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Cassini’s view of Saturn’s rings still dazzling

1 May 2018 Astronomy Now

NASA’s Cassini spacecraft plunged into the atmosphere of Saturn in 2017, concluding a hugely successful mission to explore the planet, its rings and icy moons. The spacecraft’s close-up images of Saturn’s ring system likely will remain unmatched for decades to come.

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Saturn’s past and present moons

12 April 2016 Astronomy Now

Saturn’s beautiful rings form a striking feature, cutting across this image of two of the planet’s most intriguing moons: Titan (diameter, 3,200 miles) and Enceladus (313 miles). The rings have been a source of mystery since their discovery in 1610 by Galileo Galilei, but there is not full agreement on how they formed.

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Bright impact basin on Saturn’s icy moon Tethys

28 July 2015 Astronomy Now

In this NASA/ESA Cassini mission image of Saturn’s 660-mile-wide moon Tethys, the giant impact basin Odysseus stands out brightly from the rest of the illuminated icy crescent. Some 280 miles across, Odysseus is one of the largest impact craters on Saturn’s icy moons, and may have significantly altered the geologic history of Tethys.

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Triple crescents

22 June 2015 Astronomy Now

A single crescent moon is a familiar sight in Earth’s sky, but with Saturn’s many moons, you can see three or even more. Rhea (top), Titan and Mimas (bottom) align for this image from NASA’s ongoing Cassini mission.