--- title: Saturn's Moon Dione Seen in Newly-Released Image description: NASA’s Cassini spacecraft said goodbye to Saturn’s moon Dione. Photos of the final encounter expected to reach Earth in the next few days canonical: https://time.com/4001490/see-farewell-saturn-moon/ author: Olivier Laurent article:opinion: false article:content_tier: free article:published_time: 2015-08-18T15:14:39.000Z article:modified_time: 2026-05-11T05:02:00.822Z article:section: Science og:title: See a Newly-Released Image of Saturn's Moon Dione og:description: Despite the high-resolution images Cassini sent back, Dione remains a mystery og:url: https://time.com/4001490/see-farewell-saturn-moon/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/bltb3b66b48e54c3243/69885fbc3c163974ad4594f1/saturn-cassini.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 og:image:width: 2560 og:image:height: 1440 og:image:alt: Saturn Moon Dione Cassini Farewell og:type: article twitter:card: summary_large_image twitter:title: See a Newly-Released Image of Saturn's Moon Dione twitter:description: Despite the high-resolution images Cassini sent back, Dione remains a mystery twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/bltb3b66b48e54c3243/69885fbc3c163974ad4594f1/saturn-cassini.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 ---  # See a Newly-Released Image of Saturn's Moon Dione > Sponsored content. 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It reaches 40,000 subscribers with a 34.2% open rate and a 2.1% click rate as of August 2026. #### Where can I follow the energy transition as a business story? Future Proof covers climate and energy as an economic and business story rather than only an environmental one. It publishes every Friday and is free at time.com/newsletters. #### Who writes Future Proof? Justin Worland, a senior correspondent at TIME and an award-winning climate journalist, writes Future Proof. #### Is Future Proof free? Yes. Future Proof is free at time.com/newsletters. by [Olivier Laurent](https://time.com/author/olivier-laurent/) ## Olivier Laurent Aug 18, 2015 3:14 PM UTC  A visible light image of Saturn's moon Dione captured with the Cassini spacecraft narrow-angle camera on April 11, 2015 and released on Aug. 17, 2015. A visible light image of Saturn's moon Dione captured with the Cassini spacecraft narrow-angle camera on April 11, 2015 and released on Aug. 17, 2015.NASA/JPL-Caltech/Space Science Institute/EPA by [Olivier Laurent](https://time.com/author/olivier-laurent/) ## Olivier Laurent Aug 18, 2015 3:14 PM UTC NASA released this never-before-seen image of Saturn’s moon Dione as the Cassini spacecraft said goodbye to it on August 17\. Photos of the final encounter are expected to reach Earth in the next few days. Cassini was the first spacecraft to enter Saturn’s orbit, and for the last 11 years, it’s been studying the planet and its [many satellites](http://time.com/3932307/triple-crescent-moons-cassini/) including Dione, Titan and Rhea. Cassini will now make a series of close moon flybys until late 2015, at which time it will begin a year-long setup of the mission’s daring finale, NASA said, when it will repeatedly dive through the space between Saturn and its rings. In the meantime, NASA’s scientists will await the final high-resolution images from Dione to come in, especially those the spacecraft will take of the moon’s north pole. They hope to find out if Dione has geological activity. “Dione has been an enigma, giving hints of active geologic processes, including a transient atmosphere and evidence of ice volcanoes,” says Bonnie Buratti, a Cassini science team member at NASA’s Jet Propulsion Laboratory in Pasadena, California. “But we’ve never found the smoking gun. The fifth flyby of Dione \[was\] our last chance.” ### Discover the Beauty of Saturn's Polar Vortex  The vortex of Saturn's north polar storm is seen in this false-color image taken from NASA's Cassini spacecraft. The eye is an estimated 1,250 miles across with cloud speeds as fast as 330 miles per hour. SSL/JPL-CalTech/NASA  A huge storm churned through the atmosphere in Saturn's northern hemisphere in July 2011. Universal History Archive/UIG/Getty Images  The Cassini spacecraft captured the storms at Saturn's north pole in this false color image released in April 2013\. The storm appears dark red while the fast-moving hexagonal jet stream framing it is a yellowish green. Low-lying clouds circling inside the hexagonal feature appear in orange. A second, smaller vortex pops out in teal at the lower right of the image. The rings of Saturn appear in vivid blue at the top right. NASA/JPL-Caltech/SSI  The highest-resolution view of the unique six-sided jet stream at Saturn's north pole known as "the hexagon." The eight frames of the movie were captured over 10 hours on Dec. 10, 2012. NASA/JPL-Caltech/SSI/Hampton University  A view of Saturn's north polar vortex and hexagon acquired at a distance of approximately 2 million miles (3 million kilometers) from Saturn. 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