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Old Rhea...
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Caption NASA originale:"Cassini looks down upon Rhea, whose cratered surface was already ancient before any complex life developed on Earth. The terrain seen here has probably changed little in the past billion years (!). This view shows terrain on the Saturn-facing Hemisphere of Rhea. North is up.
The image was taken in visible light with the Cassini spacecraft narrow-angle camera on March 21, 2006 at a distance of approximately 94.000 Km (such as about 59.000 miles) from Rhea and at a phase angle of 109°. The image scale is about 558 mt (approx. 1.832 feet) per pixel".
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