassini mission to Saturn. The discovery suggests the possibility of some sort of geological activity, perhaps even volcanic, on th

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[Thursday, December 27, 2007] Rhea is frozen in this Cassini portrait, captured just before it glided in front of Saturn's northern hemisphere. The wispy streaks on Rhea's trailing side are partly visible in the west.

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[Thursday, December 27, 2007] This is a computer simulation of the final stage of the growth of a "clump" in Saturn's rings.

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[Thursday, December 27, 2007] This image was taken on December 21, 2007 and received on Earth December 22, 2007. The camera was pointing toward Titan at approximately 238,337 kilometers away.

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[Thursday, December 27, 2007] This image was taken on December 21, 2007 and received on Earth December 22, 2007. The camera was pointing toward Titan at approximately 243,362 kilometers away.

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[Thursday, December 27, 2007] This image was taken on December 20, 2007 and received on Earth December 22, 2007. The camera was pointing toward Titan at approximately 187,541 kilometers away.

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[Thursday, December 27, 2007] This image was taken on December 19, 2007 and received on Earth December 20, 2007. The camera was pointing toward Dione at approximately 241,261 kilometers away.

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[Thursday, December 27, 2007] This image was taken on December 18, 2007 and received on Earth December 19, 2007. The camera was pointing toward Saturn at approximately 632,008 kilometers away.

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[Thursday, December 27, 2007] This image was taken on December 17, 2007 and received on Earth December 18, 2007. The camera was pointing toward Rhea at approximately 538,077 kilometers away.

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[Thursday, December 27, 2007] A transitional region in Saturn's atmosphere features long, linear cloud shapes, flanked to the north and south by more turbulent swirls. At top center in this view swirls a dark vortex ringed by bright clouds.

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[Thursday, December 27, 2007] The Cassini spacecraft watches a thin, bright sliver emerge from the hazy limb of Saturn. In one minute, the sliver ballooned into the full disk of Mimas (397 kilometers, or 247 miles across), which coasted silently into the black sky.

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[Thursday, December 27, 2007] Just before Rhea slipped behind Saturn, the Cassini spacecraft captured the moon in its disappearing act.

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[Thursday, December 27, 2007] The low illumination angle near the terminator makes visible the steep topography of craters on Rhea's battered surface.

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[Thursday, December 27, 2007] A small moon travels its circuit just outside the main rings of Saturn. Epimetheus (116 kilometers, 72 miles across) is absolutely dwarfed by the giant planet.

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[Thursday, December 27, 2007] From a low angle above Saturn's rings, the Cassini spacecraft's view of an icy moon is partly obscured.

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[Thursday, December 27, 2007] A section of Saturn's perturbed F ring displays kinks in its bright, double-stranded core. At left, edge waves in the Encke Gap, caused by the presence of Pan, can be seen, along with two faint ringlets.

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[Thursday, December 27, 2007] The Cassini spacecraft catches a glimpse of the bright fractures that adorn the trailing side of icy Dione.

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[Thursday, December 27, 2007] Saturn in the Cassini era has proved to be an unexpectedly colorful place, compared to the browns and golds imaged by the two Voyager spacecraft.

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[Thursday, December 27, 2007] This colorful view, taken from edge-on with the ringplane, contains four of Saturn's attendant moons. Tethys is seen against the black sky to the left of the gas giant's limb.

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[Monday, December 31, 2007] The most recent spacecraft telemetry was acquired on Tuesday, Dec. 25, from the Goldstone tracking complex. The Cassini spacecraft is in an excellent state of health and all subsystems are operating normally.

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