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	<title>cassini &amp;laquo; WordPress.com Tag Feed</title>
	<link>http://en.wordpress.com/tag/cassini/</link>
	<description>Feed of posts on WordPress.com tagged "cassini"</description>
	<pubDate>Sun, 29 Nov 2009 07:28:23 +0000</pubDate>

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<title><![CDATA[Saturn’s Northern Hemisphere puts on dazzling light show for Cassini]]></title>
<link>http://weekendspacereview.wordpress.com/2009/11/29/saturn%e2%80%99s-northern-hemisphere-puts-on-dazzling-light-show-for-cassini/</link>
<pubDate>Sun, 29 Nov 2009 03:18:57 +0000</pubDate>
<dc:creator>weekendspacereview</dc:creator>
<guid>http://weekendspacereview.wordpress.com/2009/11/29/saturn%e2%80%99s-northern-hemisphere-puts-on-dazzling-light-show-for-cassini/</guid>
<description><![CDATA[The tallest known auroras in our solar system were discovered as Cassini imaged the first “northern ]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>The tallest known auroras in our solar system were discovered as Cassini imaged the first “northern lights” on the planet Saturn.</p>
<p>The auroras have a vertical pattern, which resemble tall curtains flapping in the wind. Some of which are seen 750 miles above the planet’s northern hemisphere.</p>
<p>Auroras occur on Earth as we all know, but they occur on other planets as well in our solar system. The new images from Saturn help us gain more knowledge into how auroras work. “Seeing these things on another planet helps us understand them a little better when we see them on Earth.” said Andrew Ingersoll of the Cassini imaging team.</p>
<p><a href="http://s966.photobucket.com/albums/ae141/weekendspacereview/?action=view&#38;current=SLIGHTS_01.jpg" target="_blank"><img src="http://i966.photobucket.com/albums/ae141/weekendspacereview/SLIGHTS_01.jpg" border="0" alt="" /></a><br />
<em>An aurora, shining high above the northern part of Saturn, moves from the night side to the day side of the planet in this image recorded by Cassini.</em></p>
<p>The new data seems to be helping already. Auroras occur when charged particles from a planet’s magnetosphere enter the atmosphere. So the heights of the auroras on Saturn say much about its atmospheric differences compared to the Earth.</p>
<p>The Earth’s atmosphere is mainly oxygen and nitrogen. The atmosphere of Saturn is primarily hydrogen, which is much lighter. This causes the atmosphere to extend out further from the planet, in turn increasing the height of the auroras.</p>
<p><span style='text-align:center; display: block;'><object width='425' height='350'><param name='movie' value='http://www.youtube.com/v/9AnF__jRDlY&#038;rel=1&#038;fs=1&#038;showsearch=0&#038;hd=0' /><param name='allowfullscreen' value='true' /><param name='wmode' value='transparent' /><embed src='http://www.youtube.com/v/9AnF__jRDlY&#038;rel=1&#038;fs=1&#038;showsearch=0&#038;hd=0' type='application/x-shockwave-flash' allowfullscreen='true' width='425' height='350' wmode='transparent'></embed></object></span><em>An aurora, shining high above the northern part of Saturn, moves from the night side to the day side of the planet in this movie recorded by Cassini.</em></p>
<p>Cassini has imaged the auroras of Saturn before, but that was using its ultraviolet and infrared imaging tools. These new images taken in October were captured with the visible light camera. The images were originally in black and white, but the imaging team enhanced them with a orange false-color to highlight the auroras.</p>
<p>The oxygen and nitrogen of the Earth’s atmosphere are what give our auroras their green, blue, and red colors. More needs to be studied about the atmosphere of Saturn to have a more accurate idea of what the colors of its auroras are.</p>
<p><span style='text-align:center; display: block;'><object width='425' height='350'><param name='movie' value='http://www.youtube.com/v/1A6PvnN8xsE&#038;rel=1&#038;fs=1&#038;showsearch=0&#038;hd=0' /><param name='allowfullscreen' value='true' /><param name='wmode' value='transparent' /><embed src='http://www.youtube.com/v/1A6PvnN8xsE&#038;rel=1&#038;fs=1&#038;showsearch=0&#038;hd=0' type='application/x-shockwave-flash' allowfullscreen='true' width='425' height='350' wmode='transparent'></embed></object></span><em>A Cassini scientist, Dr. Andy Ingersoll, explains the flickering &#8220;northern lights&#8221; high above Saturn, shown for the first time in a visible-light movie.</em></p>
<p><a href="http://www.google.com/cse?cx=partner-pub-3169168288888707%3Ay7agpdqj4es&#38;ie=ISO-8859-1&#38;q=Space+Exploration+News&#38;sa=Search"><img src="http://i966.photobucket.com/albums/ae141/weekendspacereview/googlehorizontalsearch.jpg" alt="Google Search" width="800" /></a></p>
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<title><![CDATA[Rising from the Haze]]></title>
<link>http://lightsinthedark.wordpress.com/2009/11/28/rising-from-the-haze/</link>
<pubDate>Sat, 28 Nov 2009 17:33:59 +0000</pubDate>
<dc:creator>J. Major</dc:creator>
<guid>http://lightsinthedark.wordpress.com/2009/11/28/rising-from-the-haze/</guid>
<description><![CDATA[&nbsp; Tethys emerges from Titan&#39;s haze No, it&#8217;s not the Enterprise emerging from Titan]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>&#160;</p>
<div id="attachment_1410" class="wp-caption aligncenter" style="width: 610px"><a href="http://lightsinthedark.wordpress.com/files/2009/11/titan_tethys.jpg"><img class="size-full wp-image-1410" title="titan_tethys" src="http://lightsinthedark.wordpress.com/files/2009/11/titan_tethys.jpg" alt="" width="600" height="564" /></a><p class="wp-caption-text">Tethys emerges from Titan&#39;s haze</p></div>
<p>No, it&#8217;s not the Enterprise emerging from Titan&#8217;s clouds, it&#8217;s <a href="http://saturn.jpl.nasa.gov/photos/imagedetails/index.cfm?imageId=2802" target="_blank">Tethys</a>, seen in the distance through the larger moon&#8217;s outer layer of hydrocarbon haze. Tethys&#8217; giant Odysseus crater is easily visible adorning its north pole and slicing into its terminator.</p>
<p>This image was taken on November 26, 2009 by the Cassini spacecraft at a distance of nearly 650,000 miles from Titan.</p>
<p>The <a href="http://saturn.jpl.nasa.gov/multimedia/images/raw/casJPGFullS55/N00147404.jpg" target="_blank">original</a> raw image was black and white&#8230;..I colored it in Photoshop using other color-calibrated images of <a href="http://photojournal.jpl.nasa.gov/jpeg/PIA11603.jpg" target="_blank">Titan</a> as a reference. I also extended some of the black sides to frame it better.</p>
<p>Image: NASA/JPL/SSI/J. Major</p>
<p>&#160;</p>
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<title><![CDATA[enviaron una sonda]]></title>
<link>http://mclover.wordpress.com/2009/11/28/enviaron-una-sonda/</link>
<pubDate>Sat, 28 Nov 2009 01:24:49 +0000</pubDate>
<dc:creator>mclover</dc:creator>
<guid>http://mclover.wordpress.com/2009/11/28/enviaron-una-sonda/</guid>
<description><![CDATA[los zombis &#8211; groenlandia Cassini tenía caracter de sonda. Quería cruzar cada limite, descubrir]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p style="text-align:right;"><a href="http://www.flickr.com/photos/gunnm/4139801242/"><img class="aligncenter" title="saturno" src="http://farm3.static.flickr.com/2668/4139801242_b5139c279b_o.jpg" alt="" width="492" height="480" /></a><a title="Banda sonora" href="http://www.youtube.com/watch?v=VbF1phW2xLI" target="_blank">los zombis &#8211; groenlandia</a></p>
<p style="text-align:left;">Cassini tenía caracter de sonda. Quería cruzar cada limite, descubrir nuevos territorios, fotografiar cada luna.</p>
<p style="text-align:left;">Viajó mucho, se hizo con muestras de tipo, se divirtió con cada experimeto , pero, durante un instante se paró y se materializo una pregunta en su cabeza ¿para qué tanto?</p>
<p style="text-align:left;">(ya no quedaba combustible con que volver a casa)</p>
<p style="text-align:left;">Cassini</p>
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<title><![CDATA[Cassini kann es nicht lassen: täglich neue dramatische Bilder]]></title>
<link>http://skyweek.wordpress.com/2009/11/25/cassini-kann-es-nicht-lassen-neue-dramatische-bilder/</link>
<pubDate>Wed, 25 Nov 2009 22:51:23 +0000</pubDate>
<dc:creator>skyweek</dc:creator>
<guid>http://skyweek.wordpress.com/2009/11/25/cassini-kann-es-nicht-lassen-neue-dramatische-bilder/</guid>
<description><![CDATA[Jeden Tag werden derzeit neue dramatische Bilder aus dem Saturnsystem veröffentlicht: vorgestern und]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Jeden Tag werden derzeit neue dramatische Bilder aus dem Saturnsystem veröffentlicht: vorgestern und heute verrückte Schwerkraft- und Lichteffekte in den Ringen und gestern eine Animation von Saturns Polarlichtern.</p>
<p><a href="http://ciclops.org/view/5805/Streamer-Channels_and_Shadow?js=1"><img src="http://skyweek.wordpress.com/files/2009/11/cassi1.jpg" alt="" title="cassi1" width="450" height="224" class="aligncenter size-full wp-image-2169" /></a></p>
<p>Hier hat der 86-km-Mond Prometheus nicht nur bemerkenswerte Muster im F-Ring (links) produziert, sondern wirft &#8211; nur eine Woche nach dem Äquinoktium im August &#8211; auch seinen Schatten schräg über den A-Ring.</p>
<p><a href="http://ciclops.org/view/5747/Slanting_Shadows?js=1"><img src="http://skyweek.wordpress.com/files/2009/11/cassi2.jpg" alt="" title="cassi2" width="450" height="179" class="aligncenter size-full wp-image-2170" /></a></p>
<p>Die nur 8 km große Daphnis (der helle Punkt) hat hier ein Wellenmuster im A-Ring an der Keeler-Lücke erzeugt, das <a href="http://skyweek.wordpress.com/2009/06/20/noch-nie-gesehene-strukturen-im-saturnring-daphnis-schuld">schon im Juni vorgestellt</a> worden war &#8211; aber nur eine Woche vor der Äquinoktium sind die Schatten der &#8220;Wellenberge&#8221; noch viel länger.</p>
<p><a href="http://www.jpl.nasa.gov/news/news.cfm?release=2009-176"><img src="http://skyweek.wordpress.com/files/2009/11/cassi3.jpg" alt="" title="cassi3" width="450" height="155" class="aligncenter size-full wp-image-2171" /></a></p>
<p>Und dies ist eins von 472 Bildern aus einem Film, der die Entwicklung der Polarlichter Saturns (im sichtbaren Licht aber in Falschfarben dargestellt) über 81 Tage verfolgt &#8211; mit 1200 km über den Wolken sind sie die höchsten des Sonnensystems (weil hier Wasserstoff zum Leuchten angeregt wird, der leichter als die bei irdischen Polarlichtern leuchtenden Gase ist).</p>
<p>In Sachen Saturn sorgt überdies noch <a href="http://arxiv.org/abs/0911.1860">ein Paper</a> für Aufsehen, in dem anhand der &#8211; direkt von Cassini gemessenen &#8211; Atmosphärenchemie des Titan auf die Zusammensetzung seiner Seen geschlossen wird, über die es keine direkten Daten gibt. Das Gebräu könnte <a href="http://www.newscientist.com/article/dn18183">dank Ethin</a> (Trivialname Acetylen; Anteil ~1%) überraschend <a href="http://www.wissenschaft.de/wissenschaft/news/308509.html">&#8216;nahrhaft&#8217;</a> sein, für <a href="http://www.spiegel.de/wissenschaft/weltall/0,1518,663194,00.html">sehr spezielle</a> Mikroorganismen, deren Existenz <a href="http://www.redshift-live.com/index.php/de/magazine/articles/Raumfahrt/21230-Leben_im_All-1.html">natürlich hochspekulativ</a> ist &#8230;</p>
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<title><![CDATA[Northern Exposure]]></title>
<link>http://lightsinthedark.wordpress.com/2009/11/24/northern-exposure/</link>
<pubDate>Wed, 25 Nov 2009 01:26:54 +0000</pubDate>
<dc:creator>J. Major</dc:creator>
<guid>http://lightsinthedark.wordpress.com/2009/11/24/northern-exposure/</guid>
<description><![CDATA[This video shows the movement of energetic aurora over Saturn&#8217;s northern hemisphere, taken my ]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p style="text-align:center;"><embed src='http://widgets.vodpod.com/w/video_embed/Groupvideo.4007063' type='application/x-shockwave-flash' AllowScriptAccess='always' pluginspage='http://www.macromedia.com/go/getflashplayer' wmode='transparent' flashvars='' /></p>
<p style="text-align:left;">This video shows the movement of energetic aurora over Saturn&#8217;s northern hemisphere, taken my the Cassini spacecraft over the course of four days. Saturn&#8217;s aurora is caused by the same <a href="http://en.wikipedia.org/wiki/Aurora_(astronomy)#Auroral_mechanism" target="_blank">process</a> as found on Earth but the results are much, much larger&#8230;some of the lights seen here stretch nearly 750 miles above the edge of the planet!</p>
<p style="text-align:left;">This is the first time Saturn&#8217;s aurora has been filmed in visible light. The images were originally black-and-white; the orange color was added later by the Cassini imaging team to highlight the aurora better. The actual color of Saturn&#8217;s northern lights isn&#8217;t yet known.</p>
<p style="text-align:left;"><a href="http://www.jpl.nasa.gov/news/news.cfm?release=2009-176&#38;rn=news.xml&#38;rst=2376" target="_blank">Read the official release here.</a></p>
<p style="text-align:left;">Credit: NASA/JPL/Space Science Institute</p>
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<title><![CDATA[Awesome pictures from the Enceladus flyby ]]></title>
<link>http://openparachute.wordpress.com/2009/11/25/awesome-pictures-from-the-enceladus-flyby/</link>
<pubDate>Wed, 25 Nov 2009 00:55:31 +0000</pubDate>
<dc:creator>Ken</dc:creator>
<guid>http://openparachute.wordpress.com/2009/11/25/awesome-pictures-from-the-enceladus-flyby/</guid>
<description><![CDATA[It&#8217;s amazing how much we are finding out about other bodies in the solar system these days. An]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>It&#8217;s amazing how much we are finding out about other bodies in the solar system these days. And the images we get back from some of our robotic spaceships can be incredible.</p>
<p>Here&#8217;s one taken by Cassini during a deep swoop past <a class="zem_slink" title="Enceladus (moon)" rel="wikipedia" href="http://en.wikipedia.org/wiki/Enceladus_%28moon%29">Enceladus</a>, a moon of Saturn. This is an intriguing moon because it is thought to contain an ocean of water below an ice surface. It is also very active with plumes of material shooting at least 1000 km into space. In fact, these plumes may be contributing material to <a class="zem_slink" title="Rings of Saturn" rel="wikipedia" href="http://en.wikipedia.org/wiki/Rings_of_Saturn">Saturn&#8217;s rings</a>.</p>
<p>The swoop, early this month, was the deepest yet brought the spacecraft to about 100 km from the moon&#8217;s surface. it also took the craft through the heart of a plume enabling further investigation of its compositions and density. Scientists thinks the heating and tectonic activity arises from tidal forces caused by proximity to Saturn. There is even speculation that this energy and the presence of liquid water could provide conditions for life on the moon.</p>
<p>Thanks to Emily Lakdawalla at <a href="http://www.planetary.org/blog/article/00002227/">The Planetary Society Blog.</a></p>
<p style="text-align:center;"><a href="http://openparachute.wordpress.com/files/2009/11/encaledus1.jpg"><img class="size-full wp-image-6384 aligncenter" style="margin-top:10px;margin-bottom:10px;" title="enceladus1" src="http://openparachute.wordpress.com/files/2009/11/encaledus1.jpg" alt="" width="500" height="274" /></a></p>
<p style="text-align:left;">Click on <a href="http://openparachute.wordpress.com/files/2009/11/enceladus_plumes_flythru.gif" target="_blank">Enceladus flyby</a> for a compostie animation of images of the plumes.</p>
<p style="text-align:left;"><span style="text-decoration:underline;"><strong><!--more-->See also:</strong></span> Video compilation of still images from a previous flyby</p>
<p style="text-align:left;">http://www.youtube.com/watch?v=l5PqLPU2VA4</p>
<p style="text-align:left;"><span style='text-align:center; display: block;'><object width='425' height='350'><param name='movie' value='http://www.youtube.com/v/l5PqLPU2VA4&#038;rel=1&#038;fs=1&#038;showsearch=0&#038;hd=0' /><param name='allowfullscreen' value='true' /><param name='wmode' value='transparent' /><embed src='http://www.youtube.com/v/l5PqLPU2VA4&#038;rel=1&#038;fs=1&#038;showsearch=0&#038;hd=0' type='application/x-shockwave-flash' allowfullscreen='true' width='425' height='350' wmode='transparent'></embed></object></span></p>
<p><span style="text-decoration:underline;"><strong>See also:</strong></span><br />
<a href="http://blogs.nasa.gov/cm/blog/enceladus.blog/posts/post_1225569468859.html" target="_blank">Greetings to All You Fellow Cassini Travelers!</a></p>
<p><a href="http://saturn.jpl.nasa.gov/mission/flybys/enceladus20091102/" target="_blank">Enceladus Flyby &#8211; Nov. 2, 2009</a></p>
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<title><![CDATA[Northern Aurora in Motion (NASA Cassini Saturn Mission Images)]]></title>
<link>http://jfnet.wordpress.com/2009/11/25/northern-aurora-in-motion-nasa-cassini-saturn-mission-images/</link>
<pubDate>Wed, 25 Nov 2009 00:06:42 +0000</pubDate>
<dc:creator>jf</dc:creator>
<guid>http://jfnet.wordpress.com/2009/11/25/northern-aurora-in-motion-nasa-cassini-saturn-mission-images/</guid>
<description><![CDATA[(Ciclops.org) &#8211; An aurora, shining high above the northern part of Saturn, moves from the nigh]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>(Ciclops.org) &#8211; <strong>A</strong>n aurora, shining high above the northern part of Saturn, moves from the night side to the day side of the planet in this movie recorded by Cassini.</p>
<p>These observations, taken over four days, represent the first visible-light video of Saturn&#8217;s auroras. &#8230;</p>
<p style="text-align:center;"><a title="Saturn's Aurora" href="http://ciclops.org/view/5970/Northern_Aurora_in_Motion" target="_blank">http://ciclops.org/view/5970/Northern_Aurora_in_Motion<br />
<img class="aligncenter size-full wp-image-424" title="Ciclops" src="http://jfnet.wordpress.com/files/2009/11/ciclops.jpg" alt="" width="200" height="55" /></a></p>
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<title><![CDATA[Cool Stuff From Cassini]]></title>
<link>http://webnerhouse.com/2009/11/23/cool-stuff-from-cassini/</link>
<pubDate>Tue, 24 Nov 2009 01:23:18 +0000</pubDate>
<dc:creator>webnerbob</dc:creator>
<guid>http://webnerhouse.com/2009/11/23/cool-stuff-from-cassini/</guid>
<description><![CDATA[NASA&#8217;s Cassini space probe flew by the Saturn moon Enceladus and sent back some pretty cool im]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p><img class="alignright" src="http://www.fas.org/irp/imint/docs/rst/Sect19/Enceladus.JPG" alt="" width="240" height="270" />NASA&#8217;s Cassini space probe <a href="http://www.nasa.gov/mission_pages/cassini/whycassini/cassini20091121.html">flew by the Saturn moon Enceladus and sent back some pretty cool images</a>.  Enceladus is one of Saturn&#8217;s 61 moons &#8212; 23 if you count only those that have regular orbits &#8212; and is pretty interesting.  It is the sixth largest moon of Saturn, and its fissured, ice-covered surface spews vast plumes of water vapor into space.  The <a href="http://www.nasa.gov/mission_pages/cassini/multimedia/index.html">NASA website has some interesting pictures</a>.</p>
<p>Enceladus, for those who don&#8217;t have an encyclopedic recollection of Greek mythology, was one of the Giants who was defeated by the Olympian Gods.</p>
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<title><![CDATA[Ennie and the Jets]]></title>
<link>http://lightsinthedark.wordpress.com/2009/11/23/ennie-and-the-jets/</link>
<pubDate>Mon, 23 Nov 2009 23:46:27 +0000</pubDate>
<dc:creator>J. Major</dc:creator>
<guid>http://lightsinthedark.wordpress.com/2009/11/23/ennie-and-the-jets/</guid>
<description><![CDATA[&nbsp; 1, 2, 3 of Enceladus&#39; icy geysers Another great image from the latest flyby of Enceladus ]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>&#160;</p>
<div id="attachment_1394" class="wp-caption aligncenter" style="width: 610px"><a href="http://lightsinthedark.wordpress.com/files/2009/11/ennie_and_the_jets.jpg"><img class="size-full wp-image-1394" title="ennie_and_the_jets" src="http://lightsinthedark.wordpress.com/files/2009/11/ennie_and_the_jets.jpg" alt="" width="600" height="600" /></a><p class="wp-caption-text">1, 2, 3 of Enceladus&#39; icy geysers</p></div>
<p>Another great image from the latest flyby of Enceladus by the Cassini spacecraft, this one shows three frigid plumes firing off into space from the moon&#8217;s south pole.</p>
<p>More images from the flyby can be seen on my previous posts, or by going to the CICLOPS site listed in the sidebar.</p>
<p>This last flyby of Enceladus, Cassini&#8217;s eighth so far, was the last sunlit view of the &#8220;tiger stripe&#8221; fissures before they&#8217;ll be hidden in darkness during the moon&#8217;s winter. The fissures are the source of the ice geysers that have attracted so much attention over the past few years.</p>
<blockquote><p>&#8220;These first raw images are spectacular, and paint an even more fascinating picture of Enceladus.&#8221;</p>
<p>– Bob Pappalardo, Cassini mission scientist</p></blockquote>
<p>Raw image: NASA/JPL/Space Science Institute</p>
<p>(Oh, and sorry about the post title. <img src='http://s.wordpress.com/wp-includes/images/smilies/icon_wink.gif' alt=';)' class='wp-smiley' />  )</p>
<p>&#160;</p>
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<title><![CDATA[Emily Lakdawalla: More Pictures from the Enceladus Flyby]]></title>
<link>http://jfnet.wordpress.com/2009/11/23/emily-lakdawalla-pictures-from-the-enceladus-flyby/</link>
<pubDate>Mon, 23 Nov 2009 20:25:29 +0000</pubDate>
<dc:creator>jf</dc:creator>
<guid>http://jfnet.wordpress.com/2009/11/23/emily-lakdawalla-pictures-from-the-enceladus-flyby/</guid>
<description><![CDATA[(The Planetary Society) &#8211; Cassini flies into the plumes &#8230; http://planetary.org/blog/arti]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>(The Planetary Society) &#8211; <a title="Cassini-Huygens" href="http://www.planetary.org/explore/topics/cassini_huygens/" target="_blank"><strong>C</strong>assini</a> flies into the plumes &#8230;</p>
<p style="text-align:center;"><a title="Cassini Enceladus Flyby" href="http://planetary.org/blog/article/00002227/" target="_blank">http://planetary.org/blog/article/00002227/<br />
<img class="aligncenter size-full wp-image-406" title="Cassini Enceladus" src="http://jfnet.wordpress.com/files/2009/11/cassinienceladus.jpg" alt="" width="200" height="110" /></a></p>
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<title><![CDATA[Nasa Cassini spacecraft sends pictures of Saturn's moon]]></title>
<link>http://iamnotarapperispit.wordpress.com/2009/11/23/nasa-cassini-spacecraft-sends-pictures-of-saturns-moon/</link>
<pubDate>Mon, 23 Nov 2009 15:28:24 +0000</pubDate>
<dc:creator>iSpit</dc:creator>
<guid>http://iamnotarapperispit.wordpress.com/2009/11/23/nasa-cassini-spacecraft-sends-pictures-of-saturns-moon/</guid>
<description><![CDATA[Water vapour and other particles spew from fissures on the moon&#8217;s surface &nbsp; Nasa has rele]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p><img src="http://newsimg.bbc.co.uk/media/images/46785000/jpg/_46785024_405756main_cassini20091121-a-full.jpg" border="0" alt="Enceladus (Nasa) " hspace="0" vspace="0" width="411" height="229" /></p>
<div class="cap">Water vapour and other particles spew from fissures on the moon&#8217;s surface</div>
<p>&#160;</p>
<p><!-- E IIMA --> <!-- S SF --></p>
<p class="first"><strong>Nasa has released the latest raw images of Saturn&#8217;s moon Enceladus, from the Cassini spacecraft&#8217;s extended mission to the planet and its satellites.</strong></p>
<p>The images show the moon&#8217;s rippling terrain in remarkable clarity.</p>
<p>Cassini started transmitting uncalibrated temperature data and images during a flyby on 21 November.</p>
<p>The data will help scientists create a highly detailed mosaic image of the southern part of the moon&#8217;s Saturn-facing hemisphere, and a thermal map.</p>
<p>&#160;</p>
<p><!--more--></p>
<p><!-- E SF -->This thermal map will help researchers to study the long fractures in the south polar region of the moon&#8217;s surface, which have been dubbed &#8220;tiger stripes&#8221; and are warmer than the rest of the surface.</p>
<p><!-- S IIMA --></p>
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<div><img src="http://newsimg.bbc.co.uk/media/images/46785000/jpg/_46785025_405760main_cassini20091121-b-full.jpg" border="0" alt="Enceladus (Nasa) " hspace="0" vspace="0" width="226" height="200" />
<p>&#160;</p>
<div class="cap">The icy moon&#8217;s surface contains ridges and fractures</div>
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<p><!-- E IIMA -->Scientists are particularly interested in these fissures because they spew out jets of water vapour, and other particles, in plumes that reach hundreds of kilometres above the surface.</p>
<p>This flyby was scientists&#8217; last peek at the tiger stripes before the south pole fades into the darkness of winter for many years.</p>
<p>Cassini completed its initial four-year mission to explore Saturn in June 2008.</p>
<p>But because the spacecraft is still functioning so well, it was reprogrammed to work overtime on the Cassini Equinox Mission.</p>
<p>The extended mission will last until late 2010. It was named after Saturn&#8217;s equinox, which occurred in August 2009 &#8211; when the sun shone directly on the equator, illuminating the northern hemisphere and the rings&#8217; northern face.</p>
<p><strong>Working overtime</strong></p>
<p>Saturn&#8217;s orbit is so vast that Equinox happens only once every 15 Earth years.</p>
<p>Cassini is now continuing to observe seasonal changes brought about by the changing sun angle on Saturn, its rings and its moons.</p>
<p><!-- S IIMA --></p>
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<div><img src="http://newsimg.bbc.co.uk/media/images/46786000/jpg/_46786523_404721main_cassini20091119-b-516-1.jpg" border="0" alt="Enceladus (Nasa) " hspace="0" vspace="0" width="226" height="282" />
<p>&#160;</p>
<div class="cap">One of the &#8220;tiger stripes&#8221; from a previous Enceladus flyby</div>
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<p><!-- E IIMA -->&#8220;These first raw images are spectacular, and paint an even more fascinating picture of Enceladus,&#8221; said Bob Pappalardo, Cassini project scientist at Nasa&#8217;s Jet Propulsion Laboratory in Pasadena, US.</p>
<p>&#8220;The Cassini teams will be delving into the data to better understand the workings of this bizarre, active moon.&#8221;</p>
<p>This was the eighth targeted flyby of Enceladus, and brought Cassini to within about 1,600km (1,000 miles) of the moon&#8217;s surface.</p>
<p>Cassini is now cruising toward Rhea, another of the planet&#8217;s moons.</p>
<p><!-- S IIMA --></p>
<div><img src="http://newsimg.bbc.co.uk/media/images/46785000/jpg/_46785026_398916main_cassini20091103-a-full.jpg" border="0" alt="Enceladus (Nasa) " hspace="0" vspace="0" width="440" height="245" />
<p>&#160;</p>
<div class="cap">Cassini&#8217;s data will allow scientists to map the active moon in new detail</div>
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<title><![CDATA[Cassini image of the week #2]]></title>
<link>http://explorationandlife.wordpress.com/2009/11/23/cassini-image-of-the-week-2/</link>
<pubDate>Mon, 23 Nov 2009 10:18:20 +0000</pubDate>
<dc:creator>wolfeii</dc:creator>
<guid>http://explorationandlife.wordpress.com/2009/11/23/cassini-image-of-the-week-2/</guid>
<description><![CDATA[Image credit: NASA/JPL/Space Science Institute This unprocessed image, taken on the 21st of November]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p><img class="alignnone size-full wp-image-277" title="The surface of Enceladus" src="http://explorationandlife.wordpress.com/files/2009/11/untitled3.jpg" alt="" width="720" height="469" /></p>
<p style="text-align:right;">Image credit: NASA/JPL/Space Science Institute</p>
<p style="text-align:left;">This unprocessed image, taken on the 21st of November, shows the icy surface of Encladus. As always, the full image can be found at <a href="http://ciclops.org/view/5999/Enceladus_Rev_121_Flyby_Raw_Preview_6">CICLOPS</a>.</p>
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<title><![CDATA[And The Hits Keep Coming!]]></title>
<link>http://geordicalrissian.wordpress.com/2009/11/22/and-the-hits-keep-coming/</link>
<pubDate>Sun, 22 Nov 2009 23:35:30 +0000</pubDate>
<dc:creator>Geordi Calrissian</dc:creator>
<guid>http://geordicalrissian.wordpress.com/2009/11/22/and-the-hits-keep-coming/</guid>
<description><![CDATA[Last week it was ESA and Rosetta. This week, NASA had to go one up on the Europeans. Waaaaay back in]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Last week it was <a href="http://geordicalrissian.wordpress.com/2009/11/12/esa-rocks-again/">ESA and Rosetta</a>. This week, NASA had to go one up on the Europeans.</p>
<p>Waaaaay back in 2006, <a href="http://saturn.jpl.nasa.gov/index.cfm">Cassini</a> was able to image geysers shooting off of <a href="http://apod.nasa.gov/apod/ap090628.html">Saturn&#8217;s moon Enceladus</a>. Since that discovery, the Cassini team has been able to swing the orbiting robot into a few really close passes to the moon.</p>
<p>A few days ago, they were able to capture this fantabulous shot!</p>
<p style="text-align:center;">
<div class="wp-caption aligncenter" style="width: 434px"><img class=" " title="Enceladus Geysers" src="http://cumbriansky.files.wordpress.com/2009/11/n00146701b.jpg?w=424&#038;h=476" alt="" width="424" height="476" /><p class="wp-caption-text">Enceladus Geysers!</p></div>
<p>Stu over at <a href="http://cumbriansky.wordpress.com/">Cumbrian Sky</a> has a nice <a href="http://cumbriansky.wordpress.com/2009/11/21/perfect-plumes/">post that sums up my feelings</a> as well (thanks for the pic!). How I&#8217;d love to be able to see these geysers with my own eyes!</p>
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<title><![CDATA[Cold and Bright]]></title>
<link>http://lightsinthedark.wordpress.com/2009/11/22/cold-and-bright/</link>
<pubDate>Sun, 22 Nov 2009 21:08:18 +0000</pubDate>
<dc:creator>J. Major</dc:creator>
<guid>http://lightsinthedark.wordpress.com/2009/11/22/cold-and-bright/</guid>
<description><![CDATA[The highly reflective surface of Enceladus After making its flyby early Saturday morning the Cassini]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><div id="attachment_1389" class="wp-caption aligncenter" style="width: 610px"><a href="http://lightsinthedark.wordpress.com/files/2009/11/enceladus_e8.jpg"><img class="size-full wp-image-1389" title="enceladus_E8" src="http://lightsinthedark.wordpress.com/files/2009/11/enceladus_e8.jpg" alt="" width="600" height="600" /></a><p class="wp-caption-text">The highly reflective surface of Enceladus</p></div>
<p>After making its flyby early Saturday morning the Cassini spacecraft captured this full-sized view of Enceladus from a distance of about 83,000 miles. (Image has been level-adjusted to bring out surface details. Original raw image can be seen <a href="http://saturn.jpl.nasa.gov/multimedia/images/raw/casJPGFullS55/N00146996.jpg" target="_blank">here</a>.)</p>
<p>318 miles across at its widest point, Enceladus&#8217; wrinkled surface is composed of water ice that has been cracked, stretched and folded into ridges due to tectonic activity that may be the result of a liquid water interior. The water is definitely there&#8230;.it&#8217;s being sprayed out into space through fissures in the moon&#8217;s southern hemisphere (see previous post) but the extent – and heat source –  of that liquid water still remains to be discovered.</p>
<p>Being covered in ice makes Enceladus is extremely bright; it reflects nearly 100% of the sunlight that hits it. This also keeps the moon very cold&#8230;the surface temperature on Enceladus is -330º F. Still, some process is keeping parts of the moon warm enough for liquid water to exist, and this is what scientists on the Cassini team are trying to learn more about.</p>
<p>Image: NASA/JPL/SSI</p>
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<title><![CDATA[Raumfahrt-Nachrichten <i>kompakt</i>]]></title>
<link>http://skyweek.wordpress.com/2009/11/21/raumfahrt-nachrichten-kompakt-5/</link>
<pubDate>Sat, 21 Nov 2009 20:41:27 +0000</pubDate>
<dc:creator>skyweek</dc:creator>
<guid>http://skyweek.wordpress.com/2009/11/21/raumfahrt-nachrichten-kompakt-5/</guid>
<description><![CDATA[Die Geysire von Enceladus, wie sie noch keiner sah Rohbilder: CICLOPS / Mosaik: Cumbrian Sky / Weite]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><h3>Die Geysire von Enceladus, wie sie noch keiner sah</h3>
<p><a href="http://twitpic.com/qebuz"><img src="http://skyweek.wordpress.com/files/2009/11/enceladus_plumes.jpg" alt="" title="enceladus_plumes" width="450" height="214" class="aligncenter size-full wp-image-2047" /></a><font size="-2">Rohbilder: CICLOPS / Mosaik: Cumbrian Sky / Weiterverarbeitung: Skyweek 2.0</font></p>
<p>Beim heutigen <a href="http://www.jpl.nasa.gov/news/features.cfm?feature=2369">Vorbeiflug der Raumsonde Cassini an Enceladus</a> &#8220;E8&#8243; sind <a href="http://saturn.jpl.nasa.gov/photos/raw/?start=1">Bilder</a> entstanden, die selbst erfahrene Kenner der Mission schockierten: Zum ersten Mal sieht man die <a href="http://skyweek.wordpress.com/2009/11/12/raumfahrt-nachrichten-kompakt">berühmten Geysire</a> direkt aus der Oberfläche des Saturnmonds herausbrechen (oben), und auch von dieser selbst gibt es faszinierende Nahaufnahmen (unten). Aus Bildpaaren haben Cassini-Fans auch schon erste 3D-Bilder von Geysiren wie Topografie gebastelt. (<a href="http://cumbriansky.wordpress.com/2009/11/21/perfect-plumes">Cumbrian Sky</a>, <a href="http://www.planetary.org/blog/article/00002225">Planetary Society Blog</a>, <a href="http://www.universetoday.com/2009/11/21/de-plume-de-plume-enceladus-raw-flyby-images">Universe Today</a> 21.11.2009) NACHTRAG: ein <a href="http://www.jpl.nasa.gov/news/features.cfm?feature=2372">JPL Release</a>. NACHTRAG 2: ein neues <a href="http://www.planetary.org/blog/article/00002226">Mosaik der Oberfläche</a> sowie eine künstlerische <a href="http://eas-astroblog.blogspot.com/2009/11/artists-rendition-of-enceladus.html">Umsetzung des Bildes oben</a> aus Amateurhand. NACHTRAG 3: ein <a href="http://www.planetary.org/blog/article/00002227">besseres Plume-Mosaik</a> (obiges scheint auch seitenverkehrt zu sein) &#8211; und eine Animation aus Cassini-Sicht!</p>
<p><a href="http://ciclops.org/view_event/120/Enceladus_Rev_121_Flyby_Raw_Preview?js=1"><img src="http://skyweek.wordpress.com/files/2009/11/enceladus_surface.jpg" alt="" title="enceladus_surface" width="450" height="321" class="aligncenter size-full wp-image-2048" /></a><font size="-2">CICLOPS</font></p>
<h3>Scharenweise Mondgestein von den Apollo-Missionen verschwunden</h3>
<p>Das Mondgestein, das bei den Apollo-Missionen in großer Menge bei der NASA landete, ist nicht nur wissenschaftlichen Untersuchungen zugeführt worden: 368 Mondsteine hat die amerikanische Bundesregierung als ihr alleiniger Besitzer diversen Bundesstaaten und auch vielen anderen Ländern geschenkt. Vierzig Jahre später ist ein <i>Großteil</i> dieser Geschenke nicht mehr auffindbar: Nur von drei Dutzend weiß man genau, wo sie sind &#8211; während man z.B. gerade auf Hawaii ebenso emsig wie vergebens nach gleich fünf Mondgeschenken sucht &#8230; (<a href="http://www.honoluluadvertiser.com/article/20091023/NEWS01/910230366/Hawaii+s+moon+rocks+go+missing">Honolulu Advertiser</a> 23.10.2009)</p>
<p><b>&#8220;Höhle&#8221; auf dem (Erd-)Mond nicht unbedingt wohnfreundlich</b>: Vor einem Monat hatte die Entdeckung einer offenbar eingestürzten Decke eines Lavakanals auf Bildern des japanischen Orbiters Kaguya für Aufregung gesorgt, schien dies doch geradezu eine Einladung für künftige Siedler zu sein. Aber der Enthusiasmus ist schnell abgekühlt: Solcherlei Löcher auf dem Mond scheinen extrem rar zu sein, wer weiß, wieviel Schutt in der alten Röhre liegt &#8211; und in der Nähe der feuchten Polregionen, in die es die Siedlungsplaner zieht, gibt es eh&#8217; nur Hochländer und keine vulkanischen Hinterlassenschaften. (<a href="http://www.planetary.org/blog/article/00002173">Planetary Society Blog</a> 20., <a href="http://www.newscientist.com/article/dn18030">New Scientist</a> 22., <a href="http://lunarnetworks.blogspot.com/2009/10/paul-spudis-caves-on-moon.html">Lunar Networks</a> 28.10.2009)</p>
<h3>Cleverer Rettungsplan für die Hayabusa-Sonde</h3>
<p>Nur zwei Wochen nach dem <a href="http://skyweek.wordpress.com/2009/11/15/raumfahrt-nachrichten-kompakt-4">jüngsten schweren Rückschlag</a> für die japanischen Asteroidenmission hat die clevere Flugkontrolle schon einen Plan, wie die ziemlich kaputte und <i>vielleicht</i> mit etwas Itokawa-Staub gefüllte Sonde es doch noch zur Erde schaffen kann: Es werden gleichzeitig die Ionenquelle des Triebwerks B (dessen Neutralisator kaputt ist) und der Neutralisator von Triebwerk A (das wegen Instabilität nie benutzt wurde) eingesetzt. Damit sollte eine Rückkehr im Juni 2010 weiter möglich bleiben. (<a href="http://www.jaxa.jp/press/2009/11/20091119_hayabusa_e.html">JAXA Release</a>, <a href="http://www.planetary.org/blog/article/00002221">Planetary Society Blog</a> 19., <a href="http://www.newscientist.com/article/dn18182">New Scientist</a> 20.11.2009)</p>
<p><b>Die ESA ist mit einer viel teureren Merkur-Mission einverstanden</b>: Das Science Programme Committee hat sich damit abgefunden, für BepiColombo fast 1 Mrd. Euro auszugeben &#8211; aber dafür wäre die Mission (die auch einen japanischen Magnetosphären-Orbiter einschließt) auch dramatisch leistungsfähiger als der <a href="http://skyweek.wordpress.com/2009/11/03/facetten-vom-3-merkur-flyby-und-in-500-tagen-im-orbit">MESSENGER der NASA</a>. Den nennen die ESA-Funktionäre eine &#8216;Vorspeise&#8217;, BepiColombo sei dagegen erst das &#8216;Festmahl&#8217;. Auch wenn er erst 2014 startet &#8230; (<a href="http://news.bbc.co.uk/2/hi/science/nature/8364704.stm">BBC</a> 18.11.2009)</p>
<h3>Verdiente Hubble-Instrumente im Museum gelandet</h3>
<p>Die bei der <a href="http://skyweek.wordpress.com/2009/05/18/letzte-hubble-wartung-beendet-alles-hat-geklappt">Shuttle-Mission im Mai</a> ausgebaute Wide Field and Planetary Camera 2 (WFPC2), das langjährige Arbeitspferd des Hubble Space Telescope, und das Corrective Optics Space Telescope Axial Replacement (COSTAR), das den anderen Instrumenten der 1. Generation trotz falsch geschliffenen Hauptspiegels scharfe Sicht ermöglichte, nun aber nicht mehr gebraucht wird, weil alle späteren Instrumente eigene Korrekturoptiken haben, sind jetzt im National Air &#38; Space Museum in Washington, D.C., zu sehen. Allerdings nur bis Mitte Dezember: Dann gehen beide &#8220;auf Tour&#8221; in Südkalifornien, um schließlich im März 2010 endgültig wieder im NASM zu landen, dann als Teil einer <a href="http://www.collectspace.com/ubb/Forum41/HTML/000303.html">neuen permanenten Ausstellung</a> im berühmtesten L&#38;R-Museum des Planeten. (<a href="http://www.jpl.nasa.gov/news/news.cfm?release=2009-169">JPL Release</a> 18., <a href="http://www.collectspace.com/news/news-111909a.html">CollectSpace</a> 19., <a href="http://news.bbc.co.uk/2/hi/science/nature/8369323.stm">BBC</a> 20.11.2009)</p>
<p><b>Start von WISE auf den 9. Dezember gerutscht</b>, frühestens: Der IR-Satellit auf einer Delta II soll auf die Auswertung eines Delta-IV-Starts kurz davor warten. Das Potenzial des Wide-field Infrared Survey Explorer für alle Arten von Astronomie wird derweil hinreichend beworben. (<a href="http://www.nasa.gov/centers/kennedy/launchingrockets/status/2009/elvstatus-20091117.html">ELV Status</a>, <a href="http://www.nasa.gov/home/hqnews/2009/nov/HQ_09-269_Wise.html">NASA Release</a>, <a href="http://www.pasadenastarnews.com/news/ci_13806927">Pasadena Star News</a> 17., <a href="http://www.centauri-dreams.org/?p=10216">Centauri Dreams</a> 13., <a href="http://www.jpl.nasa.gov/news/features.cfm?feature=2355">JPL Feature</a> 11.11., <a href="http://science.nasa.gov/headlines/y2009/15sep_ninjaastronomy.htm">Science@NASA</a> 15.9., <a href="http://www.jpl.nasa.gov/news/news.cfm?release=2009-127">JPL Release</a> 17.8.2009) NACHTRAG: ein <a href="http://www.nasa.gov/home/hqnews/2009/nov/HQ_M09-225_WISE_advisory.html">Media Advisory</a> zum Start.</p>
<h3>Scharfe Bilder fremder Erden kein Problem &#8211; aber von ihren Bewohnern &#8230;</h3>
<p>Den nächsten paar Generationen von Weltraumteleskopen wird es wohl gelingen, nicht nur erdähnliche Planeten anderer sonnenähnlicher Sterne zu entdecken, abzubilden und sogar räumlich aufzulösen (inklusive Exowäldern und Exosavannen) &#8211; und vielleicht wird dabei auch spektroskopisch der Nachweis gelingen, dass auf diesen Welten Leben die Umwelt verändert. Doch <i>danach</i> beginnt ein Jahrtausend des Frustes, sagen eine Anzahl prominenter Planetenforscher in einem ungewöhnlichen Paper voraus: Denn um sich die Aliens auch <i>anzugucken</i>, wären entweder völlig utopische Weltraumteleskope erforderlich (die Arbeit rechnet tatsächlich vor, welch ein absurdes Teleskop man bräuchte, um einem 10-Meter-Tier mit 1 m Auflösung dabei zuzugucken, wie es über einen hypothetischen Planeten von Alpha Centauri kriecht!) oder aber eine Reise zu den nämlichen Planeten, was aber nur mit mindestens ebenso utopischen Antrieben zu schaffen sei. (Schneider &#38; al., <a href="http://arxiv.org/abs/0910.0726">Preprint</a> 6.10.2009)</p>
<p><b>Was hingegen das nächste <i>Jahrzehnt</i> bringen könnte</b> oder sollte, beschreibt ein anderes Paper: Die &#8220;zugänglichsten&#8221; Exoplaneten, die Leben tragen könnten, sind demnach Super-Erden (also Felsplaneten mit ein paar Erdmassen) in Orbits um M-Sterne, die in den habitablen Zonen kreisen. Man kann sie finden (wobei die Mission <a href="http://www.centauri-dreams.org/?p=8340">TESS sehr helfen</a> würde), und bereits das JWST könnte viel über sie herausfinden. Allerdings ist es leicht möglich, dass sich die Umweltbedingungen dieser Welten doch sehr von unserer unterscheiden &#8211; doch fremde <i>Erden</i> in einer <i>Nähe</i> zu finden, dass man sie überhaupt erforschen kann, ist weitaus schwieriger. (Deming &#38; Seager, <i>Nature</i> <b>462</b> [19.11.2009] 301-6. Auch Papers zu den &#8211; nur etwas futuristischeren &#8211; Projekten <a href="http://arxiv.org/abs/0911.3200">TPF/Coronagraph</a> und <a href="http://arxiv.org/abs/0911.3841">ATLAST</a> und zur <a href="http://arxiv.org/abs/0911.2936">allgemeinen Lage</a> und Artikel zum <a href="http://www.centauri-dreams.org/?p=10376">Starshade</a>-Vorschlag</a> und dem möglichen <a href="http://www.astrobio.net/exclusive/3315/hunting-for-planets-in-the-dark">Einsatz von Dunkel-Energie-Missionen</a> zur Exoplanetenjagd)</p>
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<title><![CDATA[Enceladus flyby II]]></title>
<link>http://vossinakis.wordpress.com/2009/11/21/enceladus-flyby-ii/</link>
<pubDate>Sat, 21 Nov 2009 18:49:42 +0000</pubDate>
<dc:creator>vossinakis</dc:creator>
<guid>http://vossinakis.wordpress.com/2009/11/21/enceladus-flyby-ii/</guid>
<description><![CDATA[Ακόμη μια εντυπωσιακή φωτογραφία του Εγκέλαδου απο απόσταση 543.000 χιλιομέτρων, όπου φαίνεται ο πίδ]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Ακόμη μια εντυπωσιακή φωτογραφία του Εγκέλαδου απο απόσταση 543.000 χιλιομέτρων, όπου φαίνεται ο πίδακας αερίων.</p>
<p><a href="http://vossinakis.wordpress.com/files/2009/11/6001_14134_1.jpg"><img src="http://vossinakis.wordpress.com/files/2009/11/6001_14134_1.jpg" alt="" title="6001 14134 1" width="468" height="629" class="alignnone size-full wp-image-367" /></a></p>
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<title><![CDATA[Εικόνες απο τον Εγκέλαδο]]></title>
<link>http://vossinakis.wordpress.com/2009/11/21/%ce%b5%ce%b9%ce%ba%cf%8c%ce%bd%ce%b5%cf%82-%ce%b1%cf%80%ce%bf-%cf%84%ce%bf%ce%bd-%ce%b5%ce%b3%ce%ba%ce%ad%ce%bb%ce%b1%ce%b4%ce%bf/</link>
<pubDate>Sat, 21 Nov 2009 17:49:15 +0000</pubDate>
<dc:creator>vossinakis</dc:creator>
<guid>http://vossinakis.wordpress.com/2009/11/21/%ce%b5%ce%b9%ce%ba%cf%8c%ce%bd%ce%b5%cf%82-%ce%b1%cf%80%ce%bf-%cf%84%ce%bf%ce%bd-%ce%b5%ce%b3%ce%ba%ce%ad%ce%bb%ce%b1%ce%b4%ce%bf/</guid>
<description><![CDATA[Το Cassini πραγματοποιεί το όγδοο fly-by απο τον Εγκέλαδο και μας επιστρέφει απίστευτες φωτογραφίες.]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Το Cassini πραγματοποιεί το όγδοο fly-by απο τον Εγκέλαδο και μας επιστρέφει απίστευτες φωτογραφίες. Η συγκεκριμένη είναι απο απόσταση 1860 χιλιομέτρων. Κατά την διάρκεια της προσέγγισης θα εξετασθεί η περιοχή που φιλοξενεί τα &#34;tiger stripes&#34; που βρίσκεται στο νότιο τμήμα του δορυφόρου. Τελευταία ευκαιρία για να ανακαλύψουμε τι κρύβεται κάτω απο τις ρωγμές της επιφάνειας, επειδή αυτό το τμήμα θα βυθιστεί στο σκοτάδι για τα επόμενα χρόνια</p>
<p><a href="http://vossinakis.wordpress.com/files/2009/11/n00146709.jpg"><img src="http://vossinakis.wordpress.com/files/2009/11/n00146709.jpg" alt="" title="n00146709" width="468" height="468" class="alignnone size-full wp-image-365" /></a></p>
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<title><![CDATA[]]></title>
<link>http://vossinakis.wordpress.com/2009/11/21/362/</link>
<pubDate>Sat, 21 Nov 2009 17:47:00 +0000</pubDate>
<dc:creator>vossinakis</dc:creator>
<guid>http://vossinakis.wordpress.com/2009/11/21/362/</guid>
<description><![CDATA[http://saturn.jpl.nasa.gov/multimedia/images/raw/casJPGBrowseS55/N00146709.jpg Cassini fly-by . 1860]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p><a href="http://saturn.jpl.nasa.gov/multimedia/images/raw/casJPGBrowseS55/N00146709.jpg">http://saturn.jpl.nasa.gov/multimedia/images/raw/casJPGBrowseS55/N00146709.jpg</a></p>
<p>Cassini fly-by . 1860 . &#8220;tiger stripes&#8221; . ,</p>
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<title><![CDATA[Images from Enceladus!]]></title>
<link>http://lightsinthedark.wordpress.com/2009/11/21/images-from-enceladus/</link>
<pubDate>Sat, 21 Nov 2009 17:46:02 +0000</pubDate>
<dc:creator>J. Major</dc:creator>
<guid>http://lightsinthedark.wordpress.com/2009/11/21/images-from-enceladus/</guid>
<description><![CDATA[Enceladus&#39; ice geysers in action The raw images from Cassini&#8217;s eighth flyby of Enceladus a]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><div id="attachment_1381" class="wp-caption aligncenter" style="width: 610px"><a href="http://lightsinthedark.wordpress.com/files/2009/11/n00146701_adj.jpg"><img class="size-full wp-image-1381" title="N00146701_adj" src="http://lightsinthedark.wordpress.com/files/2009/11/n00146701_adj.jpg" alt="" width="600" height="600" /></a><p class="wp-caption-text">Enceladus&#39; ice geysers in action</p></div>
<p>The raw images from Cassini&#8217;s eighth flyby of Enceladus are in! And they don&#8217;t disappoint&#8230;the highlight of the set so far, in my opinion, is the image above showing the moon&#8217;s signature ice geysers erupting from fracture lines called &#8220;tiger stripes&#8221; surrounding the south pole. Highlighted by sunlight, the plumes follow the lines of the fractures across the terminator of Enceladus&#8217; night side, their individual sources easily visible. Amazing!!! (Image was rotated 180º from its <a href="http://saturn.jpl.nasa.gov/photos/raw/rawimagedetails/index.cfm?imageID=207263" target="_blank">original</a>, and some digital interlacing was removed via Photoshop.)</p>
<p>Below are more images, some taken closer to the surface showing the moon&#8217;s incredibly rugged and tortured icy terrain. Cassini came within just under 1000 miles of the surface of Enceladus in this latest flyby.</p>
<div id="attachment_1373" class="wp-caption aligncenter" style="width: 610px"><a href="http://lightsinthedark.wordpress.com/files/2009/11/n00146709.jpg"><img class="size-full wp-image-1373" title="N00146709" src="http://lightsinthedark.wordpress.com/files/2009/11/n00146709.jpg" alt="" width="600" height="600" /></a><p class="wp-caption-text">Deep gashes in Enceladus</p></div>
<div id="attachment_1374" class="wp-caption aligncenter" style="width: 610px"><a href="http://lightsinthedark.wordpress.com/files/2009/11/n00146705.jpg"><img class="size-full wp-image-1374" title="N00146705" src="http://lightsinthedark.wordpress.com/files/2009/11/n00146705.jpg" alt="" width="600" height="600" /></a><p class="wp-caption-text">&#34;Baghdad Sulcus&#34;, one of Enceladus&#39; plume-producing furrows</p></div>
<div id="attachment_1375" class="wp-caption aligncenter" style="width: 610px"><a href="http://lightsinthedark.wordpress.com/files/2009/11/n00146722.jpg"><img class="size-full wp-image-1375" title="N00146722" src="http://lightsinthedark.wordpress.com/files/2009/11/n00146722.jpg" alt="" width="600" height="600" /></a><p class="wp-caption-text">Tortured terrain: new fractures cut old craters</p></div>
<div id="attachment_1376" class="wp-caption aligncenter" style="width: 610px"><a href="http://lightsinthedark.wordpress.com/files/2009/11/enceladus_ering.jpg"><img class="size-full wp-image-1376" title="enceladus_Ering" src="http://lightsinthedark.wordpress.com/files/2009/11/enceladus_ering.jpg" alt="" width="600" height="600" /></a><p class="wp-caption-text">Enceladus&#39; jets feed the hazy E ring</p></div>
<div id="attachment_1379" class="wp-caption aligncenter" style="width: 610px"><a href="http://lightsinthedark.wordpress.com/files/2009/11/6005_14139_1.jpg"><img class="size-full wp-image-1379" title="6005_14139_1" src="http://lightsinthedark.wordpress.com/files/2009/11/6005_14139_1.jpg" alt="" width="600" height="600" /></a><p class="wp-caption-text">10,000 miles from target: Enceladus and its secrets await further investigation</p></div>
<p>UPDATE: the below image (rotated 180º) was just received&#8230;note the moon&#8217;s shadow being cast across the geyser plumes to the right. It just keeps getting better!!! Fan-tastic. <img src='http://s.wordpress.com/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> </p>
<div id="attachment_1385" class="wp-caption aligncenter" style="width: 610px"><a href="http://lightsinthedark.wordpress.com/files/2009/11/n00146847_180.jpg"><img class="size-full wp-image-1385" title="N00146847_180" src="http://lightsinthedark.wordpress.com/files/2009/11/n00146847_180.jpg" alt="" width="600" height="600" /></a><p class="wp-caption-text">Enceladus&#39; southern geyser fields</p></div>
<p>Images: NASA/JPL/Space Science Institute</p>
<p><a title="Bookmark and Share" href="http://www.addthis.com/bookmark.php?v=250&#38;pub=xa-4a94992b2e4e6291" target="_blank"><img src="http://s7.addthis.com/static/btn/v2/lg-share-en.gif" alt="Bookmark and Share" width="148" height="19" /></a></p>
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<title><![CDATA[Access Internet/Local Website from Your Windows Mobile Device Emulators]]></title>
<link>http://kiranpatils.wordpress.com/2009/11/19/access-internetlocal-website-from-your-windows-mobile-device-emulators/</link>
<pubDate>Thu, 19 Nov 2009 17:16:27 +0000</pubDate>
<dc:creator>kiranpatils</dc:creator>
<guid>http://kiranpatils.wordpress.com/2009/11/19/access-internetlocal-website-from-your-windows-mobile-device-emulators/</guid>
<description><![CDATA[Challenge If you want to access any website Or You want your locally developed mobile application/we]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><h5>Challenge</h5>
<p>If you want to access any website Or You want your locally developed mobile application/web application to be viewed in <strong>Windows Device Emulator</strong> then you are at the right post.</p>
<h5>Solution</h5>
<ol>
<li>Download <a title="ActiveSync Download" href="http://www.microsoft.com/downloads/details.aspx?familyid=7269173a-28bf-4cac-a682-58d3233efb4c&#38;displaylang=en&#38;Hash=KhYiHcwex%2fLHj2xIf4x8DDJ%2b623WmHOnnEpIaxfe%2fMYJsD%2bfLWuleBXxKUGmqbqIeZkF%2bjiBiRozHCJ7C4LD0w%3d%3d" target="_blank">ActiveSync</a> and install on your local machine where you would like to run Emulator<a title="How to setup ActiveSync" href="http://www.pocketpcfaq.com/faqs/activesync/activesync4.0.htm" target="_blank">. How to setup ActiveSync?</a></li>
<li>Open Visual Studio and click on Tools &#124; Connect to Device:</li>
</ol>
<p><a href="http://kiranpatils.files.wordpress.com/2009/11/clip_image002.jpg"><img style="display:block;float:none;margin-left:auto;margin-right:auto;border:0;" title="clip_image002" src="http://kiranpatils.files.wordpress.com/2009/11/clip_image002_thumb.jpg?w=244&#038;h=155" border="0" alt="clip_image002" width="244" height="155" /></a></p>
<ol>
<li>Select Device emulator to run and say connect.</li>
</ol>
<p><a href="http://kiranpatils.files.wordpress.com/2009/11/clip_image004.jpg"><img style="display:block;float:none;margin-left:auto;margin-right:auto;border:0;" title="clip_image004" src="http://kiranpatils.files.wordpress.com/2009/11/clip_image004_thumb.jpg?w=310&#038;h=225" border="0" alt="clip_image004" width="310" height="225" /></a></p>
<ol>
<li>It will open your device emulator:</li>
</ol>
<p><a href="http://kiranpatils.files.wordpress.com/2009/11/clip_image006.jpg"><img style="display:block;float:none;margin-left:auto;margin-right:auto;border:0;" title="clip_image006" src="http://kiranpatils.files.wordpress.com/2009/11/clip_image006_thumb.jpg?w=316&#038;h=226" border="0" alt="clip_image006" width="316" height="226" /></a></p>
<ol>
<li>Verify that ActiveSync is up and running by its symbol in Notification Area.</li>
</ol>
<p><a href="http://kiranpatils.files.wordpress.com/2009/11/clip_image008.jpg"><img style="display:block;float:none;margin-left:auto;margin-right:auto;border:0;" title="clip_image008" src="http://kiranpatils.files.wordpress.com/2009/11/clip_image008_thumb.jpg?w=38&#038;h=40" border="0" alt="clip_image008" width="38" height="40" /></a></p>
<ol>
<li>Open Device Emulator Manager</li>
</ol>
<p><a href="http://kiranpatils.files.wordpress.com/2009/11/clip_image010.jpg"><img style="display:block;float:none;margin-left:auto;margin-right:auto;border:0;" title="clip_image010" src="http://kiranpatils.files.wordpress.com/2009/11/clip_image010_thumb.jpg?w=190&#038;h=281" border="0" alt="clip_image010" width="190" height="281" /></a></p>
<ol>
<li>Currently running Device Emulator Manager will be shown in Green.</li>
</ol>
<p style="text-align:center;"><a href="http://kiranpatils.files.wordpress.com/2009/11/clip_image012.jpg"><img class="aligncenter" style="display:inline;border:0;" title="clip_image012" src="http://kiranpatils.files.wordpress.com/2009/11/clip_image012_thumb.jpg?w=315&#038;h=232" border="0" alt="clip_image012" width="315" height="232" /></a></p>
<ol>
<li>Right click and say “<strong>Cradle”</strong></li>
</ol>
<p><a href="http://kiranpatils.files.wordpress.com/2009/11/clip_image014.jpg"><img style="display:block;float:none;margin-left:auto;margin-right:auto;border:0;" title="clip_image014" src="http://kiranpatils.files.wordpress.com/2009/11/clip_image014_thumb.jpg?w=311&#038;h=218" border="0" alt="clip_image014" width="311" height="218" /></a></p>
<ol>
<li>As you click on Cradle ActiveSync window will popup. Select <strong>Guest Partnership</strong>[Or better do cancel it will by default to <strong>Guest Mode</strong>]. If your Emulator got synced with ActiveSync then Notification Icon will go Green.</li>
</ol>
<ol>
<li>Now you are ready to access website.</li>
</ol>
<ol>
<li>
<ol>
<li>Internet – Enter your URL.</li>
</ol>
</li>
</ol>
<p><a href="http://kiranpatils.files.wordpress.com/2009/11/clip_image016.jpg"><img style="display:block;float:none;margin-left:auto;margin-right:auto;border:0;" title="clip_image016" src="http://kiranpatils.files.wordpress.com/2009/11/clip_image016_thumb.jpg?w=200&#038;h=315" border="0" alt="clip_image016" width="200" height="315" /></a></p>
<ol>
<li>
<ol>
<li>Local – To Access your Local Website which is running on <span style="text-decoration:underline;">Cassini(Development Web Server). </span>To access it you need to access it by IP ADDRESS:PORTNUMBER. Please note that you can’t access it by <strong>localhost:PORTNO </strong>Because localhost points to Emulator’s localhost and it will never go to your machine. You have to see both Emulator and your local machine as a two different devices even though they are running on same machine.</li>
</ol>
</li>
</ol>
<p><a href="http://kiranpatils.files.wordpress.com/2009/11/clip_image018.jpg"><img style="display:block;float:none;margin-left:auto;margin-right:auto;border:0;" title="clip_image018" src="http://kiranpatils.files.wordpress.com/2009/11/clip_image018_thumb.jpg?w=225&#038;h=344" border="0" alt="clip_image018" width="225" height="344" /></a></p>
<p>If this blog helped you. Say a big thanks to my friends who always give me a shout whenever they found something challenging like this and inspire me to learn a new things which finally inspires me to pen down on my blog and share with you <img src='http://s.wordpress.com/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> </p>
<p>Happy Emulating!</p>
<p><strong><span style="text-decoration:underline;">Webliography</span></strong></p>
<p><a href="http://www.pocketpcfaq.com/faqs/activesync/activesync4.0.htm" target="_blank">Setup ActiveSync</a></p>
<p><a href="http://blogs.msdn.com/akhune/archive/2005/11/16/493329.aspx" target="_blank">Nice blog – Thanks to this blog</a></p>
<p><a href="http://www.devx.com/tips/Tip/41667" target="_blank">If you have Windows Vista or Later</a></p>
<p><a href="http://nino.net/blog/wm5emulatorinternetconnectivitywithoutactivesync/" target="_blank">Accessing Device Emulator Without ActiveSync</a></p>
<h5>Feedback</h5>
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<title><![CDATA[Christmas is getting nearer!]]></title>
<link>http://globalmapping.wordpress.com/2009/11/19/christmas-is-getting-nearer/</link>
<pubDate>Thu, 19 Nov 2009 14:43:09 +0000</pubDate>
<dc:creator>globalmapping</dc:creator>
<guid>http://globalmapping.wordpress.com/2009/11/19/christmas-is-getting-nearer/</guid>
<description><![CDATA[I thought I&#8217;d write a quick blog for those of you still try to find that &#8217;something diff]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>I thought I&#8217;d write a quick blog for those of you still try to find that &#8217;something different&#8217;.</p>
<p>How about a <a title="Canvas Wall Hanging" href="http://www.mapstop.co.uk/products.aspx?q=Canvas+Wall+Hanging">canvas map wall hanging</a>, the ultimate in armchair map reading! Or maybe <a title="Cassini Placemats" href="http://www.mapstop.co.uk/cat630_Cassini-Placemats-and-Coasters.aspx">placemats and coasters </a>centered on an area of your choice . Choose from 1833 &#8211; present day.</p>
<p>Jigsaws are a favourite of many. We have an interesting range including <a title="Mazzle jigsaw" href="http://www.mapstop.co.uk/products.aspx?q=Mazzle">Mazzle</a> , the jigsaw for your walking friends, Jigsaws <a title="Cassini jigsaws" href="http://www.mapstop.co.uk/cat631_Cassini-Jigsaws.aspx">centered on your area</a> (again choose from 1833 &#8211; present day) or an <a title="Children's jigsaw" href="http://www.mapstop.co.uk/cat445_Children-s-Jigsaw-Puzzles.aspx">educational jigsaw</a> for the children.</p>
<p>If you are stuck for any mapping Christmas ideas, always remember, you can give us a call on 01280 840770.</p>
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<title><![CDATA[Enceladus torna-se no melhor candidato no Sistema Solar para albergar vida]]></title>
<link>http://movv.org/2009/11/18/enceladus-torna-se-no-melhor-candidato-no-sistema-solar-para-albergar-vida/</link>
<pubDate>Wed, 18 Nov 2009 05:33:26 +0000</pubDate>
<dc:creator>Clavis Prophetarum</dc:creator>
<guid>http://movv.org/2009/11/18/enceladus-torna-se-no-melhor-candidato-no-sistema-solar-para-albergar-vida/</guid>
<description><![CDATA[http://apod.nasa.gov Um estudo produzido pelos cientistas Nikolai Brillianton, da Universidade de Le]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><div class="wp-caption alignnone" style="width: 281px"><img class="  " src="http://apod.nasa.gov/apod/image/0710/PIA08386_enceladus_r.jpg" alt="http://apod.nasa.gov" width="271" height="237" /><p class="wp-caption-text">http://apod.nasa.gov</p></div>
<p>Um estudo produzido pelos cientistas Nikolai Brillianton, da Universidade de Leicester no Reino Unido e Juergen Schmidt, da Universidade de Potsdam, Alemanha indica que os oceanos de água salgada que se acredita existirem sob a calote de gelo de Enceladus, um satélite de Saturno, têm condições para alojar formas de vida não muito diferentes daquelas que existiam na Terra há alguns milhões de anos.</p>
<p>As observações da sonda Cassini em 2005 revelaram a existência de géiseres com mais de cem metros de altura, de vapor de água e gelo, oriundo de um oceano subterrâneo. O estudo aponta para a existência em Enceladus das três condições fundamentais à eclosão de vida: energia, água líquida e elementos químicos.</p>
<p>Além de Enceladus, crê-se que Europa e Ganimedes, luas de Júpiter, também têm oceanos subterrâneos, mas não tão perto da superfície, ou seja, não apenas a alguns metros, mas quilómetros&#8230; Essa característica pode favorecer o envio de uma sonda para Ganimedes, de forma a estudar mais de perto a possibilidade de existência de vida, realizando um furo com apenas alguns metros de profundidade até chegar ao oceano subterrâneo. Até agora, a NASA parece mais focada em enviar um <em>Lander </em>para Europa, enquanto que a ESA colocou o regresso a Titã, como prioritário. Ambos os locais podem alojar vida, de facto, (no caso de Titã, bem exótica&#8230;), mas este novo estudo vem colocar Ganimedes também na agenda e talvez ocorra assim um recentramento das prioridades das duas agências espaciais, já que uma missão a Ganimedes seria mais fácil e potencialmente mais produtiva do que uma missão ao exótico Titã ou aos longínquos oceanos de Europa&#8230;</p>
<p><strong>Fonte:</strong><br />
<a href="http://aeiou.expresso.pt/lua-de-saturno-pode-ter-formas-de-vida=f540140" target="_blank">http://aeiou.expresso.pt/lua-de-saturno-pode-ter-formas-de-vida=f540140</a></p>
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<title><![CDATA[Enceladus and Rhea]]></title>
<link>http://lightsinthedark.wordpress.com/2009/11/17/enceladus-and-tethys/</link>
<pubDate>Wed, 18 Nov 2009 04:34:08 +0000</pubDate>
<dc:creator>J. Major</dc:creator>
<guid>http://lightsinthedark.wordpress.com/2009/11/17/enceladus-and-tethys/</guid>
<description><![CDATA[Rhea passes behind Enceladus: click to play In another stately pas de deux as seen from the point of]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><div id="attachment_1340" class="wp-caption aligncenter" style="width: 610px"><a href="http://lightsinthedark.wordpress.com/files/2009/11/enceladus_tethys.gif"><img class="size-full wp-image-1340  " title="Enceladus_Rhea" src="http://lightsinthedark.wordpress.com/files/2009/11/enceladus_tethys.gif" alt="" width="600" height="357" /></a><p class="wp-caption-text">Rhea passes behind Enceladus: click to play</p></div>
<p>In another stately <em>pas de deux</em> as seen from the point of view of the Cassini spacecraft, moons Rhea and Enceladus slip past each other in their eternal travels around Saturn. This animation is made up of 20 raw images from Cassini, taken on November 15, level-adjusted and rotated 90º clockwise.</p>
<p>Enceladus is about to get another close look as well&#8230;.on Saturday, November 21, Cassini will perform its eighth flyby of the moon, making a visual reconnaissance of the south pole and its fractured terrain where the moon&#8217;s icy jets eminate from. It will then turn its attention to Rhea&#8230;I&#8217;m looking forward to some great images from this upcoming flyby! Stay tuned.</p>
<p>Edited 11/18: a similar animation by Emily Lakdawalla of <a href="http://www.planetary.org/blog/article/00002220/">The Planetary Society</a> says the larger moon above is Rhea. I believe her expertise over my uneducated guess. <img src='http://s.wordpress.com/wp-includes/images/smilies/icon_wink.gif' alt=';)' class='wp-smiley' />  I always have a hard time telling those two apart, especially at higher phase angles.</p>
<p>Raw images: NASA/JPL/SSI. Animation: J. Major.</p>
<p><a title="Bookmark and Share" href="http://www.addthis.com/bookmark.php?v=250&#38;pub=xa-4a94992b2e4e6291" target="_blank"><img src="http://s7.addthis.com/static/btn/v2/lg-share-en.gif" alt="Bookmark and Share" width="148" height="19" /></a></p>
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<title><![CDATA[No to huzia na Księżyc!]]></title>
<link>http://nicprostszego.wordpress.com/2009/11/17/no-to-huzia-na-ksiezyc/</link>
<pubDate>Tue, 17 Nov 2009 20:33:09 +0000</pubDate>
<dc:creator>Rafał</dc:creator>
<guid>http://nicprostszego.wordpress.com/2009/11/17/no-to-huzia-na-ksiezyc/</guid>
<description><![CDATA[Zaćmienie Księżyca /www.wikipedia.org 37 lat. Tyle czasu upłynęło od ostatniej załogowej misji na Ks]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><div id="attachment_1078" class="wp-caption alignright" style="width: 183px"><a href="http://nicprostszego.wordpress.com/files/2009/11/moon.jpg"><img class="size-full wp-image-1078   " title="moon" src="http://nicprostszego.wordpress.com/files/2009/11/moon.jpg" alt="" width="173" height="148" /></a><p class="wp-caption-text">Zaćmienie Księżyca /www.wikipedia.org</p></div>
<p style="text-align:justify;">37 lat. Tyle czasu upłynęło od <a href="http://pl.wikipedia.org/wiki/Apollo_17" target="_blank">ostatniej załogowej misji na Księżyc</a>. Tyle lat <a href="http://pl.wikipedia.org/wiki/NASA" target="_blank">NASA</a> czekała, aż klimat polityczny, naukowy, ekonomiczny i któż wie, jaki jeszcze, będą sprzyjające na tyle, by ogłosić, że czas na powrót ludzi na Srebrny Glob. Obama aby zostać prezydentem Stanów naobiecywał wiele. I chociaż niejedno można mu zarzucić, to jego poparcie dla nauki jest niezaprzeczalne (że wspomnę choćby tylko jego <a href="http://www.guardian.co.uk/world/2009/mar/06/embryonic-stem-cell-research-obama" target="_blank">wystąpienie na temat badań na komórkach macierzystych</a>. Szkoda, że zabrakło mu odwagi na zdecydowane <a href="http://www.guardian.co.uk/environment/2009/nov/15/copenhagen-climate-deal-obama" target="_blank">wystąpienie w Kopenhadze</a>). I zapewne dzięki temu odczuwa się niejakie ocieplenie klimatu także wokół NASA, która w tym roku zapowiedziała, że ludzie ponownie wylądują na Księżycu przed końcem 2020 roku.</p>
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<p style="text-align:justify;"><!--more--></p>
<p style="text-align:justify;">Jednym z najpoważniejszych wyzwań, jakie stoją przed astronautami, którzy jako pierwsi na Księżyc powrócą, jest problem surowców (podobny problem stoi też przed hipotetyczną załogową misją na Marsa, ale o tym może kiedy indziej). Oczywiście można ze sobą wozić zapasy powietrza i wody, ale na dłuższą metę, jeśli zachciałoby się nam Księżyc zasiedlać &#8211; lub przynajmniej budować na nim jakieś stacje badawcze &#8211; jest to rozwiązanie koszto- i energochłonne. Stąd też wyniki badań przeprowadzonych w czasie trwanai <a href="http://pl.wikipedia.org/wiki/Program_Apollo" target="_blank">programu Apollo</a> bardzo były niefortunne &#8211; astronauci na Księżycu wody bowiem nie znaleźli.</p>
<p style="text-align:justify;">Sytuacja zaczęła się jednak nieco ostatnio zmieniać. Zrobiono &#8211; za pomocą nowych sond &#8211; nowe pomiary. Powyciągano z lamusa stare. Niecały miesiąc temu w <em>Science</em> ukazała się seria prac na temat pomiarów zrobionych w 1999 roku <a href="http://pl.wikipedia.org/wiki/Cassini-Huygens" target="_blank">sondą Cassini</a> oraz w 2009 sondami <a href="http://pl.wikipedia.org/wiki/Deep_Impact" target="_blank">Deep Impact</a> oraz <a href="http://pl.wikipedia.org/wiki/Chandrayaan-1" target="_blank">Chandrayaan-1</a>. Pomiary spektroskopowe nie pozostawiły wątpliwości: na powierzchni Księżyca znajduje się warstewka grup hydroksylowych (-OH) oraz wody. Wszystkie te prace wskazały także, że wody szukano do tej pory w złym miejscu &#8211; wszystkie załogowe misje lądowały bowiem w okolicy równika Księżyca, podczas gdy wody jest znacznie więcej przy biegunach (przy czym tutaj jeszcze pojęcie <em>więcej </em>było bardzo, bardzo względne). Po tych doniesieniach świat naukowy z zapartym tchem oczekiwał ogłoszonego na 9. października uderzenia części systemu <a href="http://pl.wikipedia.org/wiki/LCROSS" target="_blank">LCROSS</a> w powierzchnię satelity.</p>
<p style="text-align:justify;">W zeszły piątek NASA wreszcie triumfalnie ogłosiła wyniki pomiarów systemu LCROSS: w wiecznie zacienionych kraterach w okolicach biegunów Księżyca znajduje się woda! Po uderzeniu części sondy w powierzchnię Księżyca, jej druga część zbierała dane. Na zdjęciach widać chmurę pyłu, zaraz po uderzeniu sondy w powierzchnię Księżyca. Badania potwierdziły jednak, że w chmurze tej oprócz pyłu właśnie znajduje się woda. Dokładniej: z krateru o średnicy 10 m wyparowało około stu litrów. Jest to znacznie więcej niż oczekiwano. Z drugiej strony, że powołam się na autorytet <a href="http://scienceblogs.com/catdynamics/" target="_blank">Steinna Sigurðssona</a> &#8211; naukowego bloggera, ale i zarazem astrofizyka z Penn State &#8211; ilość ta jest znikoma w porównaniu z najsuchszymi nawet obszarami na Ziemi. Są więc powody do optymizmu, ale nie wiem, czy do hurraoptymizmu, który prezentują panowie z NASA. Dobrze, bo wiemy, że wody na Księżycu jest znacznie więcej niż oczekiwalśmy (i że jest w ogóle). Źle, bo może się okazać, że odzysk wody z jakiejkolwiek formy, w której się znajduje, jest nieco bardziej skomplikowany niż odkręcenia kurka w kranie.</p>
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<div id="attachment_1086" class="wp-caption aligncenter" style="width: 415px"><a href="http://nicprostszego.wordpress.com/files/2009/11/pyl.jpg"><img class="size-full wp-image-1086 " title="pyl" src="http://nicprostszego.wordpress.com/files/2009/11/pyl.jpg" alt="lcross impact" width="405" height="289" /></a><p class="wp-caption-text">Zdjęcie z kamery pokazujące chmurę pyłu powstałą 20 sekund po uderzeniu sondy w Księżyc /©2009 NASA </p></div>
<p style="text-align:justify;">Niemniej nie sądźcie, że szerzę defetyzm. Bo nie szerzę (a przynajmniej staram się nie, to tylko mój wrodzony sceptycyzmo-realizm przeze mnie przemawia). Jest się z czego cieszyć. I jest duża szansa, że zanim na Księżycu ludzie wylądują ponownie, będziemy wiedzieli znacznie więcej, a być może nawet wystarczająco dużo, na temat tego gdzie woda się znajduje, w jakiej formie i jak ją wykorzystać&#8230;</p>
<blockquote>
<p style="text-align:justify;">&#8220;Detection of Adsorbed Water and Hydroxyl on the Moon&#8221;, Roger N. Clark, Science 326(5952): 562-4; DOI: <a href="http://dx.doi.org/10.1126/science.1178105" target="_blank">10.1126/science.1178105</a> (24 Sep 2009)</p>
<p style="text-align:justify;">&#8220;Temporal and Spatial Variability of Lunar Hydration As Observed by the Deep Impact Spacecraft&#8221;, Jessica M. Sunshine, Tony L. Farnham, Lori M. Feaga, Olivier Groussin, Frédéric Merlin, Ralph E. Milliken, Michael F. A’Hearn, Science 326(5952): 565-8; DOI: <a href="http://dx.doi.org/10.1126/science.1179788" target="_blank">10.1126/science.1179788</a> (24 Sep 2009)</p>
<p style="text-align:justify;">&#8220;Character and Spatial Distribution of OH/H2O on the Surface of the Moon Seen by M3 on Chandrayaan-1&#8243;, C. M. Pieters, J. N. Goswami, R. N. Clark, M. Annadurai, J. Boardman, B. Buratti, J.-P. Combe, M. D. Dyar, R. Green, J. W. Head, C. Hibbitts, M. Hicks, P. Isaacson, R. Klima, G. Kramer, S. Kumar, E. Livo, S. Lundeen, E. Malaret, T. McCord, J. Mustard, J. Nettles, N. Petro, C. Runyon, M. Staid, J. Sunshine, L. A. Taylor, S. Tompkins, P. Varanasi, Science 326(5952): 568-72; DOI: <a href="http://dx.doi.org/10.1126/science.1178658" target="_blank">10.1126/science.1178658</a> (24 Sep 2009)</p>
<p style="text-align:justify;"><a href="http://www.nasa.gov/mission_pages/LCROSS/main/" target="_blank">Strona NASA poświęcona sondzie LCROSS</a></p>
<p style="text-align:justify;"><a href="http://scienceblogs.com/startswithabang/2009/11/the_big_deal_about_lcross.php" target="_blank">Doniesienie o wydarzeniu na blogu <em>Starts with a Bang</em></a></p>
<p style="text-align:justify;"><a href="http://scienceblogs.com/catdynamics/2009/11/water_on_the_moon.php" target="_blank">Doniesienie o wydarzeniu na blogu <em>Cat Dynamics</em></a></p>
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<title><![CDATA[Cassini image of the week #1]]></title>
<link>http://explorationandlife.wordpress.com/2009/11/16/cassini-image-of-the-week-1/</link>
<pubDate>Mon, 16 Nov 2009 13:57:41 +0000</pubDate>
<dc:creator>wolfeii</dc:creator>
<guid>http://explorationandlife.wordpress.com/2009/11/16/cassini-image-of-the-week-1/</guid>
<description><![CDATA[I was going to post an update about Cassini&#8217;s imaging run of Enceladus, but then I realised th]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>I was going to post an update about Cassini&#8217;s imaging run of Enceladus, but then I realised that if I did that as often as I would like, the entire blog would be nothing but photos of the Saturnian system; hence the idea of the Cassini image of the week. All photos will come from the Cassini team&#8217;s <a href="http://ciclops.org/ir_index_main/Cassini">Image Diary</a>, which is definitely worth a browse.</p>
<p>So, without further ado: <a href="http://ciclops.org/view/5837/A_Slice_of_Iapetus">A Slice of Iapetus</a>:</p>
<p><img class="alignnone size-full wp-image-214" title="Iapetus" src="http://explorationandlife.wordpress.com/files/2009/11/5841_13789_11.jpg" alt="Iapetus" width="720" height="430" /></p>
<p style="text-align:right;">Image credit: NASA/JPL/Space Science Institute</p>
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