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November 2007 Top Stories


NASA Cassini Significant Events  for 10/24/07 - 10/30/07 »» NASA Cassini Significant Events for 10/24/07 - 10/30/07

[Friday, November 2, 2007] The most recent spacecraft telemetry was acquired on Tuesday, Oct. 30, 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 puzzle of the variable radio period of Saturn »» The puzzle of the variable radio period of Saturn

[Tuesday, November 13, 2007] The auroral radio emission of giant planets are usually used to estimate their rate of internal rotation. But in the case of Saturn, these emissions present important variations at the month scale, which cannot be due to the rotation.

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Cassini Significant Events  for 10/31/07 - 11/06/07 »» Cassini Significant Events for 10/31/07 - 11/06/07

[Thursday, November 15, 2007] The most recent spacecraft telemetry was acquired on Tuesday, November 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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Cassini Significant Events for 11/07/07 - 11/13/07 »» Cassini Significant Events for 11/07/07 - 11/13/07

[Tuesday, November 20, 2007] The most recent spacecraft telemetry was acquired on Tuesday, Nov. 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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Bright 'Dust' »» Bright 'Dust'

[Wednesday, November 28, 2007] The fine, dust-sized particles of ice in the F ring and Encke Gap ringlets appear relatively bright, with the rings positioned almost directly between the Cassini spacecraft and the Sun.

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Rhea from 326,629 kilometers »» Rhea from 326,629 kilometers

[Wednesday, November 28, 2007] This image was taken on November 16, 2007 and received on Earth November 16, 2007. The camera was pointing toward Rhea at approximately 326,629 kilometers away.

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Enceladus in Hiding »» Enceladus in Hiding

[Wednesday, November 28, 2007] From a low angle above Saturn's rings, the Cassini spacecraft¿s view of an icy moon is partly obscured. The view looks toward Enceladus across the unilluminated side of the rings from less than a degree above the ringplane.

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Monitoring the Maelstrom »» Monitoring the Maelstrom

[Wednesday, November 28, 2007] Clouds and vortices churn in this beautiful, close-up view of Saturn. This image is part of a series of important Cassini observations designed to provide information about winds and convection on Saturn.

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Filtering the Sun »» Filtering the Sun

[Wednesday, November 28, 2007] Janus coasts past as the Cassini spacecraft takes in a view of the unilluminated side of the rings. Bright regions within the rings appear so because they allow scattered sunlight to filter through.

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Saturnian Citizens »» Saturnian Citizens

[Wednesday, November 28, 2007] Cassini spies two icy denizens of the Saturn System as they hurtle past. The view captures Mimas (397 kilometers, or 247 miles across) at bottom, with Epimetheus (116 kilometers, or 72 miles across) about 48,000 kilometers (30,000 miles) farther beyond.

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Collapsed Rings »» Collapsed Rings

[Wednesday, November 28, 2007] A lone moon coasts along in this view, which was taken from less than a degree below Saturn's sunlit ringplane. The rings are squashed into a narrow band from this viewing angle, foreshortening all of their radial features.

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Dark Belt of Tethys »» Dark Belt of Tethys

[Wednesday, November 28, 2007] Around the equator on its leading side, Tethys wears a band of slightly darker surface material. Cassini imaging scientists suspect that the darkened region may represent an area of less contaminated ice.

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Scratches on Dione »» Scratches on Dione

[Wednesday, November 28, 2007] Bright, wispy fractures streak across Dione's trailing side. Following the Voyager flybys of the early 1980s, scientists considered the possibility that the streaks were bright material extruded by cryovolcanism.

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 A Fresh Face »» A Fresh Face

[Wednesday, November 28, 2007] The leading hemisphere of Enceladus displays a remarkably fresh-looking surface in this recent Cassini view. At this resolution, only a few craters can be made out in this wrinkled region of the geologically active moon's surface.

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Facing Dione »» Facing Dione

[Wednesday, November 28, 2007] Canyons slink southward on Dione, while bright-walled craters gleam in the sun. The Cassini spacecraft imaged this same region from a more southerly viewpoint during an approach earlier this year.

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Dark Lowlands on Titan »» Dark Lowlands on Titan

[Wednesday, November 28, 2007] Through the obscuring haze come glimpses of Titan's dune seas. The dark, equatorial region known as Shangri-la is visible. Radar images show that Shangri-la and other dark regions around the moon's middle are filled with vast stretches of parallel dunes

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Solar System in Miniature »» Solar System in Miniature

[Wednesday, November 28, 2007] Saturn's icy satellites wheel about the colorful giant planet, while the rings shine dimly in scattered sunlight. The Ringed Planet is, in many ways, a laboratory for investigating the history of our solar system and how planets form around other stars.

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Grading NASA's Solar System Exploration Program: A Midterm Review, Committee on Assessing the Solar System Exploration Program, NRC »» Grading NASA's Solar System Exploration Program: A Midterm Review, Committee on Assessing the Solar System Exploration Program, NRC

[Thursday, November 29, 2007] For each individual recommendation in these two reports the committee assessed NASA's progress and assigned an academic-style grade, explained the rationale for the grade and trend, and offered recommendations for improvement.

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Organic 'building blocks' discovered in Titan's atmosphere »» Organic 'building blocks' discovered in Titan's atmosphere

[Thursday, November 29, 2007] Saturn's moon Titan is the second largest in the solar system -- and the only one with a dense atmosphere. The atmosphere, nitrogen and methane, resembles that of the early... Click here for more information.

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Cassini Significant Events  for 11/14/07 - 11/27/07 »» Cassini Significant Events for 11/14/07 - 11/27/07

[Friday, November 30, 2007] The most recent spacecraft telemetry was acquired on Tuesday, Nov. 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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