At any time the Traveler space probe photographed Dione in 1980, it showed what appeared to be wispy skin tone facade its sprawling hemisphere. The base of these skin tone was highbrow, as all that was predictable was that the tangible has a high albedo and is thin plenty that it does not mysterious the part skin tone rear. One audacity was that almost immediately after its formation Dione was easily energetic, and accurate seep such as ice volcanism resurfaced a lot of its part, with the streaks forming from eruptions put aside cracks in Dione's part that slash put money on to the part as snow or ash. Future, after the confidential activity and resurfacing ceased, cratering continued basic on the affluent hemisphere and wiped out the color patterns represent.
This theory was recognized unacceptable by the Cassini probe flyby of December 13, 2004, which produced close-up images. These given away that the 'wisps' were in fact not ice deposits at all, but a bit durable ice cliffs twisted by tectonic fractures (chasmata); Dione has been given away as a world riven by giant fractures on its sprawling hemisphere.
The Cassini orbiter performed a nearer flyby of Dione at 500 km (310 mi) on October 11, 2005, and captured diagonal images of the cliffs, transmission that accurate of them are diverse hundred metres high.
See Dione's Icy Wisps to try expert about Dione's wispy terra firma.
The Cassini-Huygens charge is a empathize project of NASA, the European Make public Task and the Italian Make public Task. The Jet Propulsion Laboratory, a allocation of the California Tradition of Equipment in Pasadena, manages the charge for NASA's Science Task Directorate in Washington. The Cassini orbiter and its two onboard cameras were deliberate, full-grown and assembled at JPL. The imaging band is based at the Make public Science Tradition, Throw stones at, Colo.
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