Cassini Radar Sees Titan's 'Cat'
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The international Cassini spacecraft is providing evidence that Saturn's planet-size moon Titan is geologically alive and has active atmospheric processes that could be moving material, possibly even liquids, on its surface, scientists said Thursday.
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Scientists now have their first direct evidence of changing weather patterns on Titan, Saturn&#39;s largest moon. When the Cassini spacecraft flew past the satellite on Monday it spied clouds at mid-latitudes
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The most recent spacecraft telemetry was acquired from the Goldstone tracking station on Wednesday, November 3. The Cassini spacecraft is in an excellent state of health and is operating normally.
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The Cassini spacecraft&#39;s close flyby of Saturn&#39;s mysterious moon Titan this week revealed clouds that will give clues to its weather, but the pass left scientists still puzzled about its surface.
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NASA released one of the best pictures ever made of Saturn's moon Titan as the Cassini spacecraft begins a close-up inspection of the satellite today. Cassini is making the nearest flyby ever of the smog-shrouded moon.
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PARIS-- Scientists piecing together  data from Europe's Huygens probe to  Saturn's moon Titan described the  hazy satellite&nbsp;today as an environment in which a frequent rain of liquid methane  falls through a thick smog onto hills  made of water  ice.
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The US-built orbiter Cassini will release the European-made probe Huygens at precisely 0408 GMT on Christmas day, if all goes according to plan, to send it rocketing toward the surface of Titan -- the only moon in the solar system that has an atmosphere.
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toomanyairmiles writes &quot;The BBC has an article indicating NASA&#39;s Cassini probe has successfully launched its robot lab on its three-week journey into the atmosphere of Saturn&#39;s moon Titan.
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Microwave brightness of Titan reveals surface properties such as temperature composition and roughness. Image Credit: NASA/JPL. Looking at radar reflections of Titan, scientists are puzzled by what they see
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Oct. 27 - Scientists are getting a closer look at one of the most mysterious moons in space, Saturn&#39;s largest moon, Titan. The Cassini orbiter flew within 750 miles of the cloud covered moon Tuesday.
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Images began streaming into the Cassini space mission&#39;s imaging team Tuesday night, bringing detailed pictures of Titan&#39;s surface.
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Titan 'T28' Mosaic (top image)Bright and dark terrain on Titan's trailing hemisphere is revealed by Cassini's Imaging Science Subsystem in this mosaic of images taken during the T28 flyby in April 2007.The region shown in this image, centred on the northern part of Titan's trailing hemisphere (near 31.2Â° North, 139.3Â° East), had only been seen at very low resolution until February 2007, when Cassini flew over this area for the first time. This mosaic consists of images taken during one of a series of flybys in early 2007 designed to study this long unavailable part of Titan (5150 kilometres across). Several intriguing surface features that warrant further study can be seen in this mosaic. Along the top of the mosaic is a series of dark lineaments, or linear features, that stand out against the bland northern, mid-latitude terrain. These features were also observed by the RADAR instrument in December 2006 and represent an area of potential future co-analysis for the RADAR and camera teams. Another such region is the large bright area known as Adiri at bottom centre, also imaged by RADAR in October 2005. The mosaic shows a number of dark areas within Adiri that line up with small dune fields observed by RADAR. A portion of the dark terrain surrounding Adiri was also observed by RADAR in 2005 and was similarly found to consist of large stretches of longitudinal dune fields - further supporting the correlation between equatorial dark regions and dune 'seas'. To the east of Adiri is a dark spot surrounded by a ring of bright material, which may be associated with an impact crater similar to Sinlap, discovered earlier in the mission. This mosaic consists of 29 separate frames using a total of 116 images. Each frame consists of three images, taken using a filter sensitive to near-infrared light centred at 938 nanometres, allowing for observations of Titan's surface and lower atmosphere, added together. An image taken using a filter sensitive to visible light centred at 619 nanometres was then subtracted from the product, effectively removing the lower atmosphere contribution to the brightness values in the image, increasing image contrast and improving the visibility of surface features. This process is also intended to reduce noise, but some camera artefacts still remain, such as a dark ring caused by dust in the camera system near the bottom right of each frame. The images used for this mosaic were taken on April 11, 2007 from distances ranging from 106 000 to 180 000 kilometres. This mosaic is in an orthographic projection with a pixel scale of 1.5 kilometres per pixel, although the size of resolvable features is likely several times larger, due to atmospheric scattering. An orthographic view is most like the view seen by a distant observer looking through a telescope.Titan 'T28' View
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Cassini&#39;s close fly-by of Titan, Saturn&#39;s largest moon, has left scientists with no clear idea of what to expect when the Huygens probe lands on the alien world, despite the amazingly detailed images they now have of the surface.
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This image is one of the closest ever taken of Saturn&#39;s hazy moon Titan. It was captured by Cassini&#39;s imaging science subsystem on Oct. 26, 2004, as the spacecraft flew by Titan.
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NASA&#39;s Cassini orbiter has had its closest encounter with Saturn&#39;s smog-shrouded moon, Titan, but scientists must wait to see their first glimpse of its icy surface.
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The Huygens probe has been released and is heading for Saturn&#39;s largest moon, Titan, scientists have confirmed. A signal that the robot lab had separated from its mothership, Cassini, was received by the US
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CAPE CANAVERAL, Fla., Dec. 25 -- More than 750 million miles from Earth, the European Space Agency's Huygens probe was released from NASA's Cassini orbiter Christmas Eve and placed on a collision course with Titan, one of Saturn's many moons.