Jupiter has auroras. We've known this for a while, Hubble spotted them. But they're not regular auroras, they are the most powerful in the solar system. They're also huge; the earth could fit inside them. Yeah, it's awesome. So, before you ask: Yes, Jupiter's aurora is like ours, only larger, except that it is completely not like ours at all.
On Earth, electrons in the magnetic field in our atmosphere get excited by the sun's energy and bump into air particles lighting up the skies. So, scientists thought they'd find something similar on Jupiter. Turns out that was not the case.
We don't understand what is causing Jupiter's auroras, exactly. NASA's ideas are "all wrong" Isn't that fantastic? Using a detector called JEDI, the Juno probe orbited our jovial planet repeatedly, taking measurements of its magnetic field.
We knew Jupiter's magnetic field is the strongest of any planet in our solar system, which should make big aurora, but it turns out it's smaller than expected. Not to mention the auroras don't behave like Earth's at all which may defy the laws of physics! To say the least, it's baffling.
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