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Explanation: Jupiter's moons circle Jupiter. The featured video depicts Europa and Io, two of Jupiter's largest moons, crossing in front of the grand planet's Great Red Spot, the largest known storm system in our Solar System. The video was composed from images taken by the robotic Cassini spacecraft as it passed Jupiter in 2000, on its way to Saturn. The two moons visible are volcanic Io, in the distance, and icy Europa. In the time-lapse video, Europa appears to overtake Io, which is odd because Io is closer to Jupiter and moves faster. The explanation is that the motion of the fast Cassini spacecraft changes the camera location significantly during imaging. Jupiter is currently being visited by NASA's robotic Juno spacecraft, while ESA's Jupiter Icy Moons Explorer (JUICE), launched in April, is enroute.
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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: Jupiter - Io - Europa
Publications with words: Jupiter - Io - Europa
See also:
- APOD: 2025 December 14 Á Juno Flyby of Ganymede and Jupiter
- APOD: 2025 May 25 Á Beneath Jupiter
- Painting with Jupiter
- APOD: 2025 April 2 Á Jupiter and Ring in Infrared from Webb
- APOD: 2025 March 9 Á Cyclones at Jupiters North Pole
- APOD: 2025 February 16 Á Perijove 11: Passing Jupiter
- Stereo Jupiter near Opposition