Tethys Flyby

On 24 September 2005 Cassini flew by Tethys at an altitude of 1,500 kilometres on a trajectory that enabled it to peer into Ithaca Chasma at a high Sun elevation in order to study whether the process that formed this feature was associated with the impact that made the giant crater Odysseus. It was evident from impacts within the chasm that it was ancient. Landslides in large craters had modified their outlines and blanketed their floors with debris.

The south polar region of Tethys on 24 September 2005, with the southernmost part of Ithaca Chasma showing scarps and ridges peppered with impacts indicating that it is ancient (left), and landslides in large craters.

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