Cassini captures striking image of Tethys
Tethys’ dark side is faintly illuminated by reflected light from Saturn in this striking image captured by the Cassini–Huygens unmanned spacecraft.
The giant impact basin Odysseus (280 miles, or 450 kilometers, across) on the Saturn moon stands out brightly from the rest of the illuminated icy crescent. Odysseus is one of the largest impact craters and may have significantly altered the geologic history of Tethys.
Tethys is a mid-sized moon of Saturn about 1,060 km (660 mi) across. It was discovered by G. D. Cassini in 1684 and is named after the titan Tethys of Greek mythology.
The view was acquired on May 9, 2015 at a distance of approximately 186,000 miles (300,000 kilometers) from Tethys.