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Wispy Terrain on Dione

10 Sep 2017, 17:00 UTC
Wispy Terrain on Dione
(200 words excerpt, click title or image to see full post)

NASA dixit:
“December 23, 2012. The famed wispy terrain on Saturn’s moon Dione is front and center in this recent Cassini spacecraft image. The ”wisps” are fresh fractures on the trailing hemisphere of the moon’s icy surface. This view is centered on 55 degrees north latitude and 85 degrees west longitude on Dione (698 miles, or 1,123 kilometers across). North is up and rotated 39 degrees to the left.
The image was taken in visible light with the Cassini spacecraft narrow-angle camera. The view was obtained at a distance of approximately 153,000 miles (246,000 kilometers) from Dione. Image scale is 0.9 miles (1.5 kilometers) per pixel.”
“After almost 20 years in space, NASA’s Cassini spacecraft begins the final chapter of its remarkable story of exploration: its Grand Finale. Between April and September 2017, Cassini will undertake a daring set of orbits that is, in many ways, like a whole new mission. Following a final close flyby of Saturn’s moon Titan, Cassini will leap over the planet’s icy rings and begin a series of 22 weekly dives between the planet and the rings.
No other mission has ever explored this unique region. What we learn from these final orbits will help ...

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