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Explanation: Jupiter has aurorae. Like Earth, the magnetic field of the gas giant funnels charged particles released from the Sun onto the poles. As these particles strike the atmosphere, electrons are temporarily knocked away from existing gas molecules. Electric force attracts these electrons back. As the electrons recombine to remake neutral molecules, auroral light is emitted. In the above recently released photograph by the Hubble Space Telescope taken in ultraviolet light, the aurorae appear as annular sheets around the pole. Unlike Earth's aurorae, Jupiter's aurorae include several bright streaks and dots. These marks are caused by magnetic flux tubes connecting Jupiter to its largest moons. Specifically, Io caused the bright streak on the far left, Ganymede caused the bright dot below center, and Europa caused the dot to its right.
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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 - Jupiter
Publications with words: aurora - Jupiter
See also:
- APOD: 2023 March 27 Á Aurora Over Arctic Henge
- APOD: 2023 March 15 Á Jupiter and Venus Converge over Germany
- APOD: 2023 March 6 Á Jupiter and Venus from Earth
- APOD: 2023 March 5 Á Jupiter and Venus over Italy
- 10 Days of Venus and Jupiter
- Crescent Moon Occultation
- APOD: 2023 January 22 Á In Green Company: Aurora over Norway