Explanation: Why is Io green at night? In this just-released nighttime picture of Jupiter's moon Io, the red spots clearly show Io's current volcanically active regions. But what is causing the global green sheen? This telling picture was taken by the automated Galileo spacecraft currently orbiting Jupiter while Io was in Jupiter's shadow. One hypothesis is that the green glow is caused by a different type of aurora resulting from high-energy particles interacting with Io's volcanic plumes.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: Io - vulkan - KA Galileo - Io Publikacii so slovami: Io - vulkan - KA Galileo - Io
Sm. takzhe: Vulkan Vil'yarrika na fone neba Mlechnyi Put' nad goroi Etna Luna i kol'ca iz dyma nad goroi Etna Evropa ot "Galileo" Sputnik Io ot kosmicheskogo apparata "Yunona" Venera, Luna i dymyashaya gora Sputniki nad Yupiterom Vse publikacii na tu zhe temu >>