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Explanation: What telling impurities taint the ice plumes of Enceladus? To help answer this question, the robotic Cassini spacecraft dove last week to within 30 kilometers of Saturn's ice-plume emitting moon. At this closest-ever approach, Cassini attempted to sniff and obtain chemical data on particles ejected from Enceladus' regular surface, while at other times Cassini flew right through -- and sampled -- ice geysers directly. Searches in the data for impurity clues in the water-ice dominated plumes and surface ejecta are progressing. Although the main purpose of this flyby was particle analysis, several interesting images are emerging. Visible in the above image, for example, is an unusual gray sheen running vertically up the image center that might be water vapor escaping from surface canyons. Other notable features visible above include vast plains of craterless icy grooves, the day-night terminator across the image left, and an area near the top comparatively rich in craters. Cassini is scheduled to buzz by Enceladus in an imaging run near the end of this month.
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NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: Enceladus - cassini spacecraft
Publications with words: Enceladus - cassini spacecraft
See also:
- APOD: 2025 February 23 Á Saturn in Infrared from Cassini
- APOD: 2025 January 19 Á Titan Touchdown: Huygens Descent Movie
- APOD: 2024 August 25 Á Fresh Tiger Stripes on Saturns Enceladus
- Crescent Enceladus
- APOD: 2023 February 5 Á Enceladus by Saturnshine
- Saturn in Infrared from Cassini
- Enceladus in Infrared