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March 2007 Top Stories


NASA's Cassini Returns Never Before Seen Views of the Ringed Planet »» NASA's Cassini Returns Never Before Seen Views of the Ringed Planet

[Thursday, March 1, 2007] Over the last several months, the Cassini spacecraft has climbed to higher and higher inclinations, providing its cameras with glimpses of the planet and rings that have scientists gushing.

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Five New Names Approved for Titan Surface Features »» Five New Names Approved for Titan Surface Features

[Saturday, March 3, 2007] The following five names have been approved for use on Titan: Ara Fluctus, Leilah Fluctus, Rohe Fluctus, Winia Fluctus, and Polelya Macula.

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Cassini Significant Events for 02/14/07 - 02/20/07 »» Cassini Significant Events for 02/14/07 - 02/20/07

[Saturday, March 3, 2007] The most recent spacecraft telemetry was acquired on Tuesday, February 20, 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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The Quiet Side of Dione »» The Quiet Side of Dione

[Saturday, March 3, 2007] Dione's leading hemisphere appears relatively smooth and placid here, compared to the fractured landscape on its trailing hemisphere. Lit terrain seen here is on the leading hemisphere of Dione (1,126 kilometers, or 700 miles across). North is up.

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Titan Features and Interactions »» Titan Features and Interactions

[Saturday, March 3, 2007] This radar image, obtained by Cassini's radar instrument during a near-polar flyby on Feb. 22, 2007, shows dunes surrounding a bright feature on Saturn's moon Titan.

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Atlas Heads Toward the Shadow »» Atlas Heads Toward the Shadow

[Saturday, March 3, 2007] This strikingly crisp view shows Atlas heading into Saturn's shadow at upper left. The moon's basic, elongated shape is easy to detect here.

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Odysseus Out of Shadow »» Odysseus Out of Shadow

[Saturday, March 3, 2007] The Cassini spacecraft stares directly into the great Odysseus impact basin on Tethys. Peaks near the crater's center cast long shadows toward the east. The elevated eastern rim of the crater catches sunlight, despite being well beyond the terminator.

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Tourniquet Shadows »» Tourniquet Shadows

[Saturday, March 3, 2007] Dark and sharply defined ring shadows appear to constrict the flow of color from Saturn's warmly hued south to the bluish northern latitudes.

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Symmetry in Shadow »» Symmetry in Shadow

[Saturday, March 3, 2007] Magnificent blue and gold Saturn floats obliquely as one of its gravity-bound companions, Dione, hangs in the distance. The darkened rings seem to nearly touch their shadowy reverse images on the planet below.

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Magnificent Vista »» Magnificent Vista

[Saturday, March 3, 2007] Cassini coasts beneath giant Saturn, staring upward at its gleaming crescent and icy rings. A great bull's-eye pattern is centered on the south pole, where a vast, hurricane-like storm spins.

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The Great Crossing »» The Great Crossing

[Saturday, March 3, 2007] This life-like movie sequence captures Saturn's rings during a ring plane crossing--which Cassini makes twice per orbit--from the spacecraft's point of view. The movie begins with a view of the sunlit side of the rings.

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Ring World »» Ring World

[Saturday, March 3, 2007] Our robotic emissary, flying high above Saturn, captured this view of an alien copper-colored ring world. The overexposed planet has deliberately been removed to show the unlit rings alone, seen from an elevation of 60 degrees.

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The Lore of Saturn »» The Lore of Saturn

[Saturday, March 3, 2007] The great planet Saturn reveals mysteries more profound, and stories more grand, than those occasioned by its ancient mythological namesake.

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Pastel Planet »» Pastel Planet

[Saturday, March 3, 2007] Cassini looks upward at, and through, the sunlit side of the rings from about 19 degrees below the ring plane. The small moon Janus (181 kilometers, or 113 miles across) can be spotted off the planet's western limb (edge) near the image bottom.

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Huygens landing site to be named after Hubert Curien »» Huygens landing site to be named after Hubert Curien

[Monday, March 5, 2007] ESA, the international Committee for Space Research (COSPAR) and NASA have decided to honour Professor Hubert Curien's contribution to European space by naming the Huygens landing site on Saturn's largest moon, Titan, after him.

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Cassini Significant Events for 02/28/07 - 03/06/07 »» Cassini Significant Events for 02/28/07 - 03/06/07

[Friday, March 9, 2007] The most recent spacecraft telemetry was acquired on Tuesday, March 6, 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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A Hot Start Might Explain Geysers on Enceladus »» A Hot Start Might Explain Geysers on Enceladus

[Monday, March 12, 2007] A hot start billions of years ago might have set into motion the forces that power geysers on Saturn's moon Enceladus. The scalding conditions are also favorable for the formation of simple hydrocarbon chains, basic building blocks of life.

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Murky World »» Murky World

[Monday, March 12, 2007] Straining to make out the surface of Titan through its murky atmosphere, the Cassini spacecraft's wide angle camera manages to exploit one of the infrared spectral windows where the particulate smog is transparent enough for a peek.

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Seeing the Storm »» Seeing the Storm

[Monday, March 12, 2007] This beautiful look at Saturn's south polar atmosphere shows the hurricane-like polar storm swirling there. Sunlight highlights its high cloud walls, especially around the 10 o'clock position.

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Bent Spoke »» Bent Spoke

[Monday, March 12, 2007] A bright spoke extends across the unilluminated side of Saturn's B ring about the same distance as that from London to Cairo. The background ring material displays some azimuthal (i.e., left to right) asymmetry.

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Cassini Spacecraft Images Seas on Saturn's Moon Titan »» Cassini Spacecraft Images Seas on Saturn's Moon Titan

[Tuesday, March 13, 2007] Cassini has found evidence for seas, likely filled with liquid methane or ethane, on Titan. One such feature is larger than any of the Great Lakes of North America and is about the same size as several seas on Earth.

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Cassini Significant Events 03/07/07 - 03/13/07 »» Cassini Significant Events 03/07/07 - 03/13/07

[Monday, March 19, 2007] The most recent spacecraft telemetry was acquired on Tuesday, March 13, 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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Cassini Image: Hello Again, Jupiter! »» Cassini Image: Hello Again, Jupiter!

[Monday, March 19, 2007] The brick red, white and brown cloud bands of Jupiter are seen here from Saturn orbit. The Cassini spacecraft's powerful imaging cameras were specially designed to photograph nearby bodies (cosmically speaking) in the Saturn system.

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Enceladus Geysers Mask the Length of Saturn's Day »» Enceladus Geysers Mask the Length of Saturn's Day

[Friday, March 23, 2007] Enceladus is weighing down Saturn's magnetic field so much that the field is rotating slower than the planet. This phenomenon makes it nearly impossible to measure the length of the Saturn day using techniques that work at the other giant planets.

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Cassini Significant Events for 03/18/07 03/20/07 »» Cassini Significant Events for 03/18/07 03/20/07

[Friday, March 23, 2007] The most recent spacecraft telemetry was acquired on Tuesday, March 20, 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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NASA Cassini Image: Dionean Linea »» NASA Cassini Image: Dionean Linea

[Monday, March 26, 2007] Bright icy fractures, or linea, cover the trailing hemisphere of Saturn's moon, Dione. The Cassini spacecraft imaged the fractured terrain at high resolution in October 2005.

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The Center of Things »» The Center of Things

[Monday, March 26, 2007] This dramatic close-up of Saturn's south pole shows the hurricane-like vortex that resides there. The entire polar region is dotted with bright clouds, including one that appears to be inside the central ring of the polar storm.

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Prometheus interacts With Saturn's Rings »» Prometheus interacts With Saturn's Rings

[Monday, March 26, 2007] This image was taken on March 11, 2007 and received on Earth March 13, 2007. The camera was pointing toward Prometheus at approximately 1,617,601 kilometers away.

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Rivers of Cloud »» Rivers of Cloud

[Monday, March 26, 2007] Rippling with detail, the southern hemisphere of Saturn comes to life in this view from the Cassini spacecraft. Long, flowing streamers and bands of great contrast soften toward the pole, where a great hurricane-like storm resides.

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Helene and Mimas »» Helene and Mimas

[Monday, March 26, 2007] Two moons of Saturn rendezvous above the Cassini. Mimas is seen here just before gliding in front of Helene, which lays 192,000 kilometers (119,000 miles) in the distance beyond the larger moon.

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Rings in Orbit »» Rings in Orbit

[Monday, March 26, 2007] High above the streamers of cloud in Saturn's atmosphere, the planet's ring system begins with faint, thin rings populated with dust-sized ice particles. Here, features in the D ring are visible, beginning at about 67,000 km from the planet's center.

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Dual Core? »» Dual Core?

[Monday, March 26, 2007] Bright strands in Saturn's ever changing F ring emerge from the planet's shadow. The F ring usually has a single bright core, about 50 kilometers across, but the section of the ring seen here appears to have a second bright strand.

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Cloaking Iapetus »» Cloaking Iapetus

[Monday, March 26, 2007] Darkness sweeps over Iapetus as the Cassini spacecraft watches the shadow of Saturn's B ring engulf the dichotomous moon. The image at left shows the unshaded moon, while at right, Iapetus sits in the shadow of the densest of Saturn's rings.

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The Familiar Division »» The Familiar Division

[Monday, March 26, 2007] The Cassini Division between the A and B rings, visible through modest telescopes from Earth, actually contains five dim bands of ring material, here seen near the left side of the image between two small dark gaps.

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Cassini Images Bizarre Hexagon on Saturn »» Cassini Images Bizarre Hexagon on Saturn

[Tuesday, March 27, 2007] An odd, six-sided, honeycomb-shaped feature circling the entire north pole of Saturn has captured the interest of scientists with NASA's Cassini mission.

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Cassini Image: Unusual Hyperion »» Cassini Image: Unusual Hyperion

[Wednesday, March 28, 2007] Chaotically tumbling and seriously eroded by impacts, Hyperion is one of Saturn's more unusual satellites. Scientists believe the moon to be quite porous, with a great deal of its volume being empty space.

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Rhea, Orb of Ice »» Rhea, Orb of Ice

[Wednesday, March 28, 2007] A serene orb of ice is set against the gentle pastel clouds of giant Saturn. Rhea transits the face of the gas giant, whose darkened rings and their planet-hugging shadows appear near upper right.

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Shadowcaster »» Shadowcaster

[Wednesday, March 28, 2007] Cassini takes in a sweeping view of Saturn's south polar region as the planet's shadow masks the rings and bright, icy Mimas looks on from left.

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Cassini Significant Events for 03/21/07 - 03/27/07 »» Cassini Significant Events for 03/21/07 - 03/27/07

[Saturday, March 31, 2007] The most recent spacecraft telemetry was acquired on Tuesday, March 27, 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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