Questions tagged [aurora]

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How come the northern and southern lights are the same?

Not an expert, hence the question. To my knowledge the magnetic field of the earth travels south to north. Wouldn't there be a bias on whether the charged particles causing the auroras are negatively ...
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Why is Ganymede's aurora only visible in ultraviolet while Earth's is bright green and red?

GANYMEDE AURORAE NASA's Hubble Space Telescope observed a pair of auroral belts encircling the Jovian moon Ganymede. The belts were observed in ultraviolet light by the Space Telescope Imaging ...
2
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Could Ganymede's aurora be seen with the naked eye?

If one was orbiting in the Jovian system, as depicted in this artist conception, could the aurora be seen unassisted? Hubblesite-Illustration Credit: NASA, ESA, and G. Bacon (STScI)