Keeping a close watch on the outer portion of Saturn's B ring, NASA's Cassini spacecraft records the complex inward and outward movement of the edge More
Keeping a close watch on the outer portion of Saturn's B ring, NASA's Cassini spacecraft records the complex inward and outward movement of the edge of the ring. This ring movement resembles the suspected behavior of spiral disk galaxies. The position of the outer edge of the B ring, shown here crossing the middle of the frame, varies with time in this concatenation of 301 images taken an average of 1 minute, 50 seconds apart, over the span of about nine hours. The total variation of the edge, from the innermost to outermost locations, is 200 kilometers (120 miles). The eccentric Huygens Ringlet, another very narrow ringlet discovered by Cassini, and the innermost of the bands of ring material in the Cassini Division, a low-density region once thought to be empty, all appear in the top of the frame. Cassini scientists have determined that the complicated radial variations in the B ring edge are caused by the presence of four scalloped patterns, all independently moving around the ring. One pattern, with two lobes, is present because of the gravitational perturbations from the moon Mimas, which alter the ring particle orbits because of a repetitive configuration of particle and satellite orbital positions known as a Lindblad resonance; this pattern always stays fixed with respect to Mimas. The other patterns with one, two, and three lobes respectively, travel around the ring with differing speeds and are believed to be natural modes of oscillation of the ring in this ...Hide
“Life in Space” is an outer space science fiction comedy TV Show. Two years in the making, Life in Space, is the story of the Galaxy Federation More
“Life in Space” is an outer space science fiction comedy TV Show. Two years in the making, Life in Space, is the story of the Galaxy Federation star ship, the Star Filet on intergalactic missions to protect the galaxy. The show is jam packed with aliens, robots, laser battles, and over the top special effects! In our first episode, the Star Federation must protect the planet of Zar-Fon-Agon from an invasion by the evil asshole Gremlock aliens. However, challenges arise in normal operations when a new crew member becomes a disruption on the ship. Priding themselves on the tolerance of other races, religions, and species, the captain and crew must figure out how to defeat the invaders while working respectfully alongside General Kocklian. Please Visit: http://kck.st/ciXpTh http://lifelifeininspacespace.blogspot.com/ http://vimeo.com/groups/superouterspacefuture http://vimeo.com/channels/superouterspaceHide
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