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Explanation: Alluring aurora surrounding Io (eye-oh) appear as a ghostly glow while the volcanic moon orbits within Jupiter's dark shadow. Gas giant Jupiter is off to the right of this image, recorded in May by the robot Galileo spacecraft's solid state imaging camera from a distance of about 1.3 million kilometers. Energetic charged particles colliding with Io's atmospheric gases create the vivid colors and produce the red and green glow analogous to the aurora of Earth. The striking blue light is caused by dense volcanic plumes and may indicate regions electrically connected to Jupiter itself.
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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: aurora - Io - Jupiter's Moons
Publications with words: aurora - Io - Jupiter's Moons
See also:
- APOD: 2024 May 12 Á Red Aurora over Poland
- APOD: 2024 January 14 Á Dragon Aurora over Iceland
- APOD: 2024 January 3 Á A SAR Arc from New Zealand
- APOD: 2023 December 12 Á Aurora and Milky Way over Norway
- The SAR and the Milky Way
- APOD: 2023 November 5 Á Creature Aurora Over Norway
- APOD: 2023 October 23 Á Moon Io from Spacecraft Juno