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February 2005 Top Stories


Saturn's Bull's-Eye Marks its Hot Spot »» Saturn's Bull's-Eye Marks its Hot Spot

[Thursday, February 3, 2005] In the most precise reading of Saturn's temperatures ever taken from Earth, a new set of infrared images suggests a warm "polar vortex" at Saturn's south pole - the first warm polar cap ever to be discovered in the solar syste

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NASA Cassini Image: Rhea in Natural Color »» NASA Cassini Image: Rhea in Natural Color

[Friday, February 4, 2005] The trailing hemisphere of Saturn's moon Rhea seen here in natural color, displays bright, wispy terrain that is similar in appearance to that of Dione, another one of Saturn's moon.

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Cassini Significant Events for 01/27/05 - 02/02/05 »» Cassini Significant Events for 01/27/05 - 02/02/05

[Saturday, February 5, 2005] The most recent spacecraft telemetry was acquired today from the Goldstone tracking station. The Cassini spacecraft is in an excellent state of health and is operating normally.

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Mimas Blues »» Mimas Blues

[Tuesday, February 8, 2005] Mimas drifts along in its orbit against the azure backdrop of Saturn's northern latitudes in this true color view. The long, dark lines on the atmosphere are shadows cast by the planet's rings.

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Saturn's Blue Cranium »» Saturn's Blue Cranium

[Tuesday, February 8, 2005] Saturn's northern hemisphere is presently a serene blue, more befitting of Uranus or Neptune, as seen in this natural color image from Cassini.

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First measurement of Titan's winds from Huygens »» First measurement of Titan's winds from Huygens

[Wednesday, February 9, 2005] Using a global network of radio telescopes, scientists have measured the speed of the winds faced by Huygens during its descent through the atmosphere of Titan.

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Titan-3 Flyby Description »» Titan-3 Flyby Description

[Wednesday, February 9, 2005] The third targeted flyby of Titan occurs on Tuesday, February 15, 2005 at 6:58 SCET (Ground: 8:06 UTC - 12:06 AM Pacific time). Cassini's closest approach to Saturn's largest satellite is at an altitude of 1577 km (980 miles) above the surface

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Cassini Image: Enceladus »» Cassini Image: Enceladus

[Wednesday, February 9, 2005] This Cassini image of Enceladus shows a region containing bizarre, wrinkled terrain. Enceladus is covered with bright water ice. The part of its surface visible here appears to be largely free of craters -- indicating that it is geologically young.

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Cassini Significant Events for 02/03/05 - 02/09/05 »» Cassini Significant Events for 02/03/05 - 02/09/05

[Saturday, February 12, 2005] The most recent spacecraft telemetry was acquired today from the Goldstone tracking station. The Cassini spacecraft is in an excellent state of health and is operating normally.

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Saturn's Panoramic Rings »» Saturn's Panoramic Rings

[Monday, February 14, 2005] Saturn's most prominent feature, its dazzling ring system, takes center stage in this stunning natural color mosaic which reveals the color and diversity present in this wonder of the solar system.

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Scientists Release Audio Sent by Huygens During Titan Descent »» Scientists Release Audio Sent by Huygens During Titan Descent

[Monday, February 14, 2005] Scientists have produced an audio soundbite that captures what the Cassini orbiter heard from Huygens as the probe descended on Titan on Jan. 14.

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NASA Cassini Image: Vortex Flow »» NASA Cassini Image: Vortex Flow

[Tuesday, February 15, 2005] The study of a planetary atmosphere is quite different from studying solid surfaces, since atmospheres are dynamic and ever-changing. In this image, the large-scale curvilinear pattern suggests flow around the vortices in the center of the image.

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Titan Flyby Number Four »» Titan Flyby Number Four

[Tuesday, February 15, 2005] This map of the surface of Saturn's moon Titan illustrates the regions that will be imaged by Cassini during the spacecraft's fourth (and third very close) flyby of the smoggy moon on Feb. 15, 2005.

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Enceladus First Flyby »» Enceladus First Flyby

[Tuesday, February 15, 2005] This map of the surface of Saturn's moon Enceladus illustrates the regions that will be imaged by Cassini during the spacecraft's first very close flyby of the moon on Feb. 17, 2005.

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Saturn's aurora defy scientists' expectations »» Saturn's aurora defy scientists' expectations

[Thursday, February 17, 2005] The dancing light of the auroras on Saturn behaves in ways different from how scientists have thought possible for the last 25 years.

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Cassini's Radar Spots Giant Crater on Titan »» Cassini's Radar Spots Giant Crater on Titan

[Thursday, February 17, 2005] A giant impact crater the size of Iowa was spotted on Saturn's moon Titan by NASA's Cassini radar instrument during Tuesday's Titan flyby.

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Cassini Significant Events for 02/10/05 - 02/16/05 »» Cassini Significant Events for 02/10/05 - 02/16/05

[Friday, February 18, 2005] NASA Cassini Significant Events for 02/10/05 - 02/16/05

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Cassini's Cameras View Titan in a Different Light »» Cassini's Cameras View Titan in a Different Light

[Friday, February 18, 2005] Cassini's third close approach to Titan on Tuesday, February 15 yielded intriguing new views of the planet-sized moon, as the spacecraft's powerful cameras looked at and through the orange murk of its thick atmosphere.

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Cassini Close-up Image of Enceladus »» Cassini Close-up Image of Enceladus

[Saturday, February 19, 2005] This image was taken on February 17, 2005 and received on Earth February 17, 2005. The camera was pointing toward Enceladus, and the image was taken using the CL1 and CL2 filters.

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Titan's Atmosphere May Have Come from Ammonia, Huygens Data Say »» Titan's Atmosphere May Have Come from Ammonia, Huygens Data Say

[Saturday, February 19, 2005] Cassini-Huygens supplied new evidence about why Titan has an atmosphere, making it unique among all solar system moons, a University of Arizona planetary scientist says.

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String of Moons? »» String of Moons?

[Sunday, February 20, 2005] Moons visible in this image: Mimas (398 kilometers, or 247 miles across) at right, Pandora (84 kilometers, or 52 miles across) near center and Janus (181 kilometers, or 113 miles across) in the lower left corner.

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Dark Terrain on Titan »» Dark Terrain on Titan

[Sunday, February 20, 2005] Although most of the region observed by the Cassini radar instrument in the February close flyby of Titan is very different from the regions imaged in October, the area shown in this image appears quite similar.

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Huygens Landing Site Similarities »» Huygens Landing Site Similarities

[Sunday, February 20, 2005] This area imaged by the Cassini radar system during the spacecraft's third close flyby of Titan on Feb. 15, 2005, is just to the east of the Circus Maximus impact feature

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Titan's Night Side »» Titan's Night Side

[Sunday, February 20, 2005] The image shows Titan's thick atmosphere illuminated from behind by sunlight. A detached haze layer is visible over the entire globe.

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Hazy Days on Titan »» Hazy Days on Titan

[Sunday, February 20, 2005] Saturn's large, smog-enshrouded moon Titan greets Cassini in full color as the spacecraft makes its third close pass on Feb. 15, 2005.

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Close Titan Flyby 3, Image #3 »» Close Titan Flyby 3, Image #3

[Sunday, February 20, 2005] This image was taken with the narrow angle camera through a filter sensitive to wavelengths of polarized infrared light centered at 338 nanometers. The image was acquired at a distance of approximately 151,000 kilometers (94,000 miles) from Titan

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Titan: Impact Crater with Ejecta Blanket »» Titan: Impact Crater with Ejecta Blanket

[Sunday, February 20, 2005] The appearance of the crater and the extremely bright blanket of material surrounding it is indicative of an origin by impact, in which a hypervelocity comet or asteroid, in this case, roughly 5-10 km in size, slammed into the surface of Titan.

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Enceladus Mosaic »» Enceladus Mosaic

[Sunday, February 20, 2005] This spectacular view is a mosaic of four high resolution images taken by the Cassini spacecraft narrow angle camera on Feb. 16, 2005, during its close flyby of Saturn's moon Enceladus.

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Saturn's Rings Edge On »» Saturn's Rings Edge On

[Sunday, February 20, 2005] This image was taken on February 18, 2005 and received on Earth February 19, 2005. The camera was pointing toward SATURN at approximately 1,130,703 kilometers away

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Rhea Against Saturn's Rings »» Rhea Against Saturn's Rings

[Sunday, February 20, 2005] This image was taken on February 18, 2005 and received on Earth February 19, 2005. The camera was pointing toward Rhea at approximately 540,583 kilometers away.

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Dione and Titan »» Dione and Titan

[Sunday, February 20, 2005] This image was taken on February 18, 2005 and received on Earth February 19, 2005. The camera was pointing toward Dione at approximately 1,267,945 kilometers away. Titan is Visible to the upper right.

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NASA Cassini Image: Dione Eclipses Tethys as Seen From Cassini »» NASA Cassini Image: Dione Eclipses Tethys as Seen From Cassini

[Tuesday, February 22, 2005] This image was taken on February 20, 2005 and received on Earth February 21, 2005. The camera was pointing toward Dione [with Tethys behind Dione] at approximately 1,497,164 kilometers away

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Mimas Set Against Saturn's Outer Rings »» Mimas Set Against Saturn's Outer Rings

[Tuesday, February 22, 2005] This image was taken on February 20, 2005 and received on Earth February 21, 2005. The camera was pointing toward Mimas at approximately 1,675,681 kilometers away.

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